SDR Transceiver

ZS-1 SDR Transceiver New

ZS-1 Transceiver ZS-1

The ZS-1 is a 'direct sampling' software defined radio (SDR) transceiver for shortwave. The excellent performance data is repsonsible for a very good ranking at the QST transceiver tests, as you can see here: The features of this transceiver make it very well suitable for stand-alone operation as well as a driver for a VHF/UHF/SHF transverter.

The maximum output power of the ZS-1 is 15W on amateur bands, and can be adjusted very precisely by software. The minimum power level is 0 dBm. For operation as an exciter for transverters the ZS-1 can transmit on all frequencies from 300 kHz to 30 MHz with low power. The receiver offers continous coverage from 300 kHz to 30 MHz, due to the band filters the transmitter is limited to the amateur bands when using high power mode. The 40m coverage goes up to 7200 kHz. The antenna connection is provided by a PL (SO-239) socket, several other connectors are available to use a transverter, an amplifier or other accessories. The power supply requires a DC voltage from 12 to 15V, max. current consumption is 4A.

ZS-1 rear panel ZS-1 rear panel

The connection from the ZS-1 to the computer is achieved via a USB 2.0 interface. The supplied Windows software offers comfortable transmit and receive operations and the control and settings of all parameters. Typical for an SDR is the wide spectrum display and waterfall. The width can be adjusted from 160 to 4000 kHz. Of course the received spectrum can be recorded and analysed later on. Other programs which can use the ZS-1 are "ham radio Deluxe" and "" The supplied software also supports the decoding of PSK31 and RTTY modes. Further a client/server operation is possible, allowing you to use the transceiver over a remote network. The modulation is done via a microphone (e.g. from a headset) connected to the computer.

The ZS-1 SDR transceiver is manufactured in Germany.

Technical Data ZS-1
Frequency Range RX 0.13 – 30 MHz
Sensitivity (MDS, Preamp on) -141 dBm
Sensitivity (MDS, Preamp off) -135 dBm
Blocking Level (Preamp on) -22 dBm
Blocking Level (Preamp off) -5 dBm
Inband IIP2 (Preamp on) 63 dBm
Inband IIP3 (Preamp off) 28 dBm
Attenuator 4, 10, 14 dB
Recording Bandwidth 10, 20, 40, 100 kHz
Display Bandwidth 160, 320, 800, 1600, 4000 kHz
IQ Data width24, 32 Bit
Frequency Range TX, High Power HF HAM bands 10, 12, 15, 17, 20, 30, 40, 80, 160 m
Frequency Range TX, Low Power 300 - 30000 kHz
Max. Power (output) 15 W
Min. Power (output) 1 mW
Harmonics Level < -50dB
Non harmonics Level < -78dB
Bandwidth 10kHz
IQ Data width 16 Bit
Generel Data
PC Interface (Data & Control): USB 2.0, Mini-USB 'B' socket
12 – 15 V
Current consumption (Rx) 0.5 A
Current consumption (Tx) 4 A
Dimensions 240 x 170 x 34 mm
Weight 1.2 kg

  • Included in the shipment of the ZS-1 is:
  • ZS-1 SDR Transceiver
  • Power Supply Cable
  • USB Cable
  • CD-ROM with Software and manual (PDF)
Order No.
ZS-1 Zeus ZS-1 SDR Transceiver Shortwave 1499.00 € Buy now New Not in stock, ordered only on customer request, delay at c. 7 days.
Info freight charges
Download: ZS-1 Short form manual (PDF, DE, 72KB)
Download: ZS-1 Manual (PDF, DE, 2.6MB)
Download: ZS-1 Short form manual (PDF, EN, 70KB)
Download: ZS-1 Manual (PDF, EN, 2.6MB)