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Ultra-portable HF transceiver with built-in paddle and antenna tuner (AT).

General characteristics

HAM bands
160m  80m  60m  40m  30m (WARC)  20m  17m (WARC)  15m  12m (WARC)  11m (CB)  6m  2m  10m 
Frequency stability
+/- 1 p.p.m. typical over 0-50 °C
Tuning steps
?
Memories
150 channels in 1 bank(s)

Receiver

RX-range
0.310-32 / 44-54 MHz (160-6 m)
144-148 MHz optional (2 m)
Modulations
AM   FM   CW   USB   LSB   RTTY   PSK31/63  
Sensitivity
-138 dBm typ. with 20 dB preamp, 500 Hz bandwidth
-140 dBm typ. on 6 m with 30-dB preamp
Selectivity
500 Hz
Filters
Optional roofing filters (KXFL3)
Receiver system
SDR
IF-frequencies
?
Image rejection
≥ 50 dB
Audio output
500 mW

Transmitter

TX-range
0.310-32 / 44-54 MHz (160-6 m)
144-148 MHz optional (2 m)
Modulations
AM   FM   CW   USB   LSB   RTTY   PSK31/63  
RF-output
HF: 12 W, 6m: 10 W, 2m: ?

Connections

Antenna
BNC + SMA
Impedance
50Ω
Other
-

Electrical

Power requirements
8~15 V DC
Current drain RX
150 mA
TX
2 A max

Physical

Dimensions (w×h×d)
188 × 89 × 41 mm (7.40 × 3.50 × 1.61 in)
Weight
680 gr (1.5 lbs) without options
Form factor
Portable
Manufactured
Between 2012 and 20xx in USA

Other features

Usage
Amateur / Ham radio operators
Features + options
Software Defined Radio
Built-in auto-AT
Built-in keyer and paddle
100 W PA option
Dual VFO's
Optional 2 meter module (KX3-2)
8 band RX EQ
Lunable I.F. passband width/shift
Optional roofing filters (KXFL3)
Accessories
-
RigReference ID
5497
MPN
ELECRAFT-KX000003

Manuals, diagrams and brochures

Elecraft KX3 Owner's Manual (preliminary) PDF - Unknown size, submitted by RigReference
 
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Reviews

Rating Title Submitted
Wonderful Rig 10 years ago by misterav8r
Grandi prestazioni! 13 years ago by maurizio.scansani

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 Elecraft KX3. Just bought or sold this model? Let us know what you traded it for and help other ham operators!

Based on historic price data, today's estimated value of the Elecraft KX3 in Good condition is around:

  • USD 714 ~ USD 925
  • EUR 902

Price History Chart

These estimates are based on the following prices:

Year Historic price Condition Submitted by
2025 USD 800.00 New / Mint Ken Myers
2021 USD 1333.00 Used / Good Kevin Zembower
2017 USD 1049.00 New / Mint RigReference
2013 USD 1000.00 New / Mint misterav8r
2012 EUR 1200.00 New / Mint maurizio.scansani

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