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All posts by Avon tv Aerials of Bath
Below are all of Avon tv Aerials of Bath's postings, with the most recent are at the bottom of the page.
What price for an aerial installation? | Rigger's zone
Sunday 24 November 2013 3:34AM
How can anyone here give a fair unbiased comment on whether or not Mr Robinson's dad was over charged or without seeing the job.
Nick may well be right in his comment because none of us know the length of
runs and what work was involved getting them there.
For all we know he may have been moving furniture lifting carpets pulling floor boards to get access to other rooms.
I was doing one a few months ago and was having to cut out tong and grove polished flooring from front to back of the house due to lack of rear access, and they didn't want to see any cables, which I wouldn't of either.
Anyway that job was started 9-15am and finally after retuning there TVs and PVR to
Walked out the house at around 6-30pm and that was just two outlets back and front of the house with
.So what could have been a 2 hour job and invoiced as such turned out a full days work with know breaks and one cup of tea, which made the bill which had been quoted before work commenced quite expensive comparing to a typical two outlet system.
Jamie... You say CAI bench marked cable as if its a guaranteed
cable without stating part numbers, Well I can a sure riggers and customers alike its not a guarantee of top notch quality cable, there are various grades .
For example Televes produce a RG6 type cable that's got the bench mark which is very cheap.
If you look at the construction and specification you will see why, I personally wouldn't chance it even for fly leads because of its screening properties.
Some Information for everyone:
You got to be careful these days because the equipment that been churned out from some of the manufactures where the screening is so sparse they are using impregnated plastics with carbon instead of tin copper your liable to all sorts of problems if using cheaper coaxial cables.
I have done various tests in the workshop that relate to this and when hooking up a spectrum analyser and monitoring equipment like the typical
box and some of these PVRs branded and unbranded alike, you would be suprised at what crap they radiate. The typical fly lead from
socket to equipment and interconnecting leads are critical if not more than the down lead itself due to close proximity.
So its worth baring in mind its not just outside
you have to worry about its also and often internal.
Some of these cheaper cables with the typical 12 meter down lead from stack to front room are OK far as signal strength, the problems that often arise is the errors within the signal due to screening and overall construction that's picked up on the way, and it will not get solved by fitting way over sized aerials that were never required in the first place like we see so many of.
The reason why your been able to switch off the signal to all 4 TVs from the wall switch is because the rigger has used a form of distribution
that's power supplied via a power supply unit plugged into your wall socket and fed via the TV coaxial lead .
Allot of riggers do it this way if there is no permanent supply near to where the distribution unit is installed which is often in the roof space.
The way around this is get a qualified electrician to take the mains feed from a permanent live source normally upstairs lighting circuit, fed into a fused spur fused at 3AMP then everything is neat and tidy.
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Evolution of safe working at height from ladders processes and
Tuesday 28 January 2014 3:54PM
safety measures in are trade and many others boils down to common sense and if the rigger hasn't got any of that they certainly wouldn't be working for me.
Most of the riggers that I have got to know over the years have always secured ladders where required but not necessarily with
bolts but tied to the
In certain circumstances the use of roof ladders can actually be more of a danger than pushing up tiles and walking up the battens.
It all boils down to individual jobs and the buildings your working on.
The hard hat which has to be worn on sites is understandable but when actually on the roof above everyone else, What is its purpose apart from bird pooh.
Safety boots or commonly known as rigger boots which again is insisted on site work are great when working on clay tiles but no good on slate, where as trainers are the safest option.
Finally and most importantly, If a job in your opinion cannot be done reasonable safe which means you don't feel at ease with the job then you have the option and
should walk away.
Personally I think its only a matter of time before all rooftop ladder work will be outlawed because there is no such thing as safety working at heights where ladders and getting on roofs are concerned, You can be careful as you like taking all safety measures into account but its still very dangerous work , and that is why taking adequate safety measures is still a very grey and shaded area .
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Mendip (Somerset, England) Full Freeview transmitter
Sunday 26 July 2015 6:16PM
The only way you can be sure what
is required, if infact one does need replacing is for a aerial rigger to various
procedures with his or her meter.
Far as replacment Aerial there is no one including myself that could give you a competent answer sat round a desk without getting on your
with a aerial and meter to deside what is or would be required.
However if you dont mind a over size aerial to play safe make sure your chimney lashing mounts and
are adequate to take the load, after all
can be reduced in various ways , its just big Aerials look horrible and if not needed its amature and not practical.
If you want my advise I would be looking at your coaxial downlead because quite often substandard or old coaxial
can deteriorate and often not handling the lower frequencys as well as further up the scale , although adequate signal strenth often remains it is the errors within the bits that give the problems measured as bit error rate. (BER) which should be the first thing the rigger does soon as he/she walks through your front door. Firstly before calling anyone out check the fly lead running from
socket to TV , if its one of those molded end type thin leads replace with better
after that without a meter your fairly knackered.
All the best
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How do I know if the 4G broadband will overload my Freeview? |
Tuesday 28 July 2015 9:33AM
4G problems are quite rare although it is and can be a problem more than lightly its a system fault
First thing you need to investigate, are others on the same communal system having the same symtoms?
If the only one with problems and your sure your tuned into correct
frequencys hook another TV up to the same outlet to prove its not or is your TV at fault.
IIf others also have a problem and your TV equipment is ok then you will need to contact the building management
that maintains your property to deal with it
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Upcoming Freeview transmitter changes 2017 to 2020
Friday 20 April 2018 6:37PM
Maybe of interest to some of you here
we have had a number of jobs come in that have been directly caused since the last most recent re tune on the main
which incidentally wasn't far off the date we experienced a earth tremor .
customer reported faults ranging from loss of certain
,almost all channels and intermittent loss of channels.
The two things they all had in common was firstly There location in respect to the mendip transmitter were not line of site Fringe areas of Bath where in the old days of Analog
the signal strength would have been good but ghosting would have been a typical problem.
Secondly they all were terminated into various Distribution amplifiers feeding either extra rooms or and individual flats.
In every instance the signal strength reading were reading ok the problem was the signals were so corrupt with bit errors.
Nine times out of 10 with the meter readings I was getting the fault would be the voltage regulation withing the distribution
/Multiswitcher which depending on replacement cost we either repair back in the workshop or replace but in these instances it was not the case.
Having gained access to the input of the amplifiers directly from
found the readings on various
's were a bit to high for the amplifiers and basically saturating the signals.
Cures were a mixture of attenuating the signal inputs of the larger IRS systems to replacing the domestic amps with inductive splitters where Amplification was not now required.
Nobody is to blame for these problems its down to a number of thing including equipment such as specification of coaxial cables been used etc, All have better or worse db
/losses/ noise figures at given frequency's which doesn't just end there you also have outside variables that can be frequency dependent which these instances are a typical example.
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