[Boatanchors] 390a noise

[Brian Clarke]

Hello John,

Probably leaky DC blocking capacitors feeding the mechanical filters. Next
phase in your discovery process is replacement of mechanical filters. Best
of luck finding them.

73 de Brian, VK2GCE

On Monday, 4 February 2019 8:47 AM, John said:


Twenty minutes after I turn on the 390a there is crackling noise coming 
from the speaker as if the antenna is not making a good connection 
making communication impossible. Have ruled out the antenna and 
feedline. Any suggestions?

john