Remote RX SWL box for OE2CRM
This is custom IP controlled switch box for Christoph OE2CRM. It allows him to switch RX antennas for his SDR RXs for MW and Tropical band SWL. Please visit his web for more and very interesting info!
- Remote controled RX antennas switch with BPF / ATT / Preamp
- Used parts
- MW Low Path Filter cut off frequency abt 1,8 MHz
- Tropical band BPF 4,5 to 5,5 MHz
- ATT 10dB
- Preamplifier with 2N5109 with more than 16dB gain
- Common mode current choke with attenuation more than 30dB
- RX line protection with diodes, PTC and neon lamps
- Please visit Christoph's blog
LPF LF band
Preamp MF filter
Preamp 5MHz BPF
|Manual IP Switch||web|
|9 RX antennas switch||Schematic||Board||ZIP141|
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