A Sky, cable and digital tv forum. Digital TV Banter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » Digital TV Banter forum » Digital TV Newsgroups » uk.tech.digital-tv (Digital TV - General)
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

uk.tech.digital-tv (Digital TV - General) (uk.tech.digital-tv) Discussion of all matters technical in origin related to the reception of digital television transmissions, be they via satellite, terrestrial or cable. Advertising is forbidden, with no exceptions.

Astrolabe or inclinometer?



 
 
Thread Tools Display Modes
  #41  
Old September 9th 16, 09:00 AM posted to uk.tech.digital-tv
Chris Green
external usenet poster
 
Posts: 129
Default Astrolabe or inclinometer?

Bill Wright wrote:
On 08/09/2016 21:07, Chris Green wrote:
Bill Wright wrote:
It bloody makes me laugh this does. We started off with somebody
wondering how he could figure out whether the tress were in the way of
the satellite signal. After a bit of ******** had been spouted I said
that the only foolproof way was to use a dish and a receiver. The basis
for this assertion was that I've been installing dishes since satellite
TV first started, and I've done thousands of installs. I've had more
than my fair share of awkward jobs partly because the local Sky
installers always fight shy of them. All this accumulated expertise
counts for nothing it seems. How much notice do you lot take? Sweet ****
all that's how much. The ******** continues to be spouted with talk of
spirit levels, telescopes, electron microscopes and borrowing the MRI
scanner from the local hospital. Deary deary me! Why not just accept the
word on somebody that knows and leave it at that?

Bill, while I accept you are an expert in this field it doesn't mean
that no one else can have an opinion or throw in other ideas. Try
being a bit more open minded and, dare I say, friendly.

Oh go and run up a shutter. Can't a man have a grumble now and then?

Yes, but you do nothing else as far as I can see.

--
Chris Green
·
  #42  
Old September 9th 16, 09:19 AM posted to uk.tech.digital-tv
Woody[_5_]
external usenet poster
 
Posts: 1,622
Default Astrolabe or inclinometer?


"Bill Wright" wrote in message
...
On 08/09/2016 20:05, Woody wrote:
"Bill Wright" wrote in message
...
It bloody makes me laugh this does. We started off with somebody
wondering how he could figure out whether the tress were in the
way
of the satellite signal. After a bit of ******** had been spouted
I
said that the only foolproof way was to use a dish and a receiver.
The basis for this assertion was that I've been installing dishes
since satellite TV first started, and I've done thousands of
installs. I've had more than my fair share of awkward jobs partly
because the local Sky installers always fight shy of them. All
this
accumulated expertise counts for nothing it seems. How much notice
do you lot take? Sweet **** all that's how much. The ********
continues to be spouted with talk of spirit levels, telescopes,
electron microscopes and borrowing the MRI scanner from the local
hospital. Deary deary me! Why not just accept the word on somebody
that knows and leave it at that?



Come on Bill, that would be far too easy - and well you know it!


Yeah well I'd just spent 25 minutes on the phone to Donny council
trying to set up a council tax payment on an address other than
mine. This was completely beyond the ability of the council to deal
with. That's really why I was irascible.



Well, after all, Donny is part of the Socialist Independent Republic
of South Yorkshire so what do you expect?


--
Woody

harrogate3 at ntlworld dot com


  #43  
Old September 9th 16, 10:15 AM posted to uk.tech.digital-tv
Java Jive[_2_]
external usenet poster
 
Posts: 1,632
Default Astrolabe or inclinometer?

On Fri, 09 Sep 2016 10:00:23 +0100, Chris Green wrote:

Bill Wright wrote:

Oh go and run up a shutter. Can't a man have a grumble now and then?


Yes, but you do nothing else as far as I can see.


Quite. Bill has only himself to blame. Useful signal amid the noise of
his perpertual, irrational, right-wing rants is like the proverbial needle
in a haystack. Is it any wonder that so many have plonked him?!

--
Please reply to newsgroup
  #44  
Old September 9th 16, 11:03 AM posted to uk.tech.digital-tv
R. Mark Clayton[_2_]
external usenet poster
 
Posts: 406
Default Astrolabe or inclinometer?

On Thursday, 8 September 2016 16:01:01 UTC+1, Paul Ratcliffe wrote:
On Thu, 8 Sep 2016 13:18:21 +0000 (UTC), Java Jive
wrote:

since dishes have to be aligned to ~0.1 degrees,
probably ~0.05 degrees for a rotor, I wouldn't even begin to trust it..

What utter rubbish from Charley McFarley.
Don't think he lives in the real world...


What is your figure for the required accuracy then? I note that you don't
offer one.


What's the beam-width of your average little $ky dish and how
much does it move in the wind? That'll give you more of a clue.

At one point (not sure if this is still true) some of the satellites
were 0.3 degrees apart, so your 0.05 claim looks rather silly.


Co-located satellites, like the several at 28E are kept very close together so that you can receive them all - and channels are arranged to look like one big satellite.

As a general rule however geo-stationary satellite positions are 3 degrees apart, however the polarisation of transponders alternates between horizontal and vertical (to reduce adjacent channel interference) and this is reversed on the neighbouring satellites to reduce co-channel interference.

Consequently a dish with a beam width of 6 degrees reasonably accurately aligned (including polarisation) will get good results. A dish of 60cm can do this. One will notice that smaller dishes (e.g. $ky 45cm dish) are wider than they are tall to make the horizontal beam width smaller.

The bigger the dish the smaller the beam angle. Aligning a 1.2m steerable dish correctly is quite difficult.
  #45  
Old September 10th 16, 02:05 AM posted to uk.tech.digital-tv
Bill Wright[_3_]
external usenet poster
 
Posts: 1,544
Default Astrolabe or inclinometer?

On 09/09/2016 10:00, Chris Green wrote:

Oh go and run up a shutter. Can't a man have a grumble now and then?

Yes, but you do nothing else as far as I can see.

Your myopia isn't my fault.

Bill
  #46  
Old September 10th 16, 02:12 AM posted to uk.tech.digital-tv
Bill Wright[_3_]
external usenet poster
 
Posts: 1,544
Default Astrolabe or inclinometer?

On 09/09/2016 11:15, Java Jive wrote:


Quite. Bill has only himself to blame. Useful signal amid the noise of
his perpertual, irrational, right-wing rants is like the proverbial needle
in a haystack. Is it any wonder that so many have plonked him?!

Could you verify that claim?

Bill
  #47  
Old September 10th 16, 02:54 PM posted to uk.tech.digital-tv
Graham.[_12_]
external usenet poster
 
Posts: 346
Default Astrolabe or inclinometer?

On Fri, 9 Sep 2016 03:07:03 +0100, Bill Wright
wrote:

On 08/09/2016 21:07, Chris Green wrote:
Bill Wright wrote:
It bloody makes me laugh this does. We started off with somebody
wondering how he could figure out whether the tress were in the way of
the satellite signal. After a bit of ******** had been spouted I said
that the only foolproof way was to use a dish and a receiver. The basis
for this assertion was that I've been installing dishes since satellite
TV first started, and I've done thousands of installs. I've had more
than my fair share of awkward jobs partly because the local Sky
installers always fight shy of them. All this accumulated expertise
counts for nothing it seems. How much notice do you lot take? Sweet ****
all that's how much. The ******** continues to be spouted with talk of
spirit levels, telescopes, electron microscopes and borrowing the MRI
scanner from the local hospital. Deary deary me! Why not just accept the
word on somebody that knows and leave it at that?

Bill, while I accept you are an expert in this field it doesn't mean
that no one else can have an opinion or throw in other ideas. Try
being a bit more open minded and, dare I say, friendly.

Oh go and run up a shutter. Can't a man have a grumble now and then?

Bill



Run up a shutter
My boyhood was spent in a small village north of Sheffield and there
were phrases which were regularly thrown at us, particularly if we
were being a little tiresome. For example if we were whining about
what we could do next we were told to " run up a shutter and pump
thunder." Similarly if we kept asking what we were going to have to
eat at the next meal we were told "chums and chairlegs." Strange
phrases which I have never come across since. If any readers can throw
light on them I would love to know.

Read more at:
http://www.yorkshirepost.co.uk/news/...lect-1-2574058


--

Graham.

%Profound_observation%
  #48  
Old September 10th 16, 03:13 PM posted to uk.tech.digital-tv
Graham.[_12_]
external usenet poster
 
Posts: 346
Default Astrolabe or inclinometer?

On Fri, 9 Sep 2016 03:10:28 +0100, Bill Wright
wrote:

On 09/09/2016 00:23, Davey wrote:

Note this day. Bill Wright complaining about thread creep! The King of
OT can't understand when people wander slightly off-topic.
It takes all sorts, thankfully.

The things I do I get a response...

Bill


Melvyn Bragg hosted a programme on Radio 4 last night largely about
Yorkshire plain-speaking

http://www.bbc.co.uk/programmes/b07tc373

No, mention of Granada Television as influencing Northern perception.
Does that cout as BBC bias?


--

Graham.

%Profound_observation%
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT. The time now is 10:48 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.SEO by vBSEO 2.4.0
Copyright 2004-2017 Digital TV Banter.
The comments are property of their posters.