FT-757GX-II / SX-II
Popular HF transceiver covering 160 to 10 meters amateur bands. Up to 100 Watts power output (10 Watts for the FT-757SX-ii model) with AF speech processor and split-frequency operation. 150 KHz to 30 MHz receiver, effective IF notch filter, IF shift for minimizing near interference, continuously adjustable NB, scan mode. Power, SWR and ALC analog meter. Ideated in Japan, year of introduction 1987.
Reference market : amateur-radio
FT-757GX-II / SX-II specifications
General |
Frequency coverage | |
---|---|
Receive | 0.1500 ~ 29.9999 MHz |
Transmit | 1.5000 ~ 1.9999 MHz
3.5000 ~ 3.9999 MHz 7.0000 ~ 7.4999 MHz 10.0000 ~ 10.4999 MHz 14.0000 ~ 14.4999 MHz 18.0000 ~ 18.4999 MHz 21.0000 ~ 21.4999 MHz 24.5000 ~ 24.9999 MHz 28.0000 ~ 29.9999 MHz |
Mode | |
CW / FSK / LSB / USB / AM / FM | |
Tuning step | |
10 Hz / 1 KHz (CW / SSB)
1 / 10 KHz (AM) 2.5 / 10 KHz (FM) 500 KHz (up/down band step) |
Receiver |
Sensitivity | |
---|---|
CW / SSB | 1.0 uV (0.15~0.25 MHz, 10dB S+N/N)
0.5 uV (0.25~0.5 MHz, 10dB S+N/N) 0.25 uV (0.5~30 MHz, 10dB S+N/N) |
AM | 10 uV (0.15~0.25 MHz, 10dB S+N/N)
4 uV (0.25~0.5 MHz, 10dB S+N/N) 1 uV (0.5~30 MHz, 10dB S+N/N) |
FM | 0.5 uV (0.5~30 MHz, 12dB SINAD) |
Selectivity | |
CW-N | 0.6 KHz (-6dB)
1.3 KHz (-60dB) |
CW-W / FSK / SSB | 2.7 KHz (-6dB)
4.5 KHz (-60dB) |
AM | 6 KHz (-6dB)
18 KHz (-60dB) |
FM | 15 KHz (-6dB)
30 KHz (-60dB) |
RF preamplifier | |
Yes | |
RF attenuator | |
20dB | |
DR (Dynamic Range) | |
> 100dB (14 MHz, CW-N) | |
Image rejection | |
> 70dB | |
IF rejection | |
> 70dB | |
IF-shift | |
Yes | |
Notch filter | |
Manual | 40dB |
NB (Noise Blanker) | |
Yes, width adjustable | |
RIT (Receiver Incremental Tuning) | |
Yes [1] | |
AGC (Automatic Gain Control) | |
Fast, slow | |
Frequency stability | |
± 10ppm with temperature from 0°C to +40°C after 15' warm-up | |
IF (Intermediate Frequency) | |
1° | 47.060 MHz |
2° | 8.215 MHz |
3° | 455 KHz |
CW features | |
Semi / full break-in
Peak audio filter [2] |
Transmitter |
Output power | |
---|---|
CW / SSB / FM | 100 W max PEP/DC (FT-757GX-2) [3]
10 W max PEP/DC (FT-757SX-2) |
AM | 25 W max (FT-757GX-2)
2.5 W max (FT-757SX-2) |
Spurious emission | |
< -50dBc | |
Carrier suppression (SSB) | |
> 40dB | |
Unwanted sideband suppression (SSB) | |
> 50dB (1kHz test tone) | |
Intermodulation products (SSB) | |
< -35dB (14 MHz, 100 W PEP) | |
Maximum deviation (FM) | |
± 5 kHz | |
Audio response | |
350~2900 Hz (-6dB) | |
Microphone | |
500~600Ω | |
CW features | |
Keyer, speed adjustable |
Features |
Memory | |
---|---|
10 regular memories.
1 special clarifier memory. 2 VFO. |
|
Display | |
100 Hz frequency resolution | |
Antenna | |
SO239 50Ω | |
Power supply | |
13.5 VDC (±10%) | |
Power consumption | |
2A RX
19A TX (100 Watts) |
|
Audio power | |
1.5 W on 4Ω | |
Audio output | |
Jack 6.35 mm (headphone) | |
Connections | |
Jack 3.5 mm (external speaker)
Jack 6.35 mm (CW keyer) RCA (AF output, 200mV peak @ 50kΩ) RCA (RF output, 100mV @ 50Ω) RCA (Patch / AFSK input) RCA (+8V / 100mA max / center positive) RCA (+13.5V / 500mA max / center positive) RCA (ALC) RCA (PTT) 6-pin mini-DIN (CAT) 8-pin Molex (band data) 8-pin jack (microphone) |
Mechanical and environmental data |
Dimensions | |
---|---|
238 (W) x 93 (H) x 238 (D) mm without knobs | |
Weight | |
5.25 kg |
- The clarifier function use the Tuning knob and DWN / UP keys to change the receiving frequency through the full range of 0.15-30 MHz.
- The CW-W mode activates an internal AF filter, while the IF filter is the same as for SSB.
- Slightly less on 10-meters band.
The FT-757 transceiver, first introduced in 1983, was upgraded with the FT-757 Mark II version. New features include selectable mode-dependent tuning steps, an improved CAT system for more advanced control by computer, a IF notch filter, while the original 500 KHz to 30 MHz general coverage receiver start now from 150 KHz.
FT-757GX-II / SX-II front end protection :
The receiver front end includes a vacuum arc surge suppressor and a lamp fuse to protect the sensitive receiver circuitry from high voltage pulses (EMF) at the antenna terminal. Several thousands of volts can develop naturally when dry Wind or electrical storms create an electrostatic charge on the antenna elements, and this is delivered to the antenna jack if the antenna is connected to the transceiver. In such a case, the lamp fuse may burn out (even if the transceiver is turned off at the time). The only way to avoid this condition is to disconnect the antenna from the transceiver whenever the weather is likely to create high voltage on the antenna.
If the receiver is found to have suddenly lost sensitivity, inspect the filament of the lamp fuse (F1001 on the RF Unit). If it is open substitute with a 8V 100mA pilot lamp. Do not jumper across the lamp fuse terminals however, as this will defeat the protection and could result in serious damage.
FT-757GX-II / SX-II price
We have collected for your convenience the Yaesu FT757-2 sale price (US Dollar) 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 |
USD 411.00 (349EUR) |
2021-jun |
Second Hand Good condition and working. Comes with original microphone and power lead |
USD 388.00 (299GBP) |
2020-aug |
Second Hand Good used condition |
USD 500.00 | 2019-dec |
Second Hand With desktop microphone (Yaesu MD-1B8) and heavy duty power supply (Yaesu FP-757HD) |
USD 303.00 (400AUD) |
2016-feb |
Second Hand In excellent condition. Comes with original manual, power cable and hand microphone |
FT-757GX-II / SX-II review
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