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IFR-1900 Receive IF Module

This forum exists for the purposes for discussing service monitors (This includes but is not limited to Motorola, HP, Aeroflex, GD, etc). Additional topics allowed include test procedures, interpretation of test results, where to find information about specific tests, antenna VSWR, return loss testing, duplexer and filter alignment, etc.

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IFR-1900 Receive IF Module

Postby SuperLid » Fri Sep 07, 2018 2:55 am

I have an analyzer that exhibits low levels. The problem has been isolated to the RX IF block. With no schematics and no support from the manufacturer, I am on my own and going nowhere fast.

Anyone have experience troubleshooting this module at component level?


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Re: IFR-1900 Receive IF Module

Postby clemeth » Thu May 16, 2019 10:32 am

I have an IFR 1900CSA which had a blown RF Amp on the output of the RF Generator. So called MMIC RF amplifier got fried. Replaced it with a similar device from Mini Circuits and now I'm getting upwards of +10 dBm of signal out.

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