[UK-CONTEST] Speed ur Broadband & NO RFI

[ALEX LISTER]

Just to basically confirm some of the sensible comments so far.
Had similar problems particularly on 160 metres (10 watts of course !)
Keep thinking I should pen a short missive to Radcom re ADSL etc

Network cabling NTE BOX


1. If you can, please make sure you use a proper splitter AT the point of entry from the BTDrop-wire or Virgin NTE Box
remember its dead obvious to an Engineer if you have done a Non Professional job.
(You could incur a significant charge if it buggers up your landline installation!)

Best system is the replacement face plate option.

2,    Failing that Use a separate Splitter Box fed directly at point of entry to ur existing box.
This will tidy up the phone and data installation.
Also gets rid of all that old telephone wire extensions etc shunting ur data connection.
Connect Router at this point, 

If ur PC etc is some rooms away then use  a so called RJ45 LAN between locations

I recommend a Ferrite ring and a chain of large ferrite Beads on the drop wire input to the NTE BOX

I have used this system with several Different Routers and networking Box,s And numerous RJ45 LAN,s plus even the dreaded PLT to the Satellite Box, With No problems 160 - 432
My NTEdrop-wire point being in the shack and close to my normaly used Doublet feeder point, 

Dropwire also very close to one leg of my doublet ..
If anyone is stuck I have a quantity of ferrites. Ex BT !!

So chaps tidy up that lousyphone installation hopefullya much better ADSL speed and NO RFI ! 

Look on the Internet for Face Boxes (Replacements)

To: uk-contest at contesting.com 
Sent: Monday, 28 May 2012, 19:52
Subject: [UK-CONTEST] Broadband
 


I've cured similar ADSL broadband problems by ensuring that all of the house
telephone wiring is on the audio side of the filter and that the filter is
located at the point of entry to the house. 

Infinity uses VDSL which does indeed use a greater spread of frequencies
than ADSL.  I would expect it will be therefore more susceptible to 40 and
30m RF. Maybe even to desensing from 20m RF.

But there are several pieces of good news -  the system works by negotiating
lots of different frequency slots that it then uses in parallel to effect
the communication. If you knock off all the high ones the rate will drop
significantly, but in most cases you'll have sufficient unnaffected slots
for some kind of broadband service to be usable. After your operating is
over, the system should eventually re-negotiate and lay claim to its
original frequency slots again.  ADSL works the same way but 160 and 80 can
wipe it out more or less completely because there are fewer frequency slots
in use.


The normal layout for VDSL is to have it at the point of entry to the house
to reduce the distance the signal has to travel over low quality wiring.
This will afford a great deal of protection in the first place.

But its all theory at the moment - there seems to be few reports at the
moment concerning VDSL and ham radio.  It will be very interesting to hear
from any hams that use VDSL and know if they have problems or not.


73

Bernie
GM4WZG



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