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Frequency Shift Exciter XFK Receiver-Transmitter
10 W Rucksack repeater
HF/VHF SDR Receiver

General

HAM bands ? 70cm  160m  80m  60m  40m  30m (WARC)  20m  17m (WARC)  15m  12m (WARC)  11m (CB)  2m  1.25m  10m  4m 
Freq. stability ? ± 2.5 p.p.m. 0.5 p.p.m.
Tuning steps ? 12.5 / 25 kHz 1 p.p.b.

Receiver

RX-range ? 400-470 MHz 0.005-31 / 60-260 MHz
Modulations CW   FM   All mode   Multiple (Software defined)  
Sensitivity ? 0.25 µV / 12db SINAD 15 MHz: 0.022 µV (MDS @ 500 Hz BW)
64-118 MHz: 0.021 µV (MDS @ 500 Hz BW)
118-260 MHz: 0.02 µV (MDS @ 500 Hz BW)
Selectivity ? ? ?
Filters ? ? Tracking RF filters
Receiver system ? ? Direct sampling SDR
IF-freqs. ? ? ?
Image rejection ? ≥ 70 dB 120 dB
Audio output ? ? -

Transmitter

TX-range 1-6.9 MHz 400-470 MHz -
Modulations - FM   All mode   Multiple (Software defined)  
RF-output 3 W 5 / 10 W ?

Connections

Antenna - - SMA
Impedance 50Ω 50 Ω 50Ω
Other - - USB

Electrical

Power req. Mains 12 - 13.8 V DC 20,000 mAh Lithium battery 5 V DC (USB port)
Current RX ? ? ?
TX ? ? -

Physical

Manufactured Between 195x and 196x in USA Between 201x and 201x in China Between 2019 and 202x in China
Dimensions 480 × 270 × 405 mm
(18.90 × 10.63 × 15.94 in)
160 × 43 × 147 mm
(6.30 × 1.69 × 5.79 in)
45 × 10 × 60 mm
(1.77 × 0.39 × 2.36 in)
Weight 20.85 kg (46.0 lbs) 2.00 kg (4.4 lbs) (4 kg with backpack) ?
Form factor Base Station Mobile Headless

Other features

Memories ? ? ?
Usage Marine / Navy Amateur / Ham radio operators Amateur / Ham radio operators
Features ? CTCSS / DCS
PC programmable
Pre-selectors and Polyphase tracking filters
Accessories ? ? ?
MPN TMC-XKF BAOJIE-BJ-000851 AIRSPY-HF+-DISCOVERY