The flagship in Yaesu radio offer in the eighties. Double conversion all-mode communications receiver with 0.15~30 MHz coverage in 1 MHz bands. High sensitivity, three IF bandwidths for AM mode, noise blanker, selectable AGC, two RF attenuators, digital plus analog display of the operating frequency, digital quartz clock that can be programmed to turn the receiver on and off. Optional memory unit. Ideated in Japan, year of introduction 1981.
Reference market : amateur-radio
FRG-7700 specifications
General |
Frequency coverage | |
---|---|
0.1500 ~ 29.9990 MHz [1] | |
Mode | |
CW / LSB / USB / AM / FM |
Receiver |
Sensitivity | |
---|---|
CW / SSB | 3 uV (0.15~0.3 MHz, 500Ω input).
2 uV (0.3~2 MHz, 500Ω input). 0.5 uV (2~30 MHz). |
AM | 30 uV (0.15~0.3 MHz, 500Ω input).
25 uV (0.3~2 MHz, 500Ω input). 5 uV (2~30 MHz). |
FM | 1 uV (2~30 MHz). |
Selectivity | |
CW / SSB | 2.7 kHz (-6dB)
8 kHz (-50dB) |
AM-N (narrow) | 2.7 kHz (-6dB)
8 kHz (-50dB) |
AM-M (medium) | 6 kHz (-6dB)
15 kHz (-50dB) |
AM-W (wide) | 12 kHz (-6dB)
25 kHz (-50dB) |
FM | 15 kHz (-6dB)
30 kHz (-40dB) |
IF filter ultimate attenuation | |
~65dB [2] | |
RF attenuator | |
A (20dB fixed) [3]
B (continuously adjustable) |
|
DR (Dynamic Range) | |
82dB (50 KHz spaced signal) [2] | |
NB (Noise Blanker) | |
Yes | |
AGC (Automatic Gain Control) | |
Fast / Slow | |
Frequency stability | |
±1 kHz max within 30' warm-up.
±300 Hz max after 30' warm-up. |
|
IF (Intermediate Frequency) | |
1° | 48.055 MHz |
2° | 455 kHz |
IF roofing filter | |
20 KHz |
Features |
Memory | |
---|---|
12 regular memories [4] | |
Display | |
1 kHz frequency resolution | |
Antenna | |
SO239 50Ω (2~30 MHz)
Spring terminals 500Ω (0.15~2 MHz) |
|
Power supply | |
100~120 / 220~240 VAC | |
Power consumption | |
10 VA (standby).
33 VA (ON). 39 VA (ON, with memory unit). |
|
Audio power | |
1.5 W on 8Ω | |
Audio output | |
Jack 6.35 mm | |
Connections | |
Jack 3.5 mm (external speaker)
Jack 3.5 mm (REC) 2 x RCA (remote on/off) 5-pin DIN (ACC) Spring terminal (mute) |
Mechanical and environmental data |
Dimensions | |
---|---|
334 (W) x 129 (H) x 225 (D) mm | |
Weight | |
~6kg
~6.5kg (with memory unit) |
- In 1 MHz segments.
- This parameter, not in official data, was obtained with direct tests.
- Rear panel switch.
- With MU-7700 optional unit.
Updated | Complete | UK - NORTHERN IRELAND
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Yaesu FRG-7700 VFO schematic diagram.
Board PB-2172: 3 x 2SC945 transistors / 3 MHz output
FRG-7700 FM unit :
Yaesu FRG-7700 FM unit schematic diagram.
Board PB-2176: TA7061 integrated circuit / 6 x 2SC945 transistors
FRG-7700 photo gallery :
Yaesu FRG-7700 photo
FRG-7700 price
We have collected for your convenience the Yaesu FRG7700 sale price (UK Pounds) and its trend over time. Useful to guarantee a cheaper purchase of this radio and to put it for sale in the second-hand market. Of course offers, accessories, warranty terms and conditions can lead to different figures.
Price | Date | Condition |
GBP 299.00 | 2021-aug |
Second Hand Good condition, comes with AC power lead and owner's manual |
GBP 303.00 (515CAD) |
2021-jun |
Second Hand Numerous nicks scratches and imperfections on case and front panel. Turns on when plugged in and switched on, no other testing was done |
GBP 245.00 (369USD) |
2011-aug |
Second Hand Good condition. With original owner's manual |
FRG-7700 review
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