ORIGINAL: mglavin
Hitec has a comparison of the Optic 6 against comparable radios on their website, see link below.
[link=http://hitecrcd.com/Radios/Optic%206%20comparison%20chart.htm]Optic 6 Comparison[/link]
The Spectra module is nice feature, but not required. If you plan on having multiple models with different RX frequencies or just changing out your RX crystal when in need it’s invaluable.
does it happen very often that you would have different frequencies? i will def have multiple planes... but i dont quite understand the rx freq. thing. just like sub channels of 72mhz? and how does it go about distinguishing them? would it interfer with another plane thats around it?
whats the diff between fm and pcm? pros/cons?