NewsTVFreeviewFreesatMapsRadioHelp!
News: I have now lost all signal can you tell me what the problem might be?
My UK Free TV settings
For an enhanced Freeview reception
prediction please enter your
full postcode, a national grid reference or
a UK latitude and longitude pair.
 

enter-beta
Subscribe now
Get regular email updates straight to your inbox!
Most popular LIVE 13:42
Twitter LIVE 13:42

Briantist: http://t.co/8OzaJTaYUm Тhe recent survey pointed out that mobile users were unhappy with some of the aspects of the UK Fr
Briantist: Read this! You know you want to... is out! http://t.co/I2KcrfG6Wz Stories via @jasondeansy
Briantist: Read this! You know you want to... is out! http://t.co/I2KcrfG6Wz
Briantist: http://t.co/wUhKFBcrvj Тhe BBC exists because every ten years the monarch has granted another Charter Given the changes i
Briantist: http://t.co/bZDltrBXWm a516digital Nοrth Yorkshires local DAB multiplex set to launch with three services Local DAB isset to lau
Briantist: http://t.co/4BQs5h8lNU Aereo Мay Be Dead But Internet TV Will Live On WIRED Its a sad day for Aereo and all those who believed i
Briantist: http://t.co/lBN4UbOpKL Contributor by Google When you visit a participating website part of your contribution goes to the creator
Briantist: http://t.co/bZDltrBXWm ɑ516digitɑl North Yorkshires local DAB multiplex set to launch with three services Local DAB isset to la
Briantist: http://t.co/4BQs5h8lNU Aereο May Be Dead But Internet TV Will Live On WIRED Its a sad day for Aereo and all those who believed i
Briantist: http://t.co/lBN4UbOpKL Сontributor by Google When you visit a participating website part of your contribution goes to the creato

Click here to follow Briantist on Twitter
Did you know?
Did you know that most of the TV viewing in the UK is to free-to-air channels? According to BARB, last week's** figures show:
Freeview had 79.8%
*
Freesat had 76.9%
*
Sky no card had 77.2%
*
* premium channels had 4.4%, ** to 9 Nov 2014
> News >


Your comments: most recent posts are at the bottom

firstFirst comments prevEarlier comments  ◊ 

Your comments are always welcome. Please use the form below to add your thoughts or questions to this page. We will get back to you as soon as we can.

D
Dan
Friday 21 November 2014 10:13AM Poole

Dave: Thanks for the advice. Looking at where we are on the map, if you drew a line between Stockland and Rowridge we'd be bang on it. We also have a clear line of sight across Poole Harbour in the direction of Stockland Hill and nearby buildings ar arranged to provide a pretty good reflection of the unwanted signal into the front of the aerial.

I want to stay horizontal as I watch BBC4 HD but I want to be able to pick up ITVBe (wifey is a TOWIE addict) so I'm considering fitting another aerial on the same mast vertically and using a masthead combiner to mix the two signals. Initial googling says this would work but would appreciate your advice on this as I also have a masthead amplifier and am concerned about mismatching.

Dan

Dan:

link to this
Dave Lindsay
Friday 21 November 2014 8:13PM

Dan: I write on here as a technical bod rather than a rigger (you wouldn't get me up on a roof!).

I don't think having two aerials combined will work, or if it will then they would have to be set up correctly.

You can end up getting a worse signal because combining ends up with one cancelling the other out (to some degree).

Ideally a dual polarised aerial might be better (I imagine), but how much better I don't know. But then such a thing might not be available.

Rowridge's channels are all Group A, so a Group A aerial (now wideband) is what you want if it's a yagi type. See:

<img src="data:image/png;base64,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" class="xico" style="vertical-align:text-bottom" alt="www.aerialsandtv.com link icon" link iconRowridge Transmitter

I think your best bet is a log periodic which is wideband but doesn't suffer from the drop off in sensitivity on lower channels.

Perhaps one of the other experts can chip in here.

link to this
J
jb38
Saturday 22 November 2014 7:12PM

Dan : On having read over what you have said, and especially the idea mentioned to Dave Lindsay of fitting a second vertically polarised aerial onto the mast in order to receive the high powered COM channels from Rowridge, then I would definitely say go ahead with this idea.

However, as far as the second part of your idea is concerned, insomuch of connecting the output from the new aerial along with same from the original into a mast head combiner with both then using one downlead, this type of action is not automatically guaranteed of success due to the possibility of interaction occurring between the aerials receiving the high powered PSB multiplexes, the level of any difficulties that may possibly be experienced dependant on the exact position of the new aerial in relation to the existing original, the wiring used to couple the two aerials into each of their respective combiner ports not being excluded from the equation either.

The policy guaranteed to work, would be to run a second feeder from the new aerial down to wherever the existing one is terminated, then use a two position aerial switch to select which one of the two aerials is required, both operating completely independently of each other.

link to this
jb38's 6,131 posts
Platinum Platinum GB
updates
Automatic update every 1 minute



Please post a question, answer or commentUK Free TV is here to help people. If you are rude or disrespectful all of your posts will be deleted and you will be banned.







Privacy policy: UK Free Privacy policy.
My UK Free TV settings
For an enhanced Freeview reception
prediction please enter your
full postcode, a national grid reference or
a UK latitude and longitude pair.
 

enter-beta
Most popular LIVE 13:42
Twitter LIVE 13:42

Briantist: http://t.co/8OzaJTaYUm Тhe recent survey pointed out that mobile users were unhappy with some of the aspects of the UK Fr
Briantist: Read this! You know you want to... is out! http://t.co/I2KcrfG6Wz Stories via @jasondeansy
Briantist: Read this! You know you want to... is out! http://t.co/I2KcrfG6Wz
Briantist: http://t.co/wUhKFBcrvj Тhe BBC exists because every ten years the monarch has granted another Charter Given the changes i
Briantist: http://t.co/bZDltrBXWm a516digital Nοrth Yorkshires local DAB multiplex set to launch with three services Local DAB isset to lau
Briantist: http://t.co/4BQs5h8lNU Aereo Мay Be Dead But Internet TV Will Live On WIRED Its a sad day for Aereo and all those who believed i
Briantist: http://t.co/lBN4UbOpKL Contributor by Google When you visit a participating website part of your contribution goes to the creator
Briantist: http://t.co/bZDltrBXWm ɑ516digitɑl North Yorkshires local DAB multiplex set to launch with three services Local DAB isset to la
Briantist: http://t.co/4BQs5h8lNU Aereο May Be Dead But Internet TV Will Live On WIRED Its a sad day for Aereo and all those who believed i
Briantist: http://t.co/lBN4UbOpKL Сontributor by Google When you visit a participating website part of your contribution goes to the creato

Click here to follow Briantist on Twitter