NRVD service manual needed

[Jarek]

Hello  .
I need the NRVD  service manual and any information about calibration after replacing the battery.
Best regards

[coromonadalix]

Could you explain more   NRVD means nothing  for some people

[Jarek]

Of course I can .
This is Rohde & Schwarz Dual-Channel RF Power Meter  ̧

https://scdn.rohde-schwarz.com/ur/pws/dl_downloads/dl_common_library/dl_brochures_and_datasheets/pdf_1/NRVD_en.pdf

[coromonadalix]

http://manuals.repeater-builder.com/te-files/R&S/R&S%20NRVD%20Operating.pdf

you surely have this ??

[Jarek]

Thank you .
Yes, I have this manual. I am looking for a service manual.

Regards

[Jarek]

Hi
Does anyone have a program for calibrating NRVD - CAL_D.BAS ?

[timeandfrequency]

Hi Jarek,

I had the same problem with an NRVS (NRVS = 1/2  NRVD).
Battery empty = calibration lost.
Several R&S subsidaries no longer support these TE, so it's difficult to get them calibrated.
IMO, finding the cal soft won't be that easy, but of course, it's worth to give it a try.
You probably will have to send your unit to a cal service. Perhaps try to get in touch with those guys, to see if they can help you. They also have subsidaries in Austria and Hungary. Here's some information on the setup and workflow they use.

As you can see in the attached picture, my unit (last cal about 12 years ago) was off the ±1200 ppm spec for most of the AC ranges.
After calbration, the worst case error is now ±70 ppm. So I would say it was worth doing it. For my private use, it will suit me for the next ten years.

[Jarek]

Hi
The cost of calibration in R&S is about 400 Euro + shipping.
You can buy a calibrated used one for that amount.
I will try to do it myself, I already have some information on how to do it.
Regards