Fellow enthusiasts,
My FT-980 has a curious ailment and I'm hoping someone here can offer some guidance.
In order to communicate on, say, 3.595000MHz, I need to tune my rig such that the frequency display reads 3.595250MHz. Having listened to my own transmissions on a websdr station not far away, I've verified that the 250Hz offset produces a good signal on the desired 3.595000MHz.
Shifting to 40m, the offset appears to be 500Hz such that, to achieve comms on, say, 7.160000MHz,I need to set my display to 7.160500MHz.
On 20m, although I haven't verified quite as methodically as for 80m and 40m, it appears that I need to set my display frequency a whole 1kHz above my desired frequency.
That there appears to be a mathematical relationship in all of this, I suspect that some simple might need to be adjusted. But what, I don't know. For the record, there is no clarifier/RIT in play.
I know I can use the rig without trouble by remembering to dial higher, but I'd like to get the rig back into line as it is otherwise in mint condition. Any clues would be much appreciated.?
Thanks,
Mark
VK2MOH