YAESU VX-7R VHF UHF Transceivers

Description

The radio station Yaesu VX-7R is on sale . The reception works in the aviation range of 0.500-999 megahertz. The radio station is in excellent condition for its age.
Works perfectly checked before selling.
Output power and sensitivity are in accordance with the manufacturer's specifications.
Everything on the photo is for sale.
Good luck with your bidding.
The
Yaesu
VX-7R is a
handheld transceiver
for use on the
amateur radio
bands
. It is a "quad band" transceiver, capable of transmitting and receiving on the 50 MHz (
6 meters
), 220 MHz (
1.25 meters
), 144 MHz (
2 meters
) & 440 MHz (
70 centimeters
) bands. It also features a general-coverage receiver, meaning it can operate as a receiver on many additional bands. 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. It is designed to be shockproof, 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.
Feature overview
[
edit
]
900 Memories
Wideband receiver, 500 kHz - 999 MHz (the US version has
cellular telephone
frequencies blocked)
True user-selectable Dual Receive
Backlit Keypad & LCD
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 × 64 pixel back-lit dot matrix display
Selected specifications
[
edit
]
Receive:
Specified
Actual (U.S. Version)
VFO Availability
0.5 - 1.8 MHz (BC Band)
0.510 - 1.795 MHz
Main
1.8 - 30 MHz (
Shortwave band
)
1.800 - 29.995 MHz
Main
30 - 59 MHz (
6-meter band
Amateur)
30.000 - 58.995 MHz
Main, Sub 50.000-53.995 MHz
59 - 108 MHz (FM/TV-VHF Lo)
59.000 - 107.900 MHz
Main
108 - 137 MHz (
Airband
)
108.000 - 136.975 MHz
Main
137 - 174 MHz (
2-meter band
Amateur)
137.000 - 173.995 MHz
Main and Sub
174 - 222 MHz (TV-VHF Hi)
174.000 - 221.995 MHz
Main
222 - 225 MHz (
1.25-meter band
Amateur)
222.000-224.995 MHz
Main
225 - 420 MHz (ACT1: Action Band 1)
225.000 - 419.995 MHz
Main
420 - 470 MHz (
70-centimeter band
Amateur)
420.000 - 469.995 MHz
Main and Sub
470 - 729 MHz (TV-UHF)
470.000 - 728.995, 758.000-773.995 MHz
Main
800 - 999 MHz (cell-blocked)
803.000 - 823.995, 849.000 - 868.995, 894.000 - 914.995, 944.000 - 959.995, 989.000 - 998.995 MHz
Main
Frequency range transmit:
50 - 54 MHz – 5 Watts FM / 1 Watt AM
144 - 148 MHz – 5 Watts
222 - 225 MHz – 300 mW (US version)
430 - 450 MHz – 5 Watts
Output power on each band (except 222 MHz) can be reduced from 5 watts to 2.5 watts, 1 watt, or 50 milliwatts (on 222 MHz can be reduced from 300 milliwatts to 50 milliwatts). Reducing output power allows the transceiver to be used over shorter communication distances for longer battery life.
Characteristics
[
edit
]
The VX-7R can transmit in
AM
at a 1 watt carrier power on the six meter band. This mode of operation allows the VX-7R to be used to drive a 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.
Modifications
[
edit
]
The VX-7R can be modified to transmit on MARS and CAP frequencies through both hardware and software techniques, however this radio does not meet NTIA standards for either MARS or CAP. 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. Due to the watertight housing of the radio, it was also airtight. This resulted in a pressure differential between the inside of the radio and the atmosphere, caused by changes in barometric pressure or altitude. This pressure differential prevented 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 waterproof 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.[2]
The VX-7R is capable of being programmed with the open source Chirp software.