Hi,..i have separated the transmitter and receiver and implemented them on two different kits,...yes the antennas work from 400-450MHZ ,..but i have done communication at 262MHz through these antennas ans results were good,...now i wanted to ask that cani use the same receiver for fm reception too with the 88-108MHz antenna ,...like would i have to chage the filters etc

Hi, can anybody kindly suggest me from where i can get FM receiver (demodulator) models to implement on SFF SDR Development platform....please help Start a New Thread

Hi, can anybody kindly suggest me from where i can get FM receiver (demodulator) models to implement on SFF SDR Development platform....please help

I would suggest you to look at the tutorial of building FM receiver for GNU radio. While it is for a different platform but you can get alot of hints from there.
http://www.linuxjournal.com/article/7505

also check what frequency you need to operate at. the antennas shiped with Lyrtech kits are centered at 400MHz Start a New Thread

Hi, can anybody kindly suggest me from where i can get FM receiver (demodulator) models to implement on SFF SDR Development platform....please help

I understand that the Demo has a CTCSS encoding scheme so your problem is mainly the succesful removing of that encoding from the RX chain. Now I can provide you the following hints:

1- check a tutorial of building commercial FM receiver for GNU radio platform.
http://www.gnu.org/software/gnuradio/doc/exploring-gnuradio.html

Now I know it is different platform but hey it works and you must be able to get ALOT of hints from there.

2- can you hear anything at the receiver or it is a total noise? or you can hear some pattern or recognizable voice in the background?

3- which frequency or channel you are experimenting? remember that the provided antennas are centered at 400MHz!

4- Here is a tutoiral explains the FM example in more details:
http://www.linuxjournal.com/article/7505 Start a New Thread

Which platform are you after. Do you mean the one produced by Lyrtech? if so, they ship a number of demos with it. One of them is FRS demonstration which is basically an FM transceiver.

Hi, can anybody kindly suggest me from where i can get FM receiver (demodulator) models to implement on SFF SDR Development platform....please help Start a New Thread

Hi, can anybody kindly suggest me from where i can get FM receiver (demodulator) models to implement on SFF SDR Development platform....please help Start a New Thread