TX Disable

TX Disable a standard feature in certain MOTOTRBO radios. This feature prevents a radio from accidentally transmitting. When enabled by the user, all LMR RF TX functionality is lost, with the exception of Bluetooth and Wi-Fi.

This feature is useful in combat situations where radio-silence must be observed or in situations where the RF could set-off some event due to EMF. In the case of the former, the adversary could use things like Radio Check; Location requests or Remote Monitor to get a targeted radio to transmit. These transmissions would allow them to find the radio's location using RDF techniques.

When turned on, all other functionality remains unchanged. The user will receive a bonk tone when pressing PTT while TX Disable is turned on.

Models Supported

Authenticated Remote Monitor is standard in all ION; SL4010e; DP3xx1e; DP4000e and DM4000e series models shipped in EMEA after November 2019. Prior to this date, a SL4010e; DP3xx1e; DP4000e or DM4000e will need a CfS License. The same is true for the non-e SL4000; DP3xx1; DP4000 and DM4000 series. Authenticated Radio Disable is not available on lower tiered models (e.g. DP2400) or the first generation.