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PM-SDR
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A new SDR-receiver from the italian SDR developers community:
low-cost, DDS-less "Software Defined Radio" full coverage receiver for all HF bands, used with powerful software on the PC for multi-mode operation
Downloads & Documentation WinRad + PMSDR2.1 Screenshoot (with a 16bit AC97 Sound Card)
Kit / Availability Gallery: Final aluminium enclosure (with LCD-version) PMSDR2.0 mod's Listening samples (7-Zip compressed) WAV-files recorded with PMSDR2.1 (please use WinRad to listen this files)
Helpful for Kits:PMSDR2.12 high resolution image & Mod's for PMSDR2.11 SWITCH Board plug-in NEW: PMSDR Application examples (also as PDF)
- 02/10/2009: New PMSDR_CONTROL 1.3 Release with support for Tmate tuning knob
QUICK OVERVIEW The PMSDR is a small, low-cost, HF bands full coverage "Software Defined Radio" receiver that use a computer USB port and delivers I-Q audio signals to the PC's sound card. It was designed by Martin Pernter IW3AUT and it's similar to the "SOFTROCK XTALL project", but with many more features. This way a great many hams can listening all shortwave bands that can be achieved by having just a low cost hardware working with the powerful (free) software WinRad, written by Alberto I2PHD and now also with PowerSDR-IQ and SDR-SHELL (for Linux) on the PC. A powerful DLL Interface provide many options to interface the PMSDR to other software and/or transceivers. There are also WinRadHD (by DG0JBJ), a special version of WinRad V1.32 optimized for Netbooks.
System Interfaces Block Diagram
- continuously tuning the entire HF-spectrum (standard tuning range: 0,1 - 55 Mhz)
- First test results: (Test Setup :Signal Generator HP8640B , Soundcard Creative Xtreme 24bit , Software WinRad 1.32)
sensivity-MDS (with inserted preselection filter ), (2400 Hz bandwidth) with (S+N)/N= 3dB, without any preamplifier :
-120dBm @400kHz
-120dBm @1MHz
-120,5dBm @3,5MHz
-120dBm @7MHz
-119,5dBm @28MHz
-119,5dBm @52MHz
-118dBm @78MHz
-SFDR = 85dB (This value can be different with other Soundcards and PC's) Screenshoot with -20dBm input level , Signal Generator HP8640B-Filter 1 insertion loss: 1dB @3,7MHz
-Filter 2 insertion loss: 1,8dB @7MHz
-Filter 3 insertion loss: 1,5dB @21MHz
-LPF-Filter insertion loss: 0,7dB @1MHz- IF amplifier output clipping level: 2,45Vp @ -13dBm RF input level
- IF (I and Q output signal) bandwidth: 155 kHz @ -6dB
- Power supply : 5V / 155mA (+15mA with LCD module)
- USB2.0 interface, only USB powered (no external supply are required)
- high speed divider/clock generator CYPRESS CY22393/4 (for the tuning range: 0,1 - 2,5 Mhz)
- new low jitter clock generator SILICON LABS Si570 LVDS (or CMOS)
- interface for optional LCD
- interface for optional boards (transmitter, preselector ecc.)
- 3 Bandpass filter on board + 1 Lowpass filter on board + filter bypass (broadband input)
- IF-Chain with rail-to-rail OP-AMPS for 5V
- I/Q outputs for PC Sound card
- I/Q optional differential outputs for professional PC Sound cards
- PIC18F4550 Controller with USB-Bootloader
- DLL support trough USB interface for Winrad by I2PHD & PowerSDR-IQ
- PCB: dual layer, 80 x 100mm
HARDWARE PM-SDR Hardware Block Diagram
The PM-SDR Receiver is a 80 x 100mm circuit board that use the PC's USB port (for control and 5V power).
Availability:
A preassembled kit and more are available on RF-SYSTEM 's webshop.
For other questions please send me an email.
Thanks!
The printed circuit boards design and firmware of the projects on this page are under copyright and remains property of the RF System.
All, except external linked, Material and concepts presented on the PM-SDR website is under Copyright
These pages are designed and maintained by Martin Pernter,
