Titanium ASC1 DiSEqC Positioner

Channel Hopper

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
30,350
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK
Your location is going to require a better counterbalancing measures or actuators than those at the UK latitudes.
 
E

el bandido

Member
Messages
88
My Satellite Setup
1.2 meter KU band
3.6 meter C band
Enigma2 Receivers
My Location
Atlanta, Ga. USA
What is different about North American latitudes that would require better equipment?
 
subman

subman

Member
Messages
280
My Satellite Setup
echostar 3600
My Location
essex
Where abouts in Brazil are you el bandido As I have worked all down the coast from Fotaleza , Aracaju , Salvador and Rio most of the C band systems I have seen down there have been Wingard + Paraclipse but there a mesh dish with a butterhook feed . All have got good take off from horizon to horizon most of the time there just fixed for the rigs or platforms entertainment systems sounds like the Prodelin is more heavy duty as these petals get blown out due to being so exposed .

Oh yes CH which company do you know sells new WR75 O rings and replacement LNB bolts As soon I will be stripping the corotor off and there is so much corrosion .
 
E

el bandido

Member
Messages
88
My Satellite Setup
1.2 meter KU band
3.6 meter C band
Enigma2 Receivers
My Location
Atlanta, Ga. USA
I am located near Atlanta, Ga. U.S.A.
 
Terryl

Terryl

Specialist Contributor
Messages
2,704
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.
What is "very heavy"? I weighed the dish petals on the Prodelin.

I think most actuator or dish moving problems are in the dish system and not in the positioner or power supply. I spent a lot of time and money getting my Prodelin to move the way I want it to move. The old actuator worked, but the screw was rusted, which would cause the dish to bounce or jerk at some points in the arc. Then you need decent cabling to feed the power to the actuator, and you need shielded sensor wiring. Using large wire like 10 guage to feed the actuator is not practical because the lugs on the positioner will not accept a wire that size, so I use the largest wire that will fit in the positioner properly.

For the satellite dishes, there are two grades of actuator from the Venture company. One grade requires 3.5 amps at 36 volts dc (max), and the larger actuators require 5 amps at 36 volts dc (max). The Venture engineer will tell you these actuators will run at a lesser voltage, but will have reduced performance. You need a big burst of energy to move a heavy dish (100-200Kg dish petal weight) from a low spot in the arc at start-up. Most of our dishes do not weigh this much, so we can use any type of positioner. Commercial dishes such as the Prodelin will be made of a heavier material.

I uploaded some more pictures which includes the Pauxis lnb that is on my C band Prodelin now. I spent a lot of time a few years ago on positioner power supplies to move this c band dish, and modified both Gbox and Vbox with the same power supply design. The ASC1 is best suited in my opinon for moving a large dish, and has the best build of any consumer positioner. The ASC1 also has the most features of any consumer positioner.


GBox_Volt_Amp_test.zip
2020-05-01 12:10​
373M​
You make up what is called a pigtail, large sized wire down to what ever fits.
 
Channel Hopper

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
30,350
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK
What is different about North American latitudes that would require better equipment?

A latitude like yours is different to most if not all areas of Europe. Consequently the arc of a tracking prime focus dish will be higher on the polarmount than one in the UK , Spain etc.
 
E

el bandido

Member
Messages
88
My Satellite Setup
1.2 meter KU band
3.6 meter C band
Enigma2 Receivers
My Location
Atlanta, Ga. USA
My dish elevation for the center or due south satellite is almost 51 degrees. The higher the dish elevation the less work or load on the actuator. Counterbalancing a satellite dish is not something you see in Atlanta.
 
dreambox1959

dreambox1959

Member
Messages
70
Location
FRANCE
My Satellite Setup
humax2000 / technomate 7100
My Location
france
My dish elevation for the center or due south satellite is almost 51 degrees. The higher the dish elevation the less work or load on the actuator. Counterbalancing a satellite dish is not something you see in Atlanta.
Counterbalancing a satellite dish is not something you see very often in europe too!!!
but it s a mechanical efficient system !!
on this forum we are some members who have build our own devices (rimantss etc..) and we attempt to make perfect mount .
 
Channel Hopper

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
30,350
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK
My dish elevation for the center or due south satellite is almost 51 degrees. The higher the dish elevation the less work or load on the actuator. Counterbalancing a satellite dish is not something you see in Atlanta.
Which is why Indid not mention the counterweights. At one extreme of the arc however, when the actuator is fully extended, the weight of the reflector will be harder work to "lift' than for a similar installation in Europe.
 
John

John

Enthusiast.
Messages
2,505
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.
Which is why Indid not mention the counterweights. At one extreme of the arc however, when the actuator is fully extended, the weight of the reflector will be harder work to "lift' than for a similar installation in Europe.

... so true & speaking from experience. - It also draws to the attention needed to get correct anchorage position distance away from the mount pivot point to the AZ jack olive, also taking into account of dish flop at the extreme ends of the arc/dish travel.
 
subman

subman

Member
Messages
280
My Satellite Setup
echostar 3600
My Location
essex
Understood el bandido your not in Brazil but in Atlanta, Ga. U.S.A [SIZE=4].[B][/B][/SIZE]
 
anto@

anto@

Regular Member
Messages
100
My Satellite Setup
dish 150 4 feed ku c lin c circ ka tbs 6925 tbs 5280
My Location
italy
I have installed counterweights on my system, in this way the motor works much less when it recovers the position from 87 east or 63 west towards the zero point
 

Attachments

anto@

anto@

Regular Member
Messages
100
My Satellite Setup
dish 150 4 feed ku c lin c circ ka tbs 6925 tbs 5280
My Location
italy
mathematical formula to find the value of the counterweight
m1 * d1 + m2 * d2 - m3 * d3 = 0 (the negative sign means that m3 is on the other side of the rotation point, i.e. it has a negative direction)
obtaining we obtain that m3 = (m1 * d1 + m2 * d2) / d3
now substituting the numbers we get
15 * 0.2 + 5 * 1 - m3 * 0.8 = 0 and therefore: m3 = (15 * 0.2 + 5 * 1) / 0.8 = 10
 
anto@

anto@

Regular Member
Messages
100
My Satellite Setup
dish 150 4 feed ku c lin c circ ka tbs 6925 tbs 5280
My Location
italy
15 kg disc weight 0.2 meters distance between disc and rotation axis 5kg engine weight + lnb 1 meter distance from motor to disk 0.8 distance from counterweight to rotation axis the values are not exact they are random counterweight value with the data described, 10 kg

closed OT
sorry
 
Channel Hopper

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
30,350
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK
15 kg disc weight 0.2 meters distance between disc and rotation axis 5kg engine weight + lnb 1 meter distance from motor to disk 0.8 distance from counterweight to rotation axis the values are not exact they are random counterweight value with the data described, 10 kg

closed OT
sorry

It's definitely not off-topic, thank you for the explanations and formulae.
 
anto@

anto@

Regular Member
Messages
100
My Satellite Setup
dish 150 4 feed ku c lin c circ ka tbs 6925 tbs 5280
My Location
italy
tonight I tried with an amperometric clamp that also works in the DC field and the value I read was this
starting from the zero point going to the extreme both east and west I read an absorption of about 0.54 A, since the effort is minimal and the same weight of the disk helps the descent
while in the recovery phase from the extreme to the zero point it gave me around 1.2 to stabilize at 0.88 A, during the recovery of the position towards the zero point the current decreased until it was similar to the value I read downhill disk
all thanks to the counterweight that I installed some time ago, but if I remember correctly using the superjak positioner I had a few milliamps of consumption in +, now I am using the Gbox and perhaps it is delivering a few volts in + and consequently the current decreases
or because the pliers in use and brand new of the Ht which costs a bang, while the one used had several years and multiple tumblers on its shoulders, this has been used once or twice
and maybe at the weekend I see to double the voltage and current output from the positioner
 
Top