RADIO'S

Comparison between UHF and VHF Radio Frequencies

There are two major formats for two-way radios. They are Ultra High Frequency (UHF) radio and Very High Frequency (VHF) radio. Both formats are effective ways to communicate with another person. There are a number of important factors to consider. These include where the systems will be used, how they will be used, and for what purpose or application. Let’s go over the key components of both frequencies to help you decide which suits your needs better.

VHF signals occupy the low end of the frequency spectrum, from 89.00 MHz to 216.00 MHz. The first wireless transmissions were made from the low frequency band, which has been in constant use ever since. This means that the bandwidth range is abundantly populated.

UHF systems operate in the bandwidth between approximately 450 MHz and 952 MHz. The Federal Communications Commission (FCC) allocated 70 additional channels in 1952 to accommodate the rapid expansion of television in the United States after World War II. UHF bandwidth frequencies are less populated than VHF frequencies.

In simple words, the primary advantage of UHF operation is that there is less chance of interference because of more available frequency spectrum. UHF signals tend to be clearer and are more readily transmitted through metal than VHF signals.

UHF wireless systems always cost more than similar VHF wireless systems. The extra cost of UHF equipment is due to the necessity of using more expensive ultra-high-frequency parts, the greater total number of parts required and the need for more expensive construction techniques.

Battery life for VHF wireless transmitters is almost always better than for similar UHF units. For larger wireless installations, the cost of antennas, cables, antenna splitters and preamplifiers are usually much less for VHF systems and performance is generally better. One disadvantage to VHF equipment can be its size. Since the frequency waves are bigger, an antenna must be bigger.

If the wireless equipment will be used in different cities, VHF systems operating on the special frequencies in the 169-172 MHz range will be a good economical choice (applicable in U.S. and Canada). However, these frequencies, which are sometimes referred to as “traveling frequencies,” are very popular, and are not a good choice for situations where large numbers of wireless systems are likely to be present, such as at trade shows and expositions. In such situations, frequency-agile UHF systems will be a better choice.

If you are using your Two Way radios inside buildings or in a city environment you should always buy UHF since its signal penetrate through walls far better than VHF. If you are only using your radios outdoors (ranching, farming, etc.) then VHF will give you a little more distance.

This particular article was organized by Devang Kakkad who frequently shares knowledge on the subject areas of technology and communication. He has also written detailed reviews of the best two way radios out there. He recently published his review on
Uniden BC72XLT
and
Midland 75-822
two way radios.

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150-Watt Portable PA System with Dual VHF Wireless Microphone System – Hisonic -PA-687S $249.95 The Hisonic portable PA (public address) system PA-687S includes a 80 watts powered speaker, a dual VHF wireless microphone system and one tripod speaker stand. It has everything you need for your sound amplification applications. No extra equipment to purchase! Open the boxes, plug them in and switch them on, let the show begin!The 8-inch speaker is rated at 80 watts continuously with a 150 watts peak power, it has a standard 1/4 inch microphone input jack where the speaker will be connected to the receiver of the wireless microphone system. The VHF dual wireless microphone system comes with two belt-pack transmitters and two hand-held microphones, the two VHF belt-pack transmitters come with two lapel microphones & two headset microphones. You can use any combination of two microphones at the same time without interferences.In order for your audience to enjoy the sound amplification to its fullest, it’s very important to install your speaker at the proper height. That’s where the speaker stand comes into play. It can effectively double the power output from your speaker in a large room by improving clarity and coverage. Conservatively rated at 95 LBS weight on the center tube, The Hisonic speaker stand is adjustable from 43 inches to 81 inches, its non-slip rubber feet spread from 32 to 44 inches, giving listeners an array of heights from which to choose. All metal surfaces are finished in flat black powder coat for long lasting good looks. Designed and engineered with precision construction, it offers perfect balance, durability and light weight and allows maximum flexibility for quick, easy, and portable operation.

240-Watt Portable PA System with Dual VHF Wireless Microphone System – Hisonic -PA-683S $299.99 The Hisonic portable PA (public address) system PA-683S includes a 240 watts peak powered speaker, a dual VHF wireless microphone system and one tripod speaker stand. It has everything you need for your sound amplification applications. No extra equipment to purchase! Open the boxes, plug them in and switch them on, let the show begin! The 8-inch speaker is rated at 120 watts continuously with a 240 watts peak power, it has a standard 1/4 inch XLR microphone input jack where the speaker will be connected to the receiver of the wireless microphone system. The VHF dual wireless microphone system comes with two belt-pack transmitters and two hand-held microphones, the two VHF belt-pack transmitters come with two lapel microphones and two headset microphones. You can use any combination of two microphones at the same time without interferences. In order for your audience to enjoy the sound amplification to its fullest, it’s very important to install your speaker at the proper height. That’s where the speaker stand comes into play. It can effectively double the power output from your speaker in a large room by improving clarity and coverage. Conservatively rated at 95 LBS weight on the center tube, The Hisonic speaker stand is adjustable from 43 inches to 81 inches, its non-slip rubber feet spread from 32 to 44, giving listeners an array of heights from which to choose. All metal surfaces are finished in flat black powder coat for long lasting good looks. Designed and engineered with precision construction, it offers perfect balance, durability and light weight and allows maximum flexibility for quick, easy, and portable operation.

300-Watt Portable PA System with Dual VHF Wireless Microphone System – Hisonic – PA-6541S $329.95 The Hisonic portable PA (public address) system PA-6541S includes a 240 watts powered speaker, a dual VHF wireless microphone system and one tripod speaker stand. It has everything you need for your sound amplification applications. No extra equipment to purchase! Open the boxes, plug them in and switch them on, let the show begin! The 12-inch speaker is rated at 150 watts continuously with a 240 watts peak power, it has a standard 1/4 inch XLR microphone input jack where the speaker will be connected to the receiver of the wireless microphone system. The VHF dual wireless microphone system comes with two belt-pack transmitters and two hand-held microphones, the two VHF belt-pack transmitters come with two lapel microphones and two headset microphones. You can use any combination of two microphones at the same time without interferences. In order for your audience to enjoy the sound amplification to its fullest, it’s very important to install your speaker at the proper height. That’s where the speaker stand comes into play. It can effectively double the power output from your speaker in a large room by improving clarity and coverage. Conservatively rated at 95 LBS weight on the center tube, The Hisonic speaker stand is adjustable from 43 inches to 81 inches, its non-slip rubber feet spread from 32 to 44 inches, giving listeners an array of heights from which to choose. All metal surfaces are finished in flat black powder coat for long lasting good looks. Designed and engineered with precision construction, it offers perfect balance, durability and light weight and allows maximum flexibility for quick, easy, and portable operation.

Acesonic UHF-2700 UHF Dual Wireless Microphone System $128.95 The Acesonic UHF-2700 UHF Dual Wireless Microphone System is a very affordable professional UHF wireless microphone. For the same price you would pay for a VHF wireless microphone system, you can get a system in UHF frequency range from Acesonic.Acesonic’s breakthrough design technology enables this UHF microphone system to operate in the newly FCC approved frequency range for less cost. Using the Acesonic UHF-2700, you’ll enjoy the benefit of operating in the UHF band which will get better reception and have less interference than other systems even in more populated areas because the UHF band is less crowded than the VHF band.Two antennas are built-in to capture the best RF signals possible which definitely ensures your voice comes through rich and clear just the way it was meant to be heard. Added bonuses are individual volume control, and balanced and an unbalanced output. Use it worry-free as this new system complies with the latest FCC regulations for wireless microphones. Whether you need a wireless microphone system for lecturing, presentations or entertainment, the UHF-2700 is the most reliable and affordable solution.

Antenna Toolkit $57.92 The new edition has been revised to include further cases of propagation, additional antennas and also two new chapters – Small Loop Antennas (a topic of considerable interest, which has been the subject of much recent debate in the amateur radio press); and Yagi Beam Antennas (widely used at HF and VHF). The CD software has also been updated. Joe Carr’s expertise in the area of antenna design is legendary. Antenna designers, whether hobbyist or technician, can be assured they need look no further than Antenna Toolkit for the complete guide to understanding the practicalities of using and designing antennas today. A complete solution for antenna design in one package. Includes free CD-ROM with state of the art software for all design calculations. The definitive guide to antenna design for radio amateurs and short-wave listeners.

AudioVox VBP3000 Portable Car Video Cassette Player with Dual 5 LCD Screens & TV Tuner $149.99 The AudioVox VBP3000 represents a unique Video in a Bag system with dual detachable 5 liquid crystal display (LCD) monitors and videocassette player combination. The included heavy-duty canvas bag with handle/shoulder strap lets you take the device with you wherever you go, with comfort and care. Both screens can be detached and held or mounted to the headrest with the included canvas mounting system and you can watch two video sources at once. All mounting straps and power cables are included. Other great features include a built-in TV tuner, remote control, dual headphone jacks, dual audio/video input jacks, and all kinds of controls. There is an AC/DC power adapter for in-home use and a 12 Volt cigarette lighter adapter for in car use. Watch videos, watch TV, connect your camcorder, or even play video games or connect a DVD player using the front audio video input jacks. Play VHS tapes wherever you can drive your car, boat, or RV. It sets up in minutes in the car. Simply hang between the seats using the supplied straps. Even use in your home or office with the included in-home power adapter. Specifications: System NTSC, Screen Size 5 , Remote control Infra red, Dipole Antenna, Tv Channels 2~6 (VHF low) 7~13 (VHF high) 14~69 (UHF) 1~125 (CATV), TV reception sensitivity 20-40dB, Tape speed SP 33.35mm/s Video/Audio, Playback Time 180 minutes with T-180 used in SP mode, FF/REW Time: less than 7 minutes with T-120, S/N 35dB, Power Supply DC 12V, Power Consumption 18 Watts, Operating Temperature 41 F to 140 F or -20 C to 60 C, Dimensions 10.8 W x 13.6 D x 4.9 H. List of Contents: Video In A Bag VCP with 2 (5) inch screens, heavy duty canvas pack, mounting straps, 110V AC adapter, 12V cigarette lighter adapter, remote control, monitor pouches, monitor cables, dipole tv/antenna, carrier strap, users manual, 1 year warranty.Consumer Alert: This television receiver has only an analog broadcast tuner and will require a converter box after February 17, 2009. Click here

Cobra Marine Radio with Rewind-Say-Again – For MarineVHF – Specific Area Message Encoding (SAME)10 Weather / 16/9/Tri Instant – 25 W – Fixed Mount $189.95 Cobra does it again! The Cobra MR F80B has a range of useful features never seen before in a VHF radio. Rewind-Say-Again is a Cobra exclusive feature that uses a digital voice recorder to play back the last 20 seconds of audio. This unit has Class-D DSC functionality and provides improved performance for DSC calling. A rotary channel changing knob is included for easy and fast working channel selection. Two channel Preset Keys, on the front under the LCD, allow you to easily preset your favorite working channel, and the large Dot Matrix Area LCD makes DSC calling simple and improves visibility for everyday use.

Digital 634-TB AM/FM/Cellular/PCS Combo Antenna $230.77 Trifecta 8′ Combination Antenna9dB Gain, Dual Band Cellular and AM/FMWhen space and mounting locations are limited, Digital Antenna’s Trifecta combination antennas work overtime, providing you with multi-purpose performance to meet your communication, navigation or entertainment needs. Choose from a selection of high quality 8 antennas, with VHF, cellular and PCS or AM/FM, cellular and PCS combinations. Trifecta tri-band antennas are designed to work with all cellular systems in North America and are compatible with our PowerMax North American amplifier.Customers and installers love the easy installation connector system on the 500 and 600 GOLD Series antennas. The gold factory-attached mini-UHF female connector requires only a 3/8 hole for cable routing and makes connecting to the radio simple with the provided screw-on adapter.All of our antennas are made in the USA, assembled, tested and tuned by hand for maximum performance, quality and durability.All 8′ Combination Dual Band Cellular and AM/FM Antennas Feature:Two antennas in one rod Powerful brass radiators Soldered connections High gloss urethane finish 316 stainless steel ferrule 9dB gain (cellular and PCS), Unity gain (AM/FM) 500 GOLD Series:Mount: Standard 1 14 threaded base Connector: Gold factory-attached mini-UHF female with double mini-UHF male adapter for cellular cable, and unattached Motorola type plug for AM/FM cable Cable: Includes two 20′ low-loss, tinned braid, foil shielded, UV stable RG-8X marine cables Specifications:Antenna Band: AM/FM/Cellular/PCSCable Length (Feet): 20′Cable Type: RG-8XColor: BlackConstruction: FiberglassDB Gain (dB): 9Ferrule Type: Stainless SteelLength (Inches): 96′

Digital 876-SB 4′ AIS Antenna $118.01 AIS Antennas4′ Length, 4.5dB GainIn conjunction with the USCG Automatic Identification System (AIS) requirements for commercial vessels, Digital Antenna created a series of 4 AIS antennas that meet the exacting AIS frequency requirements. Designed with a low 1.5:1.0 SWR ratio from 159-162 MHz, Digital Antennas 4.5 dB gain AIS antennas offer unsurpassed durability and performance compatible with all AIS transponders.All of our antennas are made in the USA, assembled, tested and tuned by hand for maximum performance, quality and durability.All 4′ AIS Antennas Feature:Powerful brass radiators Soldered connections Power directing ferrite choke bead High gloss urethane finish 316 stainless steel ferrule 4.5dB gain 800 GOLD SeriesMount: Stainless steel double female ferrule for mounting 114 threaded base Connector: Quality female SO-239 (UHF female) Cable: Not included use our VHF/AIS cables and two DA645 connectors Specifications:Antenna Band: AISCable Length (Feet): N/AColor: BlackConstruction: FiberglassDB Gain (dB): 4.5dBFerrule Type: Stainless SteelLength (Inches): 4′

FUSION AM/FM/Weather Band VHF Receiver Sirius iPod Dock Ready $194 50W x 4, 2 Zone Marine StereoThe MS-RA200 is FUSION Electronics latest offering in marine audio entertainment, packed with features and functions that actually enhance the boating experience. Specifically designed to withstand the harsh marine environment – water, wind, salt and sun. The True Marine accredited MS-RA200 Marine Stereo delivers an assurance of quality, functionality and continued performance season after season, even after extended exposure to the marine environment. The MS-RA200 features FUSION’s industry-leading user interface, iPod and iPhone connectivity and integration, USB compatibility, AM/FM tuner, VHF receiver and SIRIUS Satellite ready. With a face plate measuring a minute 6-3 16 x 2-11 16 (157mm x 68mm), the compact yet feature packed MS-RA200 is the perfect solution for the trailer boat, discreet or space conscious installation.Incorporating an intelligent user memory, FUSION’s latest Alpha Search Technology and extended Apple iPod support with fully integrated iPod user interface and dual mono subwoofer output all contained in a 100% aluminium chassis.There are two Marine Docks compatible with the MS-RA200:Marine Portable Media Device Dock (MS-DKIPUSB) – Featuring the World’s First Internal Dock for iPod technology, iPod video playback on a compatible monitor or television, an internal USB port for portable flash drive playback, and a second USB port on the rear of the dock, enabling the connection of a further USB flash drive*.Marine Dock for iPod (MS-DKIP) – Offering the same internal docking technology for your iPod / iPhone and security from the marine elements that you find in the full featured MS-DKIPUSB, the MS-DKIP is perfect for those that do not require USB connectivity or iPod video playback.Features:IPx5 Waterproof faceSuper compact unit 6 W x 2.5 HMini SD Card input from front allows user to store MP3 files directly on SD cardMade for iPodWorks with iPhoneAccredited True Marine Fully

Garmin – VHF 200 Marine Radio – VHF – 10 Weather – 25W $349.49 The Garmin VHF 200 marine receiver provides radio communication and features intuitive design to enhance convenience and safety to mariners worldwide. The VHF 200 comes standard with a two-way hailer system and is also NMEA 0183 and NMEA 2000 compliant to offer greater onboard flexibility and functionality.

Garmin 10M 12-Pin Extension Cable f/ GHS10 $57.28 The Garmin VHF 200 marine receiver provides radio communication and features intuitive design to enhance convenience and safety to mariners worldwide. The VHF 200 comes standard with a two-way hailer system and also is NMEA 0183 and NMEA 2000 compliant to offer greater onboard flexibility and functionality.Communicate with ConfidenceWith up to 25 watts of transmit power at your fingertips, you’l be able to stay in touch anywhere on the water. The VHF 200 comes standard with a removable speaker microphone and a built-in 20-watt public address (hailer) system that can be connected to a hailer horn or external speaker on the deck or tower. The VHF 200 also supports one wired GHS 10 hand-set microphone that allows full radio control from a remote location. So no matter where you are or where you?re heading, you’ll always have a line of communication open to make sure every voyage is a safer voyage.Safety FirstThe Garmin VHF 200 provides full Class D Digital Selective Calling (DSC) capability via NMEA 0183 or NMEA 2000 connectivity. Should trouble arise, DSC provides distress calls with the push of a button. And if your boat already is interfaced with a compatible GPS chartplotter, you’ll get mayday signaling and a digital broadcast of your boat’s position. The VHF 200 also features NOAA weather alerts and Position Tracking, which allows a mariner to locate and keep tabs on up to three other boats in the area.At-A-Glance InformationThe VHF 200 has a simple user interface that’s easy to read while on the go, so you’ll always have the right information at the right time. In addition to dedicated buttons and knobs for easy use, the VHF 200 features three soft keys linked to onscreen menus that allow boaters to see and select the information they want. The VHF 200 also offers premium sound quality so every message is loud and clear. And to make sure the data stands out, the information is available on a 3.2 (8.13 cm) display – the largest screen available in its class

Garmin VHF 300 AIS Marine Radio – VHF – 10 Weather / 16/9 Instant – 25 W $1049.98 The Garmin VHF 300 AIS marine receiver combines radio communication and 1 or 25 watts of transmit power with multi-station support to give you the flexibility and convenience you need to safely navigate and communicate on the open waters. The VHF 300 AIS comes standard with a two-way hailer system and also is NMEA 0183 and NMEA 2000 compliant to offer greater onboard functionality. In addition, the VHF 300 AIS takes advantage of Automatic Identification System technology to help you identify and avoid other large vessels at sea.

HQRP Battery compatible with Yaesu / Vertex VX-210 / VX-210A Two Way Radio Replacement + Coaster $18.91 Products trademarked HQRP? are marketed and sold exclusively by Osprey-Talon. This Ni-MH Replacement battery is compatible with following models: Yaesu / Vertex VX-210, VX-210A VHF / UHF Portable Radios.

HQRP Ni-MH Battery compatible with Icom IC-A22 / IC-A22E Two Way Radio Replacement + Coaster $23.91 Products trademarked HQRP? are marketed and sold exclusively by Osprey-Talon. This Ni-MH battery is compatible with following models: Icom IC-A22, Icom IC-A22E VHF Transceivers.

HQRP Ni-MH Battery compatible with Icom IC-A3 / IC-A3E Two Way Radio Replacement + Coaster $23.91 Products trademarked HQRP? are marketed and sold exclusively by Osprey-Talon. This Ni-MH battery is compatible with following models: Icom IC-A3, Icom IC-A3E VHF Transceivers.

HQRP Ni-MH Battery compatible with Yaesu / Vertex VX-110 / VX-120 / VX-127 Two Way Radio + Coaster $18.91 Products trademarked HQRP? are marketed and sold exclusively by Osprey-Talon. This Ni-MH Replacement battery is compatible with following models: Yaesu / Vertex VX-110, VX-120, VX-127 VHF / UHF Handheld Transceivers.

HQRP Ni-MH Battery compatible with Yaesu / Vertex VX-170 / VX-177 Two Way Radio Replacement +Coaster $18.91 Products trademarked HQRP? are marketed and sold exclusively by Osprey-Talon. This Ni-MH Replacement battery is compatible with following models: Yaesu / Vertex VX-170, VX-177 VHF / UHF Handhelds.

HQRP Ni-MH Battery compatible with Yaesu / Vertex VX-180 / VX-180U / VX-180V Two Way Radio + Coaster $18.91 Products trademarked HQRP? are marketed and sold exclusively by Osprey-Talon. This Ni-MH Replacement battery is compatible with following models: Yaesu / Vertex VX-180, VX-180U, VX-180V VHF / UHF Portable Radios.

HQRP Ni-MH Battery compatible with Yaesu / Vertex VX-210AU / VX-210AV Two Way Radio + Coaster $18.91 Products trademarked HQRP? are marketed and sold exclusively by Osprey-Talon. This Ni-MH Replacement battery is compatible with following models: Yaesu / Vertex VX-210AU, VX-210AV VHF / UHF Portable Radios.

HQRP Ni-MH Battery compatible with Yaesu / Vertex VX-800 / VX-800U / VX-800V Two Way Radio + Coaster $18.91 Products trademarked HQRP? are marketed and sold exclusively by Osprey-Talon. This Ni-MH Replacement battery is compatible with following models: Yaesu / Vertex VX-800, VX-800U, VX-800V VHF / UHF Portable Radios.

Hamilton Electronics LCP-HA802-904 4 Station Wireless Cassette Listening Center $249.95 The Hamilton 4 Person Wireless Cassette Listening Center provides everything you need in a cassette listening center with the added benefit of wireless headphones. This Listening Center Includes: (1) HA-802 Classroom Cassette Player Versatility performance reliability and value are what you get from the Hamilton Electronics HA-802 Cassette Player and Recorder. An automatic recording level function ensures a steady sound level without the need to adjust volume and a built-in condenser microphone faithfully captures every word and sound. Separate jacks for remote control and external microphone. Two 1/4 headphone jacks and one full watt of power make the HA-802 our post economical listening center. Uses 4 c batteries (not included) or attached 5 120-volt AC cord (with cord storage compartment). UL and CSA listed. One (1) year warranty. Product Features: 2 1/4 headphone jacks. Auto shut-off and high quality speaker. AC/DC operation. 4- C cell batteries are not included. UL and CSA listed. One (1) year warranty. (1) W900-Multi Wireless Transmitter Transmits high quality audio via VHF to W901 series headphones W2040 Receivers and W2020 Speakers within a 300 foot range. Connects to any analog audio source through a 1/8 stereo mini plug. Switchable between 4 frequencies (Blue – 72.500 MHz Yellow – 72.100 MHz Green – 72.900 MHz Orange – 74.700 MHz) (4) W901-Multi – Multi Channeled Wireless Headphone Multi-channeled headphone. Get 50 hours of listening time between charges with only an 8 hour charge time. Superb sound quality without wires or interference. Powered by classroom friendly internal NiMH battery with 40 hours of operating time between 8-hour charges. Switchable

Hardware Express 886107 16 Channel Uhf 2-Way Radio-4 Watt $332.38 UHF 4-Watt 16-Channel 2-Way Radio is perfect for professional communication. Two-way radios great for construction, special events, and more. Radio with 4 watts of power. Up to 100-mile range. VHF offers 16 VHF frequencies (150-174MHz) and the UHF offers 16 UHF frequencies (450-470MHz). Both include Private Line and Digital Private codes programmed into each channel to eliminate interference. No monthly fees or service contracts required. 1100 mAh NiMH battery. Drop-in desktop charger with wall adapter. Spring action belt clip. Antenna. Carry strap. Range up to 30 floors or 350,000 square feet. 121-interference eliminator code. Priority Scan Feature. Aluminum rugged chassis. Two-pin accessory plug compatible with Motorola series. Site license potentially required. Materials: Plastic, Metal. Dimensions: 10 H x 1.2 W x 2 L.

Hisonic HS120B Portable PA System with Wireless Microphones – Black $139.99 The Hisonic HS120B seamlessly combines a powerful 40 watts speaker with a VHF wireless microphone system into one portable PA system. The speaker is built-in with a long-life high-capacity rechargeable battery, ideal for outdoor activities where there’s no access to a wall outlet. When the battery level is low, simply plug into a wall outlet with included power cord to charge it up again. The speaker can also be powered by the power cord and a 12V/DC adapter (included). The system comes with one handheld transmitter/microphone and one body-pack transmitter, which can be used with either a headset microphone or a lapel microphone. So you have the convenience of choosing one out of the three microphones to use at a time depending on your application. In addition, the system has additional microphone input jack if more microphones are needed. An audio input jack is available so you can play the music using the speaker by plugging in your CD player, cassette player or an MP3 player including ipod. With its versatility and portability, this system has been widely used among the professions such as teachers, auctioneers, studio instructors and etc. The package includes the speaker, one handheld microphone, one body-pack transmitter, one headset microphone, one lavalier microphone, power cord, two 9V batteries, 12VDC adapter (cigarette lighter adapter) and a carrying bag.

How We Survived In Uhf Television $37.63 This personal narrative is co-authored by two of the best-known names in American television broadcast management: William Lowell Bill Putnam and Kathryn Elizabeth Kitty Putnam. During the first two decades of Ultra-High Frequency (UHF) television, when the established VHF (Very-High Frequency) stations dominated the TV marketplace, the Putnams built and operated three successful UHF outlets: WWLP-TV in Springfield, Massachusetts; WKEF-TV in Dayton, Ohio; and KSTU-TV in Salt Lake City, Utah.

Icom Icom M604 Grey Vhf Radio 30w Hailer Rx Repeat Fog Horn – M604a 42 $560.87 High performance full function with one or two optional COMMAND MICVHF MARINE TRANSCEIVERIC-M604A 42This version will be compatible with the MA500TR AIS TransponderSuperior

Icom M604A VHF Radio Hailer RX Repeat Fog Horn – 30W – Black $573.86 High performance full function with one or two optional COMMAND MICVHF MARINE TRANSCEIVERIC-M604A 41This version will be compatible with the MA500TR AIS TransponderSuperior

Icom Mxa-5000 Ais W/ Real-Time Vessel Traffic Information $367.68 Advanced Collision Avoidance w/ Real-Time Vessel Traffic Information – Dual channel receive capability – The MXA-5000 receives both Ch. 87B (161.975MHz) and Ch. 88B (162.025MHz) simultaneously. This dual channel receive makes the MXA-5000 more flexible for obtaining AIS information from AIS transponders that operate on only one channel. In addition, the MXA-5000 also receives both Class A and Class B AIS data. – Dual mode data output – The MXA-5000 has two data output. One is RS-422 for connection with equipment such as marine radar or GPS chart plotter. Those equipments which accept the VDM sentence format will show the AIS data on the display. The second is RS-232C for PC connection. When using with AIS plotter software*, the MXA-5000 allows you to monitor other vessel traffic on your PC. – *Not supplied from Icom. – Built-in antenna splitter to share one antenna – The MXA-5000 can be installed between a VHF antenna and a VHF radio. While receiving a VHF radio signal*, the MXA-5000 receives AIS data. When you transmit from the connected VHF radio, the Tx signal bypasses the MXA-5000 to protect the internal circuit. – *Insertion loss : 3.5dB (approx.) – GPS data multiplex – When connected a GPS receiver to the MXA-5000, GPS position information such as RMC, GGA, GNS and GLL formats can be multiplexed with AIS data (VDM format) and simplifies wiring. – Compact size and light weight body – The MXA-5000 is only 132(W)X34(H)X155(D)* mm and weighs only 400g* for easy and flexible installation. – *Mounting bracket is not included. – What is AIS? – Icom’s MXA-5000 AIS (Automatic Identification System) receiver will pick up real- time transmissions from vessels that use an AIS transporter. Such transponders are now required for SOLAS vessels by SOLAS regulations. – The AIS transponder sends accurate navigation information such as: – Static information – vessel call sign, name MMSI number, dimensions and type – Voyage-related information – draft, cargo type, destinatio

Laird Low Band 49 x .100 Chrome Tapered Replacement Rod Whip $7.9 New Laird Low Band Replacement Whip Replacement whips for low band two-way mobile antennas. 49 x .100 tapered rod for C series low band and B series VHF 1/4 wave antennas.

Motorola RDV2020 Two Way Radio2 VHF – 5 Mile – 2W $229.13 RDV2020 Two Way Radio features 27 built-in frequencies, with 83 digital and 38 analog private line codes, three call tones, and designed to Mil-Spec 810 IP54 specifications. Offers range of up to 250,000 square feet or up to 20 floors in steel/concrete buildings, or up to 5 miles outdoors in flat unobstructed areas.

Motorola RDV2080D Two Way Radio8 VHF – 5 Mile – 2W $265 RDV2080D Two Way Radio VHF 8-channel, two-way radio offers a range of 250,000 square foot or up 20 floors, or up to 5 miles outdoors in flat unobstructed areas. Features two-watt VHF transmit power, and six channels with 27 built-in user changeable VHF frequencies with 83 digital (DPL) and 38 analog private line codes. Designed to Mil-Spec 810 IP54 specifications. Two-way radio offers liquid crystal display (LCD) with battery meter, signal strength indicator, call alert button with three tones, audio accessory jack, voice scramble and selectable channel scan. Li-ion battery gives up to 12 hours of life per full charge.

Motorola RDV5100 RDX Series On-Site VHF 5 Watt 10 Channel Two Way Business Radio $325 The Motorola(r) RDV5100 RDX Series on-site VHF business radio offers dependable communication performance at your work site with 10 channels and 5-watt power. It includes 5 programmable buttons, a channel scan with a selectable scan list, 3 sensitivity levels, and 3 voice-inversion scramble settings to minimize eavesdropping. Its crafted with a durable metal diecast chassis to help it hold up under demanding conditions.

Motorola XV 2600 XTN Business Two Way Radio $216.31 The Motorola(r) XV 2600 XTN business 2-way radio is designed for heavy-duty, everyday industrial use. It operates on 27 VHF business-exclusive frequencies to help you keep operations on schedule, maximize job shift productivity, enhanced security, and increase overall customer satisfaction. It offers you a range of up to 6 miles outdoors and about 250,000 sq-ft or 20 floors indoors.

NAXA NAM984 Professional Dynamic Wireless Microphone System DJ Music Voice Studio Karaoke 1/4 Cabl $14.99 NAM-984 is a Professional Dual Wireless Microphone Kit. Wireless receiver for enhanced mobility; Two professional microphones. Great for Karaoke parties. Dazzle your friends and have loads of fun singing your favorite tunes on this wireless Karaoke system! Excellent Home Use System With 2 Handheld Microphones. Technical Details:. Dual microphone wireless system. Deluxe 2 channel receiver with a built in AC power supply. Frequency Range: VHF/FM 110-270Mhz. Frequency Response: 80 – 1200Hz (+/- 3 dB). Mobile Range: 80 db. S/N Ratio: >80 db. Working Temperature: 0 C to 45 C. Working Range: 30 Meters/90 feet. Radio Sender:. Modulation: FM. Frequency output power: 8 MW (Maximum 50 MW). Deviation Range: 30 Khz. Battery Type: 9V. Battery Time: 10 to 30 hours. Radio Receiver:. Receiving Type: FM. Audio Out Frequency Power: 25mV. Output Resistance: 600 Ohms.

NEW BAOFENG UV-5R VHF/ UHF DUAL-BAND TWO WAY RADIO $74.99 test

Platinum Digital Audio Travel Partner Package $4910 AMV1005: 250 Watt amp, UHF internal wireless receiver, built-in CD , wired wireless mic, internal rechargeable batteries.Luggage a handle wheels. Includes 2nd Built-in UHF Receiver with your choice of wireless mic, S1297-70 VHF Wireless Powered Companion Speaker Transmitter, 2 Tripods, 2 Protective Covers, and Floor Microphone Stand. Ships in 7 Cartons. Features: -250 watts amp. -UHF internal wireless receiver. -Built-in CD. -Wired and wireless mic. -Internal rechargeable batteries. -Luggage handle and wheels. -Includes 2nd built-in UHF Receiver with your choice of wireless mic. -VHF wireless powered companion speaker transmitter. -Two tripods. -Two protective covers. -Floor microphone stand. -6 Year Warranty. Specifications

Premium Digital Audio Travel Partner Package $2999.99 AMV1004: 250 Watt amp, UHF internal wireless receiver, built-in CD , wired wireless mic, internal rechargeable batteries.Luggage a handle Wheels. Includes S1297-70 VHF Wireless Powered Companion Speaker Transmitter, 2 Tripods, 2 Protective Covers, and Floor Microphone Stand. Ships in 7 Cartons. Features: -250 watt amp. -VHF internal wireless receiver. -Built-in CD. -Wire and wireless mic. -Internal rechargeable batteries. -Luggage handle and wheels. -Includes VHF wireless powered companion speaker transmitter. -Two tripods. -Two protective covers. -Floor microphone stand. -6 Year Warranty. Specifications

Pyle PDWM2000 Dual Wireless Microphone System – 160MHz to 250MHz System Frequency $56.4 - Professional VHF Wireless System – Two Microphones Included – Power On/Standby/Off Switch – Red/Green LED to Identify Mics – Dual Telescoping Receiver Antennas – Dual AF Level Meters – Channel Signal Indicators – Dual Volume Controls – 1/4” Individual and Mixed Outputs – Operation range: Up To 90 ft. – Operating Frequency Range: 160-250 MHz – 110V/220V selectable – Batteries and 1/4” Output Cables Included – Dimensions: 16.5 (W) x 2 (H)x 8.10 (Depth)

Pyle PDWM2500 Dual Wireless Microphone System – 160MHz to 270MHz System Frequency $57.99 Mute switchPower & low battery LED indicatorsDual RF indicators, AF level meters & volume controls.25 individual & mixed outputIncludes 2 microphones, two 9V batteries & .25 audio cableFreq range: VHF 160 MHz?270 MHzOperation range: up to 240 ft

RDX Series Business Two-Way Radios – uhf 4-watt 10-channel $360 OKY1127: This item features: -Advanced voice activation (VOX). -CPS Software availble for easy programming. -Easy Cloning (with cloning cable or MUC sold seperatly). -Enhanced audio quality, 810 C,D, E, and F and IP54/55 Military Standards. -Scan, scramble. -Batt. Type: Lithium Ion. -Code Format: 122(39 Analog, 83 Digital). Model Code #160; #160;Model Description AAIndoor Range:13 floors, Up to 220,000 sq. ft., No. of Channels:2.000, Run Time:12.00 h, Frequencies:27 VHF Business Exclusive, Watts:2.00 W ABIndoor Range:13 floors, Up to 220,000 sq. ft., No. of Channels:8.000, Run Time:12.00 h, Frequencies:27 VHF Business Exclusive, Watts:2.00 W ACIndoor Range:18 floors, Up to 300,000 sq. ft., No. of Channels:10.000, Run Time:18.50 h, Frequencies:27 VHF Business Exclusive, Watts:5.00 W ADIndoor Range:20 Floors, Up to 250,000 sq. ft., No. of Channels:2.000, Run Time:12.00 h, Frequencies:89 UHF Business Exclusive, Watts:2.00 W AEIndoor Range:20 Floors, Up to 250,000 sq. ft., No. of Channels:8.000, Run Time:12.00 h, Frequencies:89 UHF Business Exclusive, Watts:2.00 W AFIndoor Range:30 Floors, Up to 350,000 sq. ft., No. of Channels:10.000, Run Time:18.50 h, Frequencies:89 UHF Business Exclusive, Watts:4.00 W AGIndoor Range:30 Floors, Up to 350,000 sq. ft., No. of Channels:16.000, Run Time:18.50 h, Frequencies:89 UHF Business Exclusive, Watts:4.00 W

Samson Audio XP40iW Portable Wireless PA System with iPod Dock – Channel 6 $299 Samson makes public address simple with an all-in-one portable sound system that offers everything you need to deliver a professional and memorable presentation: The Expedition 40iw. To ensure pristine, full-range sound, the Expedition 40iw (XP40iw) employs a 6-inch woofer and a 1-inch high frequency driver. The unit features a 40 watt Class D amplifier that is perfectly matched to the driver for high efficiency and low current draw. It provides a built-in VHF wireless microphone system that’s ideal for any number of vocal applications. An internal iPod dock with level control also gives you the option of incorporating songs or other MP3s into your performance. Plus, with bass and treble control you can tweak your sound to appropriately match your specific setting and audience. A rechargeable battery provides the XP40iw with absolute mobility. In addition, a 1/4-inch link in/out jack allows for linking two systems together to create a stereo setup. Lastly, as this stand-mountable PA is also extremely lightweight, it enhances the portability of the system. The XP40iw even has a convenient integral top handle for easier transport. High-quality components, professional features and convenient portability make Samson’s XP40iw a consummate single system solution to a wide range of public address applications, including tour groups, classrooms, conference/meeting rooms, health clubs, outdoor events and even small auditoriums. In the Boardroom With the XP40iw, your voice will command the boardroom podium with as much authority as the main stage. The XP40iw provides the perfect solution for a business professional leading any sort of presentation. No matter the application, from PowerPoint presentations to company meetings and corporate events, you can convey your ideas in a clear, concise manner and perform your job better. You can even use the XP40iw’s integrated iPod dock to playback audio clips in promoting a more interactive listening experience for any audience. I

Scanstrut Powertower Gps/Vhf Bar (Port Side Mount) $125.84 Mounts light, GPS, VHF and Navtex antennas above the radar, clear of all obstructions for maximum performance and visibility.FeaturesSC112 Port mounted GPS / VHF / Navtex bar Fits all PowerTower models and all SC100 Poles and SC2 poles Suitable for all 12 , 18 and 24 radomes All mounting holes pre-drilled for easy retrofit installation All cables run internally GPS / VHF / Navtex bars are available in both port and starboard mounted options allowing up to two additional antennas to be mounted above the main radar Port mounted light bar fits all Perko series 200 and Aqua signal series 25 & 40 all round white lights GPS / VHF / Navtex bar fits standard 14TPI 1 GPS mounts

Shakespeare 399-1 9.5′ VHF Antenna $139.58 Style 399-1 VHF 6dBCollinear Phased 5/8-wave with two coaxial chokes to suppress cable radiationA professional quality antenna in a compact package. This extra-duty antenna combines strength and performance for use where you really need the efficiency of a large antenna, but don’t have room for one.Brass and copper elements Chrome-plated brass ferrule with standard 1 -14 thread Includes 15′ RG-58 cable and a PL-259 connector Suggested mount: Style 410-R Mounting Kit for deck or side mounting Two sections: Base 75 ; Tip 39 UPS shippableTechnical Specifications:Frequency:VHF Marine bandBandwidth:(within 2.0:1 SWR): 5MHzSWR:1.5:1 at 156.8 MHzImpedance:(ohms): 50Gain:6 dBMax Input (Watts):100DC Ground:YESTermination:15′ RG-58 cableHeight (feet):9.5Polarization:VerticalRadiation pattern:Omni-directionalSpecifications:Antenna Band: VHFCable Length (Feet): 15′Cable Type: RG-58Color: WhiteConstruction: FiberglassDB Gain (dB): 6 dBFerrule Type: Chrome PlatedLength (Inches): 9’6′

Shakespeare 4018-M 19′ VHF Antenna $350.87 THIS PRODUCT MUST SHIP TRUCK FREIGHT AND DOES NOT QUALIFY FOR ANY SHIPPING PROMOTIONSShakespeare Style 4018-M VHF Marine19′ LENGTH, 9dBPHASED 1/2-WAVE ELEMENTS IN A COLLINEAR ARRAY WITH A COAXIAL CHOKING SLEEVE TO SUPPRESS CABLE RADIATIONSame as Style 4018 with a special sleeve for mast mounting. Used primarily for land-based stations and on commercial vessels.The top choice for charter boat captains and experienced sport fishing enthusiasts. This long-distance VHF antenna is rigid enough to stay erect in rough seas, yet exceptionally lightweight.Brass and copper elementsChrome-plated brass mid section ferrules and aluminum sleeve bottom ferruleSO-239 connector at base Suggested mount: Mast mount using supplied 1 U-bolts. The 4018-M can be strapped to a larger mast if steel banding (not supplied) is used.Two sections: Base 162 ; Tip 66&quot:Shakespeare Limited Warranty: 2 yearsTechnical Specifications:Frequency:VHF Marine bandBandwidth:(within 2.0:1 VSWR) 3 MHzSWR:1.5:1 at 156.8 MHzImpedance:(ohms): 50Gain:9 dBMax Input (Watts):25DC Ground:NOTermination:SO-239Height (feet):19Polarization:VerticalRadiation pattern:Omni-directionalSpecifications:Antenna Band: VHFCable Length (Feet): 20′Cable Type: RG-58Color: WhiteConstruction: FiberglassDB Gain (dB): 9 dBFerrule Type: Chrome PlatedLength (Inches): 19′

Shakespeare Style VHF Marine Band Antenna – 6 dB – 1 x PL-259 $177.65 The Style 399-1M is a collinear-phased 5/8-wave VHF marine antenna of 9’6 (2.9 m) overall length. The two-section antenna is engineered with a special sleeve for mast mounting.

Shakespeare Vhf 17.5Ft 5018 9Db 2-Piece Ups/Dhl Shippable $283.53 Shakespeare Galaxy Style 501817’6 VHF 9dB GainPhased 1/2 wave elements in a collinear array with choking sleeve to suppress cable radiationThis highly sophisticated design is outstanding for long distance communications. Extra rugged for salt water durability, and stability in high seas. Surprisingly light weight.Brass and copper elements for maximum range and efficiencyStainless steel ferrule with standard 1 -14 thread20′ RG-8/X low-loss cable plus a PL-259 connectorSuggested Mount: Shakespeare Style 409-R or 410-R Mounting Kit (pictured mount not included)Two sections: Base 105 , Tip 105 – UPS shippableTechnical Specifications:Frequency:VHF Marine bandBandwidth:(within 2.0:1 VSWR) 3 MHzSWR:1.5:1 at 156.8 MHzMax Input (Watts):150DC Ground:NOHeight (feet):17.5Polarization:VerticalSpecifications:Antenna Band: VHFCable Length (Feet): 20′Cable Type: RG-8XColor: WhiteConstruction: FiberglassDB Gain (dB): 9 dBFerrule Type: Stainless SteelLength (Inches): 17’6′

Shakespeare Vhf 9.5Ft 5399 6Db 2 Piece $183.1 Shakespeare Galaxy Style 53999’6 VHF 6dB GainCollinear-phased 5/8 wave with two coaxial chokes to suppress cable radiationEXTRA TOUGH!This professional quality antenna is a performance powerhouse. Its extra strong sturdy enough to be self-supporting, even in high winds and high speeds. Mounting on radar arch or T-top not recommended.Brass and copper elements for maximum range and efficiencyStainless steel ferrule with standard 1 -14 thread20′ RG-8/X low-loss cable plus a PL-259 connectorSuggested mount: Use only Shakespeares extra heavy-duty Style 4187-HD Rachet Mount for self-supporting applications, or use a Style 452 mounting kit if an upper support bracket installation is preferredTwo sections: Base 75 , Tip 39 – UPS shippableShakespeare Limited Warranty: 5 yearsTechnical Specifications:Frequency:VHF Marine BandBandwidth:3 MHz within 2.0:1 VSWRSWR:nominally 1.5:1 at 156.8 MHzGain:6 dBMax Input (Watts):100 wattsDC Ground:YESHeight (feet):9’6 Polarization:VerticalSpecifications:Antenna Band: VHFCable Length (Feet): 20′Cable Type: RG-8XColor: WhiteConstruction: FiberglassDB Gain (dB): 6 dBFerrule Type: Stainless SteelLength (Inches): 9’6′

Standard Horizon CP590 Standard Horizon CP590 12 .in GPS Chartplotter with Coastal Charts $1554.25 CP590 – WAAS GPS Chart Plotter External Antenna with built-in C-Map Cartography Find every destination in style with the CP590 WAAS enabled GPS Chart Plotter. Preloaded with detailed maps for coastal navigation of USA including Alaska Hawaii and Great Lakes Canada Bahamas Caribbean Cuba Mexico Puerto Rico and Central America. Providing up to 10-foot accuracy the CP590 is designed to navigate you quickly and accurately to your destination. The CP590 boasts a crisp high-definition 12-inch 800×600 (SVGA) sunlight viewable TFT display. The 5 user programmable hot keys allow quick and easy access to a number of preprogrammed navigation displays. Connect your CP590 to two video sources and watch your favorite DVD play your favorite video game or monitor your engine room in full screen or Picture in Picture. In addition the CP590 has one VGA Video output that connects to an external TV or Monitor allowing your passengers to view the vessels progress to a favorite destination. The CP590 is supplied with both a mounting bracket and flush mount hardware. NMEA connections are available to compatible Standard Horizon VHF for DSC distress and position polling functions. To find fish wrecks and record water temperature simply connect the optional FF525 50/200 kHz black box fish finder and transducer. Dedicated MARK ROUTE and INFO keys allow for fumble free operation. In addition the CP590 displays and tracks AIS (Automatic Identification System) targets when connected to an optional AIS Receiver. The CP590 is backed by an industry leading 3-year waterproof warranty. Features:. Preloaded with detailed maps for coastal navigation of USA including Alaska Hawaii and Great Lakes Canada Bahamas Caribbean Cuba Mexico Puerto Rico and Central American.. 12 full VGA 800×600 high resolution display. Supplied with external 50 channel WAAS GPS antenna . C-MAP NT+ and C-MAP MAX compatible. Radar / Fish Finder and AIS capable. Able

Streetwise Security Products DCBD Deluxe Camera And Bug Detector $60.03 The light weight and easy to use DCBD will detect all types of cameras-wireless and wired-and audio bugs. The DCBD will detect RF signals that fall within 1 MHz-6.5 GHz range which include GSM and WIFI and Bluetooth and FM and VHF and UHF and 900/ 1200/ 2400 wireless audio and video transmission frequency. Four signal strength LED status indicators will let you know as you get closer to the source. The unit also comes with an adjustable sensitivity knob and allows you two alert modes (audible and vibrate). You can also use the included headphones to detect RF signals without any sound from the unit in the buzzer mode. The adjustable lens detector mode allows you to locate pin hole cameras with 6 flashing LED (with different flashing frequencies). The built in 500 mA rechargeable LIION battery will allow you to operate the unit up to 6 hours for lens detecting and up to 15 hours for RF detection. The unit measures 2 and five-eight inches x 2 inches x one-half inch. For just a RF detector see item RFCBD.

TECHNICAL PRO HW-B1000 DIGITAL AMPLIFIER with AM FM TUNER $199.99 Model Number :HW-B1000 The first thing you notice about this Technical Pro HW-B1000 digital hybrid receiver is the 1000 watts of power. But that s just the beginning….it also has an AM/FM tuner, the latest digital technology for state-of-the-art efficiency, preamp, separate gain control for preamp and subwoofer, digital fluorescent display and a high thermal capacity. Also features iPod/ MP3 output with cable, two RCA inputs, two RCA subwoofer outputs and an RCA preamp output. Features: 1000 watts peak power 450 watts @ 2 ohms 360 watts @ 4 ohms 200 watts @ 8 ohms Inputs: RCA (2 audio sources) .0 Outputs: Banana binding post (4 speakers) 1 RCA dedicated for record line output 2 Mono RCA dedicated for subwoofer output 1 RCA dedicated for pre-amplifier output Separate gain control for both the pre-amplifier and subwoofer Dual VHF High Band Wireless Microphones Digital fluorescent output display meter iPod / MP3 input with cable Dimensions: 17 w (19 w/ brackets) x 3 h x 13 d 110-220V Switchable