I have run a remote base (not just receiving) for many years and prefer a very boring, non-state-of-the-art approach of simply controlling a radio remotely and feeding the audio back over landline telephone (Plain Old Telephone Service or POTS), not VOIP. I have found that this limits latency to something like 50 ms and the audio is relatively high fidelity because the standard 56k codex is quite good, compared to any kind of VOIP, which is optimized for, guess what, voice, not weak signal CW. In general, you cannot get this kind of latency over the internet, and if you could, it would require BOTH the remote internet and the control point internet to have low latency. That is only going to work if you always use the same control point. The truly remote sites are less likely to have internet, but might still have phone service. If necessary, you can use a dialup modem on a second phone line to control the radio and antenna switches. (I remotely select beverages, etc.). The impact of latency will depend on the situation. In contests and big pileups, long latency can be really limiting. For me, POTS is the optimum approach, superior to newer methods. (Unless you have line of sight for a UHF link, then you could consider the remote SDR idea, but it will take a lot more work to set it up).
Rick N6RK _______________________________________________ Topband reflector - [email protected]
