frequ. change
#2
frequ. change
The FCC has a law against changing the frequency of a transmitter except when performed by an authorized service center. It may need to be retuned to the new frequency.
#4
frequ. change
You can send just the module if you wish, that is not a problem. The cost would be around a unit of labor, which is $7.50 plus shipping if you already have the crystal. Our turn around time is around 4 to 5 days right now or less.