BUMP

Cool guys! Thanks for all your input.

I am still unsure about bandwidth testing. I've heard this mentioned when I had some lessons but it was never really clear to me. I'm guessing it means that the radio is tested to make sure it is transmitting on the frequency band that is specified by the crystal. Is this generally a requirement when starting out at modelling clubs?

Based on my knowledge (3rd year electronics engineering student) a frequency drift significant enough to interfere with adjacent channels would indicate a faulty radio (oscilator crystals have pretty small tolerences these days) and therefore be the responsibility of the manufacturer to have it tested and corrected.

Cheers

dy