Rohde & Schwarz URVD RF Millivoltmeter - Page 1
Forum section: electronics / rf-microwave

author: marcus
author_rank: Contributor
timestamp: January 26, 2019, 06:14:57 pm
content: Hello,i have a chance to get a "Rohde & Schwarz URVD RF Millivoltmeter" quite cheaply.But I could not find any information at all, besides a few eBay auctions.Does anyone have information about this unit? Is it similar to the NRVD?I appreciate any information.BestMarcus

author: nsrmagazin
author_rank: Regular Contributor
timestamp: January 27, 2019, 11:41:42 am
content: Do you mean this:https://www.rohde-schwarz.com/cz/product/urv55-productstartpage_63493-8503.html

author: marcus
author_rank: Contributor
timestamp: January 27, 2019, 11:49:17 am
content: Unfortunately no, this is the device i am looking for:https://i.ebayimg.com/images/g/GK0AAOSwJeZZst3Y/s-l1600.jpgIts really hard to find any information for this deviceBut thanks for your help.Marcus

author: marcus
author_rank: Contributor
timestamp: February 02, 2019, 12:07:12 pm
content: Hello everyone,i decided to take the risk and buy the URVD.After a little bit of testing and playing with my new gadget, there were no noticeable differences to NRVD.Both devices appear to be identical, beside the name.weird.Since URVDs appear to be cheaper than NRVDs it is worth buying them. (Current status, maybe someone will find differences!)BestMarcus

author: Radiosonde
author_rank: Contributor
timestamp: February 08, 2019, 06:08:29 pm
content: HiI also bought one cheaply a few weeks ago!After i bit of searching I found out that the U models are specialised for measuring voltage, the N models for measuring power.NRVS--->NRVDURV55-->URVDThe menu is a bit different...you have to enter the Watts mode via a different key..but you can switch from dbm to Volts directly on the front.The biggest differences are slightly changend weighting filter in some measurement modes...thats all.I got mine for 150 Euros delivered which is a very good price for a nearly NOS meter with covers...Bye

author: marcus
author_rank: Contributor
timestamp: February 08, 2019, 08:17:53 pm
content: Thanks Radiosonde for your reply, I can confirm the difference with measurement unit.Do you have a manual for this device, or did you found the Information about the weighting filters online?Congrats to you nice deal, i got mine for a similar price.Presumably from a polish seller?

author: Radiosonde
author_rank: Contributor
timestamp: February 10, 2019, 04:43:02 pm
content: HelloI just compared the datasheets of the NRVS-URV55...the NRVS has the same filters as the NRVD so I am sure that it is the same with URV55-URVD.It is very strange..you find absolutely no information about the URVD...nothing.Other Thing..do you have a sensors for sale or do you know where to buy some?On Ebay they are ridiculously expensive...Regards

author: marcus
author_rank: Contributor
timestamp: February 11, 2019, 07:30:43 am
content: You can get a URV5-Z2 (URY-Z2 is the same thing, presumably the military version) for reasonable (still expensive) prices.If you combine it with a dummyload you get a power sensor with a range from 1nW to 2W (-60 to +33dBm).The URV5-Z4 is the 100V version of the insertion head 100nW to 200W (only if your dummyload can handle the power).The dynamic range is not as good as with a proper power sensor, but its ok for most purposes.Still looking for a proper power sensor, if someone knows a source, please drop a message.BestMarcus

author: Bicurico
author_rank: Super Contributor
timestamp: February 11, 2019, 08:33:06 am
content: The sensors are more expensive than the unit. I could have bought a URV-55 for 130 Euro without the probes. But a Z2 or Z4 is not only had to find, the cheapest I saw on eBay were at around 200 Euro...Add both and its a lot of money...The probes are active - you can't just build one. They have an Eeprom with calibration data.Regards,Vitor