C
cctyler
Guest
Exact same results I had. All signs point to a faulty LNB. I picked up a brand new one off of ebay for $10, should be here tomorrow. If it isn't...back up to the roof, I need my 82 for the grey cup!
N
Nimiq 1
Guest
The LNBF's are basically 2 separate LNBF's in one unit, so yes they do fail just on one side.
The connections inside the "F" connectors on the refurbished receivers are sometimes weaker than the new ones and can give connection problems.
ODD Transponders are activated on a Legacy LNBF by the receiver outputting 13 volts, the EVENS buy the receiver outputting 18 volts. So if there is a problem with resistance, the first to go will be the EVENS......
Changing connectors and ensuring that there is no corrosion on "F" connectors helps dramatically sometimes. Cheap "F" connectors can be a problem too, in Wall plates for example.
Also, you should NEVER use the small Coaxial Cable that came with the receiver to run from a wall plate to the receiver, this is RG59 and is intended for use between the receiver and the TV only.
The connections inside the "F" connectors on the refurbished receivers are sometimes weaker than the new ones and can give connection problems.
ODD Transponders are activated on a Legacy LNBF by the receiver outputting 13 volts, the EVENS buy the receiver outputting 18 volts. So if there is a problem with resistance, the first to go will be the EVENS......
Changing connectors and ensuring that there is no corrosion on "F" connectors helps dramatically sometimes. Cheap "F" connectors can be a problem too, in Wall plates for example.
Also, you should NEVER use the small Coaxial Cable that came with the receiver to run from a wall plate to the receiver, this is RG59 and is intended for use between the receiver and the TV only.
C
cctyler
Guest
I'm not sure if my results are useful to this thread.
You're wondering why the levels are different from receiver to receiver, but SJ44 brought up a good point, why is it nearly 50%less from 11 to 28? Which is why I asked, why are my even transponders all low?
I think you should check the levels of all other even transponders and compare them, because I believe I have a defective LNB on the even's only.
Here is what I found. Notice on 91 how the even's are all low with LNB2, but after I swapped the LNB's, ALL the levels increase and my 82's all decrease.
(I picked random Transponders on each dish)
On 82,
-----------------LNB1(%) LNB2(%)
Transponder 10 - 76 ------- 49
Transponder 14 - 74 ------- 46
Transponder 21 - 73 ------- 63
Transponder 25 - 92 ------- 84
On 91,
----------------LNB2 (%) LNB1 (%)
Transponder 06 - 43 ------ 64
Transponder 07 - 78 ------ 86
Transponder 08 - 51 ------ 76
Transponder 10 - 54 ------- 80
Transponder 11 - 78 ------ 86
Transponder 12 - 55 ------ 82
I think its safe to say my LNB 2 is defective. It's not completely dead though and the odd transponders do come in stronger than the evens, although not as strong as my LNB1. Anyone know if this is common? Are LNB's the type of equipment that just fail or slowly dither away? I can say one thing, when I removed them, LNB 2 felt like something was shaking inside of it, where as LNB 1 felt as one piece. It's not much of a 'test', but it certainly adds speculation that its failing or worse off than the other.
For $20 on ebay, I guess its worth buying a new one.
SensFan, check the rest of your even transponders, it just may happen that you have the same problem as me. If it is just transponder 28, so be it. Sorry for the hijack.
You're wondering why the levels are different from receiver to receiver, but SJ44 brought up a good point, why is it nearly 50%less from 11 to 28? Which is why I asked, why are my even transponders all low?
I think you should check the levels of all other even transponders and compare them, because I believe I have a defective LNB on the even's only.
Here is what I found. Notice on 91 how the even's are all low with LNB2, but after I swapped the LNB's, ALL the levels increase and my 82's all decrease.
(I picked random Transponders on each dish)
On 82,
-----------------LNB1(%) LNB2(%)
Transponder 10 - 76 ------- 49
Transponder 14 - 74 ------- 46
Transponder 21 - 73 ------- 63
Transponder 25 - 92 ------- 84
On 91,
----------------LNB2 (%) LNB1 (%)
Transponder 06 - 43 ------ 64
Transponder 07 - 78 ------ 86
Transponder 08 - 51 ------ 76
Transponder 10 - 54 ------- 80
Transponder 11 - 78 ------ 86
Transponder 12 - 55 ------ 82
I think its safe to say my LNB 2 is defective. It's not completely dead though and the odd transponders do come in stronger than the evens, although not as strong as my LNB1. Anyone know if this is common? Are LNB's the type of equipment that just fail or slowly dither away? I can say one thing, when I removed them, LNB 2 felt like something was shaking inside of it, where as LNB 1 felt as one piece. It's not much of a 'test', but it certainly adds speculation that its failing or worse off than the other.
For $20 on ebay, I guess its worth buying a new one.
SensFan, check the rest of your even transponders, it just may happen that you have the same problem as me. If it is just transponder 28, so be it. Sorry for the hijack.
T
TheSensFan
Guest
Right.
Now to find an LNB.
Now to find an LNB.
N
NorthTech
Guest
Did you guys check ur cables and ends and switches like was suggested in previous threads? Cause as far as I can tell, you haven't eliminated those possibilities yet and have just assumed it's an lnb issue?
NT
NT
S
SJ44
Guest
That the dish is not focussed in the center of the signal.
I had a similar problem myself; with tranponders in the low 60's and top one at 100. With just a small rain, i was loosing the week ones.
After a carefull aligment, now the transponders are all between 80 and 100.
Here is the latest reading graph:
[img]http://xs221.xs.to/xs221/07472/Nimiq91.jpg[/img]
[img]http://xs221.xs.to/xs221/07472/Nimiq82.jpg[/img]
I had a similar problem myself; with tranponders in the low 60's and top one at 100. With just a small rain, i was loosing the week ones.
After a carefull aligment, now the transponders are all between 80 and 100.
Here is the latest reading graph:
[img]http://xs221.xs.to/xs221/07472/Nimiq91.jpg[/img]
[img]http://xs221.xs.to/xs221/07472/Nimiq82.jpg[/img]
N
Nimiq 1
Guest
You can lead a Horse to Water but you cannot made it drink......
T
TheSensFan
Guest
Tonight I will swap the LNBs from side to side. I do not have the manual handy, but what side should each of the LNBs be on?
I guess it wall depends on if your looking straight at the dish or not?
I guess it wall depends on if your looking straight at the dish or not?
T
TheSensFan
Guest
I'll check all the transponders tonight and reply back!
C
cctyler
Guest
Yes and Yes.
I sliced off a few inches and re-terminated all wires.
I have a switch for my 6100 and it works fine.
I don't see how the lnb isn't at fault by my results? It seems pretty logical, does it not?
I sliced off a few inches and re-terminated all wires.
I have a switch for my 6100 and it works fine.
I don't see how the lnb isn't at fault by my results? It seems pretty logical, does it not?
T
TheSensFan
Guest
There are three cables from the dish and 2 of them are sat 91. I highly doubt both cables just went "bad".
While the third was still perfect...
While the third was still perfect...
N
Nimiq 1
Guest
But a bad SW21 or SW34 would not be good for reception.
T
TheSensFan
Guest
Point is..
Only one goes through the switch the other doesn't and both receivers report the same signal strength on the same transponders.
Only one goes through the switch the other doesn't and both receivers report the same signal strength on the same transponders.
N
Nimiq 1
Guest
Is this how it is hooked up right now.?
C
cctyler
Guest
I think SensFan and I have the same connections.
Two receivers in the house, one being a 6100. The standard definition box receives a direct run from lnb 91. The 6100 has a sw21 connected to it.
Two receivers in the house, one being a 6100. The standard definition box receives a direct run from lnb 91. The 6100 has a sw21 connected to it.
N
Nimiq 1
Guest
If that's the case and BOTH receivers show the same problems it is very rare that the LNBF is defective on BOTH sides at the same time.