Can someone please tell me if there is a difference between a KO mars radio in 40mhz and a Mars in 41mhz.
I won a mars on ebay but it said its 41mhz and im wondering if 40mhz crystals will work in it.
Cheers
Nudge

I have used my Mars with a 40 meg module and 41 meg crystals for some time with no problems at all.

The problem comes in the form of the Tx module being tuned in a different section of the band and when you run outside the this, your radio can produce spurious emissions. This can result in you radio causing radio interference to others.
Not a nice feeling when you become the blame for problems like this.