Pira.cz Technical Forum

FM Analysis => P175 FM Analyzer => Topic started by: radiobel on June 16, 2014, 08:45:18 am

Title: problem p175 excursion 75khz
Post by: radiobel on June 16, 2014, 08:45:18 am
Hello, I have one p175 in version 1.3b, he(it) works perfectly.

And I have a new p175 in 1.4 rev3: with that this I have problems with the excursion75khz. She is totally false.
Originally he was in 1.4 and he haveit upgrade in 1.4 rev3 with the same problem.
Thank you and good day
Title: Re: problem p175 excursion 75khz
Post by: Jan on June 16, 2014, 09:06:28 am
I unfortunately have no idea what do you want to tell us. Please attach some pictures or anything that documents and explains your issue.

Any comparisons must be made under the same conditions and on the same station. It is guaranteed by principle of operation that normally there are no differences in deviation between different P175s.
Title: Re: problem p175 excursion 75khz
Post by: radiobel on June 16, 2014, 09:14:54 am
Sorry I use Reverso to translate. I am French.

The data to hold the 75khz are bad, it is too high while the transmitter is good réglé.le pira poster of the values of 110,120khz
Title: Re: problem p175 excursion 75khz
Post by: Jan on June 16, 2014, 09:23:18 am
How do you know that your transmitter is right? The other P175 shows 75 kHz on the same place and in the same time? Is this doing also on other stations?
Title: Re: problem p175 excursion 75khz
Post by: radiobel on June 16, 2014, 09:34:08 am
In the same conditions, the pira 1.3b is good and the other one is bad! And the transmitter is adjusted well! On other stations also!
Title: Re: problem p175 excursion 75khz
Post by: Jan on June 16, 2014, 09:56:37 am
OK, please contact us via email concerning details about sending the faulty unit to our servicing address. Based on the information provided I was able to find only your order for the first (good) unit from July 2011. Please help me to find the second order (order number, recipient's name or similar details).
Title: Re: problem p175 excursion 75khz
Post by: radiobel on June 16, 2014, 10:07:33 am
I contact you by e-mail. Thank you.
Title: Re: problem p175 excursion 75khz
Post by: gérald on July 07, 2014, 01:13:36 pm
Here is we found the technical problem: it was about a modification brought by the old owner. The pira was not in question.
He works now perfectly.
Thank you  for your help.