I would ask this another way. What has changed recently. It certainly sounds 
like the transmitter is at fault, but similar situations can arise in 
conditions local to your station. Have you changed your antennas? Has something 
changed in your antennas? Something in the feedline or antenna with diode 
action could cause a similar issue. This could be a discontinuity in a 
connection (rust, corrosion) or something similar that is causing mixing of two 
or more signals. Just disconnecting your antennas and listening with a short 
whip may not be good enough to find this since you are still interacting with 
the local issue.

You should take a 6m receiver out and listen to the band away from your 
station, so that you hear the transmitter without interaction of your antenna 
system. If you still hear the beacon problems, then the owner certainly needs 
to know they have an issue.

This can be a rough issue to resolve, both on your end and the transmitter 
side. So many factors may be involved that the issue gets very complex (such as 
a diode action on his side, caused by an issue in a local commercial 
transmitter). Good luck resolving it, but be aware that there will be a 
resolution.

- Jack, W6FB


> On Dec 16, 2017, at 8:46 AM, stengrevics <[email protected]> wrote:
> 
> I have a beacon a couple of miles from me that has recently begun to splatter
> all over the 6 meter band.  I've tried adjusting the noise blanker and that
> helps somewhat.  I also tried adjusting the filter width, and shifting the
> filter setting, with little result.
> 
> Anyone have any experience dealing wit this issue?  Would appreciate any
> suggestions for dealing with this.
> 
> 73,
> 
> John
> WA1EAZ
> 
> 
> 
> --
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