I read the specs on the Tera, and what I've found is the thing is set up by default to scan when on channel 16. It is likely that it is in scan mode, and when you transmit, it will stop on whatever channel it was last going past. If you key up the Midland first, the Tera will stop on the frequency it hears, and stay there for a few seconds, thus you can then transmit back to the Midland. The frequency chart for the Tera does not line up with the Midland. Channels 1-7 will be the same, but on the Tera, when on channel 8 or above, you need to add 7 to the channel number to match the Midland. In other words, if the Tera is set to Channel 11, you will be on 462.625, which is channel 18 on the Midland. If you are trying to use channel 16 on the Midland, then set the Tera to channel 9, and you should be able to talk.