It Was Worth The Try.

TJExcalibur

Sleepy Hollow
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Out of this world.
My Satellite Setup
Master Focus 90cm .Gigablue UHD Quad 4K on TM 2600 motor. *Tm 5402 HD M3, *Atemio Nemesis. *Not Used.
My Location
Southern England
#1
After many days checking, measuring, scanning and repeating the process several times there is no way I am able to receive much on the C band precision. Today i fitted a Titanium LNB. It was better but not enough to get a lock on most satellites. The only decent one was 55 west with 27 + TV and loads of radio channels. Get the odd one in the region of 8 west to 14 east but unable to lock on with the meter or satellite receiver. No more time so I have decided to move on as I have lots of work to do around the house and garden. Yes I will lose money but will finish the painting etc, swoping a few bolts for ss and sell it on.
 

st1

SMC-dish aficionado
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My Satellite Setup
Mostly SMC dishes pointing at 28.2E
My Location
Nordsjælland, Denmark
#2
Are you saying that with a 1.8m precision dish, you cannot get any C-band reception apart from 27 TV channels on 55W?
Although I haven't got a 1.8 with C-band LNB, I should think you should be able to get a lot more than what you've got so far.
I do appreciate spending time on someting else. But perhaps you should park this project, and come back to it in a week or two?
 

moonbase

Small Dish Man
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1,613
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1,474
My Satellite Setup
1.25m Unicorn
My Location
UK
#3
Are you saying that with a 1.8m precision dish, you cannot get any C-band reception apart from 27 TV channels on 55W?
Although I haven't got a 1.8 with C-band LNB, I should think you should be able to get a lot more than what you've got so far.
I do appreciate spending time on someting else. But perhaps you should park this project, and come back to it in a week or two?

st1,

As far as I know, it is the line of sight to the satellites that are causing the problems for TJ. He has a lot of trees in leaf across the arc. It's not the dish setup, it is the blocking of signals by trees.
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
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24,666
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5,390
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
#4
Leaves are not the issue with the install.

As per ST1, put all on hold and I'll pop down at the end of the month to assist.
You are 80% there, just a bit of fine tuning.
 

TJExcalibur

Sleepy Hollow
Messages
1,611
Likes
971
Location
Out of this world.
My Satellite Setup
Master Focus 90cm .Gigablue UHD Quad 4K on TM 2600 motor. *Tm 5402 HD M3, *Atemio Nemesis. *Not Used.
My Location
Southern England
#5
Here are some photos from the scaler ring centre showing what the dish is pointing at.
 

Attachments

John

Enthusiast.
Messages
1,825
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2,956
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
#6
Leaves are not the issue with the install.

As per ST1, put all on hold and I'll pop down at the end of the month to assist.
You are 80% there, just a bit of fine tuning.



After seeing those pics i would tend to agree. Any chance of just a single shot TJ of just the Precision showing ground up to top of dish without giving away anything that might be private in it's surroundings.
 

aceb

Specialist Contributor
Messages
1,398
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730
My Satellite Setup
Prof Tuner 7301 /
1.25m Gibertini + Inverto B.Ultra/C1W, Moteck H180, 68.5E-67W Ku/C-Band /
1.8m Precision PF + ESX241/Inverto Black Pro, 66E-63W Ku/C-band /
2.4m Fortec Star+Titanium C1W/Pride plate, 49E-58W
My Location
Sussex
#7
Something is amiss if you aren't getting 5W or 20E, a 1.8 Precision with a Tit-PLL is good enough for at least 20 sats on C-Band. The low angle stuff may suffer due to LoS but the higher sats close to the top of the arc should be solid. 5W is an easy catch using a 1.2 Precision.
 

Captain Jack

Модератор
Staff member
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My Satellite Setup
See signature
My Location
North Somerset
#8
55W is linear. Are you using depolariser plate for other satellites? Almost all are circular polarised, except 46E, 38E, 37.5W, 55W and 58W.
 

TJExcalibur

Sleepy Hollow
Messages
1,611
Likes
971
Location
Out of this world.
My Satellite Setup
Master Focus 90cm .Gigablue UHD Quad 4K on TM 2600 motor. *Tm 5402 HD M3, *Atemio Nemesis. *Not Used.
My Location
Southern England
#9
Only getting 55w across the arc. Will put in the plate and do a re scan.

OK not any better. Maybe I am missing something but time to call it a day. Thanks for the help but when it gets beyond comprehension i find it best to do something more enjoyable.
 
Last edited:

TJExcalibur

Sleepy Hollow
Messages
1,611
Likes
971
Location
Out of this world.
My Satellite Setup
Master Focus 90cm .Gigablue UHD Quad 4K on TM 2600 motor. *Tm 5402 HD M3, *Atemio Nemesis. *Not Used.
My Location
Southern England
#10
After seeing those pics i would tend to agree. Any chance of just a single shot TJ of just the Precision showing ground up to top of dish without giving away anything that might be private in it's surroundings.
The only thing that is private is the Overseer sunbathing, best avoided. Photos at 55w.
 

Attachments

John

Enthusiast.
Messages
1,825
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2,956
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
#11
The only thing that is private is the Overseer sunbathing, best avoided. Photos at 55w.




Firstly TJ, nice tidy install.
Secondly re: sunbathing - you really must let me be the judge of that :D
 

moonbase

Small Dish Man
Messages
1,613
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My Satellite Setup
1.25m Unicorn
My Location
UK
#12
Leaves are not the issue with the install.

I was basing my comment on the information in the other topic by TJ where he states he has a poor visibility arc due to trees. Having now seen the treeline and clear sky picture attached to this topic I agree, its not the leaves, there is some technical issue that hopefully is easily resolved.

TJ,

That's a nice install, neat and tidy and it looks fit for purpose. Hopefully you can get whatever issue there is resolved and get decent signal capture for the satellites that are visible.. Well done, you have made a good job of the setup.
 

Terryl

Specialist Contributor
Messages
2,059
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1,449
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
#13
I checked on the size needed for 34W (Intelsat 35e) it comes up as the recommended size dish for "C" band is 2.9 meters for a location in London.(I don't know your exact location, but I think you are in the UK)(tell me if I'm off on that)

It could be that your dish is too small for good "C" reception on most of the birds carrying "C" band that you can see from your location.

I tried for "C" band on a 1 meter dish, then a 1.8, gave up and went with a 3 meter, have no problems now.
 

Terryl

Specialist Contributor
Messages
2,059
Likes
1,449
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
#14
Oh one more thing, back in my 7 GHz days testing for TV up-link to the transmitters I found that some microwave signals did not like the color green, I found this out when one of the secretary's at work walked between a test setup wearing a green dress.(green leaves can cause signal loss)

The test data print outs looked funny, random drop outs in the signal strength, I thought it was due to people walking in front of the receive dish, (very low power tests) but found that not to be true, until she walked in front of the dish, the signal dropped out.(receiver muted due to too low a signal)

Others were walking in front of the dish(it was online with the walkway to the break room) and did not cause a dropout, only her, she was wearing a green dress, the next day she was wearing a pink one, she did not cause a drop out then.

So back to your problems, it could be that your choice of colors on the dish (green??) may be affecting the signals in some way, try some flat gray primer, see if I am wrong.
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
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24,666
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My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
#15
Oh one more thing, back in my 7 GHz days testing for TV up-link to the transmitters I found that some microwave signals did not like the color green, I found this out when one of the secretary's at work walked between a test setup wearing a green dress.(green leaves can cause signal loss)

The test data print outs looked funny, random drop outs in the signal strength, I thought it was due to people walking in front of the receive dish, (very low power tests) but found that not to be true, until she walked in front of the dish, the signal dropped out.(receiver muted due to too low a signal)

Others were walking in front of the dish(it was online with the walkway to the break room) and did not cause a dropout, only her, she was wearing a green dress, the next day she was wearing a pink one, she did not cause a drop out then.

So back to your problems, it could be that your choice of colors on the dish (green??) may be affecting the signals in some way, try some flat gray primer, see if I am wrong.
Interesting. Do you have any data or corroborating stuff ?

She might have worn foil underwear on those green days of course.
 

scopus

Specialist Contributor
Messages
1,730
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2,383
My Satellite Setup
Primesat/Famaval 1.8 PF C/ku/Ka, Octagon SX8HD1, SX88, Openbox S3 Mini HD-V8S Freesat V7 HD-V8 Finder, Amiko A4K Combo, Satlook Colour HD Spectrum, Sansui A909 Amp and BOSE Acoustimass speakers for the audio.
My Location
Staffs UK
#16
I painted my old Precision 1.8 green, never noticed any signal loss.
One thing with it being a darker colour it really absorbed the suns heat and it got very hot a sunny day. White keeps the dish much cooler..
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
24,666
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5,390
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
#17
I painted my old Precision 1.8 green, never noticed any signal loss.
One thing with it being a darker colour it really absorbed the suns heat and it got very hot a sunny day. White keeps the dish much cooler..
If the dish is metal it can expand and change the focal parameters away from a parabola. if distorted previously then it might cause trouble with focal pointing.

But not at 5GHz frequencies unless a magnitude above 1.8m
 

Terryl

Specialist Contributor
Messages
2,059
Likes
1,449
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
#18
Interesting. Do you have any data or corroborating stuff ?

She might have worn foil underwear on those green days of course.
Nope, no data, that was over 30 years ago, data files would be long gone as that company is out of business.

No way to prove it now unless I could get access to a dish farm and some signal generators.

And yes flat white is the best but makes them stand out on houses, flat gray was the choice for most dish makers.
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
24,666
Likes
5,390
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
#19
Nope, no data, that was over 30 years ago, data files would be long gone as that company is out of business.

No way to prove it now unless I could get access to a dish farm and some signal generators.

And yes flat white is the best but makes them stand out on houses, flat gray was the choice for most dish makers.
Fibreglass / SMC suffers less than the equivalent metal versions, but for some reason almost all compound antennas are constructed with white material. Perhaps the manufacturers know they can sell more feedhorn caps.
 
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