First of all, you are transmitting with 5 KHz of deviation, but when I look at your TX frequency, you are listening with a normal FM radio to it. This expects 75 KHz of deviation! Also your WBFM receive block expects more than 5 KHz.
Isn't there also a WBFM transmitting block? If available, this should be able to do what you want, I mean to remember the NBFM block is somehow limited in its maximum deviation. What does the resampler do? It gives your audio a pitch, is this intended? The multiply const block should also work, when being used at the place where now the resampler is. Ralph. From: discuss-gnuradio-bounces+ralph=schmid....@gnu.org [mailto:discuss-gnuradio-bounces+ralph=schmid....@gnu.org] On Behalf Of Santos Campos Sent: Monday, March 28, 2016 7:56 PM To: discuss-gnuradio@gnu.org Subject: [Discuss-gnuradio] Transmit volume very low Hello, all! Newer user here and even newer to the mailing list! I'm trying to transmit a short .wav file via a b200 board (usrp). Before I broadcast I was trying to hear what the audio would sound like after going through the block diagram and I ended up with the diagram attached. It "works" but the volume is very very low. Any ideas? Previously I'd just put a multiply const block right before the audio sink, but I want the sample to be already transmitting with a higher magnitude. Any help is much appreciated!
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