ok, moving on a bit, now we have the 80 ch radioes being used, also the old 40ch units as well, there are some possible problems until all 40 ch are junked. As I see it the two are not compatible ie. Poor comms between them as the transmit and receive frequencys are slightly different . This could cause some safety concerns in the bush with the different radioes.
please correct me on this if I am wrong.
When legally do the 40 ch have to be switched off permanently.?
For some of us the changeover is expensive as we have them in tractors, utes and our 4x4s as well as some hand helds, this will be a big bill!
Rob The channels 1 to 40 will remain the same so I don't think there will be a phasing out of 40 channel rigs except by natural attrition, ie as radio's clap out people will replace them with 80 channel rigs . Channels 41 to 80 have been squeezed in between the existing 40 channels meaning that the 25khz spacing has been reduced to 12.5khz. In urban areas this may very well lead to adjacent channel interference problems but too early to tell yet.