Good morning everyone,
I finished (for 99%) a project for my school, but i can't figure out one detail 😮 the concept is an automatic reactive jammer
- I receive the frequency of a PMR446 (walkie talkie CH1: 446.00625 MHz) but the USRP N210 measures a slight difference ( 446.00542 MHz), and it's everytime another value...
This is possible due to a calibration error.. But the error cannot be lineairly extrapolated to the other 7 channels ( a higher channel has a higher difference between measured and real frequency :s. How can i fix this? It just needs to transmit on the received frequency... 😕
my spectrum analyser also picks up a different frequency (see: "marker")
- the measured frequency is transferred to the next state ( transmit). But he doesn't always transmit ... when i use the transmit program seperately it works perfect.. i say to transmit 3 seconds but it doesn't do that either and it doesn't jam immediately 😕
I would be so extremely gratefull if someone could help me 🙂
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