[TowerTalk] Broadcast Band AM Transmiiter Intererence on 160M

[charlie carroll]

Mike:
Back in November I measured an old DLW filter.  Unfortunately, I don't 
remember the specific numbers for BCB rejection.  The filter is down on 
Bonaire and I won't have access again until my trip in March.  I will 
say though that the rejection numbers were very similar to the filter 
shown at http://www.dlwc.com/.

At that time I also measured a Morgan (old ICE) M-402X and, as memory 
serves, the BCB rejection numbers were >60dB.  If you are pushed for 
time and really interested, I happen to have that filter right here and 
could run a set of numbers for you.

73 charlie, k1xx

On 1/30/2022 4:57 PM, Mike Ryan wrote:
>   There have to be dozens of readers here who have or HAVE HAD AM broadcast
> AM radio interference on 160m and even on 80m. I found some old
> contributions to the subject where the DLW filter was suggested. I have a
> friend who uses one by K7FP.  I wonder if anyone would care to share their
> experience here. I need to pick up something asap but before buying I just
> thought I would ask for feedback on actual experience with any brand or kind
> of filter.  By FAR my greatest offender is at 1420AM which is less than one
> mile from my qth.   Thanks.   - Mike, K4CVL
>
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