0
$\begingroup$

I want to test the performance of AM, FM and DAB radio in RTL-SDR. I want to measure sensitivity, adjacent channel selectivity, cross-modulation/blocking, and third-order intermodulation to be some of the metrics. From the ETSI document for broadcast sound receivers, it is found that to conduct these performance tests, I need 2 signal generators, 1 signal analyzer, and an RF combiner. Since I don't have much experience working with this equipment, I don't know which type of signal generator/combiner to buy (as there are so many types in the market).

Can someone provide me details on which equipment will be suitable for testing AM/FM/DAB?

$\endgroup$
  • $\begingroup$ what do you mean with "performance of AM, FM and DAB"? You can analyze the performance of a specific receiver, not of a broadcasting standard (that would be like saying you want to test the performance of "road network" in terms of speed, horse powers and gasoline usage). Could you elaborate on what thing you want to test for these properties? $\endgroup$ – Marcus Müller May 8 at 20:53
  • $\begingroup$ By performance, I mean sensitivity, channel selectivity, and intermodulation of AM/FM/DAB in RTL-SDR with the commercial radio tuner used in automobiles. The AM/FM/DAB tuner used in vehicles have used this ETSI document for broadcast receivers to evaluate their performance. I would like to do the same with an RTL-SDR or LimeSDR $\endgroup$ – user28 May 9 at 12:11
  • $\begingroup$ @user28 Tell me if I got it right: you need a recommendation for test equipment that would let you certify an RTL-SDR for compliance with that ETSI standard, when used as an AM, FM and/or DAB receiver. Is that correct? $\endgroup$ – MBaz May 9 at 13:00
  • $\begingroup$ Yes. You are right I need a recommendation for the test equipments. $\endgroup$ – user28 May 9 at 13:09
  • $\begingroup$ But an RTL-SDR is not a receiver for any of these standards on its own! It takes software to make it one. Hence, the S in SDR! So, you need to find out what software you want to use first, before you can think about getting measurement equipment. $\endgroup$ – Marcus Müller May 9 at 13:37

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.