African Satellite World and Sat Gear

African Satellite World and Sat Gear

GIDEN said:
Brilliant innovation
I think Vicwa or a member here last year posted a better way of going about it by making the arms adjustable. You cut in the middle or near bottom edge. Add a thiinner rod which will have a bolt lock ie a contraption like the prime focus elevation adjusting arm.
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Yes, it was me and I can say I'm smart on it.
IMG-20180913-WA0001.jpg
 
freq said:
No I didn't touch the lnbs perhaps adjusting them would give better results
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Freq a question how does let's say apstar 7 lnb get the channel of thaicom in a motorised set up do you have to set it on decorder or how have you set it
 
GITHS said:
Freq a question how does let's say apstar 7 lnb get the channel of thaicom in a motorised set up do you have to set it on decorder or how have you set it
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In your dish settings on the decoder, set a single lnb accross the sats as picture shows. In this case "lnb 6" then move the dish from IS 20, apstar, thaicom etc.
IMG_20180914_090517.jpg


Moving the dish can be done manually every time you need to switch sat or automatically by dish positioner . once the position is saved, the positioner will automatically move the dish there when yo switch sats.

Note the single lnb accross multiple sats will only work if no dielectric plate is required accross all those sats and lnb skew is same.

Or dielectric plate is required accross all those sats and lnb skew the same . Otherwise you may need to install a parasite lnb say' lnb 4" with the dielectric plate inserted and skew set differently that's how I nab 57e C band on the Motorized set up.
 
freq said:
In your dish settings on the decoder, set a single lnb accross the sats as picture shows. In this case "lnb 6" then move the dish from IS 20, apstar, thaicom etc.
View attachment 865831

Moving the dish can be done manually every time you need to switch sat or automatically by dish positioner . once the position is saved, the positioner will automatically move the dish there when yo switch sats.

Note the single lnb accross multiple sats will only work if no dielectric plate is required accross all those sats and lnb skew is same.

Or dielectric plate is required accross all those sats and lnb skew the same . Otherwise you may need to install a parasite lnb say' lnb 4" with the dielectric plate inserted and skew set differently that's how I nab 57e C band on the Motorized set up.
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The setting is exactly what I thought. Thanks for info I think motorising a dish is the way to maximise the use
 
GIDEN said:
Some decoders easily indicate 100% eg Qsat models. Esp on strong frequencies. On either Intensity/ strength or Quality.
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OK..but theoretically you can't receive 100% of what is transmitted ?
 
Can one modify lnb holder like this and be used in a motorised setup and have 3 lnb arm support
tapatalk_1535821954583.jpeg
 
GITHS said:
Can one modify lnb holder like this and be used in a motorised setup and have 3 lnb arm supportView attachment 866383
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Yea you can use that one. Problem with it is; all lnbs Will be parasites and there will be no primary (central) lnb such that the sweetest spot of your dish will be wasted..

Remember some Tps are so stubborn and won't take a parasite position. They want the prime spot inorder to stabilize..

You'll need a very big dish to cancel out the parasite effects
 
mankuri said:
OK..but theoretically you can't receive 100% of what is transmitted ?
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Interesting question. What does the percentage mean? Percentage of what? Obviously its not percentage of what was transmitted because what was transmitted covers a large foot print and one decoder can't get it all. I think signal strength means percentage of the maximum signal amplitude the receiver expects from the lnb. The higher the radio waves the stronger the signal. Quality refers to the digital data the receiver is able to understands (decode) as a percentage of the data it has received.

Disclaimer:I am a social scientist not an engineer.
 
Lunsat2 said:
Interesting question. What does the percentage mean? Percentage of what? Obviously its not percentage of what was transmitted because what was transmitted covers a large foot print and one decoder can't get it all. I think signal strength means percentage of the maximum signal amplitude the receiver expects from the lnb. The higher the radio waves the stronger the signal. Quality refers to the digital data the receiver is able to understands (decode) as a percentage of the data it has received.

Disclaimer:I am a social scientist not an engineer.
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I think received signal quantity is measured in decibels (db). db being a geeky measurement unit, manufacturers traditionally resort to proportions that laymen users like you and me can understand. The percentage.

Now a decoder manufacturer programs a certain yard stick against which received signal quantity is measured. Say 20dbs = 99% 12dbs = 60% and so on.

when you receive 12dbs, your reciever will indicate 60% which is 12 against total 20 it is expecting not necessarily the practical maximum.

More like your phone battery; when the battery potential drops to about 2.5volts against the full 5v the phone can be programmed to show it has 50% battery remaining. A cheap Chinese phone could be programmed to show it's 80% full when you only have 2 volts out of 5volts. If you want 100% for 1 out of 5volts, Chinese will give you just that.

As for 100% never shown. I've realized strong is programmed to show only 2 digits for signal/quality indicator (they don't expect you to get a 3 digit signal strength/quality with their low sensitivity tuner anyway). 100 being 3 digits is a no go zone.
 
freq said:
I think received signal quantity is measured in decibels (db). db being a geeky measurement unit, manufacturers traditionally resort to proportions that laymen users like you and me can understand. The percentage.

Now a decoder manufacturer programs a certain yard stick against which received signal quantity is measured. Say 20dbs = 99% 12dbs = 60% and so on.

when you receive 12dbs, your reciever will indicate 60% which is 12 against total 20 it is expecting not necessarily the practical maximum.

More like your phone battery; when the battery potential drops to about 2.5volts against the full 5v the phone can be programmed to show it has 50% battery remaining. A cheap Chinese phone could be programmed to show it's 80% full when you only have 2 volts out of 5volts. If you want 100% for 1 out of 5volts, Chinese will give you just that.

As for 100% never shown. I've realized strong is programmed to show only 2 digits for signal/quality indicator (they don't expect you to get a 3 digit signal strength/quality with their low sensitivity tuner anyway). 100 being 3 digits is a no go zone.
Click to expand...
Quick Vocabulary Reference:
AMP Hour is a unit of measure for a battery's electrical storage capacity. The standard rating is an amp rating taken for 20 Hours.
Voltage represents the pressure of electricity. Some applications require more "pressure," meaning higher voltage.
 
Vicwa said:
Quick Vocabulary Reference:
AMP Hour is a unit of measure for a battery's electrical storage capacity. The standard rating is an amp rating taken for 20 Hours.
Voltage represents the pressure of electricity. Some applications require more "pressure," meaning higher voltage.
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Well , there is voltage, current, ampere hours, volt Amperes etc

Ampere hours abbreviated Ah is a rating or classification of a battery based on the the total number of hours a battery will last when supplying certain amperes of current. Not the remaining power in a battery at any given time.

A battery can be dead but is still rightfully called a 100ah battery. Because when you recharge it, it'll still give you 100a for 1 hr etc.


Its literally Amperes A X hours H. A 100Ah rated battery will supply 1 ampere for 100hours or 100 amps for 1hour

The residual charge remaining aka potential at any given time is measured in volts. Like when you use a car battery, the voltage drops gradually until it'll be able to supply 1 or zero volts and it won't be able to start a car.

If you ever gone to charge a car battery youll see thw guy use a voltameter to measure if the battery is full or not. If the meter doesn't hit 12v .. bado haijaiva..

Same voltameter is built in your smartphone and is giving you voltage remaining reading in percentages.
 
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