Hello every one,
I’m working on a college level project to show interoperability between
and VHF radio using GNU radio.
My aims are listed below:
To obtain FM transmitter and receiver waveform in GNU radio as
flowgraph, so that i can communicate between laptop and VHF radio (In my
case I’m using radio of the range 30-89.899 MHz) :- This I have already
To obtain AM transmitter and receiver waveform in GNu radio as
flowgraph, so that I can communicate between laptop and HF radio (In my
case I’m using a HF radio of the range 3-30 MHz) :- I was able to
download a SSB receiver and it is functional but the noise level is
To integrate Fm transmitter with AM receiver, so that one way
communicaton is possible from HF radio to VHF radio. :- This I have
achieved, but with too much of noise and low pitch voice.
To integrate AM transmitter with FM receiver so that one way
communication is possible from VHF radio to HF radio. I’m still lackung
behind in this.
To integrate both the 3rd and 4rth flowgraphs in a single flowgraph
make Hf and VHF radio interoperable from both sides.
My GNU version is 22.214.171.124, I’m using two usrp’s 1 for the HF with
and lfrx daughter boards and the other for VHF with basic trans and
receive daughter cards.Also I’m using dipole antenna.
&0 Please guide me. I’m here attaching some .grc file I have downloaded,
and which are working in my GNU, but noisy( only ssb_rx is noisy and
is not working)