inclined sats?

[messerschmitt]

Hi has anyone managed a diy approach to moving their motorised dish off the arc to track inclined sats, I'm looking at mine to see if I could put another actuator on it to move it up or down and just wanted to know if anyone has done anything like this?

[satwyn]

no not personally not worth the bother but could easily be done with two actuators you could use a v box for the inclined actuator with 36v for e-w

[chorleycat]

yes i know quite a few people that have modified their setup --
i have done it myself on both a 1.8 and a 1.2 channel master setup --
and driven using the method that - satwyn - has described --
what dish / mount setup have you currently got ?

regards c.c.

[tr8.]

dont think it would be possible on my dish's, as the movement is small compared to the arc movement, and my dish's are very heavy (channel masters) so the adjustment would need to be very fine and a very strong motor.
I had a centre feed dish many years ago, this i understood it was possible on but if i remember correctly you also needed to use a polorizer as well, I have 2 of them from my dish's past history that went onto the c120's but the last reciever i had the would run them was my echostar ad3600ipva.
Then you get to band, which band lnb are you going to use?

As Satwyn said realy its a non runner.

[tr8.]

yes i know quite a few people that have modified their setup --
i have done it myself on both a 1.8 and a 1.2 channel master setup --
and driven using the method that - satwyn - has described --
what dish / mount setup have you currently got ?

regards c.c.

What motors are you using?


I have a 1.8 Channel master and 1.2 Channel Master, they have 2 adjusters for the arc top and back, do you have a motor on each?
the top will only move about and 1" back about 4"
As you adjust the back it would also adjust the e/w as they are not both atached to the 2 pivot points the upper one is seperate
I would guess you use a linner drive motor direct onto the polar mount and it drives up down for the back with a universal joint for the angle changes
Or have you made a new mount?

Would love to see some pics.
:respect-054:

my standard mount is attached

[ian]

tr8

the top bolt that you mention is your declination angle,this is not the one used for inclined sats.
the threaded bolt at the back of the dish is what you would replace with a small 6 inch actuator.
the adjustment that you have is plenty.you say its only 4 inches,but thats 4 inches at ground level.
if you were able to attach a straight edge of some sort to your dish,that went 26000miles into space where the sats are,then you would see that although one end of the straight edge at ground level was only moving 4 inches,the other end in space would be moving hundreds of miles.
hope this helps.Ian.

[chorleycat]

What motors are you using?


I have a 1.8 Channel master and 1.2 Channel Master, they have 2 adjusters for the arc top and back, do you have a motor on each?
the top will only move about and 1" back about 4"
As you adjust the back it would also adjust the e/w as they are not both atached to the 2 pivot points the upper one is seperate
I would guess you use a linner drive motor direct onto the polar mount and it drives up down for the back with a universal joint for the angle changes
Or have you made a new mount?

Would love to see some pics.
:respect-054:

my standard mount is attached


i have some pics - but cant find them just at the moment - if i cant find them later tonight i will take some more tommorow --
as -- ian said its just the elevation that is adjusted -- not the declination -- on the 1.2- i replaced the threaded bolt with a rod down through the hole in the mount - then connected it to a small actuator that is driven by a v box -- the east west is driven by a normal actuator driven by a old technomate reciever with 36 volt built in positioner

the 1.8 being much heavier is done differently with a counterweight - but the principle is the same -- i made and bolted some more parts onto the existing mount --

the pictures will explain much better than my words --

both setups are quite basic but have worked well over a number of years -- i dont use the one on the 1.2 much these days but the elevation adjuster on the 1.8 is used regularly as i have C band l.n.b.s set off centre and need to alter the elevation to bring them in line on various sats

regards c.c.

[chorleycat]

ok -
only found the 1.2 pics -- so far
the insulation tape on pic 2 has now been replaced by some heavy duty cable ties -- l.o.l.
and realy - a shorter more heavy duty actuator would have been more suitable, but its all i had at the time -- its stood ok for about 2 years - but i notice the bearing in it it showing a bit of play now .

cheers c.c.

48231

48232

48233

[tr8.]

thanks
will have a look and see what i can do as i have a spare 1.2m channel master and mount,lnb only thing dont have spare is jackarm as mine have never gone wrong over the last 20 years and the dish was what the 1.8 replaced.
what a good sat to start to look for? and which tp?

[chorleycat]

thanks
will have a look and see what i can do as i have a spare 1.2m channel master and mount,lnb only thing dont have spare is jackarm as mine have never gone wrong over the last 20 years and the dish was what the 1.8 replaced.
what a good sat to start to look for? and which tp?


hi -
astra 1c and astra 1d at 2 east (both inclined ) and used for feeds -
see -- lingsat .com or flysat .com for feed t.p. listings
although many, but not all are in 4.2.2. video format so would need AZ box reciever - to view them or a skystar 2 p.c card
ITN newsnet transmits all the time on asta 1 c . 11423 V 3400 - in 4.2.2. --
a standard reciever will see the signal though - so you can use that to find the sat position
i had a look with the 1.2 tonight and astra 1 c crosses the arc between 5.15 p.m and 7.00 pm -- at the moment -- so no elevation adjustment needed between those times -- the same will be repeated at 5.15 am - 7.00 am
i,v no times or active frequencies for astra 2 d at the moment

regards c.c.

[messerschmitt]

hi all again, the reason being I was watching Leicester City v Bristol City last Friday night, I think someone found the feed on 2e but unfortunatly when the second half started the picture signal started to vanish as the satellite moved off the arc so I was just wandering what some of the more experienced guys do, the seems to be quite a lot of games on 2e, oh and chorleycat thanks for the pictures its given me inspiration knowing someones done it before, cheers

[Burnham]

If your dish is at ground level you can easily adjust your elevation with a spanner. You need to do a bit of calculation to work out how many spanner turns equate to degrees of elevation adjustment. Once you have finished watching the program you are interested in just reverse the adjustment to put the dish back to its original elevation position.

You can watch 4:2:2 feeds on a PC screen with any linux receiver - dreamboxes and the like - by feeding the signal into your PC through your network.