Included:

Eight New NiMH batteries.

Elecraft USB interface cable.

Elecraft MH3 microphone.

Specifications

GENERAL

Frequency Range Frequency Stability Antenna Modes VFOs Accessory I/O (ACC2 Jack) Supply Voltage

and Current

Size and Weight RECEIVER*

Sensitivity (MDS),

500-Hz bandwidth

310 kHz - 32 MHz and 44-54 MHz; 120-168 MHz with KX3-2M; 65-72 MHz with

KX3-4M. Transmit exclusions vary by country. See receiver sensitivity note below.

+/- 1 ppm typical over 0-50 C. An extended temperature compenstation procedure can

be applied for improved stability (refer to our KX3 web page).

50 ohms; HF: BNC jack; 2 and 4 m: SMA (supplied with KX3-2M/4M option)

USB, LSB, AM, FM, CW, DATA; built-in PSK/RTTY/CW text decode/display

Dual VFOs (weighted VFO A knob); 150+ memories; scanning/channel hopping

KEYLINE: 30 V, 100 mA max, open drain; GPIO: 0-3 V (see ACC2 IO menu entry)

8 V min, 15 V max. 1 to 2 A typical in transmit; 150 mA minimum receive, typical

(backlight off, preamp off, no signal)

Size: 3.5 x 7.4 x 1.6” (8.8 x 18.8 x 4.1 cm); weight: 1.5 lbs. (0.68 kg) less options

Image and I.F. Rejection Audio Output Receive Features -138 dBm (typ.), 20 dB preamp; -140 dBm typ. on 6 m with 30-dB preamp; -144 dBm

(typ.) on 2 m/4 m. Notes: (1) Sensitivity rolls off below 1.8 MHz due to protective

high-pass filtering; preamp-on MDS @ 0.55 MHz, 94 dBm (typ.). (2) Image rejection

in 0.5-1.5 MHz range can be improved by installing KXAT3 option (see MENU:ATU

MD). (3) With KX3-2M/4M modules, sensitivity falls off outside the ham bands.

55-70 dB typ. (varies with filter settings, mode, and band)

Internal speaker, 0.5 W typ.; headphones/ext. speaker jack, 0.1 W/channel (stereo)

8 band RX EQ, tunable I.F. passband width/shift, optional roofing filters (KXFL3)

TRANSMITTER*

Output Power:

Adjustable 0 to 10 watts

Carrier Suppression Harmonic / Spurious Outputs CW Sidetone/Transmit offset 10 W PEP, 160-15 m; 8 W PEP, 12-6 m.

Supply voltage of 11 V or higher (on key-down) required for settings above 5 W.

5 W or less recommended for high-duty-cycle modes (FM, AM, DATA). Power will automatically be reduced if PA temperature or current limits are exceeded.

Split-band, adjustable speech compression; 8-band TX EQ; VOX; 2 DVR messages

Full and semi CW break-in with adjustable delay; diode T/R Switching; 6 messages

> 50 dB typ.

> 50 dB below carrier @ 10 W (> 60 dB on 6 meters)

400-700 Hz, adjustable (receive filter center frequency tracks sidetone pitch)

* Specifications apply only within ham bands except as noted. All measurements taken with 13.8 VDC supply.