Re: Help me! annoying ticking in the audio

Raj vu2zap Member Profile All Messages By This Member #46754 Sergio, In many bitx40 there has been bad solder in L1, L2 or L3. Please check with multimeter and resolder if required. In some the TRIFILAR transformer also have solder problem and some winding shorts. Check everything fully. If you have an extra receiver in the shack, please listen 4.7-5.0 Mhz .. Dial bitx40 7.000 = 5.000 mhz on rx and bitx 7.1000 = 4.900 mhz on rx. You should hear carrier in your extra receiver. This is with original software. Raj toggle quoted message Show quoted text At 19/04/2018, you wrote: Thank you, you're so kind Now I will try to do what you suggested and visually check all the solderings on the cards. Unfortunately I do not have an oscilloscope I confirm that he receives nothing! Turning the tuning potentiometer, the QRM increases in two places. If I stop on one of these points and unplug the antenna, nothing changes! As if the antenna was not connected Thank you Sergio

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