Originally posted by Mal link=1206260940/45#52 date=1206626891
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TV Aerials, HD STBs, HD DVB-T Receivers, SAT TV.
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
Was going to say, I like to live dangerously..but then standing way up there on top of this ladder will be more dangerous than swingin up there on an abseil rope. I think thats why I was looking forward to it,.. would be safer and so it would be fun at the same time. Anyway,.. job planned for this weekend when hubby is home to hold ladder.
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
Youre a bit of a worry there Remy.....Originally posted by Remy link=1206260940/45#51 date=1206611210Was kinda looking forward to swingin on some rope tho,... hubby is probably relieved >
.
Mal.
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
Cool.. will go ahead as planned. Spoke to my husband tonight about me thinking I wont be able to reach the pole from the courtyard (to unbolt and lay on top of shadecloth so I can work on it there,..replace pole etc) and he reminded me that we have another lonnnnnnnnnng ladder fireman style that has been decoration for the side fence so long I forgot we ever had it :
. That should allow me to reach it from the courtyard no worries.
Was kinda looking forward to swingin on some rope tho,... hubby is probably relieved >
.
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
I wouldnt worry about it until you test the new setup. The pole may be far enough back from the peak that reflection wont be an issue.Originally posted by Remy link=1206260940/45#47 date=1206586421Dont tell me this,... I just spent a whopping $5 on the longer pole. I was so proud of my hunting/gathering/bargaining skills............*snif*
Java "Looking ahead for the bridges that may need to be crossed." phile
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
::gives YeeZa the evil eye::Originally posted by YeeZa link=1206260940/45#48 date=1206592783You can always cut it
[img]www.studioheath.com/images/bits/evli.jpg[/img]
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
You can always cut itOriginally posted by Remy link=1206260940/45#47 date=1206586421Dont tell me this,... I just spent a whopping $5 on the longer pole. I was so proud of my hunting/gathering/bargaining skills............*snif*Originally posted by Javaphile link=1206260940/45#46 date=1206581489Another consideration is the effect of your roof on your signal. A metal roof will act as a giant radio wave reflector. With the house antenna pointing across the roof to the transmitting antenna you may very likely end up with ghosting issues.
Looking at the picture of the antennas location this will hopefully be a minimal issue. Because of the 1:1 slope of your roof and the transmitting antenna being higher most of the reflected radio waves will not reflect towards your antenna.
If ghosting is an issue (and all other sources have been checked out as the cause) try lowering the antenna until it just barely clears the peak of the roof. The higher the antenna, the more it will be effected by reflected radio waves. If that doesnt work then youd probably be looking at having to move the antennas location to the end of the house nearest the transmitter so that it doesnt overlook the roof.
Java "Isnt electronics fun!" phile
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
Dont tell me this,... I just spent a whopping $5 on the longer pole. I was so proud of my hunting/gathering/bargaining skills............*snif*Originally posted by Javaphile link=1206260940/45#46 date=1206581489Another consideration is the effect of your roof on your signal. A metal roof will act as a giant radio wave reflector. With the house antenna pointing across the roof to the transmitting antenna you may very likely end up with ghosting issues.
Looking at the picture of the antennas location this will hopefully be a minimal issue. Because of the 1:1 slope of your roof and the transmitting antenna being higher most of the reflected radio waves will not reflect towards your antenna.
If ghosting is an issue (and all other sources have been checked out as the cause) try lowering the antenna until it just barely clears the peak of the roof. The higher the antenna, the more it will be effected by reflected radio waves. If that doesnt work then youd probably be looking at having to move the antennas location to the end of the house nearest the transmitter so that it doesnt overlook the roof.
Java "Isnt electronics fun!" phile
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
Another consideration is the effect of your roof on your signal. A metal roof will act as a giant radio wave reflector. With the house antenna pointing across the roof to the transmitting antenna you may very likely end up with ghosting issues.
Looking at the picture of the antennas location this will hopefully be a minimal issue. Because of the 1:1 slope of your roof and the transmitting antenna being higher most of the reflected radio waves will not reflect towards your antenna.
If ghosting is an issue (and all other sources have been checked out as the cause) try lowering the antenna until it just barely clears the peak of the roof. The higher the antenna, the more it will be effected by reflected radio waves. If that doesnt work then youd probably be looking at having to move the antennas location to the end of the house nearest the transmitter so that it doesnt overlook the roof.
Java "Isnt electronics fun!" phile
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
Awesome!!! and I am very happy to report..I just walked in the door only moments ago,..with a lonnnnnng antenna pole.. [smiley=thumbsup.gif] ;D I decided to check out my local junk yard and after 20mins without finding any aerial bits whatsoever and giving up the search,..on my way out ..from the corner of my eye I spied a nice long pole leaning against the side wall of the massive junk storage shed. It had been squirreld away in a secured area with Strictly No Entry to Public sign. >Originally posted by Javaphile link=1206260940/30#44 date=1206573256UHF is considered to be a LOS (Line Of Sight) frequency range while VHF is over the horizon capable. If the transmitting antenna for the UHF channels is over the horizon to you no matter what you do you may not be able to get a good quality signal. The only thing you can do in that case is increase the height of the pole. Preferably until your antenna has LOS to the transmitter.Originally posted by Remy link=1206260940/30#43 date=1206493316EDITED TO ADD: just realised it is the UHF channels that Im either getting poorly or not at all... the horizontals. ;D
Java "Once upon a time was a radiohead" phile
. So after an equiry,..which required the guy to ring and get permission to sell it(another 10+ mins wait ) and YES! I have myself an new pole for $5!! that is probably at least 600mm longer than the one up there now. So looks like I might be able to fix it approx 750mm in total higher....whoooot!!!!. That will definitely clear the crest of the roof,.. and I can see the tower from here, so if all goes well...I could have a win with this.
Just have to figure out now..how to get up there again and do it. Obviously this was installed before the metal roof,.and the guy must have had the roof cavity to stand in,. times like this,..a regular pitch and/or tiled roof would be noice,.. would be good if I could just lift a tile or two to get some kind of hold in the rafters :
. My husband suggested I could try and detach the pole from within the courtyard, but on closer inspection,. even if I was standing on the very top of a double length ladder,. I dont think I could reach it..a few feet too short me thinks. oooh ooh...I just had a brain wave
,.. my husband and I used to abseil a lot..whaahahaha thats it!!... from inside the courtyard and walk up the wall *snort*. Im gunna suggest this to hubby and see what he reckons. Could even be fun whaahaaha.
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
UHF is considered to be a LOS (Line Of Sight) frequency range while VHF is over the horizon capable. If the transmitting antenna for the UHF channels is over the horizon to you no matter what you do you may not be able to get a good quality signal. The only thing you can do in that case is increase the height of the pole. Preferably until your antenna has LOS to the transmitter.Originally posted by Remy link=1206260940/30#43 date=1206493316EDITED TO ADD: just realised it is the UHF channels that Im either getting poorly or not at all... the horizontals. ;D
Java "Once upon a time was a radiohead" phile
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
Thanks guys,.. well after take two and turning the aerial a tad,.. we have better reception,. but still not great...still one channel missing on my PC tuner and its very poor on the TV... one bar on the reception scale via PC for a moment there,. now none and channel gone again.
Looking at the aerial height in relation to the roof while I was up there,.. I was able to see exactly whether it clears the crest of the roof,..and it doesnt at all atm. I suspect that even if I move the aerial up the pole as far as I can fix it,.. part of the aerial will still be below the crest of the roof,. those horizontal elements particularly I think will still be below.
Sooooooh,.. since Im going to pull the pole right off the house (which will also give me the added advantage of checking everything over properly without fear of hitting concrete fast..at least not from the top of the roof,lol)...I might as well get a longer pole. Does anyone know where I can get one of these from?
EDITED TO ADD: just realised it is the UHF channels that Im either getting poorly or not at all... the horizontals. ;D
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
Originally posted by JavaB link=1206260940/30#39 date=1206491234Remy,
The other thing you could explore is an in-line amp (not a masthead one) which has a built in power supply and feed that into an 8 way passive splitter similar to the one you found......
Oh I should read all the previous posts before posting up :
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
Yeah, just be careful REMY, we want our CS member count going up not down!
Been thinking about it, I think an inline amplifier (which youll need the power supply) with what youve got would do the trick.
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
take two....failed again... I can get up and turn the aerial... but cannot keep a footing and reach up to the U bolt to heighten the darn thing. Theres just nowhere to hang on. grrrr. Gonna try to take the pole down from inside the courtyard,.. fix on pole at good height from roof, then refix to house. Whaaaaaaaa.
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Re: TV Aerials, HD STBs, HD DVB-T Receivers, SAT T
Remy,
An 8 way splitter is a pretty rare beastie..... the readily available ones seem to only go up to 4 way.
The other thing you could explore is an in-line amp (not a masthead one) which has a built in power supply and feed that into an 8 way passive splitter similar to the one you found......
Just as long as you arent running power on the coax it should be fine.
And I hate working on the roof as well..... many years ago it wasnt a problem but Im not as agile as I used to be!
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