I have had a satellite set up for almost 2 years. sometimes I tune it in straight away sometimes it takes a bit longer. The other day in Glen Innes I stuffed around for hours and could not even get a blip. Finally gave up in disgust. I had the dish set up on a pole attached to the draw bar.
Later another bloke turned up and had the same problem, dish was on a pole on draw bar. After quite a while he decided to put the dish on the stand still no luck. Finally decided to peg it down, thus giving a better earth. Would you believe straight away he got a great signal.
Anyway just thought I would pass that little tit bit on. No doubt lots of people know this already but I bet some others don't.
Reason we needed Sat was because we parked up in the sheds at the Show Ground.
D and D said
12:12 AM Feb 18, 2016
I'll have to keep that in mind because our sat dish is also mounted on the draw bar.
Dave
Neil n Chris said
12:52 AM Feb 18, 2016
Very interesting! thank you for that tip, we usually use a tripod but have made up a drawbar pipe only recently for our winter/North trip shortly. Think I might rig an earth connection for it now.
blaze said
05:49 AM Feb 18, 2016
thousands of sat dishes mounted on timber framed houses with tile roofs and no earth connection and work perfectly ok. I fitted them commercially for 10 years
cheers
blaze
Phillipn said
05:59 AM Feb 18, 2016
Something new every day.
Father Christmas, the Easter Bunny and the Tooth Fairy, and now earthing satellite dishes.
-- Edited by Phillipn on Thursday 18th of February 2016 06:05:08 AM
NeilandRaine said
07:14 AM Feb 18, 2016
Phillipn wrote:
Something new every day.
Father Christmas, the Easter Bunny and the Tooth Fairy, and now earthing satellite dishes.
-- Edited by Phillipn on Thursday 18th of February 2016 06:05:08 AM
Hey I just passed on something strange that happened. I know dishes work on houses (But a house is earthed) and most times my dish works on the draw bar. All I did was make a suggestion that is worth trying if you have a problem. Sorry if I offended technical knowalls
blaze said
07:30 AM Feb 18, 2016
a tile roof, timber framed house is insulated from the earth. Power is supplied via the coaxial cable, the inner wire carrying the positive feed and the metal shroud the negative feed. the dish requires no earth or ground plane. The tuning of the dish is critical and after installing hundreds of the buggers, at times I would have one that didn't play ball, a millimetre is all that is needed between a good tune and bad tune and 2 mm is enough at times to give no signal cheers blaze
ps
no offence taken just putting the facts out there
-- Edited by blaze on Thursday 18th of February 2016 07:32:44 AM
Bushpie said
09:27 AM Feb 18, 2016
Great idea Neil........ Thanks for passing it on......... I am thinking however though the pegging it the ground Would make the dish firmer. If mounted on van drawbar its possible the slightest movement makes it harder to align.
Haha but then I could be wrong to............
banjo said
09:47 AM Feb 18, 2016
Yes after also fitting 100's of the things in a previous life too, a phurfy, no earth will change or improve or in fact do anything, as stated by blaze.
More than likely using one of the older DVB-S only rip off sat meters that cannot peak in the Vast, which is DVB-s2 signal properly, but are still sold by unscrupulous dealers as "marriage savers".
Simple answer to the conundrum - operator error.
Again no offence meant.
Phillipn said
04:08 PM Feb 18, 2016
NeilandRaine wrote:
Phillipn wrote:
Something new every day.
Father Christmas, the Easter Bunny and the Tooth Fairy, and now earthing satellite dishes.
-- Edited by Phillipn on Thursday 18th of February 2016 06:05:08 AM
Hey I just passed on something strange that happened. I know dishes work on houses (But a house is earthed) and most times my dish works on the draw bar. All I did was make a suggestion that is worth trying if you have a problem. Sorry if I offended technical knowalls
I thought this was the "just joking" forum.
PeterD said
12:23 AM Feb 19, 2016
NeilandRaine wrote:Hey I just passed on something strange that happened. I know dishes work on houses (But a house is earthed) and most times my dish works on the draw bar. All I did was make a suggestion that is worth trying if you have a problem. Sorry if I offended technical knowalls
If the dish works most times then it will work all the time unless there is some obstruction attenuating the signal. Shifting the dish off the drawbar and placing it on the ground does not alter the grounding. It is grounded through the caravans frame. I think that what you were actually doing was shifting the dish to where it had a good view of the satellite.
It is possible you are not looking in the correct direction to check for clearance. The dishes used in the VAST system are offset dish antennas. Have a look at that link to see the different types of dishes. The axial or front feed dish looks straight at the source of the signal. The offset feed dish has the rays of energy skew off the surface to get to the feed horn. You will note that the radiation is parallel to the support of the feed horn (the blue line.) When you are checking for obstruction in the way of the dish looking at the satellite you should look to where that support on your dish is pointing.
Phillipn said
04:20 PM Feb 19, 2016
NeilandRaine wrote:
Phillipn wrote:
Something new every day.
Father Christmas, the Easter Bunny and the Tooth Fairy, and now earthing satellite dishes.
-- Edited by Phillipn on Thursday 18th of February 2016 06:05:08 AM
Hey I just passed on something strange that happened. I know dishes work on houses (But a house is earthed) and most times my dish works on the draw bar. All I did was make a suggestion that is worth trying if you have a problem. Sorry if I offended technical knowalls
Neil. I suggest you look up SatPlus and check out a Clearsat SF3239 satellite finder. They are set to C1 satellite, no problem finding the satellite, providing their is a clear line of sight to the satellite. No, I am not Father Christmas.
jose said
07:58 AM Feb 28, 2016
house is earthed via power supply,
blaze said
09:04 AM Feb 28, 2016
jose wrote:
house is earthed via power supply,
Correct but the dish is insulated from that supply. The lnb is insulated from the dish
Delta18 said
05:19 PM Feb 29, 2016
Just to show somebody how to align a dish I once rested a dish on my foot (in shoe) and aimed it at the satellite.
Perfect signal obtained.
My leg didn't have an earth strap on it.
Phillipn said
10:46 PM Feb 29, 2016
Delta18 wrote:
Just to show somebody how to align a dish I once rested a dish on my foot (in shoe) and aimed it at the satellite.
Perfect signal obtained.
My leg didn't have an earth strap on it.
Good comment Delta18, you have it right, a lot of people believe anything.
I have had a satellite set up for almost 2 years. sometimes I tune it in straight away sometimes it takes a bit longer. The other day in Glen Innes I stuffed around for hours and could not even get a blip. Finally gave up in disgust. I had the dish set up on a pole attached to the draw bar.
Later another bloke turned up and had the same problem, dish was on a pole on draw bar. After quite a while he decided to put the dish on the stand still no luck. Finally decided to peg it down, thus giving a better earth. Would you believe straight away he got a great signal.
Anyway just thought I would pass that little tit bit on. No doubt lots of people know this already but I bet some others don't.
Reason we needed Sat was because we parked up in the sheds at the Show Ground.
Dave
cheers
blaze
Something new every day.
Father Christmas, the Easter Bunny and the Tooth Fairy, and now earthing satellite dishes.
-- Edited by Phillipn on Thursday 18th of February 2016 06:05:08 AM
Hey I just passed on something strange that happened. I know dishes work on houses (But a house is earthed) and most times my dish works on the draw bar. All I did was make a suggestion that is worth trying if you have a problem. Sorry if I offended technical knowalls
a tile roof, timber framed house is insulated from the earth. Power is supplied via the coaxial cable, the inner wire carrying the positive feed and the metal shroud the negative feed. the dish requires no earth or ground plane.
The tuning of the dish is critical and after installing hundreds of the buggers, at times I would have one that didn't play ball, a millimetre is all that is needed between a good tune and bad tune and 2 mm is enough at times to give no signal
cheers
blaze
ps
no offence taken just putting the facts out there
-- Edited by blaze on Thursday 18th of February 2016 07:32:44 AM
Haha but then I could be wrong to............
More than likely using one of the older DVB-S only rip off sat meters that cannot peak in the Vast, which is DVB-s2 signal properly, but are still sold by unscrupulous dealers as "marriage savers".
Simple answer to the conundrum - operator error.
Again no offence meant.
I thought this was the "just joking" forum.
If the dish works most times then it will work all the time unless there is some obstruction attenuating the signal. Shifting the dish off the drawbar and placing it on the ground does not alter the grounding. It is grounded through the caravans frame. I think that what you were actually doing was shifting the dish to where it had a good view of the satellite.
It is possible you are not looking in the correct direction to check for clearance. The dishes used in the VAST system are offset dish antennas. Have a look at that link to see the different types of dishes. The axial or front feed dish looks straight at the source of the signal. The offset feed dish has the rays of energy skew off the surface to get to the feed horn. You will note that the radiation is parallel to the support of the feed horn (the blue line.) When you are checking for obstruction in the way of the dish looking at the satellite you should look to where that support on your dish is pointing.
Neil. I suggest you look up SatPlus and check out a Clearsat SF3239 satellite finder. They are set to C1 satellite, no problem finding the satellite, providing their is a clear line of sight to the satellite. No, I am not Father Christmas.
house is earthed via power supply,
Correct but the dish is insulated from that supply. The lnb is insulated from the dish
Just to show somebody how to align a dish I once rested a dish on my foot (in shoe) and aimed it at the satellite.
Perfect signal obtained.
My leg didn't have an earth strap on it.
Good comment Delta18, you have it right, a lot of people believe anything.