Elecraft K3S 160-6m Low-Noise SDR Transceiver

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Upgraded version of the Elecraft K3. Improvements include:
Ultra low-noise synthesizer for exceptional strong-signal receive
performance and transmit signal purity (KSYN3A)
• USB port–integrates remote control and line-level audio,
eliminating the need for a PC sound card and audio cables
• Second preamp for 12-6 m weak signal work (on included KXV3B
module)
• Multiple attenuators, providing steps of -5/-10/-15 dB
• Enhanced look and feel, with new LCD bezel, soft-touch VFO knob
• Lower-Loss ATU option with true bypass relay (KAT3A)
• Redesigned AF output circuitry for outstanding speaker audio
• Accurate, high-speed CW transmit even in SPLIT mode
• Coverage of the 630-meter band (~470 kHz), and lower1

Frequency range

RX-range
10-160 m + WARC / 6 m
Optional 2m / 630m
TX-range
0.5-30 / 50-54 MHz (2m option)
HAM bands
160m  80m  60m  40m  30m (WARC)  20m  17m (WARC)  15m  12m (WARC)  11m (CB)  6m  2m  10m 
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   PSK31/63  
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   PSK31/63  
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
3.80 kg (8.4 lbs) Without options
Form factor
Base Station
Manufactured
Between 2015 and 20xx in USA
MPN

Other features

Memories
144 channels in 1 bank(s)
Usage
Amateur / Ham radio operators
Features + options
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
Accessories
-

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