On 07/03/16 06:00, David McGough <kb4fxc@inttek.net>@ohnosec.org wrote:

Now comes a complex issue to handle--variable delay in the RF-to-audio conversion. If you're running a standard analog RX (like the GM300 mentioned), the delay through the radio is minimal and CONSISTENT between radios--ideal for voting receivers, etc. The SDR delay is large, perhaps as much as 0.5 seconds

Ah yeah that's no good then. Ah well, we keep fishing through new ideas for workable stuff! The site in question is plenty remote, but I'll still put a notch on the image, and on the local pager and FM radio station too, even though they are 10km away. It's no work at all to put a coax stub notch on something. Cheapie Baofengs with some coax bandpass/notch reject will do it, EXCEPT that the repeater is question is Six meters. Now looking for inexpensive 6m handhelds, or other RX boards. S