8
Specifications
Some specificationsapply only if the corresponding option modules are installed (see Options, pg. 44).
GENERAL
Frequency Range Main and Sub Receivers, 500 kHz - 30 MHz and 48-54 MHz. Transmitter: Amateur
bands between 1.8 and 54 MHz; transmit limits vary by country.
Tuning Step Sizes 1, 10, 20, and 50 Hz; user-configurable coarse tuning steps (per-mode). Direct keypad
frequency entry in either MHz or kHz
Memories 100 general purpose, plus 4 “quick memories”per band
Frequency Stability +/- 5 ppm (0-50 C) TCXO standard; +/- 1 ppm TCXO optional
Antenna Jacks 50 ohms nominal. One SO-239 supplied (2nd SO-239 jack supplied with KAT3 ATU).
BNC jacks for RX antenna in/out and transverter in/out (KXV3 Option).
Modes USB, LSB, AM, FM, CW, and DATA. In DATA mode: FSK D (Direct), AFSK A
(Audio), PSK D (Direct) and DATA A (Audio; PSK, etc.). Built in PSK, RTTY, and
CW text decode/display.
VFOs Dual VFOs (A and B) with separate weighted tuning knobs
Remote Control Port EIA-232 standard DE-9F; USB adapter option. Full control of all radio functions
Audio I/O Line-level isolated TX/RX audio interface (stereo outputs); front (1/4”) and rear (1/8”)
stereo headphone jacks; stereo speaker jack
Low Level Transverter
Interface
0 dBm typ.; BNC connectors (KXV3 Option)
Buffered IF output BNC connector (KXV3 Option); see pg. 38 for interface recommendations
Other I/O Key/Keyer/Computer, Paddle, PTT In, and KEY Out. Band information output via
binary interface and AUXBUS on ACC connector.
Real-Time Clock/Calendar Accuracy: Approx. +/- 20 ppm (+/- 2 seconds/day). U.S. and E.U. date formats.
Battery: 3 V coin cell (see pg. 47 for replacement instructions).
Supply Voltage
/Current
13.8 V nominal (11 V min, 15 V max). 17-22 A typical in TX for K3/100, 3-4 A
typical in TX for K3/10. 0.9A typical RX (less sub receiver).
Recommended supply: 13.8VDC @ 25A, continuous duty for K3/100; 13.8VDC @
6A for K3/10. For best results, use thesupplied 5 foot (1.53 m) power cable.
Accessory DC output Switched, 0.5 A max; 13 V no-load, 12 V max load (@ Vsupply = 13.8 V)
Weight (K3/100) Approx. 8.5 lbs. (3.8 kg). With KRX3 sub receiver option, 9.5 lbs. (4.3 kg).
Size Enclosure only, 4.0 x 10.7 x 10.0 in., HWD (10.2 x 27.2 x 25.4 cm); with projections,
4.4 x 11.1 x 11.8 in. (11.2 x 28.2 x 30.0 cm)
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