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Subject Topic: N.R.G PLL Pro Post ReplyPost New Topic
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dropfm
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Posted: 05 August 2015 at 3:53am | IP Logged Quote dropfm

Hi All, just joined as we are looking to get an FM signal out and have some
fun.
We have a N.G.R PLL pro. Issue we are having is getting the device to stay at
the preferred frequency.
It was working fine, but now we are consistently having to tune the device
and it only seems to stay in freq for about 5 minutes and then slowly fades
out. The Jumpers are set to 87.7 and even when the LOCK LED lights up, its
not quite good enough! What trouble shooting steps would you recommend
we take to try and alleviate th stray from our preferred freq?
Thanks heaps all!

Edited by dropfm on 05 August 2015 at 3:54am


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RadioTech
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Joined: 09 August 2004
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Posted: 01 September 2015 at 7:18pm | IP Logged Quote RadioTech

Hi Dropfm and welcome.

Sorry for the delayed reply but I don't always have time
to check here.
The PLL Pro is a good unit but they can be fussy to tune
and can have drift issues.
It's too difficult to explain here how to get them on
frequency and to lock reliably, and that of course
assumes the unit doesn't have a fault.
If it does then it would need to be repaired first,
which I can do.
There is a process to go through to get them on
frequency. It's not difficult, but helps if you've done
it before and to have test equipment such as a frequency
counter etc (which I do).
If you would like to discuss this
further, just PM me.

Edited by RadioTech on 01 September 2015 at 7:21pm
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dropfm
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Posted: 01 September 2015 at 7:47pm | IP Logged Quote dropfm

have pm'd you

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leslie
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Joined: 22 August 2015
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Posted: 01 September 2015 at 9:21pm | IP Logged Quote leslie

try looking at the power supply ie voltage but most of all
amperage you may need a bit mor grunt ie at least 2 amps
cheers
de zl3aja
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