• This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn more.

Just Sharing This Interesting PM for 1.2m dishes

Captain Jack

Модератор
Staff member
Messages
9,899
Likes
6,650
My Satellite Setup
See signature
My Location
North Somerset
#1
Saw this on a Russian forum. This guy created his own PM which is powered by a bog standard DiSEqC motor. Useful for when you need that little bit more strength.

Code:
http://satdx.2ua.in.ua/viewtopic.php?p=3147
 

John

Enthusiast.
Messages
1,666
Likes
2,785
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.
#2
Saw this on a Russian forum. This guy created his own PM which is powered by a bog standard DiSEqC motor. Useful for when you need that little bit more strength.

Code:
http://satdx.2ua.in.ua/viewtopic.php?p=3147


Interesting, any chance of going on the forum for a bit more info as to what's going on under the two Cband pop bottles CJ
 

Captain Jack

Модератор
Staff member
Messages
9,899
Likes
6,650
My Satellite Setup
See signature
My Location
North Somerset
#3
Depends... @RimaNTSS will be the best to speak about it since I think he bought some. It's basically a home-brew depolariser inside, normally a foam pipe insulator with rivets in it.

Honestly can't remember what they are called but there's a guy in Russia modifying all sorts of LNBs to account for different opening angles of various dishes etc.
 

RimaNTSS

Super Moderator
Staff member
Messages
4,226
Likes
4,420
My Satellite Setup
Some SAT-related hardware.
My Location
N-E from Riga
#4
This video Alex posted is about PM and not LNB. I've seen this forum and thought about building similar PM, maybe even for Channel Master 1,2m. This PM allows to ease working of the Diseqc motor as on this video.
But, speaking about LNBs, you can find lots of information on THIS forum, but use Chrome web-browser for translation.
BTW, LNBs from video are not made by company in Moscow.
 

RimaNTSS

Super Moderator
Staff member
Messages
4,226
Likes
4,420
My Satellite Setup
Some SAT-related hardware.
My Location
N-E from Riga
#5
Last few days I was thinking about such a PM. I am not sure whether I should start independent thread for this meaning the start of new project. Made a drawing of the mount. Shaft bending angle is 40* , but, perhaps it should be 35, or even 30 degrees.
 

Attachments

Channel Hopper

Suffering fools just so you don't have to
Staff member
Messages
23,935
Likes
4,982
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South East
#6
Interesting, any chance of going on the forum for a bit more info as to what's going on under the two Cband pop bottles CJ

I meant to reply to this a couple of days ago.

The dielectric properties and shape of the bottle surface allow a focusing of signals in much the same way as a scalar ring. Marconi tried it years ago at Ku band and Inverto use it on their 'under three degree' spacing kits instead of the usual LNBF feedhorn design.



Inverto - IDLB-SET03-MULTI-STP -
 

John

Enthusiast.
Messages
1,666
Likes
2,785
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.
#7
I meant to reply to this a couple of days ago.

The dielectric properties and shape of the bottle surface allow a focusing of signals in much the same way as a scalar ring. Marconi tried it years ago at Ku band and Inverto use it on their 'under three degree' spacing kits instead of the usual LNBF feedhorn design.



Inverto - IDLB-SET03-MULTI-STP -


Ahh right thanks CH, i saw the resemblance in shape when i first saw the post pic but thought no more about it