Possible arc issue or neighbours' extension blocking the way

Chr0nik

Chr0nik

Member
Messages
96
My Satellite Setup
TM-9100 Linux receiver / Edision OS mini 4K / TM-2600 M3 motor / 110cm dish (34.5w to 50e) - 100cm dish (51.5e/52e/53e/60e)
My Location
Grays, Essex
Hi,

Until yesterday, I had 100cm dish (the one on the floor) mounted to a TM2100A motor andI was able to get most of satellites on the east and everything until 15w. I did not get all of the arc because the dish was pretty rubbish and always struggled to get the elevation right as it would not stay in place.

However, today I received a new 110cm dish and a TM2600 M3 motor (also using Diseqc 1.2 instead of Usals) and got it mounted and all and can get all of the east satellites but nothing past 8w. I get 100% on Thor but I'm unable to get 14w, 15w and 30w. The image I've posted shows that there's an extension to the house next door but I'm not sure if that's enough to block 30w but I was able to get 15w with the old dish.

Any advice? I'm nervous of moving the dish as I currently get 60e to 8w but would really like get all the way to 30w. I'm based in Grays, Essex.
 

Attachments

Analoguesat

Analoguesat

Administrator
Staff member
Messages
48,371
Location
Scottish Borders
My Satellite Setup
TM 5402HD
Skybox F3
Sky+ UK.
My Location
Scottish Borders
That does not look very stable! A good gale and the whole lot will be on the ground in a crumpled heap.....
 
Chr0nik

Chr0nik

Member
Messages
96
My Satellite Setup
TM-9100 Linux receiver / Edision OS mini 4K / TM-2600 M3 motor / 110cm dish (34.5w to 50e) - 100cm dish (51.5e/52e/53e/60e)
My Location
Grays, Essex
That does not look very stable! A good gale and the whole lot will be on the ground in a crumpled heap.....
It does look like it's not very stable but had the mount on the roof almost at the edge and not on the pallet during the storms a couple of weeks ago and it, thankfully, did not tip over. The mount is tied up to the pallet plus the weight on top so hopefully it won't move.
 
A

a33

Specialised Contributor
Messages
708
My Satellite Setup
XSAT410
Rebox RE-9000
My Location
NL
However, today I received a new 110cm dish and a TM2600 M3 motor (also using Diseqc 1.2 instead of Usals) and got it mounted and all and can get all of the east satellites but nothing past 8w.
That would indicate that your motor zero is not properly aligned with your dish and with due south, I guess.
Edit: Or a non-plumb mast east-west-wards, to begin with.

but I'm not sure if that's enough to block 30w
See dishpointer.com, and position your antenna location exactly at map.


BTW: Why don't you use USALS?
Should work OK, when the motor is setup well. And alignment to south is even easier...

(And, just curious: is the motor to LNB cable long enough, when attached this way?)

Greetz,
A33
 
Terryl

Terryl

Specialist Contributor
Messages
2,718
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.
For a non penetrating roof mount for a satellite dish using cement blocks, the correct offset weight should be 10 each 8"x8"x16 " cement blocks, or about 280 pounds. (standard building block is about 28 pounds)
 
Analoguesat

Analoguesat

Administrator
Staff member
Messages
48,371
Location
Scottish Borders
My Satellite Setup
TM 5402HD
Skybox F3
Sky+ UK.
My Location
Scottish Borders
It does look like it's not very stable but had the mount on the roof almost at the edge and not on the pallet during the storms a couple of weeks ago and it, thankfully, did not tip over. The mount is tied up to the pallet plus the weight on top so hopefully it won't move.
We have had members on the forum reporting chimneys ripped down & going therough the roof by dishes fastened to them in the past. Wind loadings on any dish are immense. Those blocks are nowhere near enough to stop the dish flying off that roof if the wind is blowing in the wrong direction for that dish. The pallet wont do anything - it will likely end up in the garden as well..
 
Chr0nik

Chr0nik

Member
Messages
96
My Satellite Setup
TM-9100 Linux receiver / Edision OS mini 4K / TM-2600 M3 motor / 110cm dish (34.5w to 50e) - 100cm dish (51.5e/52e/53e/60e)
My Location
Grays, Essex
That would indicate that your motor zero is not properly aligned with your dish and with due south, I guess.
Edit: Or a non-plumb mast east-west-wards, to begin with.




See dishpointer.com, and position your antenna location exactly at map.


BTW: Why don't you use USALS?
Should work OK, when the motor is setup well. And alignment to south is even easier...

(And, just curious: is the motor to LNB cable long enough, when attached this way?)

Greetz,
A33
That would indicate that your motor zero is not properly aligned with your dish and with due south, I guess.
Edit: Or a non-plumb mast east-west-wards, to begin with.
I think that's the issue but if I was to realign, I would lose some of the other satellites on the east?


See dishpointer.com, and position your antenna location exactly at map.


BTW: Why don't you use USALS?
Should work OK, when the motor is setup well. And alignment to south is even easier...

(And, just curious: is the motor to LNB cable long enough, when attached this way?)

Greetz,
A33
I've used USALS with the old motor and when moving to 30w, it was moving to 34w and some other satellites were moving to the wrong degree so I wanted to see how 1.2 played out.
 
Chr0nik

Chr0nik

Member
Messages
96
My Satellite Setup
TM-9100 Linux receiver / Edision OS mini 4K / TM-2600 M3 motor / 110cm dish (34.5w to 50e) - 100cm dish (51.5e/52e/53e/60e)
My Location
Grays, Essex
For a non penetrating roof mount for a satellite dish using cement blocks, the correct offset weight should be 10 each 8"x8"x16 " cement blocks, or about 280 pounds. (standard building block is about 28 pounds)
We have had members on the forum reporting chimneys ripped down & going therough the roof by dishes fastened to them in the past. Wind loadings on any dish are immense. Those blocks are nowhere near enough to stop the dish flying off that roof if the wind is blowing in the wrong direction for that dish. The pallet wont do anything - it will likely end up in the garden as well..
I plan to put it in the garden but the area is uneven so I will need to come up with something. I wouldn't want it to go all the way down .
 
A

a33

Specialised Contributor
Messages
708
My Satellite Setup
XSAT410
Rebox RE-9000
My Location
NL
I think that's the issue but if I was to realign, I would lose some of the other satellites on the east?
Well, when your zero is to be realigned, chances are that your motor elevation angle and dish declination offset angle are also not OK.
Setting up a motorized system means doing it step by step, and checking each step!
You cannot really counteract not-perfect step results in the next steps....
And USALS indeed needs a properly setup motor system. :)

So, when you would just setup your zero anew, and leave all other angles as they are: yes you would lose some satellites!

BTW Use the so-called modified angles for your motor setup; that makes fine-adjustment a lot easier, or even unnecessary!
Table is found e.g. here: Elevation / declination chart
Or bottom of here: https://web.archive.org/web/20071117180836/http://www.geo-orbit.org/sizepgs/decchartp.html


Greetz,
A33

Edited. Added 2 sentences.
 
Last edited:
M

mariust5

Specialist Contributor
Messages
503
My Satellite Setup
Cristor Atlas 100HD , motorised 1.1 Triax on Stab H-H
My Location
hastings , uk
The house next door looks way in the way of the signal , find a nice spot in the garden and all will be ok .

There's no way you could've got the West sats before from there unless the stand was set backwards in the middle more to clear next door :)
 
aceb

aceb

Specialist Contributor
Messages
1,511
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
If that inserted photo is taken from the dish position I'm suprised you're getting as far as 8W given how close the wall is to the direction of the Sky dishes.
 
Chr0nik

Chr0nik

Member
Messages
96
My Satellite Setup
TM-9100 Linux receiver / Edision OS mini 4K / TM-2600 M3 motor / 110cm dish (34.5w to 50e) - 100cm dish (51.5e/52e/53e/60e)
My Location
Grays, Essex
I think I'll get another mount and use the old dish to get 15w and 30w. The very odd thing is that I was able to get 15w with the old dish and I now I cannot.
 
Channel Hopper

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
30,439
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK
If that inserted photo is taken from the dish position I'm suprised you're getting as far as 8W given how close the wall is to the direction of the Sky dishes.
If you look at the picture, that loop of white cable at the base is the one that is wrapped around the Sky dish, so I would expect some satellites beyond 1W - because of the higher elevation - they could be above the neighbour's property, just.
 
Chr0nik

Chr0nik

Member
Messages
96
My Satellite Setup
TM-9100 Linux receiver / Edision OS mini 4K / TM-2600 M3 motor / 110cm dish (34.5w to 50e) - 100cm dish (51.5e/52e/53e/60e)
My Location
Grays, Essex
Update...

After realising that I've read the instructions wrong, I slightly realigned my the dish/motor and I'm now able to get 60e to 22w. However, I'm still unable to get 30w and 34.5w. At the moment I have the motorised dish connected to a EMP Centauri Diseqc switch as I was trying to hook the old dish with 15w to the receiver. I would think that it would decrease the signal when connected to a switch.

Tomorrow, I'll disconnect it from the switch and plug it back to the box. Hopefully I'll be able to get 30w and 34.5w.
 
Analoguesat

Analoguesat

Administrator
Staff member
Messages
48,371
Location
Scottish Borders
My Satellite Setup
TM 5402HD
Skybox F3
Sky+ UK.
My Location
Scottish Borders
34.5W really isnt very interesting!

To be honest 30W isnt very interesting either really!
 
Chr0nik

Chr0nik

Member
Messages
96
My Satellite Setup
TM-9100 Linux receiver / Edision OS mini 4K / TM-2600 M3 motor / 110cm dish (34.5w to 50e) - 100cm dish (51.5e/52e/53e/60e)
My Location
Grays, Essex
Maybe but the buzz is being able to get the most satellites in the arc.
That's true. In reality, there isn't anything interesting to watch apart from the main European satellites but knowing that you can get most of what's available, it's part of the hobby.
 
jeallen01

jeallen01

Specialist Contributor
Messages
4,854
My Satellite Setup
See Signature
My Location
Somewhere in England (possibly?)!
34.5W really isnt very interesting!

To be honest 30W isnt very interesting either really!
From what I saw, everything on 34W is encrypted, but there are some interesting local channels on 30W - although you need a largish dish to get them (a Zone 2 won't get a sniff).
 
Channel Hopper

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
30,439
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK
That's true. In reality, there isn't anything interesting to watch apart from the main European satellites but knowing that you can get most of what's available, it's part of the hobby.

Sweeping, and not true.

There is plenty out there with a reasonable sized dish and a blind scan receiver, though you do have to check regularly to get the best out of the feeds.

Unfortunately the latest pandemic is hitting the number of roving reporters but there is still a good amount of content.
 
Top