Primestar Fiberglass Dish - Help

[marksteven]

ka dss= 125 watt satellite 12.2 to 12.7 ghz

ku = 25 watt at best 11.7 to 12.2 ghz


you can receive dss on a pie tin if you work at it.....i was reefering to true free to air satellite reception....sorry about any confusion...mark

[el bandido]

Originally Posted by marksteven

ka dss= 125 watt satellite 12.2 to 12.7 ghz

The Ka band uplink uses frequencies between 27.5GHz and 31Ghz and the downlink uses frequencies between 18.3 and 18.8Ghz and between 19.7 and 20.2Ghz.

Originally Posted by marksteven

ku = 25 watt at best 11.7 to 12.2 ghz

The Americas:

Segments in most of the Americas are represented by (ITU Region 2) and they are, the 11.7 to 12.2 GHz (Local Oscillator Frequency (LOF) 10.750 GHz) band is allocated to the FSS (fixed service satellite, uplink 14.0 to 14.5 GHz). There are more than 22 FSS Ku-band satellites orbiting over North America, each carrying 12 to 48 transponders, 20 to 120 watts per transponder, and requiring a 0.8-m to 1.5-m antenna for clear reception.

The 12.2 to 12.7 GHz (LOF 11.250 GHz) segment is allocated to the BSS (broadcasting satellite service). BSS/DBS direct broadcast satellites normally carry 16 to 32 transponders of 27 MHz bandwidth running at 100 to 240 watts of power, allowing the use of receiver antennas as small as 18 inches (450 mm).

Originally Posted by marksteven

you can receive dss on a pie tin if you work at it.....i was reefering to true free to air satellite reception....sorry about any confusion...mark

I agree.
Some people seem to think there are multiple focal points on a dish when there is only one.
I would like to see somebody put four or five low power linear birds on one of these dishes. That would take some good engineering. EB

http://www.tech-faq.com/ka-band.shtml

http://en.wikipedia.org/wiki/Ku_band

[1biggy]

"Some people seem to think there are multiple focal points on a dish when there is only one.
I would like to see somebody put four or five low power linear birds on one of these dishes. That would take some good engineering."

Always a wise ass in every bunch. Never seems to amaze me how fast someone will try and find fault in another persons post. This is sharing not bashing.

The primestar dish is elliptical meaning it can receive multiple sats at once. If you want to use linear, put that one in the center lnb mount. Tell me your little dig again and why?

[el bandido]

Originally Posted by 1biggy

I think you guys are going over the edge here, I had at one time 5 lnb's hangin on the primestar dish. You do not want to place the lnb exactly at the peak focal point , it should be alittle closer because you want to have some side rejection from the outer edges of the dish, otherwise you will get more "noise".
This dish is very forgiving as far as aiming. I had at one time 97-101-110-119 and 129 sats! My primestar doesn't have the skew adjustments either, so the lnbs were mounted all crazy! Aim center sat lnb then make or fab a bendable arm to place the other lnbs up down left and right. Amazingly I pegged the signal quality on all sats except 129. That peaked at around 80%.
A tech from Channelmaster told me to paint the dish with water based paint, one may use latex all day long without signal loss. I used a water based enamel and didn't notice any signal loss.
Good luck!

Originally Posted by 1biggy

"Some people seem to think there are multiple focal points on a dish when there is only one.
I would like to see somebody put four or five low power linear birds on one of these dishes. That would take some good engineering."

Always a wise ass in every bunch. Never seems to amaze me how fast someone will try and find fault in another persons post. This is sharing not bashing.

The primestar dish is elliptical meaning it can receive multiple sats at once. If you want to use linear, put that one in the center lnb mount. Tell me your little dig again and why?

What are you getting all defensive about??? People have been putting multiple lnbs on dishes for years but that does not mean that they are not making a compromise.
The circular or any provider's birds usually have a lot stronger signal than the average linear bird so putting multiple lnbs on a dish to get the linear birds will not work well in most cases.

[sloader]

I am with you 1biggy, there is always a different way of accomplishing a goal, if everyone listened to only one persons opinion, we would still think the earth was flat, and we would all be crapping in a outhouse. Neccesity is the mother of invention. Many a problem has been solved by people who say I can do this, even though someon told them it can't be done.

[te2erd]

Originally Posted by sloader

I recently was given 3 fiberglass dishes, 54
high x 48" wide. The problem is there is no hardware. If anyone has a fiberglass dish that size and can measure the length, roundness, and type of material of the 3 arms that hold the lnb, I would appreciate it. Or if anyone knows where they could be purchased. Thanks for any help.

It is a 1.2 meter primestar dish and I will measure mine in the morning.Daylight is need.I can tell you aluminium tubing and a drill is all you need.Maybe some taps and bolts not much more

[mocksat346]

i use primstar dish for bev put in when they was spotbeaming there signal i instaled about 10 of them used direct tv lnb and signal meter to git lnb in position dont need anymore

[te2erd]

Originally Posted by te2erd

It is a 1.2 meter primestar dish and I will measure mine in the morning.Daylight is need.I can tell you aluminium tubing and a drill is all you need.Maybe some taps and bolts not much more

I measured the arms on my dish and the are 20 inches from dish to base

[sloader]

Originally Posted by te2erd

I measured the arms on my dish and the are 20 inches from dish to base

Thanks, I will try that length and see if I can boost the quality levels.