Topband: ADSL line "mute" when TX on 160

Paul Kelley N1BUG paul.kelley.n1bug at
Mon Oct 22 07:52:03 EDT 2007

Rune Øye wrote:
> When I tune up my amp on 160 and around 300-400 watts output, I
> get problem with my DSL (ADSL) modem
> Stop working /sync problems.

Hi Rune,

I have the same problem since I got DSL two years ago. Everything is 
OK on 3.5 MHz and all higher bands, but even a few watts on 160m 
causes the modem to lose sync.

I tried winding all cables to the modem and router on ferrties, but 
it made no improvement.

I believe it should be possible to make a low pass filter, because 
the maximum frequency used by my ADSL is 1.1 MHz. I still want to 
make one, but I am not the person to design it.

If you find a solution, I think many of us will be interested.

Paul N1BUG

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