[hpsdr] Penelope MIC input

[Ramakrishnan Muthukrishnan]

(sorry the reply went directly to Bryan, so summarizing here)

Thanks for the reply, Bryan. I don't see mic options on powersdr mrx ps - v3.4.9 (3/19/18)

Screenshot is larger than 12KB, the limit of message size for the list, so not attaching it.

73
Ram VU3RDD

On Sat, Jan 29, 2022, at 3:38 PM, Bryan Rambo wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> How about your setting under:
> Setup -> General -> H/W Select -> Hardware Options -> Mic
> There you can choose Tip vs Ring.
>
> 73, Bryan W4WMT
>
> -----Original Message-----
> From: Hpsdr <hpsdr-bounces at lists.openhpsdr.org> On Behalf Of 
> Ramakrishnan Muthukrishnan
> Sent: Saturday, January 29, 2022 4:28 AM
> To: HPSDR <hpsdr at openhpsdr.org>
> Subject: [hpsdr] Penelope MIC input
>
> ***** High Performance Software Defined Radio Discussion List *****
>
> Hello HPSDR Hackers,
>
> I have been using HPSDR (Merc/Penny/Metis ..) for a while now and since 
> I did not have a good mic, so far I have been using microphone via PC 
> sound card/VAC. For some reasons (most likely some windows update), the 
> mic stopped working a few months ago and since I was more interested in 
> CW and digital modes, I did not bother much. 
>
> I recently got a collar mic online and since it didn't come with any 
> documentation, I tried all +v/AUD jumper combinations (ie. with and 
> without bias, tip or ring). No luck! It didn't work, no output on 
> transmit. PowerSDR doesn't show anything while transmitting. 
>
> Today, I got hold of an electret mic from my junk box and wired it to 
> be given bias on the ring, no ptt (use space bar with PowerSDR), 
> nothing connected to tip, PTT/mic common connected to sleeve. Again no 
> luck. The PowerSDR is configured to take mic input (there are two 
> possibilities in powersdr, mic or linein, I chose mic). I left the 
> default min/max gain etc as it is. VAC is not enabled. Is there any 
> other settings to be taken care of? 
>
> Next I will check if bias is coming on the mic when ptt (space bar) is 
> pressed. Could it be that the AIC23B chip has an issue? Has anyone else 
> faced similar issues? Is there any other PowerSDR setting I need to 
> take care of? I could not find anything relevant.. 
>
> Thanks
> -- 
>   Ramakrishnan
>   VU3RDD