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.. If you tell them, the broad band seems to
drop out quite regularly, they may check the
line and possibly do some refurbishment works if its
under the stated minimum , already told you its noisy
... if they ask , just tell them your a 'Y'
station and the broadband is raising you
noise floor ...
G..
Sent: Monday, February 20, 2012 10:04 AM
Subject: Re: LF: opera 500
Hi Ken
Yes the filters are fitted. I know how the system works as
you describe it. Since the common denominator is the copper line I thought
the RF would effect both. My line is probably 3 miles to the telephone exchange
via various junction boxes etc and 30 plus years old. Not ideal and never
intended to carry high speed data. The engineer did say my line was
noisy.
The whole country needs to be re-cabled with fibre optic
cable now that wideband data is here to stay and make life easy for the
Appliance Operator
mal/g3kev
----- Original Message -----
Sent: Sunday, February 19, 2012 7:26
PM
Subject: RE: LF: opera 500
Hi
Mal.
The
telephone portion is speech in the standard 300Hz ? 3400Hz speech band
directly on the copper pairs, the DSL sits on top of this using the DSLAM in
the exchange, that is why you have a ?Micro Filter? at each telephone outlet
in the house, do you have a ?Micro Filter at each telephone
outlet?
Regards.
Ken
M0KHW
From: owner-[email protected]
[mailto:owner-[email protected]] On Behalf Of mal hamilton
Sent: 19 February 2012 11:29
To: [email protected]
Subject: Re: LF: opera
500
No overhead
lines around my QTH, all underground and there is no problem with the
telephone regardless of power on any band.
Normally it is
not a problem with CW, SSB, or QRSS it is just a problem with Opera because of
the data base feedback facility
-----
Original Message -----
Sent: Sunday,
February 19, 2012 11:05 AM
Subject: RE: LF:
opera 500
Hi
Mal.
I
had the same problem until I went Fibre To The Cabinet (FTTC), if you are on
a long local line especially if it is overhead, the most likely there will
not be any DSL carriers above 500kHz, and what are present will have a very
poor S/N ratio. I fitted common mode chokes on every piece of cable I could
find and they made no difference, only a few watts at 500kHz and the lower
HF bands would cause the DSL router to drop out and re-train up. I had my ex
(pre-retirement) colleagues from BT Adastral Park, conduct
measurements on my local line, (2.8km in length with 30m of drop wire) as
part of a national survey, the line without the common mode chokes had no
DSL carriers above 500kHz with an S/N less than 10dB, with a few watts of TX
power with and without CMCs the remaining carriers were degraded
sufficiently to cause the router to retrain. Another cause could be if you
have drop wire there could be corrosion on any external screw terminals
causing ?Rectified Joints? like the rusty bolt effect on radio masts, water
getting into older types of drop wire can cause corrosion on the plated
steel conductors.
Hope
this helps.
Ken
ex-BT Adastral Parkl
M0KHW
I have some
filtering and the phone is not effected only the data stream taking some
hits.
It could well
be an earth loop problem, must investigate
further.
Its a long
time since I have been in Walmsley/Liverpool. I used that route frequently
Liverpool/Belfast but these days its
Cairnryan/Larne
The mode is
popular because it is easy to implement especially with CW transmitters and
C/D/E amplifiers.
-----
Original Message -----
Sent: Saturday,
February 18, 2012 9:02 PM
Subject: Re: LF:
opera 500
Yes I cam
across this some time ago with the
first broad band router, I brought one
by edimax , not supposed to be the best , but had
a metal case and a real fcc
licence , that was fine , till adsl2 , the net-gear
modem supplied was 100% u/s with any
Rf on any band ....
I brought the the
newer version of the edimax , its not
as Rf proof as the old adsl-1 version, but
for some reason , only takes a hit on
160/80
Not too much
you can do , apart from the
usual Rf chokes , could try a radio
card from the router to the PC , if that's where
the Rf is being picked up ..unplug
everything , see if it crashes with just
the phone line connected ? but with just the
driver , sounds a bit like a earth link .. depends how
you have the station wired up , i am in the
top front room of the house , so no
direct earth , that's out in the shed ,
where the tuners are , but I need to
bond everything together to stop cable pick
up..
Sent: Saturday,
February 18, 2012 6:36 PM
Subject: Re: LF:
opera 500
This seems
to be the problem although it recovers quickly but not quick enough. It
happens with very little RF being transmitted at the driver chip stage
without the PA switched on.
-----
Original Message -----
Sent:
Saturday, February 18, 2012 1:00 PM
Subject: Re: LF:
opera 500
Are you sure
the internet/broadband connection is not
being frozen by the TX . ?
I have this
problem on 160 and 80 for some reason , 10
watts and the web traffic
stops
but oddly , no problem
on the other bands ...so you can miss
the incoming spots ..
check the
psk map and you will see 'who' is
decoding you ..
This is one of
the reasons a server handling the
ros & opera s/n reports
would be a good addition . but the
problem is finding some one or group who
could construct such a piece of software .. it
can be located on the sever JR
runs .... still looking for offers
on that ..
Sent:
Saturday, February 18, 2012 11:05 AM
Subject: Re: LF:
opera 500
But why
am I not seeing this info on the right hand windiow. You are S9
audible
-----
Original Message -----
Sent:
Saturday, February 18, 2012 10:40
AM
Subject: Re:
LF: opera 500
Op 18-2-2012 11:12, mal
hamilton schreef:
Does
anyone copy my op4 on 501.5 at present. No database feedback from
anyone
10:16
500 G3KEV de PA0LCE Op4 495 km -9 dB in LAGE MIERDE
JO21NJ
10:16
500 G3KEV de PA3ABK Op4 443 km -3 dB in Dordrecht
10:16
500 G3KEV de G3ZJO Op4 229 km -26 dB in Northampton
10:16
500 G3KEV de ON6EO Op4 -4 dB in
JO11LE
10:16
500 G3KEV de PA0ONO Op4 421 km -13 dB in Rotterdam
10:16
500 G3KEV de PA0A Op4 461 km -1 dB in Lucaswolde
JO33DE
10:15
500 G3ZJO de G3ZJO Op4 0 km +6 dB in Northampton with .0002w + 5m inv L-rx
mini
whip
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