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Last modified 2022-09-24

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Yaesu FT-747GX

A picture of Yaesu FT-747GX

SPECIFICATIONS

GENERAL
Type:Amateur HF transceiver
Frequency range: TX: 10-160 m + WARC
RX: 0.1-30 MHz
Tuning steps:25 Hz, 1 / 2.5 / 5 / 10 / 12.5 KHz
Frequency stability:? ppm
Mode:AM / SSB / CW (FM option)
Channels / memory management: 20 regular
Priority function
RAM storage with lithium battery backup
Repeater shift / offset:No dedicated. Use VFO A/B split instead
Power supply:13.8 VDC 10% (4-pin Jones connector)
Current drain / power consumption:RX: ? mA
TX: Max 19 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):238*93*238 mm (9.37*3.66*9.37")
Weight:3.3 Kg (7.28 lb)
Other features:NB. CAT control. Attenuator (20 dB).




RECEIVER SECTION
Receiver system: Double conversion superheterodyne (AM/SSB/CW)
1st IF: 47.055 MHz
2nd IF: 8.215 MHz
Triple conversion superheterodyne (FM), optional
1st IF: 47.055 MHz
2nd IF: 8.215 MHz
3rd IF: 455 KHz
Sensitivity: AM (10 dB S+N/N)
0.5-1.5 MHz: 2 uV
1.5-30 MHz: 1 uV
FM (12 dB SINAD), optional
28-30 MHz: 0.7 uV
SSB/CW (10 dB S+N/N)
0.5-1.5 MHz: 0.5 uV
1.5-30 MHz: 0.25 uV
Selectivity: AM wide
6 KHz (-6 dB)
14 KHz (-60 dB)
AM narrow
2.2 KHz (-6 dB)
5 KHz (-60 dB)
FM (Optional)
8 KHz (-6 dB)
19 KHz (-50 dB)
SSB/CW wide
2.2 KHz (-6 dB)
5 KHz (-60 dB)
CW narrow
500 Hz (-6 dB)
1.8 KHz (-60 dB)
Image rejection:70 dB (Above 1.5 MHz)
AF output power / speaker:1.5 W at 10% distortion / 8 ohm
External speaker connector:3.5 mm




TRANSMITTER SECTION
RF output power:

Max pwr
AM:25 W
FM:100 W
SSB (PEP):100 W
CW:100 W
Modulation system:AM: Early stage (Low level)
FM: Variable reactance
SSB: Active balanced
Max FM deviation (Factory set):2.5 KHz
Spurious emissions:Better than -50 dB
Microphone impedance / connector:500-600 ohm / 8-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1987-198x (Discontinued)
Additional info:New price 1988 in Sweden: SEK 8875:-
Related documents:User manual (6.6 MB)
Modifications and fixes:
Reviews:
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FM-747
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FRB-757
MD-1B8
MH-1B8
MMB-38
MMB-42A
RMK-747
SP-55
SP-767
SP-767P
TCXO-747
Remote antenna selector
Automatic antennna tuner
CAT interface for Apple II
CAT interface for RS-232C
HF linear amplifier
FM option
Standard power supply
Heavy duty power supply
Relay box
Desktop microphone
Standard microphone
Mobile mounting bracket
Metal case for FT-747/80C
Remote kit for FT-747GX/SX
Mobile speaker
External speaker
External speaker with phone patch
High stability option
A rear picture of Yaesu FT-747GX