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Last modified 2025-08-22

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Zettl JPX-20 SSB

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SPECIFICATIONS

GENERAL
Type:Amateur HF transceiver
Frequency range: TX: 10 / 11 / 12 / 15 / 17 / 20 m + MARS
RX: 14-30 MHz
Tuning steps:10 / 100 Hz
1-50 kHz selectable in 1 kHz steps
Frequency stability:±0.5 ppm @ -10° to +60°C (14° to 140°F)
Mode:AM / FM / SSB / CW / Data
Channels / memory management: None
Repeater shift / offset:-100 kHz
Power supply:10-16.8 VDC (Four internal 18650 Li-Ion batteries)
Current drain / power consumption:RX: 45 mA @ 13.8 VDC (With signal)
TX: Max 1.6 A @ 13.8 VDC
Antenna impedance / connector:50 ohm / Phono (RCA)
or built-in telescopic whip (1.42 m / 56")
Dimensions (W*H*D):70*200*40 mm (2.8*7.9*1.6")
Weight:500 g (1.1 lb), with internal battery and antenna
Other features: Built-in ATU for the telescopic whip. Automated FT8 CQ-call over all
bands for easy and fast propagation check. The OLED display can be
rotated to suit any wearing position.




RECEIVER SECTION
Receiver system: SDR I/Q
Sensitivity:Better than 1.0 uV (12 dB S/N)
Squelch sensitivity:0.4 uV (Threshold)
Noise figure:
Selectivity:
Image rejection:
AF output power / speaker:800 mW at 10% distortion / 8 ohm
External speaker connector:RJ45




TRANSMITTER SECTION
RF output power: Up to 10 W @ 13.8 VDC with internal Li-Ion batteries
Modulation system:SDR I/Q
Max FM deviation (Factory set):±2.2 kHz
Spurious emissions:Better than -43 dB
Microphone impedance / connector:2.2 Kohm (Electret) / RJ45
Microphone input level:10 mVpp




MISCELLANEOUS
Manufactured:Germany, 2024-202x
Additional info: Also available in olive-green and orange.
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
ZFX-250
ZFX-320
ZFX-430
ZFX-1000
ZFX-1200
ZFX-3000
Speaker-microphone with rotary clip
Carrying pouch with Molle system, grey-green
Spare Li-Ion battery pack. 14.4 V, 3000 mAh (43 Wh)
Spare telescopic antenna (1.42 m / 56")
Tactical slide-on blade antenna (82 cm / 32")
External wide-band tune-free antenna 20-30 MHz