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Yaesu FT-840 Amateur HF transceiver



Yaesu FT-840 Amateur HF transceiver


In stock


Blending the high performance digital frequency synthesis techniques from the Yaesu FT-890 with the operating convenience and affordability of the FT-747GX, the FT-840 adds a choice of two optional remote automatic antenna tuners and a wealth of convenient functions. For compact base and mobile stations, the FT-840 set the new standard for high-performance affordable transceivers. As a first-time rig, back-up or main station transceiver, the FT-840 has the features and dependability that both beginners and seasoned operators will appreciate.
Low Noise Receiver
The receiver section of the FT-840 includes direct feed to the first mixer, for excellent rejection of intermodulation. The careful design yields a highly sensitive receiver that is renowned for its “quiet” performance.
Ease of Operation
Without the clutter and complexity of some other rigs, the FT-840’s outstanding ergonomics mean you always find the button or control you need quickly. The reduced number of keys also means that there is a greater proportion of the front panel space dedicated to the display than on competing rigs.
IF Shift
To help reduce interference on SSB or CW, the IF Shift feature allows you to move the center frequency of the passband around, rolling off interference from either the high or low side. Once a feature only found on top of the line transceivers, it’s here for you on the FT-840!
Direct Digital Synthesis (DDS)
The lightning-fast DDS system provides instant lock time for the synthesizer, along with ultra-fine tuning steps, for silky-smooth tuning similar to that found on older analog VFOs.
Computer Control Capability
The FT-840 supports Yaesu’s CAT System for computer control. Use your favorite logging program to read your current operating frequency, or send frequency commands based on “spots” from your local packet cluster.

 General Specification

HAM bands 160m  80m  60m  40m  30m (WARC)  20m  17m (WARC)  15m  12m (WARC)  11m (CB)  10m
Frequency stability ± 10 p.p.m. (or ± 500 Hz FM)
Tuning steps 10 / 100 Hz (CW, SSB)
100 / 1000 Hz (AM, FM)
Memories 100 channels in 1 bank(s)
RX-range 0.1-30 MHz
Modulations AM   FM   CW   USB   LSB
Sensitivity 1.8-30 MHz (CW, SSB, AM): < 2.0 µV
20-30 MHz (FM, optional): < 0.32 µV
Selectivity CW: 500 Hz @ -6 dB, 1.8 kHz @ -60 dB
SSB, CW, AM: 2.2 kHz @ -6 dB, 5.0 kHz @ -60 dB
W-AM: 6 kHz @ -6 dB, 14 kHz @ -60 dB
FM: 8 kHz @ -6 dB, 19 kHz @ -60 dB
Receiver system Double/triple conversion superheterodyne
IF-frequencies 1st: 47.055 MHz
2nd: 8.215 MHz
3rd: 455 kHz (FM, optional)
Image rejection 60-70 dB
Audio output 1.5 W
TX-range 10-160 m + WARC
Modulations AM   FM   CW   USB   LSB
RF-output SSB/CW: 1-100 W, AM: 1-25 W
Antenna SO-239
Impedance 50Ω
Power requirements 13.8V DC ±10%
Current drain RX 1.2 A
TX 20 A max
Dimensions (w×h×d) 238 × 93 × 243 mm (9.37 × 3.66 × 9.57 in)
Weight 4.50 kg (9.9 lbs)
Form factor Base Station
Manufactured Between 1993 and 200x in Japan

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