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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 characteristics

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
None

Receiver

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
Filters
?
Receiver system
Doulbe 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

Transmitter

TX-range
10-160 m + WARC
Modulations
AM   FM   CW   USB   LSB  
RF-output
SSB/CW: 1-100 W, AM: 1-25 W

Connections

Antenna
SO-239
Impedance
50Ω
Other
-

Electrical

Power requirements
13.8V DC ±10%
Current drain RX
1.2 A
TX
20 A max

Physical

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 199x in Japan

Other features

Usage
Amateur / Ham radio operators
Features + options
-
Accessories
-
RigReference ID
4358
MPN
YAESU-FT-000840

Manuals, diagrams and brochures

Yaesu FT-840-Brochure PDF - Unknown size, submitted by RigReference
Yaesu FT-840 Schematic Diagram PDF - Unknown size, submitted by RigReference
Yaesu FT-840 Technical Supplement PDF - Unknown size, submitted by RigReference
 
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Reviews & stories

Rating Title Submitted
Dependable and great audio 3 years ago by wa1ufo
Can't go wrong with this rig 7 years ago by NH6RF
Great Beginners Rig 8 years ago by KA9MOT

New and second-hand prices

Estimating the value of a rig can be challenging. We collect prices paid by real hams over the years to help you estimate the value of a used Yaesu FT-840. Just bought or sold this model? Let us know what you traded it for and help other ham operators!

Based on historic data, today's second-hand price of the Yaesu FT-840 is around:

  • EUR 225.00 ~ EUR 99.00
  • USD 315.00 ~ USD 139.00
  • GBP 118.00

Price History Chart

These estimates are based on the following prices:

Year Historic price Condition Submitted by
2020 EUR 100.00 Used / Mint Stefan Andreas
2016 USD 330.00 Used / Good RHB
2015 EUR 250.00 Used / Poor Ruediger
2011 USD 280.00 Used / Good NH6RF
2010 USD 400.00 Used / Good KC2UGV

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