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TOPIC: External Ctrl in Software

External Ctrl in Software 31 Oct 2016 13:57 #1

  • la7tha
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External Ctrl in Software.
Would it be feasible to make some of the open collector usable for adjustable time sequencing?

1. PTT / KEY GND for amp make time delay adjustable from i.e. 0 to 50ms
2. Another open collector could be adjustable for Switching RX array OFF on TX
3. Another open collector for detune antenna / antenna out on resonance, typically done with using Vacuum relay ay antenna feed point

You can always purchase a time delay sequencing unit but why not have it in the software.
I guess the TX ON / OFF as available today is delay from i.e. TX on wait 20ms then the radio start to generate RF?.

73 Rune LA7THA
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External Ctrl in Software 01 Nov 2016 05:18 #2

  • VassiL
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Hello Rune,
The RX-to-TX, TX-to-RX delays for external PA PTT switching already working for the X8 open collector switch. You can find it at the Options-Device-TX-PTT switching delay.

Other EXT CTRL swithes doesn't have a sequencing. We will think, what we can do with it in futue releases. Firstly we should finish version 1.1.4.
Василий, Vasily,
Expert Electronics
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External Ctrl in Software 01 Nov 2016 13:57 #3

  • la7tha
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Hi VassiL

Thanks for quick reply. Yes i know about the TX/RX and open collector on pin 8. I using this today with my AMP.
However, i have many other devises that need switching in correct Sequence like: DX engenering phase controller, PRE AMP in my 9 circle array, another PA (KPA100), Vacum relay in TX antenna for 160 meter band to detune TX antenna on RX. TX antenna disturbe the 9 circle array beam patern if not detuned etc, Lets hope this will be implemented in a future release.

73 Rune LA7THA
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