The 23cms aerial switching is now working correctly - however, despite much effort to ensure the correct panel is switched in with the correct code, it looks like it's not quite right yet as it goes anti clockwise rather than clockwise :-)
The selection is done with DTMF either on 432.750 or the Skype input and a single aerial or multiple aerials can be selected at the same time by entering more than 1 DTMF code.
All selections can be cancelled by entering *50# which returns it to using all 4 aerials. Similarly any selection will automatically time out after 30 minutes and the rx will go back to using all 4 aerials.
The codes are as follows:
|*50#||Cancels all selected aerials|
|*51#|| Selects North aerial|
|*52#|| Cancels North aerial|
|*53#|| Selects West aerial|
|*54#|| Cancels West aerial|
|*55#|| Selects South aerial|
|*56#|| Cancels South aerial|
|*57#|| Selects East aerial|
|*58#|| Cancels East aerial|
For example, the best selection for these stations is as follows:
G8DGR = NNW = *51# PLUS *53#
G8GTZ = WNW = *53#
G8CKN = SW = *53#
There is definitely improvement when selecting a single panel over all 4 panels but feed back on performance and directivity is welcome.
Automatic selection and also a web interface will follow once the basic system is tamed and probably after work to improve 70cms rx performance.