I looked in the mouser catalog and the digikey catalog and I cannot find a simple cheap RF module that can transmit an analog FM signal. The only one that I found is a 16 pin SSOP package which is too complicated. I'm just looking for something with the pins sticking out of a board, something like this: https://www.commlinx.com.au/tlp433a.htm, but FM and analog. Can anyone point me to a good one?
I looked in the mouser catalog and the digikey catalog and I cannot find a simple cheap RF module that can transmit an analog FM signal. The only one that I found is a 16 pin SSOP package which is too complicated. I'm just looking for something with the pins sticking out of a board, something like this: https://www.commlinx.com.au/tlp433a.htm, but FM and analog. Can anyone point me to a good one?
I looked in the mouser catalog and the digikey catalog and I cannot find a simple cheap RF module that can transmit an analog FM signal. The only one that I found is a 16 pin SSOP package which is too complicated. I'm just looking for something with the pins sticking out of a board, something like this: https://www.commlinx.com.au/tlp433a.htm, but FM and analog. Can anyone point me to a good one?
The licence free frequencies are generally 'data only', audio usage isn't allowed, so you probably can't buy them. Certainly in the UK this is so!.[/quote]
Well I did find that one in the digikey catalog that would transmit audio, but It's too complicated for my needs, so they're probably legal here in the US.
Well I did find that one in the digikey catalog that would transmit audio, but It's too complicated for my needs, so they're probably legal here in the US.
By complicated I mean it is a single chip, so it will most likely require external components, which complicates things and makes things bigger, I want something pre-built.
I found a transmitter with a "linear" input. I wonder if that's another word for analog?
By complicated I mean it is a single chip, so it will most likely require external components, which complicates things and makes things bigger, I want something pre-built.
I found a transmitter with a "linear" input. I wonder if that's another word for analog?
Russ, do you mean the cheap 88-108MHZ bug transmitters that I've made a gazillion of? I've found them to have too many problems. I want something that is going to be reliable.
C Crane company has several FM broadcast transmitters that you can digitally select the xmit frequency. They have a limited range about 50 feet so they qualify for the license free bands.
Their web site is www.ccrane.com
Typical models are #AFT and #FMT
Notice that those modules are on a different (much higher) frequency than the normal licence free ones, presumably audio is allowed on those frequencies, but NOT on the more common lower ones.