Yaesu VX-7R

Yaesu VX-7R

The Yaesu VX-7R is a quad band 50 MHz (6 meters), 220 MHz (1.25 meters), 144 MHz (2 meters) & 440 MHz (70 centimeters) handheld amateur radio transceiver with extensive receive coverage, and leading-edge features.The radio's magnesium alloy case is available in black anodized or silver (clear anodized). The model number suffix "B" or "S" denotes which color, black or silver respectively.

The radio is designed to operate in extreme conditions, and is sealed against water and chemicals, making it well-suited for emergency-services duty. Available accessories include remote microphones, earphones, barometric pressure sensor module, and adapters for digital communications modes.

The VX-7R can be programmed directly from the integral keyboard, or using a computer, linked by a cable which connects to the speaker/microphone connector. There are several free and inexpensive programs available with which to modify settings.

The DTMF memories allow strings of DTMF tones to be stored, allowing it to be conveniently used in a "remote-base" system with a radio such as the TS-2000.

Feature overview

* 900 Memories
* Wideband receiver, 500 kHz - 999 MHz (the US version has cellular telephone frequencies blocked)
* CTCSS/DCS tone squelch
* European Tone Burst
* True user-selectable Dual Receive
* ARTS-Automatic In-Range Transponder
* Backlit Keypad & LCD
* Internet Key for Access to WIRES
* DTMF encoder for control of remote systems and telephone dialing
* Sensors for temperature, voltage (internal battery or external power source), real-time clock, and barometric pressure (optional module)
* User-definable icon images for bands, S-Meter glyphs and font characters
* Waterproof (3 foot depth for 30 minutes)
* 132 x 64 pixel back-lit dot matrix display

elected specifications


Frequency Range Transmit:
* 50 - 54 MHz – 5 Watts
* 144 - 148 MHz – 5 Watts
* 222 - 225 MHz – 300 mW (US version)
* 430 - 450 MHz – 5 Watts

Each band (except 222 MHz) can be switched between 5 watts, 1 watt, 300 milliwatts, and 50 milliwatts.Through an undocumented test menu, it is relatively easy to change power output within ~10 milliwatts to 5 Watts for each power level. This is useful because the small battery will last significantly longer at 2.5 Watts than 5 Watts (about 1/2 current drain for a very small reduction in range). Newer Vx-7r models seem to have the power outputs set to 50MW, 1W, 2.5W, 5W instead of the old 5 watts, 1 watt, 300 milliwatts, and 50 milliwatts.


* The VX-7R can transmit a 1 watt AM carrier on the six meter band. While the usefulness of this feature is disputed, it is fun to try. It is recommended to use an external antenna tuned to the lower part of the six meter band for this feature.
* The VX-7R is often used for FM voice communications through low earth orbit amateur radio satellites.
* The VX-7R cannot transmit and simultaneously receive on another band as some other "dual-receive" HTs can, but the dual-receive on any combination of bands functions reasonably well. The "Sub" VFO is limited to frequencies around the 50, 144, and 440 amateur bands, while the "Main" VFO has a much broader frequency coverage.


The VX-7R can be modified to transmit on MARS and CAPS frequencies through both hardware and software techniques. The hardware modification requires the removal of small solder contacts located under the battery pack. The software modification can be made with the VX Commander software through a data interface cable. Both modifications obtain the same result, except that the software modification will be disabled if the radio is hard-reset.

Soon after the release of the VX-7R a design flaw was discovered related to the radio's waterproof housing. Not only was the radio water-tight, but it was also air-tight. This would result in a pressure differential between the inside of the radio and the atmosphere, caused by changes in barometric pressure or altitude. This pressure differential would prevent proper oscillation of the speaker diaphragm, resulting in reduced and muffled audio output. Yaesu remedied the problem by adding a small valve under the bottom left rubber armor, which allows equalization of the interior pressure with the atmosphere. The design change was reflected in all new radios produced from that point on, and any older radios sent in for repair are retrofitted with this modification.

Some VX-7R owners complained of poor microphone sensitivity, which resulted in low audio levels on transmit. A crude modification was developed by end-users to solve the problem, at the expense of sacrificing the radio's water-proof capability. If small holes are pierced in the rubber seal covering the microphone diaphragm, then sound waves can better reach the microphone diaphragm, resulting in better audio sensitivity.


*cite journal |title=Yaesu VX-7R Handheld Tranceiver Product Review |journal=QST |publisher=ARRL |location=Newington, Connecticut |date=October 2002

External links

* [http://www.yaesu.com/ Yaesu's Home Page]
* [http://groups.yahoo.com/group/VX-7R/ VX-7R on Yahoo! Groups]
* [http://www.egr.msu.edu/~volzmich/radio/vx7/ Fixes for low microphone audio and intermittent receive audio]

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Yaesu VX-7R — Das Yaesu VX 7R ist ein Handfunkgerät für den Amateurfunkbetrieb. Dieses Handsprechfunkgerät ist für die 6 m , 2 m und 70 cm Amateurbänder vorgesehen. Das Funkgerät hat einen durchgehenden Empfänger eingebaut und kann so auf Frequenzen von 1 bis… …   Deutsch Wikipedia

  • Yaesu vx-7r — Das Yaesu VX 7R ist ein Amateurfunk Handfunkgerät für drei (50 MHz, 144 MHz und 440 MHz) Bänder mit erweitertem Empfangsbereich. Die maximale Sendeleistung beträgt 5 Watt. Das Gerät ist wasserdicht (IP X7) und kann mit einem barometrischem Sensor …   Deutsch Wikipedia

  • Yaesu — bezeichnet: ein Unternehmen für Funkgeräte: Yaesu (Unternehmen) einen Stadtteil von Chūō (Tokio): Yaesu (Tokio) Diese Seite ist eine Begriffsklärung zur Unterscheidung mehrerer mit demselben Wort bezeich …   Deutsch Wikipedia

  • Yaesu VX-2R — The VX 2R is an ultra compact amateur radio transceiver produced by Yaesu. Its small size and performance are well suited for use in a tiny APRS station or combined with a small computer and TNC a tiny packet station.The VX 2R is known as the VX… …   Wikipedia

  • Yaesu — For the brand of amateur radio equipment: see Yaesu (brand) nihongo|Yaesu|八重洲 is a neighborhood in Chūō, Tokyo, Japan, located north of Ginza, west of Nihonbashi and Kyōbashi, and adjacent to the east side of Tokyo Station. The Yaesu exit, which… …   Wikipedia

  • Yaesu VX-8R — Das VX 8R ist ein Handsprechfunkgerät der japanischen Firma Yaesu. Dieses Handfunkgerät ist seit Mitte 2009 in Deutschland erhältlich, in den USA wurde es schon länger beworben. Es handelt sich um ein robustes und tauchfestes Gerät nach IPX7 Norm …   Deutsch Wikipedia

  • Yaesu FT-60 — The Yaesu FT 60 is a dual band (VHF/UHF) handheld transceiver. Feature overview * Automatic repeater input shift * CTCSS ELF repeater activation squelch * A.R.T.S. automatic range transponder system * 1000 memories with alpha tags. * WIRES II… …   Wikipedia

  • Yaesu VX-6R — The Yaesu VX 6R is a triple band handheld amateur radio transceiver with extensive receive coverage, and leading edge features. The radio is designed to operate in extreme conditions, and is sealed against water and chemicals, making it well… …   Wikipedia

  • Yaesu VX-1R — The VX 1R is an ultra compact amateur radio transceiver produced by Yaesu. Feature overview * FM transmit on 2 Meters and 70 centimeters (1 watt @ 6V EXT DC IN) and (500 mwatt @ 3.6V DC) * Wide band receive coverage, from 500 kHz up to 999 MHz *… …   Wikipedia

  • Yaesu VX-5R — The VX 5R is an ultra compact amateur radio transceiver produced by Yaesu. Feature overview * FM transmit on 6 Meters, 2 Meters and 70 centimeters (5 watt @ 13.8V EXT DC IN), (5 watt @ 7.2V 50 MHz/144 MHz), (4.5 watt @ 7.2V 430 MHz) * Wide band… …   Wikipedia

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.