Elecraft K3S

    Elecraft K3S - Front viewElecraft K3S - Front view
Type
Desktop Amateur HF/VHF Transceiver 
Frequency range RX
10-160 m + WARC / 6 m
Optional 2m / 630m 
TX
0.5-30 / 50-54 MHz (2m option) 
Frequency stability
+/- 5 p.p.m. (0-50 °C) TCXO standard; +/- 1 p.p.m. TCXO opt. (+/- 0.5 p.p.m. typ., 0-50 °C). K3EXREF option locks TCXO to an external 10-MHz reference (+/- 1 to 2 Hz typ.). 
Tuning steps
1, 10, 20, and 50 Hz fine steps; user-configurable coarse tuning steps (per-mode). 
Filters
2.7 kHz + variable IF DSP
Options: 200 Hz, 250 Hz, 400 Hz, 500 Hz, 1 kHz, 1.8 kHz, 2.1 kHz, 2.8 kHz, 6 kHz (AM & ESSB), & 12 kHz for FM 
Receiver
Modulations
AM / FM / CW / USB / LSB / FSK / AFSK / RTTY / PSK31 
Sensitivity
HF, Preamp off: -133 dBm. Preamp 1: -138 dBm. Preamp 2 (12/10/6 m): -145 dBm 
Selectivity
Receiver system
Hybrid SDR / Double conversion superheterodyne 
IF-frequencies
1st: 8.215 MHz
2nd: 15 kHz 
Image rejection
≥ 70 dB 
Audio output
2.5 W per channel into 4 ohms; typ. 10% THD @ 1 kHz, 2 W, Line level + headphones 
Transmitter
Modulations
AM / FM / CW / USB / LSB / FSK / AFSK / RTTY / PSK31 
RF-output
0.1-10 / 0.1-100 
Connections
Antenna
BNC + SO-239 
Impedance
50Ω 
Electrical
Power requirements
11-15V DC 
Current drain RX
0.9 A 
TX
17-22 A 
Physical
Dimensions (w×h×d)
112 × 282 × 300 mm (4.41 × 11.10 × 11.81 in) With projections 
Weight
3.8 kg (8.4 lbs) Without options 
Form factor
Desktop 
Manufactured
Between 2015 and 20xx in USA 
Other features
Memories
144 channels in 1 banks  
Usage
Amateur / Ham radio operators 
Manufacturer
Elecraft 
Model
K3S
Features
RS-232C / USB-B
Built in PSK, RTTY, and CW text decode/display
Built-in keyer
DVR option
Sub RX option
High-contrast LCD
Dual VFOs
Real-time clock 
Manuals, Diagrams and Brochures
 
None available  

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