All posts by Chris.SE
Below are all of Chris.SE's postings, with the most recent are at the bottom of the page.
Alan_C:
It's not specifically anything "operating" on 690MHz, it's anything that might possible generate some interference to that frequency. In the expression "electronic control"/ powered all the time that would include anything with a SMPS (perhaps I could have been more explicit) so things like Mobile Phone chargers, USB power supplies etc. could all be suspects.
As it seems that the amp is not a likely source of issues for the C48 problems, unless repositioning of the aerial causes a significant uplift of the signal for the other multiplexes, not just SDN and COM7 (C48 & C55) then it's probable that you'd benefit from some amplification but not (necessarily) the full amount the amp can give.
You might find for example that you can get an uplift in C48 & C55 moving the aerial but you might get a slight drop in the others, so amplification to bring them all up would be a good idea.
By using a variable attenuator, you can hopefully tweak it to get the best compromise. You'd put it between the amp and the set, not aerial and amp. If you highlight the whole of that eBay url and open it in a new tab say, or search eBay for the item number - just the number, no words, it'll take you straight to it. There are other suppliers on eBay and on other sites, but not necessarily at such a good price for that - quite good - brand. If you go elsewhere, watch that you want coax connectors not F-connectors.
Hobby? Haaa, well, it was onetime work, these days it helps keep the brain active, but it's sometimes difficult to remain polite when you get some posts like two on the previous 2/3 pages here!
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Chris:
I'm afraid I can't find any reported faults, but I suspect in the current climate they may get delayed or not even appear! Has reception returned ok, or is there still a problem?
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Meriel Brown:
Have your signals returned OK? I suspect there is unlisted engineering at the transmitter due to problems with DAB Radio transmissions the day before your post.
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Carol:
Do you still have a problem with No Signal?
There's a few STV Central transmitters affected by Planned Engineering although Glasgow West Central Relay wasn't listed as one of them. Black Hill, the main transmitter for the area is listed with "Possible Service Interruptions". I would have expected signals to have returned by now. Other than that, I can't find any listings of reported faults.
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Andrew S Hatton:
I can't find anything. I assume the website you know is Sputnik News Radio | Listen to radio online streaming | Podcasts
They have podcasts, maybe the programme you want is on a podcast?
They have a twitter account @SputnikInt you could try asking there, or via their feedback page Feedback - Sputnik International
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Callum west:
I would be getting LNB Skew and Dish alignment checked in case things have moved in some of the high winds or even wasn't 100% originally.
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Alan_C:
Sounds like you've been very thorough in the checks that you've done.
In many respects, I'm not surprised that the signal is better through the tiles rather than a wall, even with all the rain today!!
Yes tilting the aerial slightly can improve signals in some circumstances. Did you try any slight rotation as well whilst it is tilted or isn't there enough headroom for that?
Any signal on C55 now?
Getting any side-lobe signal for Stockland Hill without any amplification was probably expecting a bit much. I still say you have a scope for improving things with the amp, but use a variable attenuator between amp and TV (located at the TV end) should enable you to tweak things to get optimum signal without overload.
It'd give you more chance of a reasonably reliable signal for C55 but improve reliability for C35 going by those figures.
You never know, you might even get a Stockland Hill signal!
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Alan_C:
For the sake of clarity, when I said "to tweak things to get optimum signal without overload" it really means to get the Quality figures up, ideally to 100% without overload.
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Wednesday 11 November 2020 7:57PM
Russell:
When did you last have the picture breakup, are you getting it now, this week? If not, last week there was some "Tropospheric Ducting" around at different times affecting various signals across the country causing interference issues, see Effect of tropospheric ducting on Freeview | Help receiving TV and radio for a simplistic explanation.
Other than that, do you have any HDMI leads that are close to your aerial cable or flyleads? If so move them away as they can cause interference especially if your aerial cables are not the high quality double screened type.
As for this band pass filter idea where did that come from? The only justification for a filter of any kind would be if you are getting interference from a mobile phone mast that is very close to you. if so you could get a free filter (and it's a low-pass) from At800 BUT as you probably don't have a very strong signal in your location, I wouldn't suggest fitting one unless it was absolutely essential as they will have some insertion loss.
On the point of signal strength, I would ensure that the aerial is connected to the Youview box directly as I get the impression they don't appear to have very sensitive tuners.
You may have very weak signals at your locale but to see what the Freeview Detailed Coverage Checker gives for your predicted reception, we'd need a full postcode.