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Last modified 2023-01-17

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Yaesu FT-One

A picture of Yaesu FT-One


Type:Amateur HF transceiver
Frequency range: TX: 10-160 m + WARC
RX: 0.15-30 MHz
Tuning steps:10 / 100 Hz, 100 KHz, 1 MHz
Frequency stability: Less than 300 Hz during the first 30 minutes after 10 minutes warmup.
Less than 100 Hz every 30 minutes thereafter
Mode:AM / LSB / USB / CW / FSK (FM option)
Channels / memory management: 10 regular
RAM storage (External power needed for memory retention)
RAM board and battery holder option (Three LR6 / AA batteries)
Repeater shift / offset:No dedicated. Use VFO A/B split instead
Power supply:Mains: 100-120 VAC or 200-234 VAC (3-pin IEC C14 connector)
or 13.8 VDC 10% (8-pin Jones connector)
Current drain / power consumption:RX: Max 2.7 A @ 13.8 VDC (90 VA @ mains)
TX: Max 20 A @ 13.8 VDC (560 VA @ mains)
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):370*157*350 mm (14.57*6.18*13.78")
Weight:17 Kg (37.48 lb)
Other features:NB. IF shift. Notch. VOX. SWR-meter. Variable IF bandwidth. Full QSK.

Receiver system: Double conversion superheterodyne (AM/SSB/CW/FSK)
1st IF: 73.115 MHz
2nd IF: 8.9875 MHz
Triple conversion superheterodyne (FM)
1st IF: 73.115 MHz
2nd IF: 8.9875 MHz
3rd IF: 455 KHz
Sensitivity: AM (10 dB S/N)
0.15-1.8 MHz: 30 uV
1.8-30 MHz: 2 uV
SSB/CW(W)/FSK(W) (10 dB S/N)
0.15-1.8 MHz: 5 uV
1.8-30 MHz: 0.3 uV
Selectivity: SSB/CW(W)/FSK(W)
2.4 KHz (-6 dB)
4 KHz (-60 dB)
Image rejection:80 dB
AF output power / speaker:3 W at 10% distortion / 4 ohm
External speaker connector:3.5 mm, 4-16 Ohm

RF output power:

Max pwr
AM:25 W
FM:50 W
SSB (PEP):100 W
CW:100 W
FSK:50 W

NB! The SSB/CW output power is slightly lower on 10 m
Modulation system:AM: Low level
FM: Variable reactance
SSB: Balanced modulator
Max FM deviation (Factory set):5 KHz
Spurious emissions:Better than -50 dB
Microphone impedance / connector:500-600 ohm / 8-pin (Metal locking ring connector)
Microphone input level:? mV

Manufactured:Japan, 1981-1986 (Discontinued)
Additional info:
Related documents: User manual (2.6 MB)
Technical manual (24 MB)
Modifications and fixes:
Options / Accessories:
FM unit
Keyer unit
RAM board
FM unit
Desktop microphone
Desktop microphone
Keyer unit
RAM board and battery holder
6 KHz AM filter
600 Hz CW filter
300 Hz CW filter
800 Hz CW filter
Desktop microphone
Hand microphone with up/down buttons
Hand microphone
Hand microphone
Desktop microphone with up/down buttons
A rear picture of Yaesu FT-One