All posts by jb38
Below are all of jb38's postings, with the most recent are at the bottom of the page.
MikeP: I fully appreciate that said about the advantages of using a multiswitch system, likewise do not in any way whatsoever have any issues with what you have said, as all I was really meaning is that the system being referred to "is" allied to the larger scale professional way of doing things, and as such cant really be said as being commonly used in the average domestic household, especially so with Stuarts query being in mind!, quad or octo blocks being the order of the day in situations where a few satellite PVRs are being used.
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Richard: Southwold is well outside of the coverage of Tacolnestons local LNR transmitter, its transmission pattern resembling that of a thistle, with the top of spanning from Great Yarmouth around the coastline to Cromer. and with the limits of its bulbous bottom section touching on Diss, Harleston and Loddon.
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Ned : As the statement of "assuming that you have good reception" in plain and simple terms means that you are unaware of exactly what you can receive, this being backed up by that said in your original posting of "shall I install an aerial", then before deciding on what system to use, I would suggest that you make one or two local enquiries in order to determine the status of Freeview reception in the area, as Freeview reception can be problematic in quite a number of areas, especially at certain times of the year.
Another point being, should the outcome of your enquiries be favourable for Freeview reception, make sure that this includes an answer of "yes" to the question of "can you receive ITV3", as many areas in the UK are covered by what's known as Freeview "light" transmitters, stations in this category only transmitting PSB channels associated with the licence fee and "not" the full range of commercial channels as available from main stations, the ITV3 question being particularly important as its only broadcast by main stations.
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Ned : Sight amendment to that said regarding the ITV3 question, make it Pick TV on EPG11, the reason for this being that I recall one exception to the norm of ITV3 / COM4 only being broadcast by main stations, although at this moment I cant remember the station that the exception applies to, but though Pick TV / COM5 "is" only broadcast from main stations.
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Paul: Locations where the quality of the signal received is being adversely affected by traffic passing along a nearby roadway, can in "some" cases be down to the aerial having moved slightly whilst it was being tightened up, insomuch is sitting a few degrees to the right or left of the exact direction that the signal is coming, this type of thing making it more sensitive to such as reflections from passing traffic etc, multi-element aerials of the high gain variety (should this apply) exacerbating the problem because of their narrower signal acceptance angle.
Therefore, as the aforementioned is only one possible reason for your problem, it would be rather prudent to make one or two local enquiries to ascertain if others are also suffering from similar problems with their reception, because if they are, then your aerial alignment is likely to be OK.
That said, you are indicated as being at 15 miles away from the Mendip transmitter @ 124 degrees, the line-of-sight problem you refer to seen on the terrain indicator as being at 7 miles prior to your location, a factor related to this being that reception of signals of a non-direct line nature is only possible through what's known as diffraction (signal bending) resulting in them being more vulnerable to anything that might interfere with them, e.g: such as vegetation in the form of trees etc on the land that is causing the LOS obstruction, this unfortunately being something that no one can do anything about.
By the way, on the subject of aerials, its quite unnecessary to use anything other than a Log periodic (Log 36) aerial for DTT reception, their only problem being one of image, insomuch that people incorrectly equate large pieces of metalwork on their roofs as in some way being superior to that of the much smaller Log types, the latter in many cases giving a superior level of glitch free reception by having a wider pick up angle plus a near to flat response across the channels.
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Chris G: If you are just in the process of setting up (tuning) your box, then although both the Ramsbottom and Haslingden transmitters were out of action from 23.03hrs yesterday until 00.39hrs today, I don't see anything mentioned with regards to any further problems such as the transmitters operating on reduced power, something which may cause difficulties with reception dependant on the aerial being used.
Another point being, you mention only receiving 9 programme channels, is BBC1, ITV1 or any of the HD channels included in the 9? also, is the aerial being used newly installed? and is any form of booster being used with it?
By the way, Ramsbottom is indicated as being the transmitter covering your area, the Mux channels being C53 (BBC) - C60 (ITV) - C57 (HD service)
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keith hetherington: Is your aerial connected directly into the Humax ?or it is being fed via the Sky boxes RF1input / RF2 output then into the Humax? because if it is your Sky boxes RF modulator might be set to the same (or near to) channel as used by Caldbecks HD transmitter.
A post code, or one from nearby, would assist in being able to check on the signal strength expected in your area from the Caldbeck transmitter.
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keith hetherington : In addition to that said, on having reread your posting I noticed you having stated that the signal "quality is the same across all used frequencies, does this include Mux C30 BBC HD England or alternatively Mux C22 HD Scotland.
The reason for asking being, that the quality being indicated whilst on the HD channels would be expected to be extremely erratic judging by what you have reported, and although not as yet having knowledge of your location, but should your signal strength be a tad on the high side then this can cause problems with HD reception, excessive signal strength always affecting HD before SD, sometimes the latter appearing to be perfectly OK.
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Peter Darrigan : A Humax 9300 should not lose anything previously stored unless it has been retuned whilst no signal is being received via the aerial.
However, the Mux channel numbers applicable to Winter Hill are as follows /
C50 (BBC) - C59 (ITV1 etc) - C58 (ITV3 etc) - C49 (Pick TV etc) - C55 (4Music etc).
A 9300 is not capable of receiving HD channels, likewise not included in the list.
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Friday 14 November 2014 9:15PM
Ned : The recording (or playback) facilities on Sky+ boxes are not accessible without a subscription having been taken out purely for this purpose, the charge being around £10.25 per month.
If, like many, you decide against taking out a subscription, then if a dish is already installed in your new house and with two coax feeds coming from it? your best bet would be to abandon the idea of using the Sky+ boxes and purchase a Freesat (not Freeview) twin tuner recorder (PVR), as Freesat devices are technically 100% compatible for use with Sky dishes.
If though on the other hand you do not have a dish installed, then provided you are located in a good area for reception? (a post code required for checking) it would probably be best to have an aerial installed and purchase a twin tuner Freeview recorder.