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T7F | T7F-TNC | P40F | R2FX | XV6 |
Weather Satellite Receiver with Antenna Diversity, R2FX |
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| The R2FX receiver is designed for the for the reception of
polar orbiting weather satellites which transmits in the 137MHz band.
It has six memory channels which are programmed to the currently
active satellite frequencies. You can select the channels manually by a key or let
the receiver scan automatically over the frequencies until it finds a satellite signal. The receiver can be fully controlled through a RS232 interface as well. |
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| The receiver has an excellent sensitivity which normally allows
operation without an additional pre-amplifier. Matched filters and a highly
linear demodulator provide optimum image quality, even with weak signals. An AFC
circuit compensates for Doppler frequency shifts. A novel feature is the ability of the R2FX to utilise two antennas simultaneously: the receiver polls the antennas constantly and selects the stronger signal. This mechanism know from mobil radio as antenna diversity provides image reception free from drop-outs caused by multi path propagation. |
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| Technical specifications | |
| Frequency range | 134 ... 139 MHz |
| Memory channels | 6 |
| Sensitivity | 0,22µV at 20dB S/S+N (SINAD) |
| AFC tuning range | ±9kHz |
| Power supply | 5V-12V, 50mA |
| Size | 113x85x31mm |
| Sope of delivery | Receiver as shown, mains adapter (not all country versions),
conection cable for sound card, 10 pages manual, decoder software
WxtoImg from Craig Anderson and SATSIGNAL from David Taylor,
remote control tool |
| Price, ready-made unit |
179,-€ |
| Currently there is no
kit available. Anyway you will find a construction manual (in German) |
Manual /English |
| here | Handbuch /Deutsch |
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| Sample picture from NOAA15,
decoded with SatSignal (click to enlarge, 700k) |