Full Freeview on the Darvel (East Ayrshire, Scotland) transmitter
Brian Butterworth first published this on - UK Free TV
Google Streetview | Google map | Bing map | Google Earth | 55.579,-4.291 or 55°34'45"N 4°17'26"W | KA16 9LS |
The symbol shows the location of the Darvel (East Ayrshire, Scotland) transmitter which serves 150,000 homes. The bright green areas shown where the signal from this transmitter is strong, dark green areas are poorer signals. Those parts shown in yellow may have interference on the same frequency from other masts.
This transmitter has no current reported problems
The BBC and Digital UK report there are no faults or engineering work on the Darvel (East Ayrshire, Scotland) transmitter._______
Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
Which Freeview channels does the Darvel transmitter broadcast?
If you have any kind of Freeview fault, follow this Freeview reset procedure first.Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
Which BBC and ITV regional news can I watch from the Darvel transmitter?
BBC Reporting Scotland 2.4m homes 9.2%
from Glasgow G51 1DA, 31km north (1°)
to BBC Scotland region - 230 masts.
STV News 1.3m homes 4.8%
from Glasgow G51 1PQ, 31km north (2°)
to STV Central (Glasgow) region - 94 masts.
Are there any self-help relays?
Craigie Gardens | Transposer | 1 homes 90 caravans | |
Inversnaid | Active deflector | 35 km N Dumbarton | 8 homes Hotel caravan park |
How will the Darvel (East Ayrshire, Scotland) transmission frequencies change over time?
1984-97 | 1997-98 | 1998-2011 | 2011-13 | 5 Sep 2018 | |||||
A K T | A K T | A K T | A K T | W T | |||||
C22 | -BBCA | BBCA | |||||||
C23 | ITVwaves | ITVwaves | ITVwaves | SDN | |||||
C25 | D3+4 | D3+4 | |||||||
C26 | BBC2waves | BBC2waves | BBC2waves | ArqA | |||||
C28 | BBCB | BBCB | |||||||
C29 | C4waves | C4waves | C4waves | ArqB | |||||
C30 | _local | ||||||||
C31 | com7 | ||||||||
C32 | SDN | ||||||||
C33 | BBC1waves | BBC1waves | BBC1waves | ||||||
C34 | ArqA | ||||||||
C35 | C5waves | C5waves | ArqB | ||||||
C37 | com8 | ||||||||
C55tv_off | com7tv_off | ||||||||
C56tv_off | COM8tv_off |
tv_off Being removed from Freeview (for 5G use) after November 2020 / June 2022 - more
Table shows multiplexes names see this article;
green background for transmission frequencies
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W T
waves denotes analogue; digital switchover was 11 May 11 and 25 May 11.
How do the old analogue and currrent digital signal levels compare?
Analogue 1-5 | 100kW | |
BBCA, D3+4, BBCB | (-7dB) 20kW | |
SDN, ARQA, ARQB | (-10dB) 10kW | |
com8 | (-10.9dB) 8.19kW | |
com7 | (-11.2dB) 7.5kW | |
Mux 1*, Mux 2*, Mux A*, Mux B* | (-14dB) 4kW | |
Mux C*, Mux D* | (-17dB) 2kW |
Local transmitter maps
Darvel Freeview Darvel DAB Darvel TV region BBC Scotland STV Central (Glasgow micro region)Which companies have run the Channel 3 services in the Darvel transmitter area
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Is the transmitter output the same in all directions?
Radiation patterns withheldThursday, 26 May 2011
I have checked out the masthead amplifier and have found it is a Triax 13A Grouped MA.
The specs say it works from ch 21-34, so I am assuming this is not the problem? Presumably it will need to be swapped out if I ever try to rotate the aerial to pick up Black Hill after DSO though!
There is barely enough signal when the masthead amp is disconnected, although the same channels are scanned by the TV (they pixelate when watching though).
I usually find 46 DTV programmes and 16 radio on a full scan (chs 22,23 & 25). On the odd occasion an additional 17 channels are found on ch 26.
I have noticed that the picture quality is equally good by simply feeding the cable through an internal distn amp, without the masthead attached.
I am back to the main question, how come ch 28 is blank when chs 22 and 23 are so strong??
Thanks a lot for any help!
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David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
David: Your predicted reception from Darvel is OK at the moment, but it will become slightly worse next year.
You might want to consider moving the aerial to receive from Black Hill.
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david b: I would try "first time installation" again, but you should now have excellent Freeview HD reception.
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david b
3:34 PM
Glasgow
3:34 PM
Glasgow
did factory reset, DTV-80, RADIO-26, NOW still nothing on 28? my query is, why all singin and dancing a.m, and no HD now?
22-strength 100 qual 98-100
23 94 100
25 100 100
26 100 75 +
28 0 0
29 100 87+
these are my stats if they help?
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david's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
N
noel3:49 PM
Ayr
I lost all freeview channels at stage 2 of the Darvel switchover - but only on my computer (Compro Videomate dvb card). Two ordinary TVs on the same aerial work OK. Previously I had no problems receiving any of the freeview channels.
Any idea if something has changed in the signal format? I'm wondering if my TV card isn't compatible in some way.
KA7 4QJ
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noel's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
noel: Yes, the format has changed from "2k" to "8k" mode. I can't say I have known a DVB-T adaptor that does not support 8k mode.
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david b: That does seem very strange indeed. Can you check the Single frequency interference | ukfree.tv - independent free digital TV advice page?
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david b
4:56 PM
4:56 PM
Brian, have looked at single and multiple freq' problems, I have nothing "in line",DVD is on sep't input, no other device in use. my tv has a booster which is off. if the DSO signal has been constant, then i am also confused? i stay in a 4 in a block,(council)don't know ariel set-up, or the set-up of others in the block? i will keep eye on times HD present? bit sad if all i can do is watch it through the night, as was getting 1080p on BBC,far superior pic... unless there is any other advice? thank you brian, david
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J
jb385:28 PM
David / Briantist: if I could just add another aspect to be considered in cases where Darvel is being used for reception in the Glasgow area rather than Blackhill, that being, it should always be keep in mind that signals received from Darvel could be suffering from interference from the massive Whitelee wind farm at Eaglesham Moor, this having caused widespread problems for people in parts of Glasgow, Clarkston, East Kilbride, Newton Mearns etc even before it was expanded, with Scottish Power having paid out for satellite receivers etc in a multitude of the homes affected.
Needless to say the interference being of a totally random fashion in intensity, this being dependant on rotational speeds of the turbine blades.
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K
KMJ,Derby5:36 PM
David: If the signal from Darvel is weak using a group A receiving aerial rather than a tri-boom would give improved signal pick-up. Use a good quality 18 element group A yagi, or for a class 1 aerial a Blake DMX10A or Triax Unix52A. You are correct when you say that the masthead amp would require removing or replacing if you wanted to receive Black Hill signals.The Digital UK postcode checker predicts good reception from Black Hill at your location both now and after switchover, however whilst based on the general terrain along the signal path it does not take into account tall buildings, trees or other local obstructions.Inserting your house number into the D.UK.postcode checker would give a more accurate prediction.
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