My holiday shack
A picture of my holiday shack!
Dual antenna hotspots
I've got two MMDVM hotspots with me here in the Spanish Pyrenees. One is a Jumbospot on a Pi Zero W and the other is a dual antenna hotspot on a Raspberry Pi B. When on the dual antenna hotspot I noticed that at the end of a QSO I could hear the last two seconds of my own voice when I de-keyed. I suspect, but haven't measured, that a dual antenna hotspot in duplex mode uses twice as much data to send an receive the QSO. So on holiday a simplex hotspot will use half the data during a QSO when compared to a dual antenna hotspot. I suspect the test will be to see what happens when only TG9 is running with no Internet connection. If I hear my own voice then the hotspot re-transmits the received signal rather than the stream if receives from the network the Brandmeister/Fusion server. Testing this is left as an exercise for the reader, I'm on holiday! ;-)
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