Hi Attila, > Could you also add just the option of a power splitter at the input?
I'm not really sure what the most appropriate RF interface is. I was planning to make another much simpler board with just a bias tee, a 3:1 splitter, and some hairpin microstrip filters. Then it would be three short SMA cables over to the main board. (Right now I just have a 2:1 splitter and I'm relying on the L1/L2 antenna for filtering.) Maybe it would make sense to integrate the splitter, filters, and bias tee at some point, since an auxiliary board is always more hassle, and the connectors and cables are expensive. One thing I didn't want to do is commit to any particular filter technology up front. Ceramic filters, and, worse, SAWs, have delays that vary with temperature (to say nothing of the large NRE costs involved). Microstrip filters would have a lower temperature coefficient I think, though they are not as sharp and have more loss. Cheers, Peter _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
