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Mode switching problem or normal operation ?

 
Edited

When I switch from CW mode to USB, The t/r relay momentarily energizes and releases and the relay on the blanking unit energizes and de-energizes.

When I switch from AM to CW it seems like the t/r? relay energizes and does not release but I can receive ok. when I switch back to AM, the relay de-energizes.

Is this normal operation or what should I look for.? FT301D

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