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Problem tunning at 40m


 
Edited

Dear all,
I have dete4cted one probolem i have working at 40m.
I have an LDG AT100ProII and IC7300. Always tuning with 10wats.
the tuner always tune at moment by the memories except at part of the band of 40m (part of ft4 and ft8). Some times it load the memory tunning settings and other ntimes start a new tunning cicle.
At the end always with the same LC configuration. If I set up the LDG manually by Cup/dwn and Lup/dwn it works ok as it will be.
The SWR is stable at this frequencies and it does not change and is not related with rain or cold/hot.
I have install ferrite cores to avoid rf returns but it still fault some times starting a new tune cicle with the same final LC setup....
PLs checked and changed if looked not so good and screws and connexions checked
Any idea??
At the other antenna connetion I have not notice this problem.and the only test to do now is to change ant1 by ant2 and work some days....

Do anybody any idea????
Or solution?
Or experience like this?

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