[Yaesu] FT890 strange behavior

[Roger (K8RI)]

On 7/10/2013 11:55 PM, Joe Subich, W4TV wrote:
>
> Sounds like common mode RF on the feedline is triggering the over-
> voltage protect (crowbar) in the power supply.  Were you on a
> different frequency/band than normal?
>
> Best thing you can do is install a common mode choke - see the info
> in the first article here: http://www.audiosystemsgroup.com/publish.htm
> Also read the articles on "Transmitting chokes."

My choice would be to pitch the Astron switching supply.  The old 
supplies work fine, but I've gone through a number of their switchers.

Common mode chokes may work, but I think it's a basic problem with the 
supply.

73

Roger (K8RI)


>
> 73,
>
>     ... Joe, W4TV
>