Bernie That’s a great idea! I looked on the hackrf schematic and the signal for the TX LED is brought out to a (DNP) header - all I have todo is bring that signal out to my PTT circuit. Thanks for the suggestion!
Jake On Jun 15, 2018, at 5:32 AM, Bernard Kobier <bernardkob...@tpg.com.au<mailto:bernardkob...@tpg.com.au>> wrote: I admit I have not tried this but what about using the TX LED to drive an optocoupler to switch the amp? Bernie On 11 Jun 2018, at 00:53, CJ Hicks <cjhi...@dadelus-engineering.com<mailto:cjhi...@dadelus-engineering.com>> wrote: Why not leave your exciter on and only PTT your power amplifier (PA)? Or use an RF to shunt your exciter signal into a dummy load. Just a couple of random thoughts. CJH From: HackRF-dev [mailto:hackrf-dev-boun...@greatscottgadgets.com] On Behalf Of Gavin Jacobs Sent: Saturday, June 09, 2018 5:57 PM To: hackrf-dev@greatscottgadgets.com<mailto:hackrf-dev@greatscottgadgets.com> Subject: [Hackrf-dev] Still hoping for PTT Has there been any progress on implementing digital i/o from/to the hackrf One. I'm hoping that someday the hackrf can supply a PTT signal to an external amplifier. Jake _______________________________________________ HackRF-dev mailing list HackRF-dev@greatscottgadgets.com<mailto:HackRF-dev@greatscottgadgets.com> https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
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