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Last modified 2022-09-14

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Yaesu FT-7900R

A picture of Yaesu FT-7900R

SPECIFICATIONS

GENERAL
Type:Amateur VHF/UHF transceiver
Frequency range: USA
TX: 144-148 / 430-450 MHz
RX: 108-520 / 700-999.990 MHz (Cellular blocked)
Tuning steps:5 / 10 / 12.5 / 15 / 20 / 25 / 50 / 100 KHz
Frequency stability:5 ppm @ -10 to +60C (14 to 140F)
Mode:TX: FM / NFM
RX: AM / FM / NFM
Channels / memory management: 1000 regular in 20 banks
5 home
50 scan edge pairs (PMS)
5 hyper
10 NOAA weather broadcast
Non-volatile EEPROM storage
Repeater shift / offset:0-99.95 MHz in 50 KHz steps
Power supply:13.8 VDC
Current drain / power consumption:RX: 500 mA (Squelched)
TX: Max 9 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):140*42*168 mm (5.51*1.65*6.61")
Weight:1 Kg (2.2 lb)
Other features: CTCSS/PL and DCS. WIRES-II internet. Dimmer. Detachable front panel.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 45.05 MHz
2nd IF: 450 KHz
Sensitivity: AM (10 dB S/N)
108-137 MHz: 0.8 uV
300-336 MHz: 0.8 uV
FM (12 dB SINAD)
137-150 MHz: 0.2 uV
150-174 MHz: 0.25 uV
174-222 MHz: 0.3 uV
222-300 MHz: 0.25 uV
336-420 MHz: 0.25 uV
420-520 MHz: 0.2 uV
800-900 MHz: 0.4 uV
900-999.99 MHz: 0.8 uV
Selectivity:12 KHz (-6 dB)
30 KHz (-60 dB)
Image rejection:
AF output power / speaker:2 W at 10% distortion / 8 ohm
External speaker connector:3.5 mm, 4-16 ohm




TRANSMITTER SECTION
RF output power:

HighLow 3Low 2Low 1
2 m:50 W20 W10 W5 W
70 cm:45 W20 W10 W5 W
Modulation system:Variable reactance
Max FM deviation (Factory set):FM: 5 KHz
NFM: 2.5 KHz
Spurious emissions:Better than -60 dB
Microphone impedance / connector:2 Kohm / 8-pin (Modular)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 2009-201x
Additional info:
Related documents:User manual (2.8 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
CT-39A
FP-1023
FP-1030A
MEK-2
MH-42B6JS
MH-48A6J
MMB-36
MLS-100
YSK-7800
Packet interface cable
AC power supply. 13.8 VDC, 23 A (USA only)
AC power supply. 13.8 VDC, 25 A
Microphone extension kit
Hand microphone
Hand microphone with DTMF
Mobile quick-mount
High-power external speaker
Separation kit