[hpsdr] Help with Mic input on Penny

[Dan Babcock]

Hi Richard and Tim,

The microphone jumper settings must be configured to match the configuration of your microphone plug.  When the Penelope boards were tested the jumpers were configured for a non-biased microphone with the microphone input on the tip and the PTT on the ring of the plug.  The jumper configuration shouid have been in that configuration when you received your Penelope.

A comprehensive explanation of alternative settings for different microphone configurations is shown on pages 5 and 6 of the Penelope Manual, Rev. 1.2.  

Hope this helps.

73,

Dan N4XWE




________________________________
From: Richard Ames <richard at ames.id.au>
To: Tim O'Rourke <w4yn at arrl.net>
Cc: HPSDR list <hpsdr at lists.openhpsdr.org>
Sent: Saturday, July 4, 2009 10:09:16 PM
Subject: Re: [hpsdr] Help with Mic input on Penny

***** High Performance Software Defined Radio Discussion List *****

Tim -

I have the same problem .....

All seems normal but no mic response --- I know the mic(s) are working
and it does CW correctly....

Any hints from your trials???  anybody else with suggestions??

Thanks, Richard. VK2NRA

On Sat, 2009-04-11 at 14:29 -0400, Tim O'Rourke wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Do final setup on Penny, tune works FB but no output from Mic.
> I get a claen signal from mic input to pin 18 on U10 and continunity from pin 6 on U10 to pin 160 on FPGA. I am probably missing something but am stumped. I have fed in a 1500 Hz signal in on mic input and varied amplitude from 1-20 mv and mic monitor in PWRSDR stays at -30 db.
> Latest firm ware on Penny and Mercury and latest PWRSDR release from SVN.
> Any ideas on what to check next appreciated.
> Tim W4YN
> 
> Tim O'Rourke 
> W4YN at ARRL.Net
> Low Power Amateur Radio Rocks 
> Member of Flying Pigs,ARCI,GQRP,RSGB,ARRL Life Member
> NHRA Life Member
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