I need to point my erection at 55.5 degrees east of north. I don’t have a compass. How can I do it and be accurate? It’s 55.4 kms to the transmitter.
This is the direction I need to point my erection. The erection will also include a new masthead amplifier.
This is the existing erection.
This is the new erection. (yet to be mounted)
Oh……. and some purdie flaaaaars.
Woodie said:
I need to point my erection at 55.5 degrees east of north. I don’t have a compass. How can I do it and be accurate? It’s 55.4 kms to the transmitter.This is the direction I need to point my erection. The erection will also include a new masthead amplifier.
This is the existing erection.
This is the new erection. (yet to be mounted)
Oh……. and some purdie flaaaaars.
You’ve got a sight-line there through those three trees. Wouldn’t that do it?
It’s how i aligned the antenna on this place, and it turned out to be spot-on.
The trial and error method works well. But most handy if you have one to watch the TV and one to adjust the antenna, so you don’t have to climb up and down all the time.
Plus/minus ten degrees or so shouldn’t make any difference.
I’ve had enough of the thing going off all the time. Pixelating and squealing, then nothing at all for hours some times. Then all is good and dandy again.
Green is good, orange is dodgy and grey is not at all. Look where my place is.
And you can find out your own at https://myswitch.digitalready.gov.au/
Same antenna as i put on this place. With a signal amp.
I doubt you need to be that accurate. plus you can get a good idea from google maps, the orientation of you house and go from there.
Tried using those signal meter direction finders?
https://www.ebay.com.au/itm/New-DVB-T-Finder-Digital-Aerial-TV-Antenna-Signal-Strength-Meter-Practical/333271248575?hash=item4d9883aebf:g:NMwAAOSwbRldMWbG
That site tells you a lot.
Tau.Neutrino said:
Tried using those signal meter direction finders?https://www.ebay.com.au/itm/New-DVB-T-Finder-Digital-Aerial-TV-Antenna-Signal-Strength-Meter-Practical/333271248575?hash=item4d9883aebf:g:NMwAAOSwbRldMWbG
Or you could buy a half-way decent compass for about the same, and use it for other things. (We’ll talk about compass variation later, mmmm’kay?)
captain_spalding said:
Same antenna as i put on this place. With a signal amp.
It’s supposedly high-gain, Mr S. You get 3 more prongs than the middle one, and 3 mores than that, over the standard one.
Don’t all mobile phones have a compass on them as part of the OS these days?
Woodie said:
captain_spalding said:
Same antenna as i put on this place. With a signal amp.
It’s supposedly high-gain, Mr S. You get 3 more prongs than the middle one, and 3 mores than that, over the standard one.
I went for the big one, too.
We have a TV tower right in Toowoomba, but we’re blocked from it by a ridge. So, we have to point our aerial at the one in the Bunya Mountains, 90 bloody kilometres away.
Rule 303 said:
Don’t all mobile phones have a compass on them as part of the OS these days?
Find an ad free compass app
JudgeMental said:
I doubt you need to be that accurate. plus you can get a good idea from google maps, the orientation of you house and go from there.
I don’t know the orientation of the house without a compass, Mr Mental. Somewhat north/south aligned is about it. And yes, I tried the “compass” app for the phone/tablet but it doesn’t have a magnetometer in it. It tells me I need to be moving to use it. (uses GPS instead).
Tau.Neutrino said:
Tried using those signal meter direction finders?https://www.ebay.com.au/itm/New-DVB-T-Finder-Digital-Aerial-TV-Antenna-Signal-Strength-Meter-Practical/333271248575?hash=item4d9883aebf:g:NMwAAOSwbRldMWbG
Mr TV Aerial Man that I had here had one. The signal is not strong enough to get any accuracy with it.
this $12 Digital tv signal finder has a compass built in
SCLS DVB-T Finder Digital Aerial Terrestrial TV Antenna Signal Strength Meter O1
https://www.ebay.com.au/itm/SCLS-DVB-T-Finder-Digital-Aerial-Terrestrial-TV-Antenna-Signal-Strength-Meter-O1/193248845550?hash=item2cfe875eee:g:vMQAAOSwcita~RQy
Woodie said:
Tau.Neutrino said:
Tried using those signal meter direction finders?https://www.ebay.com.au/itm/New-DVB-T-Finder-Digital-Aerial-TV-Antenna-Signal-Strength-Meter-Practical/333271248575?hash=item4d9883aebf:g:NMwAAOSwbRldMWbG
Mr TV Aerial Man that I had here had one. The signal is not strong enough to get any accuracy with it.
ok
Woodie said:
JudgeMental said:
I doubt you need to be that accurate. plus you can get a good idea from google maps, the orientation of you house and go from there.
I don’t know the orientation of the house without a compass, Mr Mental. Somewhat north/south aligned is about it. And yes, I tried the “compass” app for the phone/tablet but it doesn’t have a magnetometer in it. It tells me I need to be moving to use it. (uses GPS instead).
Well, get on your roof and run around in very small circles.
Woodie said:
JudgeMental said:
I doubt you need to be that accurate. plus you can get a good idea from google maps, the orientation of you house and go from there.
I don’t know the orientation of the house without a compass, Mr Mental. Somewhat north/south aligned is about it. And yes, I tried the “compass” app for the phone/tablet but it doesn’t have a magnetometer in it. It tells me I need to be moving to use it. (uses GPS instead).
look at it on google earth.
captain_spalding said:
Woodie said:
JudgeMental said:
I doubt you need to be that accurate. plus you can get a good idea from google maps, the orientation of you house and go from there.
I don’t know the orientation of the house without a compass, Mr Mental. Somewhat north/south aligned is about it. And yes, I tried the “compass” app for the phone/tablet but it doesn’t have a magnetometer in it. It tells me I need to be moving to use it. (uses GPS instead).
Well, get on your roof and run around in very small circles.
If you can get 2 uhf cbs,
talk to each other as you turn the antenna.
captain_spalding said:
Woodie said:
captain_spalding said:
Same antenna as i put on this place. With a signal amp.
It’s supposedly high-gain, Mr S. You get 3 more prongs than the middle one, and 3 mores than that, over the standard one.
I went for the big one, too.
We have a TV tower right in Toowoomba, but we’re blocked from it by a ridge. So, we have to point our aerial at the one in the Bunya Mountains, 90 bloody kilometres away.
Check that site and see what it says for you.
Tau.Neutrino said:
captain_spalding said:
Woodie said:I don’t know the orientation of the house without a compass, Mr Mental. Somewhat north/south aligned is about it. And yes, I tried the “compass” app for the phone/tablet but it doesn’t have a magnetometer in it. It tells me I need to be moving to use it. (uses GPS instead).
Well, get on your roof and run around in very small circles.
If you can get 2 uhf cbs,
talk to each other as you turn the antenna.
or mobile phones
I could always go for this. Satellite TV. I’m eligible as I’m in a dodgy reception area. Cost is not much different than what I’m spending.
Like this one. But $400 more than what I’m spending.
https://www.satplus.com.au/products/altech-4921-vast-home-satellite-system?variant=743463115
Woodie said:
Check that site and see what it says for you.
Just did that.
It says ‘point your antenna at the Bunya mountains’.
The nearest TV tower is just off-map, to the right.
Tau.Neutrino said:
Tau.Neutrino said:
captain_spalding said:Well, get on your roof and run around in very small circles.
If you can get 2 uhf cbs,
talk to each other as you turn the antenna.
or mobile phones
Actually, i saw an alternative solution to just this situation in an old Pop. Mechs the other night.
Shout down a length of garden hose.
“You have ethnic groups and they all communicate using Kukatja as a lingua franca, as a contact language, and that is very unique,” Dr Berscia said.
“Nowadays it is very difficult to find these original multilingual societies.
“You find some of them in the Amazon, in western Africa, and you find some of them also here in Australia so these can tell us a lot about the formation of languages.”
https://www.abc.net.au/news/2019-12-29/researchers-map-ancient-languages-in-west-australian-outback/11760406
I’d grab the hat of pedantry but c_s has got it.
Tau.Neutrino said:
Tau.Neutrino said:
captain_spalding said:Well, get on your roof and run around in very small circles.
If you can get 2 uhf cbs,
talk to each other as you turn the antenna.
or mobile phones
Mobile phones don’t work here.
You house faces just a tad north of east.
sibeen said:
“You have ethnic groups and they all communicate using Kukatja as a lingua franca, as a contact language, and that is very unique,” Dr Berscia said.“Nowadays it is very difficult to find these original multilingual societies.
“You find some of them in the Amazon, in western Africa, and you find some of them also here in Australia so these can tell us a lot about the formation of languages.”
https://www.abc.net.au/news/2019-12-29/researchers-map-ancient-languages-in-west-australian-outback/11760406
I’d grab the hat of pedantry but c_s has got it.
That’ll learn me :)
sibeen said:
“You have ethnic groups and they all communicate using Kukatja as a lingua franca, as a contact language, and that is very unique,” Dr Berscia said.“Nowadays it is very difficult to find these original multilingual societies.
“You find some of them in the Amazon, in western Africa, and you find some of them also here in Australia so these can tell us a lot about the formation of languages.”
https://www.abc.net.au/news/2019-12-29/researchers-map-ancient-languages-in-west-australian-outback/11760406
I’d grab the hat of pedantry but c_s has got it.
I put it back on the rack. Dunno what happened to it after that.
Woodie said:
I could always go for this. Satellite TV. I’m eligible as I’m in a dodgy reception area. Cost is not much different than what I’m spending.Like this one. But $400 more than what I’m spending.
https://www.satplus.com.au/products/altech-4921-vast-home-satellite-system?variant=743463115
I think we’re paying about $50/month for basic Foxtel over satellite, which includes most of the free-to-air channels, about half the Foxtel channels, and Netflix and such. Very good quality service, only goes out when a big storm cell goes right over the top of us.
captain_spalding said:
Tau.Neutrino said:
Tau.Neutrino said:If you can get 2 uhf cbs,
talk to each other as you turn the antenna.
or mobile phones
Actually, i saw an alternative solution to just this situation in an old Pop. Mechs the other night.
Shout down a length of garden hose.
I’ve got the hose. :) Just need someone at the other end.
JudgeMental said:
You house faces just a tad north of east.
How much is a tad?
Woodie said:
JudgeMental said:You house faces just a tad north of east.
How much is a tad?
Bit shy of a freckle.
sibeen said:
Woodie said:
JudgeMental said:You house faces just a tad north of east.
How much is a tad?
Bit shy of a freckle.
Three bee’s dicks, or half a smidgeon.
Rule 303 said:
Woodie said:
I could always go for this. Satellite TV. I’m eligible as I’m in a dodgy reception area. Cost is not much different than what I’m spending.Like this one. But $400 more than what I’m spending.
https://www.satplus.com.au/products/altech-4921-vast-home-satellite-system?variant=743463115
I think we’re paying about $50/month for basic Foxtel over satellite, which includes most of the free-to-air channels, about half the Foxtel channels, and Netflix and such. Very good quality service, only goes out when a big storm cell goes right over the top of us.
I’m not paying anything on a periodic basis to watch tele. I’m claiming religious exemption (I worship my Swannies) and refuse to provide them with my service. And those sorts of services don’t provide ALL Swannies matches.
Woodie said:
Rule 303 said:
Woodie said:
I could always go for this. Satellite TV. I’m eligible as I’m in a dodgy reception area. Cost is not much different than what I’m spending.Like this one. But $400 more than what I’m spending.
https://www.satplus.com.au/products/altech-4921-vast-home-satellite-system?variant=743463115
I think we’re paying about $50/month for basic Foxtel over satellite, which includes most of the free-to-air channels, about half the Foxtel channels, and Netflix and such. Very good quality service, only goes out when a big storm cell goes right over the top of us.
I’m not paying anything on a periodic basis to watch tele. I’m claiming religious exemption (I worship my Swannies) and refuse to provide them with my service. And those sorts of services don’t provide ALL Swannies matches.
If you want all Swannies matches get Kayo.
… but you do need an internet connection that can handle live streaming.
It’s $25 monthly but you get two devices on your login. I share with a mate so we only pay $12.50 each. I have dropped everything else, Netflix etc. All the AFL matches, all the cricket, all the Formula 1 races. I don’t need much more.
Woodie said:
Tau.Neutrino said:
Tau.Neutrino said:If you can get 2 uhf cbs,
talk to each other as you turn the antenna.
or mobile phones
Mobile phones don’t work here.
The sat nav on mobile phones and or pad is passive, doesn’t need an internet connection to work.
Woodie said:
Rule 303 said:
Woodie said:
I could always go for this. Satellite TV. I’m eligible as I’m in a dodgy reception area. Cost is not much different than what I’m spending.Like this one. But $400 more than what I’m spending.
https://www.satplus.com.au/products/altech-4921-vast-home-satellite-system?variant=743463115
I think we’re paying about $50/month for basic Foxtel over satellite, which includes most of the free-to-air channels, about half the Foxtel channels, and Netflix and such. Very good quality service, only goes out when a big storm cell goes right over the top of us.
I’m not paying anything on a periodic basis to watch tele. I’m claiming religious exemption (I worship my Swannies) and refuse to provide them with my service. And those sorts of services don’t provide ALL Swannies matches.
Ahhh.
Peak Warming Man said:
Woodie said:
Tau.Neutrino said:or mobile phones
Mobile phones don’t work here.
The sat nav on mobile phones and or pad is passive, doesn’t need an internet connection to work.
I use maps.me for navigation or gps positioning. It’s free and uses no data it’s a passive satellite ap.
2 UHF CBs for $20 at jaycar
have someone look at the TV while you turn the antenna
https://www.jaycar.com.au/0-5w-80-channel-uhf-cb-red-blue-twin-pack/p/DC1017
party_pants said:
Woodie said:
Rule 303 said:I think we’re paying about $50/month for basic Foxtel over satellite, which includes most of the free-to-air channels, about half the Foxtel channels, and Netflix and such. Very good quality service, only goes out when a big storm cell goes right over the top of us.
I’m not paying anything on a periodic basis to watch tele. I’m claiming religious exemption (I worship my Swannies) and refuse to provide them with my service. And those sorts of services don’t provide ALL Swannies matches.
If you want all Swannies matches get Kayo.
… but you do need an internet connection that can handle live streaming.
It’s $25 monthly but you get two devices on your login. I share with a mate so we only pay $12.50 each. I have dropped everything else, Netflix etc. All the AFL matches, all the cricket, all the Formula 1 races. I don’t need much more.
I’m on satellite webernets Mr Panty Parts. It handles live streaming OK, but chews my meagre quota. Original NBN had “price parity” in it, but Mr Abbot (with the support of the Nationals somehow) put a stop to that. Cost me 3 – 4 times as much as terrestrial NBN. 45GB for $49.95 25mb down, 5mb up.
Tau.Neutrino said:
2 UHF CBs for $20 at jaycarhave someone look at the TV while you turn the antenna
https://www.jaycar.com.au/0-5w-80-channel-uhf-cb-red-blue-twin-pack/p/DC1017
We used to shout at each other up and down the chimney at Hawkesdale. When the antenna was set up here we paid someone to do it.
Peak Warming Man said:
Woodie said:
Tau.Neutrino said:or mobile phones
Mobile phones don’t work here.
The sat nav on mobile phones and or pad is passive, doesn’t need an internet connection to work.
Yeah. Sat nav works on the tablet, Mr Man. But satnav not much good for chatting rooftop to TV.
Woodie said:
Peak Warming Man said:
Woodie said:Mobile phones don’t work here.
The sat nav on mobile phones and or pad is passive, doesn’t need an internet connection to work.
Yeah. Sat nav works on the tablet, Mr Man. But satnav not much good for chatting rooftop to TV.
No but will give you direction for your antenna.
Well…… I’d better get erecting.
Watch this space. If I don’t report back in a cuppla days, can someone call an ambulance? Coz I’ve probably fallen off the roof.
Mr Woo, try this easy method..
Find North with Sticks and Shadows – Navigation without a Compass
.
Or if too hot in Mumbblmunbmmgunt sun… wait till night, locate Southern Cross…..
Peak Warming Man said:
Woodie said:
Peak Warming Man said:The sat nav on mobile phones and or pad is passive, doesn’t need an internet connection to work.
Yeah. Sat nav works on the tablet, Mr Man. But satnav not much good for chatting rooftop to TV.
No but will give you direction for your antenna.
My satnavs (both tablet and car) only give me N, NE, E, SE, S, SW, W and NW. And you’ve got to be moving for them to tell you that.
Woodie said:
party_pants said:
Woodie said:I’m not paying anything on a periodic basis to watch tele. I’m claiming religious exemption (I worship my Swannies) and refuse to provide them with my service. And those sorts of services don’t provide ALL Swannies matches.
If you want all Swannies matches get Kayo.
… but you do need an internet connection that can handle live streaming.
It’s $25 monthly but you get two devices on your login. I share with a mate so we only pay $12.50 each. I have dropped everything else, Netflix etc. All the AFL matches, all the cricket, all the Formula 1 races. I don’t need much more.
I’m on satellite webernets Mr Panty Parts. It handles live streaming OK, but chews my meagre quota. Original NBN had “price parity” in it, but Mr Abbot (with the support of the Nationals somehow) put a stop to that. Cost me 3 – 4 times as much as terrestrial NBN. 45GB for $49.95 25mb down, 5mb up.
Yes, I suspected something like that with your internets.
Still, people in the bush are there because they want to be there…. :)
Ian said:
Mr Woo, try this easy method..Find North with Sticks and Shadows – Navigation without a Compass
.
Or if too hot in Mumbblmunbmmgunt sun… wait till night, locate Southern Cross…..
or check a tree to see what side the moss is growing on.
smartphone > compass app
JudgeMental said:
Ian said:
Mr Woo, try this easy method..Find North with Sticks and Shadows – Navigation without a Compass
.
Or if too hot in Mumbblmunbmmgunt sun… wait till night, locate Southern Cross…..
or check a tree to see what side the moss is growing on.
or one could always consult their wristwatch.
Print out a Degree compass from the net and overlay it with a google earth picture with the north arrow highlighted, use a ruler to extend the line out and will make it more accurate.
Take out the stress from installing your digital TV antenna by using this DVB-T signal strength meter. No more multiple trips up to your roof to get that perfect picture. Connect the pocket sized DVB-T signal strength meter and adjust the angle of your digital TV antenna, the easy to read LED indicator lets you know when you’ve hit the right spot. Adaptors included.
https://www.jaycar.com.au/digital-tv-signal-strength-meter/p/LT3332
ruby said:
Take out the stress from installing your digital TV antenna by using this DVB-T signal strength meter. No more multiple trips up to your roof to get that perfect picture. Connect the pocket sized DVB-T signal strength meter and adjust the angle of your digital TV antenna, the easy to read LED indicator lets you know when you’ve hit the right spot. Adaptors included.https://www.jaycar.com.au/digital-tv-signal-strength-meter/p/LT3332
Ahem. We have done a Buffy-Kryten. That advice was obviously from a Fish Slapping Maniac.
Well, I’ve fucked that up completely now. The new masthead amplifier is NBG. It’s only 15Db whereas the old one is switchable 20Db or 30 Db. Whatever all that means. Get nothing whatsoever with the new masthead amp. Plug the old one back in and upstairs only gets ABC and Prime. Nothing else. not even pixels.The main aerial plug downstairs don’t work at all. I’ll plug the old aerial back on tomorrow, and see if I can get back at least what I had.
Woodie said:
Well, I’ve fucked that up completely now. The new masthead amplifier is NBG. It’s only 15Db whereas the old one is switchable 20Db or 30 Db. Whatever all that means. Get nothing whatsoever with the new masthead amp. Plug the old one back in and upstairs only gets ABC and Prime. Nothing else. not even pixels.The main aerial plug downstairs don’t work at all. I’ll plug the old aerial back on tomorrow, and see if I can get back at least what I had.
Oh dear, erectile dysfunction after all that effort.
Woodie said:
Well, I’ve fucked that up completely now. The new masthead amplifier is NBG. It’s only 15Db whereas the old one is switchable 20Db or 30 Db. Whatever all that means. Get nothing whatsoever with the new masthead amp. Plug the old one back in and upstairs only gets ABC and Prime. Nothing else. not even pixels.The main aerial plug downstairs don’t work at all. I’ll plug the old aerial back on tomorrow, and see if I can get back at least what I had.
Err the difference between 15 dB and 20 dB is rather largeish. Like about 3 times the gain for the 20. The thirty dB is going to be 30 times the gain of the 15 dB amp.
sibeen said:
Woodie said:
Well, I’ve fucked that up completely now. The new masthead amplifier is NBG. It’s only 15Db whereas the old one is switchable 20Db or 30 Db. Whatever all that means. Get nothing whatsoever with the new masthead amp. Plug the old one back in and upstairs only gets ABC and Prime. Nothing else. not even pixels.The main aerial plug downstairs don’t work at all. I’ll plug the old aerial back on tomorrow, and see if I can get back at least what I had.
Err the difference between 15 dB and 20 dB is rather largeish. Like about 3 times the gain for the 20. The thirty dB is going to be 30 times the gain of the 15 dB amp.
Oh dear.
So what does all this mean, Beeny Boy?
This antenna gives approximately 8-10dB of signal gain, with >0.5dB in gain variation over the operating frequency range. It offers a beam width of 61° for VHF and 32° for UHF, with a min return loss of -10dB for VHF and -8dB for UHF. (BTW, I didn’t buy this one).
looks like horizontal polarization so do same with new yagi thing
sibeen said:
Woodie said:
Well, I’ve fucked that up completely now. The new masthead amplifier is NBG. It’s only 15Db whereas the old one is switchable 20Db or 30 Db. Whatever all that means. Get nothing whatsoever with the new masthead amp. Plug the old one back in and upstairs only gets ABC and Prime. Nothing else. not even pixels.The main aerial plug downstairs don’t work at all. I’ll plug the old aerial back on tomorrow, and see if I can get back at least what I had.
Err the difference between 15 dB and 20 dB is rather largeish. Like about 3 times the gain for the 20. The thirty dB is going to be 30 times the gain of the 15 dB amp.
I thought all these masthead amplifiers were all the same. Apparently not.
This one is 43 Db. https://www.kingray.net.au/catalogue/amplifiers/masthead-amplifiers/mhw43fs.aspx Will I blow up my TV? :)
transition said:
looks like horizontal polarization so do same with new yagi thing
if original being replaced is right
masthead amp just compensates for losses in coax going from masthead amp down to tv or distribution system
losses are worst on highest frequency tv channels, and furthest from amp
shit coax has high losses
transition said:
masthead amp just compensates for losses in coax going from masthead amp down to tv or distribution system
sucks air through teeth
sibeen said:
transition said:masthead amp just compensates for losses in coax going from masthead amp down to tv or distribution system
sucks air through teeth
Pretty sure that’s wrong.
Rule 303 said:
sibeen said:
transition said:masthead amp just compensates for losses in coax going from masthead amp down to tv or distribution system
sucks air through teeth
Pretty sure that’s wrong.
Nah, I can definitely suck air through my teeth.
tests sucking sound
Yep.
sibeen said:
Rule 303 said:
sibeen said:sucks air through teeth
Pretty sure that’s wrong.
Nah, I can definitely suck air through my teeth.
tests sucking sound
Yep.
I didn’t say you couldn’t do it – I said I’m pretty sure it’s wrong.
Woodie said:
I thought all these masthead amplifiers were all the same. Apparently not.
This one is 43 Db. https://www.kingray.net.au/catalogue/amplifiers/masthead-amplifiers/mhw43fs.aspx Will I blow up my TV? :)
Just clicked “buy now” on that one. Will need to wait for it to turn up, but.
Also replacing all the PAL connectors with F type.
sibeen said:
Rule 303 said:
sibeen said:sucks air through teeth
Pretty sure that’s wrong.
Nah, I can definitely suck air through my teeth.
tests sucking sound
Yep.
all it does, the addition of another amp, wideband, adds to noise, it’s unlikely to provide signal to noise improvement over the front end of tv receiver, other than to amplify signal before it’s lost from coax losses
transition said:
sibeen said:
Rule 303 said:Pretty sure that’s wrong.
Nah, I can definitely suck air through my teeth.
tests sucking sound
Yep.
all it does, the addition of another amp, wideband, adds to noise, it’s unlikely to provide signal to noise improvement over the front end of tv receiver, other than to amplify signal before it’s lost from coax losses
Yes, it will ad to the noise, but if a TV or other receiver is designed for a minimum amount of signal then getting above that threshold is more the point, especially with a digital style system.
sibeen said:
transition said:
sibeen said:Nah, I can definitely suck air through my teeth.
tests sucking sound
Yep.
all it does, the addition of another amp, wideband, adds to noise, it’s unlikely to provide signal to noise improvement over the front end of tv receiver, other than to amplify signal before it’s lost from coax losses
Yes, it will ad to the noise, but if a TV or other receiver is designed for a minimum amount of signal then getting above that threshold is more the point, especially with a digital style system.
generally the only improvement is compensation for line losses, the masthead amplifier isn’t likely to have better performance than the front-end of tv receiver, certainly not when you add both.
just a few metres of crap coax at higher uhf substantially attenuates signal
sibeen said:
transition said:
sibeen said:Nah, I can definitely suck air through my teeth.
tests sucking sound
Yep.
all it does, the addition of another amp, wideband, adds to noise, it’s unlikely to provide signal to noise improvement over the front end of tv receiver, other than to amplify signal before it’s lost from coax losses
Yes, it will ad to the noise, but if a TV or other receiver is designed for a minimum amount of signal then getting above that threshold is more the point, especially with a digital style system.
Nobody in this village gets TV reception without a masthead amplifier.
Michael V said:
sibeen said:
transition said:all it does, the addition of another amp, wideband, adds to noise, it’s unlikely to provide signal to noise improvement over the front end of tv receiver, other than to amplify signal before it’s lost from coax losses
Yes, it will ad to the noise, but if a TV or other receiver is designed for a minimum amount of signal then getting above that threshold is more the point, especially with a digital style system.
Nobody in this village gets TV reception without a masthead amplifier.
sounds like a threat!
Michael V said:
sibeen said:
transition said:all it does, the addition of another amp, wideband, adds to noise, it’s unlikely to provide signal to noise improvement over the front end of tv receiver, other than to amplify signal before it’s lost from coax losses
Yes, it will ad to the noise, but if a TV or other receiver is designed for a minimum amount of signal then getting above that threshold is more the point, especially with a digital style system.
Nobody in this village gets TV reception without a masthead amplifier.
JudgeMental said:
Michael V said:
sibeen said:Yes, it will ad to the noise, but if a TV or other receiver is designed for a minimum amount of signal then getting above that threshold is more the point, especially with a digital style system.
Nobody in this village gets TV reception without a masthead amplifier.
sounds like a threat!
:)
No threat. It’s a reality.
advantages of masthead amp, with enough gain, is you can go long lengths with shit coax etc, the other advantage might be it raises the signal level above noise that might get into the signal line, local noise from devices or whatever (again more substantial problem with shit coax etc)
as you raise an antenna to get a signal, you lose the signal strength through transmission line losses as line length increases, so you boost up top as near to antenna as possible. The length of coax between them has losses also, so is kept short
with a distribution system, multiple outlets in house or whatever, you need enough gain upfront to accommodate the longest length or whatever
so you know, you can use crap coax, shit plugs/connectors(not constant impedance), the galahs can chew it, some moisture can get in, a few kinks, deformations, loose fittings, some corrosion, split the signal a few times, go quite a distance with some chance of having a usable signal
the higher the frequency the more shit the coax is, largely because of skin effect I guess, other things too
This thread is far less fun than the title suggests.
Arts said:
This thread is far less fun than the title suggests.
Perzacterly, Aunty Art. Nobody said nuffin’ bout my purdie flaaaaars. 😢
Woodie said:
Arts said:
This thread is far less fun than the title suggests.
Perzacterly, Aunty Art. Nobody said nuffin’ bout my purdie flaaaaars. 😢
They are pretty and that verandah looks a cosy place to sit in the cool of the evening.
Bubblecar said:
Woodie said:
Arts said:
This thread is far less fun than the title suggests.
Perzacterly, Aunty Art. Nobody said nuffin’ bout my purdie flaaaaars. 😢
They are pretty and that verandah looks a cosy place to sit in the cool of the evening.
I even have my own rocking chair, Parpyone. :)
Arts said:
This thread is far less fun than the title suggests.
;)
roughbarked said:
Arts said:
This thread is far less fun than the title suggests.
;)
Oh come on… Woodie’s got a new direction.
How is that not fun?
Rule 303 said:
roughbarked said:
Arts said:
This thread is far less fun than the title suggests.
;)
Oh come on… Woodie’s got a new direction.
How is that not fun?
My impression thus far was that all he had was a stiff mast. AFAICS, he’s still having problems with directions.
roughbarked said:
Rule 303 said:
roughbarked said:;)
Oh come on… Woodie’s got a new direction.
How is that not fun?
My impression thus far was that all he had was a stiff mast. AFAICS, he’s still having problems with directions.
Woodie’s having trouble with more than one new direction now?
If you’re not getting the ‘new direction’ thing, I’m not going to explain it.
Rule 303 said:
roughbarked said:
Rule 303 said:Oh come on… Woodie’s got a new direction.
How is that not fun?
My impression thus far was that all he had was a stiff mast. AFAICS, he’s still having problems with directions.
Woodie’s having trouble with more than one new direction now?
If you’re not getting the ‘new direction’ thing, I’m not going to explain it.
no need. ;)
Well, all channels are working all OK on all teles ATM. crosses fingers We’ll see how the evening progresses.
Rule No 1. Make sure ALL your connectors and plugs have continuous connectivity of the cable shielding as well. One dodgy shielding connection, particularly between the power supply and the masthead amp AND then to the aerial will cause you havoc.
All PAL connections being replaced with F1 type connectors.
Current config of my new erection? New aerial, old masthead amp.
>Rule No 1. Make sure ALL your connectors and plugs have continuous connectivity of the cable shielding as well. One dodgy shielding connection, particularly between the power supply and the masthead amp AND then to the aerial will cause you havoc.
no power to the (dead) amp and TV signal is fairly much entirely blocked
