Cant Get BBC4 on fringes of Rowridge

I live SO32 3NB but due to hills cannot get good signal from Rowridge. We
have been receiving reasonable analogue from Hannington with aerial
installed over 10 years ago. Freeview is good on ITV channels but BBC1,23 &
4 are poor or non existent. Does anybody know whether a new aerial directed
on either hannington or rowridge would help

url:http://myreader.co.uk/msg/124339887.aspx

In an earlier contribution to this discussion, Java Jive
wrote:
Blimey, you're walled in there aren't you, high ground in every
direction!

The postcode checker ...
http://www.digitaluk.co.uk/postcodec.../SO32+3NB/NA/0
... suggests:


Hm, just used that on my postcode - gives some very useful output.

Anyone know what the plusses and minusses after the UHF channel numbers are?
(e.g. 34+ instead of plain 34)
--
Cheers,
Roger
_______
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

In message , Roger Mills
writes
In an earlier contribution to this discussion, Java Jive
wrote:
Blimey, you're walled in there aren't you, high ground in every
direction!

The postcode checker ...
http://www.digitaluk.co.uk/postcodec.../SO32+3NB/NA/0
... suggests:


Hm, just used that on my postcode - gives some very useful output.

Anyone know what the plusses and minusses after the UHF channel numbers are?
(e.g. 34+ instead of plain 34)

That will be the frequency offset from the nominal 'spot-on' frequency
(+ or - 187kHz? - I've forgotten).
--
Ian

In an earlier contribution to this discussion, Ian Jackson
wrote:
In message , Roger Mills
writes
In an earlier contribution to this discussion, Java Jive
wrote:
Blimey, you're walled in there aren't you, high ground in every
direction!

The postcode checker ...
http://www.digitaluk.co.uk/postcodec.../SO32+3NB/NA/0
... suggests:


Hm, just used that on my postcode - gives some very useful output.

Anyone know what the plusses and minusses after the UHF channel
numbers are? (e.g. 34+ instead of plain 34)

That will be the frequency offset from the nominal 'spot-on' frequency
(+ or - 187kHz? - I've forgotten).


Right, thanks - hadn't come across that! Why do they do it - is it to reduce
interference from nearby channels by moving them further apart?
--
Cheers,
Roger
_______
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

In message , Roger Mills
writes
In an earlier contribution to this discussion, Ian Jackson
wrote:
In message , Roger Mills
writes
In an earlier contribution to this discussion, Java Jive
wrote:
Blimey, you're walled in there aren't you, high ground in every
direction!

The postcode checker ...
http://www.digitaluk.co.uk/postcodec.../SO32+3NB/NA/0
... suggests:


Hm, just used that on my postcode - gives some very useful output.

Anyone know what the plusses and minusses after the UHF channel
numbers are? (e.g. 34+ instead of plain 34)

That will be the frequency offset from the nominal 'spot-on' frequency
(+ or - 187kHz? - I've forgotten).


Right, thanks - hadn't come across that! Why do they do it - is it to reduce
interference from nearby channels by moving them further apart?

I think the main purpose is to move them a bit further away from
adjacent analogue channels (at least that's what the Crystal Palace
allocation looks like). However, there may also be more subtle reasons,
such as minimising the effects of co-channel interference (somewhat
similar to the analogue offsets) - but I'm not sure about this.
--
Ian

In article , Java Jive
scribeth thus
Blimey, you're walled in there aren't you, high ground in every
direction!

The postcode checker ...
http://www.digitaluk.co.uk/postcodec.../SO32+3NB/NA/0
... suggests:

Rowridge
Hannington

... alternatives ...

Mendip
Midhurst


Ummmm.. Ever thought of Freesat?...
--
Tony Sayer

Ian Jackson wrote:

Anyone know what the plusses and minusses after the UHF channel
numbers are? (e.g. 34+ instead of plain 34)

That will be the frequency offset from the nominal 'spot-on' frequency
(+ or - 187kHz? - I've forgotten).

167 kHz

I think the main purpose is to move them a bit further away from
adjacent analogue channels (at least that's what the Crystal Palace
allocation looks like). However, there may also be more subtle reasons,
such as minimising the effects of co-channel interference (somewhat
similar to the analogue offsets) - but I'm not sure about this.

There was a discussion about them a few weeks ago in the Mendip DSO thread

http://groups.google.com/group/uk.te...c9d0c82f380c9#

Java Jive wrote:

The postcode checker ...
http://www.digitaluk.co.uk/postcodec.../SO32+3NB/NA/0
... suggests:

Rowridge
Hannington

They're the two most likely, and most likely of the two is Rowridge

... alternatives ...

Mendip
Midhurst

Midhurst possibly, but Mendip no, in any case Mendip is co channel with
Midhurst for some channels

Crystal Palace, 55.4mi, DTT Pre DSO 1.4dBm

Might be a goer, because the Meon Valley faces London, I used the drive
the Alton to Wickham stretch of the A32 happily listening to Capital
Radio from Croydon.

However:-

BBC 2 analogue CP is co-channel with Mux D Rowridge
C4 analogue CP is co-channel with Mux A Rowridge
C5 analogue Croydon is co-channel with Mux C Rowridge
And Mux B CP is co-channel with Mux B Rowridge

I suspect it could well be interference from CP causing some of the
Rowridge reception problems.

To be honest, the cheapest and most pragmatic solution is to rig up a
Freesat set up, and wait the two years for DSO at Rowridge. There should
be no reception problems then, Rowridge will be using an obscence amount
of power post-DSO.

Oxford, but similar direction to Hannington and further.

No chance

Hatch Bottom, 7.6mi, Analogue -1.3dBm
North Winchester, 12.1mi, Analogue -8.4dBm
Hythe (Hants), 13.6mi, Analogue -12.4dBm

Not only analogue, but they only carry ITV, they were built to solve
regional programming anomalies when Meridian started their Thames Valley
region. Now that's been consumed back into the main South Coast region
their use is superfluous. I doubt they will survive post DSO.

Horndean, 6.4mi, Analogue -11.9dBm
Alton, 13.5mi, Analogue -19.3dBm

No chance,