Being introduced to market about two years ago, the PERSEUS still is in the spotlight and presented in lectures, as during the German fair Ham Radio 2009 or the AMSAT Symposium in the observatory Bochum.
When will you use digital radio technology? The Perseus is a „Software Defined Receiver“. This means central properties of reception, demodulation, use and usability are all controlled by the software.
One example for this would be filters protecting the signal from interference. In place of just a few filters each for only a specific narrow bandwidth, as has been standard so far, now the software itself filters the reception signal.
This allows listeners to tailor bandwidth exactly to each interference condition, modulation and operating mode with no further need for purchasing additional filters or sacrificing reception quality during filter selection.
Perseus Manual
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Nils Schiffhauer,
Perseus eine Kurzwellen-Revolution, die begeistert!
Download PDF (in German)
Technical specifications
Frequency Coverage
|
10 kHz - 30 MHz (tunable 0 - 40 MHz) |
| Modes |
Software-definied, AM, S-AM, SSB, RTTY, CW, FMN and more
|
| Sensitivity |
0,39 müV in SSB at 10 dB S+N/N |
Selectivity
|
Software-defined, Stop Band attenuation >100 dB |
Image Rejection
|
90 dB |
| Input IP3 |
+31 dBm |
| Dynamic Range (IMD3) |
100 dB (SSB, 2.4 kHz); 104 dB (CW, 500 Hz) |
| Spurious free Dynamic Range |
110 dB |
| Blocking Dynamic Range |
125 dB (CW, 500 Hz) |
| MDS (Minimum Detectable Signal) |
-131 dBm (bandwidth 500 Hz, Preamp On) |
| |
-124 dBm (bandwidth 2.4 kHz, Preamp On) |
| ADC Clipping |
-3 dBm, resp. -6 dBm (Preamp On) |
| Attenuator |
0, 10, 20, 30 dB |
| Low pass filter |
0-1.7 MHz |
Band pass filters
|
1,7-2,1, 1,1-3,0, 3,0-4,2, 4,2-6,0, 6,0-8,4 |
| |
8,4-12,0, 12-17, 17-24, 24-32 MHz |
| |
sowie OFF (0-40 MHz im Breitband-Modus) |
| ADC (Analogue/Digital-Converter) |
14 bit, 80 Ms/s with internal Dither Generator |
| DDC (Digital Downconverter) |
FPGA (Xilinx Spartan IIIE XC3S250E) |
| PC-Schnittstelle |
USB2.0, 480 Mbit/s |
| Sampling Rate(Output) |
125 Ks/s, 250 Ks/s, 500 Ks/s, 1 MS/s, 2 MS/s |
| Output-Bandwidth |
100/200/400/800/1600 kHz |
| |
(bei Alias-Unterdrückung von 130 dB) |
| Output Signal |
24 bit/sample I-Q/Pair |
| PC-Requirements |
2,5 GHz Dual Core Processor, 1 GB RAM |
Power Supply requirements
|
+5V DC +/-5% - 700 mA |
| Universal-Power Supply |
f. 110/240V AC (included) |
| Cabinet |
Aluminium Enclosure, 110 x 36 x 185 mm (B x H x D) |
Operating Temperature Range
|
0-40 °C |
| Frequency Accuracy |
±1 ppm after calibration |
| Weight |
380 g |
Perseus - When will you use digital radio technology?
What makes PERSEUS truly revolutionary is a real-time frequency display capable of
spanning a spectrum of up to 1600 kHz. By clicking on individual stations within this spectrum,
they can be selected for listening in unprecedented quality.
What's more, the entire frequency spectrum can be saved to hard drive. In effect, this permits
listening to anything within that spectrum of up to 1600 kHz later on. On top of this, it is also possible
to further adjust the spectrum after recording.
Another part of PERSEUS is a waterfall diagram used for visual tracking of all activity within a spectrum of even up to 40 MHz over an extended period of time.
Technologically, this is achieved by a radical departure from the traditional principle of frequencyoverlap (i.e., superheterodyne). Accordingly, PERSEUS has been designed as a digital direct-sampling receiver. This means you won't have to worry about anything like intermediate frequencies and mixer products. Thanks to its 14-bit analog-to-digital converter, PERSEUS can generate 80 million samples per second at an excellent SNR of 76 dB (for a bandwidth of 40 MHz). To avoid overmodulation, PERSEUS also includes 10 passband filters, a three-stage attenuator (10, 20, 30 dB), plus a dynamic preamplifier with intercept point 3rd order of +30 dbm.
Perseus - Advisory Service
You have questions about the receiver?
You have questions regarding software?
You need help to solve a problem?
You need assistance during installation?
You want to configure your Perseus Receiver with our advice?
Please make sure to check our FAQ´s !
Our SDR-Team will be pleased to help:
Monday to Thursday 08:30am - 5:00pm, Friday - 3:00pm.
Phone: +49 2941-93385-0 or
eMail: sdr@ssb.de
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