Frequency change. but how

Discussion about this major DATV Project. See https://wiki.batc.org.uk/The_Portsdown_Transmitter
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PA3AOD
Posts: 5
Joined: Sat Jun 05, 2021 3:12 pm

Frequency change. but how

Post by PA3AOD » Sat Jun 05, 2021 3:51 pm

I all

Just finished building my Portsdown-4, but one software issue remains (till now....)
Is it possible to change the TX frequency as seen in the "Transmit Frequency Selection Menu (10)"?
I use a upconverter voor the NB and WB, so i want to change my Tx frequency permanently (with a offset of 1100MHz).
(I know that the Pluto or Lime can generate a signal at 2400MHz)
I could not find a menu in the Portsdown to change it also did not find it at the Wiki, Forum pages or in one of the CQ-TV magazines (or did i not search good enough?)

73,
Bert PA3AOD

G8GKQ
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Re: Frequency change. but how

Post by G8GKQ » Sat Jun 05, 2021 8:02 pm

Hi Bert

You can change the frequencies on the lower 9 buttons on Menu 10, but not the top 10 QO-100 buttons.

The change the lower 9 buttons, go to Menu 3, Set Preset Freqs.

The upper 10 buttons are hard coded. You would need to re-write the touchscreen program and recompile to change the upper 10 buttons.

Dave, G8GKQ

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