[RFI] ADSL2 RFI

[HP]

Are there any ADSL2 gurus on this reflector -- I have carriers every 4 khz 160/80/40 
and obviously three modems causing it as I can null any one of them at a time 
(they are a few cycles apart and can see them separately with P3 scan at 2 khz.) 
Worst case after I have transmitted so the system brings all modems up to max 
the levels on 160 are -80 -90 dBm and sometimes as much as -70 dBm. on 160. 

BUT several evenings about 10 PM local I have seen another set of carriers again 
spaced 4 khz but between the original set -noise level will also rise about 5 dB before 
a beep and the carriers appear then only on for a few seconds and all goes away and that 
may repeat three or four times in an hour or so. I have audio recordings but hard to catch 
a P3 screen grab. 

So anybody know are the ADSL/VDSL systems looking at doubling the number of carriers ??? 

This is a Centurylink system in Phoenix , Az. 

I wish when ARRL proclaimed that ADSL/VDSL was not going to be a problem in Phoenix 
that they had checked where there were overhead lines not just buried. 

Hank K7HP