Re: Over-Driven FT-8 QRM #FT8 QRM #FT8
Single-tone modulation shouldn't produce inter-mod products, but some of the FT8 signals behave that way as if there were 2-tones in play. Could you elaborate on aggressive tone switching and it's effect?
On 9/22/2019 12:15 PM, Graham wrote:
Its only single tone , no intermod products , don't matter where the alc is set, that's harmonics , due to the aggressive tone switching , mfsk produces a similar set of sidebands , but not as bad ,, wspr2 makes the same , but the rate is slow, so no one notices ..interesting arrl have issued a statement , stating its not compatible with there data award's ?