[gary2381]

I am getting 0 signal strength on the even transponders on satellite 99 (c). All other items seem to be okay.

Any advice ? Am I looking at a new LNB ?

 

[Mertzen]

Do you have any problems with even on 101? And what is the signal on 103c?

 

[gary2381]

no problems with 101 at all

103 (c) signal is in the low to mid 80's
82 86 82 83 80 84 80 82 etc

 

[tkrandall]

Bad LNB maybe? Did you check both tuners?

 

[techrep]

Spock's Law.

http://www.dbstalk.com/showpost.php?p=1682040&postcount=1

 

[K4SMX]

Bad LNB maybe? Did you check both tuners?

Right, if you in fact have two tuners in your receiver. This could be nothing more than a BBC issue. And do you use an external multi-switch? Any other HD receivers to swap into this location?

 

[gary2381]

Bad LNB maybe? Did you check both tuners?

yes, both tuners report the same issue.

 

[gary2381]

Right, if you in fact have two tuners in your receiver. This could be nothing more than a BBC issue. And do you use an external multi-switch? Any other HD receivers to swap into this location?

I do not have a multi switch. I have the AT-9 (sidecar) dish. Two lines go directly from the dish to the receiver. Both lines have the BBC. I get good signals on the odd transponders but 0 on all evens.

 

[K4SMX]

Get a Slimline.

 

[tkrandall]

I think what K4SMX is saying is the problem may be in the AT9's built in multiswitch. 99 evens are selected along with 101 evens using the 18v signal from the receiver. But the 99s and 99c transponders are stacked differently (higher frequency block for 99s, lower block for 99c) in the stack plan coming from the dish. Since you get the 99c odds that use the same frequency range as 99c evens (not at the same time), one would not think it to to be the receiver. That, and also since it affects both tuners one would not think it to be the BBCs.

A possible explantion is the dish built in mutliswitch is not properly sending the 99c evens in the stack plan in response to the 18v request.

Or possibly something is bad with the 99 LNB's even. But you did not mention if the 99s evens are good or not. If any of them are good, I would suspect the dish's built in multiswitch. If they are all bad, then maybe it is the LNB. Hard to tell, though 'cause I don't know if you have any 99 even spot beams pointed your way that should show up.

Edit - I clarified the 99s and 99c stacking above. Can anyone confirm if all 99s beams are Ka high? Are are some now possibly spots from D11? Would those be Ka low even though they show as 99s?

 

[K4SMX]

I think what K4SMX is saying is......

Thanks, I was pressed for time. Major baby back rib project underway....apple wood and all that.....

 

[techrep]

I think what K4SMX is saying is the problem may be in the AT9's built in multiswitch. 99 evens are selected along with 101 evens using the 18v signal from the receiver. But the 99s are stacked differently (higher frequency) in the stack plan coming from the dish. Since you get the 99c odds that use the same frequency range as 99c evens (not at the same time), one would not think it to to be the receiver. That, and also since it affects both tuners one would not think it to be the BBCs.

A possible explantion is the dish built in mutliswitch is not properly sending the 99c evens in the stack plan in response to the 18v request.

Or possibly something is bad with the 99 LNB's even. But you did not mention if the 99s evens are good or not. If any of them are good, I would suspect the dish's built in multiswitch. If they are all bad, then maybe it is the LNB. Hard to tell, though 'cause I don't know if you have any 99 even spot beams pointed your way that should show up.

Very nice explanation.

 

[cweave02]

Thanks, I was pressed for time. Major baby back rib project underway....apple wood and all that.....

Just don't set the woods on fire! :grin:

 

[gary2381]

I think what K4SMX is saying is the problem may be in the AT9's built in multiswitch. 99 evens are selected along with 101 evens using the 18v signal from the receiver. But the 99s are stacked differently (higher frequency) in the stack plan coming from the dish. Since you get the 99c odds that use the same frequency range as 99c evens (not at the same time), one would not think it to to be the receiver. That, and also since it affects both tuners one would not think it to be the BBCs.

A possible explantion is the dish built in mutliswitch is not properly sending the 99c evens in the stack plan in response to the 18v request.

Or possibly something is bad with the 99 LNB's even. But you did not mention if the 99s evens are good or not. If any of them are good, I would suspect the dish's built in multiswitch. If they are all bad, then maybe it is the LNB. Hard to tell, though 'cause I don't know if you have any 99 even spot beams pointed your way that should show up.

I am in the DFW area. On 99 (s) I show

0 0 48 0 0 0 N/A N/A
N/A N/A N/A N/A N/A N/A 0 0
81 0 0 0 77 0 0 0
N/A N/A N/A N/A N/A N/A N/A N/A

I saw one recommendation to replace the dish. Do you guys think thats the best answer ?

Also is the AT-9 and AU-9 dish the same ? Could I just replace the switch and LNB ?

Thanks for all the help.

 

[K4SMX]

You can't tell anything about much of anything by looking at the signals on 99(s), since they are local network station spot beams, none of which may be pointed at your area. What's important are the national Ka satellites, 99(c) and 103(c). The LNB's for the older AT-9 ("sidecar") are no longer generally available, so if you actually did have an LNB problem and you have an AT-9, your AT-9 would have to be replaced with an AU9-S (Slimline).

The AT-9

The AU9-S

 

[gary2381]

You can't tell anything about much of anything by looking at the signals on 99(s), since they are local network station spot beams, none of which may be pointed at your area. What's important are the national Ka satellites, 99(c) and 103(c). The LNB's for the older AT-9 ("sidecar") are no longer generally available, so if you actually did have an LNB problem and you have an AT-9, your AT-9 would have to be replaced with an AU9-S (Slimline).

The AT-9

The AU9-S

If it was a problem with the multi switch then would it not be logical to think that none of the even transponders on any of the sats would work ?

 

[K4SMX]

If it was a problem with the multi switch then would it not be logical to think that none of the even transponders on any of the sats would work ?

No, not really. LNB/multi-switch combo's can have a number of different failure modes, although it is more common to see one satellite position's LNB to be completely out, rather than just one polarization. But the internal multi-switch can have its own problems, separate from the LNB's. It is true that certain connector problems can effect more than one satellite simultaneously, since they share voltages + tones/no tones used in the signaling for the stack plan.

 

[gary2381]

No, not really. LNB/multi-switch combo's can have a number of different failure modes, although it is more common to see one satellite position's LNB to be completely out, rather than just one polarization. But the internal multi-switch can have its own problems, separate from the LNB's. It is true that certain connector problems can effect more than one satellite simultaneously, since they share voltages + tones/no tones used in the signaling for the stack plan.

well I just went and picked up the slimline (Au-9) dish with a new LNB so I am hoping that this works since this will be my third dish in 12 months.

Thanks again for all of the help.

 

[tpayne105]

well I just went and picked up the slimline (Au-9) dish with a new LNB so I am hoping that this works since this will be my third dish in 12 months.

Thanks again for all of the help.

Hey Gary

I too am having issues with the signal.....is your's any better and if so, what did you do?

Mine has been acting as if it is raining all day....

Thanks

Todd