Re: 2m rig Update

Steve McGrane <temporarilyoffline@...>

I got some time today (its raining!) to play with this.

Initially the script would run and not trip the PTT circuit.  So I re-wired the cable and after looking more closely, I don't even understand why it worked in the first place.  I think originally I had the speaker from the radio connected to the ground pin on the draws din6 connector???  maybe the ground is "noisy enough" that it got picked up elsewhere???

Here is my rewire:

Radio PTT   to DRAWS PTT
Radio GND   to DRAWS GND

(I'm guessing that a common ground would help out.  The DRAWS and the radio are plugged into the same power supply, so this could also be creating a loop)

And the results are that will trip the PTT, but will not stop PTTing.

The DRAWS will both send and receive APRS messages using XASTIR.  XASTIR repeats the "text message" several times and has the same "won't stop PTTing" problem.

So its progress... but it comes at a price.

1. Any ideas on the won't stop PTTing issue?
2. If you think I'm making a ground loop and shouldn't let me know.

- Steve

On Sat, May 25, 2019 at 8:19 PM Basil Gunn <basil@...> wrote:

To debug PTT issues:
Use the 'How to use' notes here:

Use left & right connector locations and either tune a second radio to
the same frequency as your test radio so you can hear the tone or watch
your radio to see if it transmits. If that doesn't work you have a cable


Steve McGrane <temporarilyoffline@...> writes:

> Follow-up to the cable issue.
> I've double checked the setup.  If I put the hand mic back in line and
> Press PTT, my receiving radio breaks squelch, so it would seem that the PTT
> circuit is not activating from DRAWS.
> I checked with Basil's notes and I've got PTT setup for 12 & 23.  For
> grins, I've reversed the GPIO numbers and cables such that I've hit all
> combos of l/r ports and 12/13 GPIOs. still no joy.
> Any thoughts?
> On Fri, May 24, 2019 at 7:25 PM Temporarily Offline <
> temporarilyoffline@...> wrote:
>> So far I can receive only.
>> I'm getting a little screwed up in the pin labeling and what side of the
>> cable I'm on.
>> What I have so far:
>> Cable from DRAWS w/end cut reveals
>> Pin 6 Green
>> Pin 5 Black
>> Pin 4 Orange
>> Pin 3 Yellow
>> Pin 2 Brown
>> Pin 1 Red
>> Radio uses an RJ-45 MIC cable and a speaker audio
>> Pin 1 N/C
>> Pin 2 DC 8V
>> Pin 3 GND
>> Pin 4 PTT
>> Pin 5 GND (MIC)
>> Pin 6 MIC
>> Pin 7 N/C
>> Pin 8 DTMF Data
>> Plus TRS on rear audio 1/8th jack
>> I have
>> DRAWS = Radio
>> 1 = 6
>> 2 = 5
>> 3 = 4
>> 4 = N/C
>> 5 = Rear Speaker TIP
>> 6 = N/C
>> GND = N/C
>> Any thoughts?
>> On Fri, May 24, 2019 at 6:47 PM David Lowry <huskyrunnr@...> wrote:
>>> Not sure if it is correct but is sure fills up my map.

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