Discriminator outputs
 

Hello All:

I'm having a bit of a dilemma WRT a recent discriminator mod to my
PRO-2006. I've dona a lot of research and looked at it a lot.
So i install a .22uF capacitor to test point 2 and feed that to the
center conductor of a shielded cable to an earphone jack i install
in the rear of the chassis.
So i plug my handy audio cable into the new output and hear absolutely
squat. I mean nothing. As far as i know, yes the output is very
quiet, but even on active channels, there is nothing coming through.
And as an added "feature", the radio now will not scan programmed
channels,each channel has to be gone through one-at-a-friggin-time.
as well, the only way i can get the radio to scann through programmed
channels, is to reset each and every programmed freq into WFM.It's the
only way i can scann through the banks and the squelch will work.

Does ANYONE out there in scanner-land have any thoughts or
reccomendations on this?? I'm really perplexed by this one..........


Mike

A capacitor will not isolate the discriminator output as you found out. If
you unplug the audio cable does the radio then function normally? What does
this audio cable connect the radio to?

"CROTALUS7" wrote in message
...
Hello All:

I'm having a bit of a dilemma WRT a recent discriminator mod to my
PRO-2006. I've dona a lot of research and looked at it a lot.
So i install a .22uF capacitor to test point 2 and feed that to the
center conductor of a shielded cable to an earphone jack i install
in the rear of the chassis.
So i plug my handy audio cable into the new output and hear absolutely
squat. I mean nothing. As far as i know, yes the output is very
quiet, but even on active channels, there is nothing coming through.
And as an added "feature", the radio now will not scan programmed
channels,each channel has to be gone through one-at-a-friggin-time.
as well, the only way i can get the radio to scann through programmed
channels, is to reset each and every programmed freq into WFM.It's the
only way i can scann through the banks and the squelch will work.

Does ANYONE out there in scanner-land have any thoughts or
reccomendations on this?? I'm really perplexed by this one..........


Mike

"CROTALUS7" wrote in message
...
If i unplug the audio cable from the radio, the radio remaing acting the
same. I can't explain it at all. The audio cable connects to my PC on
which i run apps like CoolEdit Pro etc...

Mike


Then you have a shorted cable or an incorrectly wired jack. Use an Ohmmeter
to check.

If i unplug the audio cable from the radio, the radio remaing acting the
same. I can't explain it at all. The audio cable connects to my PC on
which i run apps like CoolEdit Pro etc...

Mike

Frank346 wrote:
A capacitor will not isolate the discriminator output as you found out. If
you unplug the audio cable does the radio then function normally? What does
this audio cable connect the radio to?

"CROTALUS7" wrote in message
...

Hello All:

I'm having a bit of a dilemma WRT a recent discriminator mod to my
PRO-2006. I've dona a lot of research and looked at it a lot.
So i install a .22uF capacitor to test point 2 and feed that to the
center conductor of a shielded cable to an earphone jack i install
in the rear of the chassis.
So i plug my handy audio cable into the new output and hear absolutely
squat. I mean nothing. As far as i know, yes the output is very
quiet, but even on active channels, there is nothing coming through.
And as an added "feature", the radio now will not scan programmed
channels,each channel has to be gone through one-at-a-friggin-time.
as well, the only way i can get the radio to scann through programmed
channels, is to reset each and every programmed freq into WFM.It's the
only way i can scann through the banks and the squelch will work.

Does ANYONE out there in scanner-land have any thoughts or
reccomendations on this?? I'm really perplexed by this one..........


Mike

Ok, i'll try it. Do you think that the 2.2 Cap is an issue as well??


Mike


Frank346 wrote:
"CROTALUS7" wrote in message
...

If i unplug the audio cable from the radio, the radio remaing acting the
same. I can't explain it at all. The audio cable connects to my PC on
which i run apps like CoolEdit Pro etc...

Mike



Then you have a shorted cable or an incorrectly wired jack. Use an Ohmmeter
to check.

"CROTALUS7" wrote in message
...
Ok, i'll try it. Do you think that the 2.2 Cap is an issue as well??


Mike

The capacitor is useless but shouldn't cause the problems you are having.

For more info look at

http://home.hvc.rr.com/bpetrow/discrim.txt

try this link http://www.mods.dk/view.php?ArticleId=2352

Thanks Frank:
I guess that i'll have to work on this. It's very srange i have to
admit.Up until this time i've never had an issue with the radio....
Hmmm makes me wonder


Mike


Frank346 wrote:
"CROTALUS7" wrote in message
...

Ok, i'll try it. Do you think that the 2.2 Cap is an issue as well??


Mike


The capacitor is useless but shouldn't cause the problems you are having.

For more info look at

http://home.hvc.rr.com/bpetrow/discrim.txt