If there is an active TG 1000 transmitter on the channel/frequency, please turn it off. If, despite the transmitter being turned off, an RF level is displayed for antenna A or B, that means that there is interference on the frequency currently being used. For a more accurate display, open the "RF Meter" function in the receiver menu. The RF level of both channels is displayed in high resolution.
If the TG 1000 receivers are in the network and you have access to the Chameleon software, you can also run a frequency scan in the required range in order to identify jamming devices.