I use the capacitor it good design practice to isolates the circuits
although it will not strip the pl or dpl. If I want to strip pl or dpl,
use a Communication Specialists Board. You can try removes their
audio cap and add jumpers. "Just kidding". Another consideration,
take a look at, pin 16, connector P904, on the IF/Audio Squelch Board;
RX PA. The audio is clean and de-emphasized.
JK
From: Robert Newberry <N1XBM@amsat.org>
To: Johnny Keeker <cypresstower@yahoo.com>
Sent: Wednesday, October 30, 2013 8:08 PM
Subject: Re: [App_rpt-users] Resistor divider
I just realized that the DSP should be able to strip PL off. At least I think it can.
Apparare Scientior
Paratus Communicare
-N1XBM
On Oct 30, 2013 6:44 PM, "Johnny Keeker" <
cypresstower@yahoo.com> wrote:
Robert;
You need to remove the sub audible tone when using vol hi,
but if your not concerned with hearing your ctcss tones,
use a 10uf cap off the vol hi through a series 10k to a 3.3k
to ground. Tap the audio where the 10k meets the 3.3k resistor.
Use a variable 5k pot in place of the 3.3k if you want to change
the levels or just change the 3.3k value....
JK
I need help, I am using a Mastr II and a URI. I want to use the vol/sql hi for my discriminator audio. I was going to use a resistor divider to pad down the audio.
Has anyone ever done this? Could you explain it in more detail to me. I've read you take the two resistors and put them in series. I would tap my URI in the middle where those two resistors meet. I assume one end goes to vol/sql hi, but where does the far end go?
Thanks for your help
Apparare Scientior
Paratus Communicare
-N1XBM
_______________________________________________
App_rpt-users mailing list
App_rpt-users@ohnosec.orghttp://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users