First, let me describe what I'm trying to do. I have a frequency hopping transmitter (not my design) that switches between approximately 910MHZ, 915MHZ, and 920MHZ. My receiver searches for one of these frequencies, then locks onto the frequency sequence.
I have setup two additional transmitters that will transmit on two of the three frequencies shown above. The transmitters are setup to continuously transmit on it's frequency with the intention of creating interference on a selected channel to test receiver response to a channel that has interference.
My problem is that it appears as if it's harder than expected to create interference on a channel. That is, even with the interfering transmitter continuously blasting away on the same frequency, my receiver picks out the data from the "good" transmitter just fine.
Spectrum analyzer screen snapshots are attached with show the interfering transmitter by itself, and interfering transmitter along with the good data transmitter.
How can I create interference on a channel so the receiver can't receive it (properly).
