Figure 1: RX320D, by Ten Tec, with “homemade” serial gender changer. Click to enlarge
So, I’d been trying to obtain weather faxes, of the type transmitted by the shortwave weather transmitters run by the US Coast Guard, and do that by using the little Soft66 Lite SDR board. I’d added a preamp to that line-up in order to improve results, yet it seemed that improvement was needed still. So …
Figure 1: The DIP socket in the little SDR board is populated for a BPF.
New Orleans Coast Guard weather fax operates at 4.317 MHz, so it is far outside of the default (7 MHz) filter bandwidth of the little sidecar SDR. Currently, I have no bandpass switching arrangement in the sidecar, so I have to pull and insert different 16 pin dip sockets loaded with the correct components for the BPF for the frequency I’m using. Yes – that is a little inconvenient …
WB8LZR 