It looks like you're new here. If you want to get involved, click one of these buttons!
Configuration and Operation
Installation, Antennas and Interference
WSPR, wsprdaemon, kiwirecorder
Problems and Issues
Problems Now Fixed
Also in Russia.
Please add a wideband FM.
I want to publish FM broadcasts.
I don't think it is possible with the kiwiSDR without redesigning the whole receiver, is it? The stock kiwiSDR has 12 kHz information bandwidth, the 3 rx version can do 20 kHz in each channel. If you want true wideband FM, you need an information bandwidth on the order of 200 kHz. As far as I know, this simply is not available.
Wide FM gives up.
I think your best option is to use Openwebrx running on a Raspberry Pi with something like an Airspy or SDR Play.
Martin - G8JNJ
edited December 2019
The Kiwi was designed to be a shortwave receiver. Wideband FM is not part of that design.
The only way to possibly do it is to add a WBFM demodulator to the FPGA so that only audio is being moved across the serial interface to the Beagle. But that also means adding passband filtering to the FPGA. And for the RX4WF4 configuration at least there is no room on the FPGA for that.
That is sooo cool. (The russian setup) as its exactly what I was trying to do before my converter died on the first weekend. Only difference is I can pick up literally 100 different channels being used at any one time in this area.
What hardware are you using to do this?
I have been wondering if I could use something like this MixNV, to downconvert and send the airband to the KiwiSDR.
I think it may work...
Also, thanks for the GREAT diagram of your hardware setup. Makes perfect sense (and I wish I had the Leader LG3236)!
There is an affordable SG and Mixer.
There is a similar system in Russia.
Damn .. thats nice. The area I'm in has so much air traffic and so many channels I can pick up I'd literally have 100 bookmarks on the page. An aviation enthusiasts dream. I was picking up aircraft 250nm away. Damn converter died on the first weekend, sent it back for repair they said it was fixed .. nope. I gave up. Tested everything. I need to find a reliable downconverter.
That LG3236 is a signal generator right? So it can take signals and up/downconvert whatever you want on the fly?
There is no problem if you have BPF, LNA, Mixer and SG.
That's a fine setup! Without the signal gen, a TCXO - derived osc should work well. We should see more VHF / UHF / Microwave conversions out there.
Forum Software Powered by Vanilla