That’s what radio amateurs have been waiting for!
Deliveries started on March 22, 2013 ...
Software defined receivers have been state-of-the art for years already; now the ZS-1 from
St. Petersburg offers SDR Transceiver capabilities at “direct sampling” level.
The ZS-1 is a real software defined shortwave transceiver for the classic HF amateur
bands, including WARC bands, offering an output power of up to 15 W. For receiving purposes,
the transceiver covers all frequencies between 300 kHz to 30 MHz. High quality band pass
filters ensure clean signals. A broadband spectrum and waterfall display inform simultaneously
about activities within a given band, so no pile up will remain undetected.
Picture of the new version 2.5
Big sized picture
The transceiver is connected to the PC via a USB2.0 connection, a built-in interface
additionally allows to operate the unit via an IP address, and also CAT-connectivity is ensured.
The delivery includes the comfortable operation software Zeus Radio, which was written
especially for the ZS-1. It offers access to all functions, including the comprehensive
settings for the digital signal processing of the microphone input and the integrated CW
keyer. Furthermore the software packages Ham Radio Deluxe, SDR.com and SDRmax III
may be used in conjunction with the ZS-1.
The transmitter output power is adjustable from 0 dBm (within the entire range, for antenna
analysis or operation of a transverter) up to 15 W within the amateur radio bands.
A power monitor with additional display of voltage and current is included, too, including
software protection of the final amplifier against high values.
In the future the SWR will be displayed also, the essential hardware is already built-in.
Big sized picture
- KEY socket for paddle or traditional Morse keyer
- PTT socket for manual transmitter activation by a footswitch
- ALC (Automatic Level Control)
- TX RCA jack is closed to ground while the transmitter is engaged
- ACC socket allows control of up to eight external devices
The ZS-1 is manufactured in Germany and will be available in quarter 4/2012 at SSB-Electronic.
See Big sized picture
Connections of the ZS-1.
||0.3 – 30 MHz
|Sensitivity (MDS, Preamp on)
|Sensitivity (MDS, Preamp off)
|Blocking Level (Preamp on)
|Blocking Level (Preamp off)
|Inband IIP2 (Preamp off)
|Inband IIP3 (Preamp off)
||4, 10, 14 dB
||10, 20, 40, 100 kHz
||160, 320, 800, 1600, 4000 kHz
|IQ data bit-width
||HF HAM bands 10, 12, 15, 17, 20, 30, 40, 80, 160 m
||max. 15 W
||< -50 dB
|Non harmonics Level
||< -78 dB
|IQ data bit-width
|PC Interface (data & control)
||12 – 15 V
|Supply current (receive)
|Supply current (transmit)
||240 x 170 x 34 mm
Please visit our extensive
ZS-1 FAQ Page!
Get a picture of the new ZS-1: The recent software version allows the replay of broadband files.
Within the recorded frequency range all functions can be explored that are available also for real-time reception.
Simply download the software and recordings of your choice. The files have to be unpacked first (for example with WinZip) and may be played back with the IQ Player then.
Zeus Software v2.6
Zeus Breitbandfile 40 Meterband
Zeus Breitbandfile 80 Meterband
Zeus Breitbandfile 9765 kHz (AM)
Zeus Breitbandfile 9520 kHz (AM)
Zeus Breitbandfile 7017 kHz (CW-1)
Zeus Breitbandfile 7017 kHz (CW-2)
Zeus Breitbandfile 14180 kHz (SSB)
Zeus Breitbandfile 7095 kHz (SSB)
Zeus Breitbandfile 21110 kHz (Digital)
Zeus Breitbandfile 21074,5 kHz (JT65)
Zeus Breitbandfile 9955 kHz (DRM)
The IQ Player will be started by a double click with the left mouse button and activated by a click on the ringlike upper left button.
It is appropriate to activate also the automatic repeat function (white circular arrow on a blue background), to listen to the respective recording as an infinite loop.
Windows XP/Vista/7/8 x32 / x64. USB2.0 Port, Intel Core 2 Duo 1,5 GHz with 2 GB RAM, Video card with OpenGL 1.5 or higher.
For more information
The manual is available here (v2.6):
Firmware Update (only needed for certain features of Version 2.5):
Download Firmware Tool