I use 985, 825 and 705 but I like to keep the same receiver frequency in all the cars I run. It is a real pain to keep changing the TX throughout the day and easy to cock it up in the heat of the moment. I've tried generic crystals and they work fine in the Hitec transmitter with Hitec receivers but they don't seem to work in the Sanwa and Novak receivers I also use hence the reason why I'm after genuine Hitec SC FM crystals which work in a host of different makes of receiver.
I now have multiple RX crystals in 985 and 825 so just need 705 to complete the set.
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