[Hackrf-dev] Still hoping for PTT

[Gavin Jacobs]

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 <bernardkobier at tpg.com.au<mailto:bernardkobier at 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 <cjhicks at dadelus-engineering.com<mailto:cjhicks at 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-bounces at greatscottgadgets.com] On Behalf Of Gavin Jacobs
Sent: Saturday, June 09, 2018 5:57 PM
To: hackrf-dev at greatscottgadgets.com<mailto:hackrf-dev at 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

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