Canadian Broadband → Re: RF Choking (on the WAN side)

About using the lower spectrum, i bet it would be nice to read
TakeTheFifth about it. As you know, the TP-Link TD-8841 (A)
allows its owner to deallocate bins and i read recently that this
might have a similar effect than RF Choking...

And perhaps without the negative (side-)effects of RF choking on the high-end RF-signal being choked.

(RF-choking of RF-signals to combat RF-noise seems like radiation therapy trying to kill the disease faster than the host. )

Can you resync get your line stats.
Then put a normal phone cable (no RF chokes) just on the power. and resync.

I have a feeling the ST516 Power is whats causing a few of the gaps. If RF choking cleans them up, it would be a no brainer to do one very modem

Hi TilHasBB,

I guess you may not have noticed this but the ST546v6 records
made using 'DMT v7.35' are over one year and a half old as it
was done during the 2007-2008 winter. My phone-line has some
different characteristics now because i've moved to another city
one year ago (in July 2008). My measuring method has changed
as well since i no longer trust single 'DMT' readings, even if there
was only one "reset" event as displayed on additional captures.

This month's records show that the Error Rate counter doesn't
represent the situation accurately at all times. For example, the
evening of July 10 was real "quiet" while the early morning of
July 9 proved to be extremely "noisy". The same is true of my DS
SNR Margin level which varied somewhere between 4 and 7.5 dB.

Consequently, it seemed to me that one reasonable solution was
to use six-days "averaged" curves for my late comparison. It's a
time-consuming process but i no longer have to worry because
of marginal events which might corrupt my captures otherwise.



If i follow that same logic, the 'DMT' spectral response shown
in a capture will vary as a function of the date and time when
it was taken. This could give rise to a stimulating project but
the SpreadSheet averaging work involved can be overwhelming.

I'm inclosing a 'DMT' capture of my un-tweaked GNet BB0060B,
i put it on-line around 20:30 last night and looking at it you'll
see what i mean by "variations": it's like i've moved elsewhere!

I'm now trying to imagine a way to shield my damned drop-line,
actually: it seems it keeps degrading while i keep cleaning it up!



In any case, to answer your questions, there's an RF Choke on
every transformer used by my MoDems already. There's a strong
AM station around here (CHRC 800 KHz), i'll try to find out if RF
Choking as a significant effect on the corresponding bins...

...stay tuned...

If your really into noise.
Make sure you have None of these fluorescent light bulbs.
»steadfastfinances.com/bl ··· bulb.jpg

LOL, they are the worst enemy.

»www.gelighting.com/na/ho ··· pact.htm

Can compact fluorescent bulbs create interference with electronic equipment, such as radios?
Many electronic devices, such as radios, televisions, wireless telephones, and remote controls, use infrared light to transmit signals. Infrequently, these types of electronic devices accidentally interpret the infrared light coming from a compact fluorescent bulb as a signal, causing the electronic device to temporarily malfunction or stop working. (For example, your television might suddenly change channels.) Fortunately, this only happens when light is produced at the same wavelength as the electronic device signals, which is rare.

To reduce the chance of interference, avoid placing compact fluorescent bulbs near these kinds of electronic devices. If interference occurs, move the bulb away from the electronic device, or plug either the light fixture or the electronic device into a different outlet.

check this out
»brneurosci.org/fluoresce ··· nce.html
"This RFI appears at 30-40 kHz intervals up to about 500 kHz. "
Ooo wait thats where you have the best frequencies for your DSL..lol

Great work !

I am not seeing the choke do much difference as much as the first pictures. Your right it might only make a difference with errors in the long run which we won't see.

But your line is no longer as bad as it was before. I don't think the chokes are even necessary. Your line is pretty good.