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Hi Graham
Are you sure the problem is the router?
136, 500, 160 and to some extent 80m here are kill
the ADSL. Even at very low powers. If your ADSL
is cut during your transmissions only and resumes at the
original speed directly afterwards it may well be the router
being temporarily being knocked out. If however you line
stays down for a period of time say several hours then it is
not the router. What you are doing is putting noise (owing
to RF) onto your line which is being picked up at the
exchange DSLAM. The exchange equipment (DSLAM) serving your
line will reduce data speed to ensure that a connection of
sorts is maintained. This speed can go down to below 80kb/s
from which it will not recover without technical
intervention by BT Open Reach. If it goes down to about
300/500kb/s it may well recover it's original speed over a
period of time BT quote 72 hours yes 72 hours (I think this
time period is not a technical issue but one to stall the
punters off). On a good day the recovery period can be
speeded up by turning the router off and disconnecting every
thing from the line and waiting. This makes a quiet line for
the automatic recovery to work.... on a good day!!! If you
don't have enough life left to wait for BT to physically do
some thing then the best thing is to write to BT HQ in
London to the their CEO (his name and location can be found
with a bit of research) and tell him what you think of his
outfit. I know from experience he does not like receiving
this kind of letter. You may have your ISP as Joe Blogs
Internet Provider dot Com but in reality it is all
provided by BT they own the final mile and the exchange
...... legal niceties to one side it is a fact.
If you get a good Broad Band data rate of say
4/8mb/s your transmissions on LF/MF will only slightly
degrade your ADSL but if like me on the end of 7.5km of
copper its only 1/1.5mb/s on a very good day, RF will wipe
out your ADSL for a week or more. So without a lot of
letter writing to BT and angry phone calls your ASDL
will not return to original speed..
To maintain a usable data rate on Broad Band here I can
not use 136 or 500kc/s above a few Milli Watts at TX output
about 1 Watt on 160m 80 about 50Watts and on 60m and
above 100Watts (possibly more but not tested yet). Also
the longer you stay on the worst the speed degrades.My guess
is with ADSL2 having a much wider bandwidth the problem for
Amateurs will extend further up the spectrum than shown
above.
Hope you are not in my situation....... Oh and don't
believe all this Fibre stuff. Open Reach have told me
that one reason why Fibre is not being rolled out like the
Virgin setup is that there are only a few BT people capable
of working with Fibre. This is the reason why BT is
Wedded to copper wire. So we locally have Internet
breakdowns owing to Junkies and the like ripping the
Copper cables out of BT ducting to pay for
drugs... Bedfordshire has had Internet disconnections for
days owing to this phenomenon. So along with cable theft and
the lack of trained staff a proper interference free
Broad Band coverage using fibre in this country is
looking particularly bleak.
Good luck! 73 es GL
petefmt I support www.NotSpotTelecom.Com your
community Telco / ISP. --- On Thu, 25/11/10,
Graham <[email protected]>
wrote:
From:
Graham <[email protected]>
Subject: LF: Any
ADSL2 BBand router / RF proof ?
To:
[email protected]
Date: Thursday, 25
November, 2010, 22:06
Any ADSL2 BBand
router / RF proof ?
Just upgraded to
ADSL2 with a orange net-gear
router/wifi router, now 15
watts on 160 kills the
connection
router is in the same
location as the old edimax , which kept
running with 200 watts on 500 K
and 400 on Hf
? any RF
proof ADSL2 on the
market >
Tnx -
G..
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