Issue with Invacom / Receiver / Linear transponders

[GMan73]

Hi all,
maybe someone can help me with this problem.

I have CW600SP / Invacom 31 / SG2100 / Fortec 33"

I have two cables going from Invacom L and C output to switch. Linear is connected to LNB1 and Circular is connected to LBN4. From switch output cable is going to motor and from motor to receiver.

I spent some time adjusting motor and now I'm able to receive 6 satellites with strong signal. My problem is that I'm only receiving circular transpoders. I can't find any linear transponder. I tried with default transponders and nothing. I deleted all default transpoders and enter new from Lyngsat but still nothing.

Just for reference this is my setup for AMC 5 which is true south from my location and I should use it to align motor/dish:

Transponder: 11742 v 22220 3/4
LNB Freq: 10750
LNB Type: Normal
22KHz: Off
Diseqc Number: LNB1
Legacy SW: Off
Motorised system: Diseqc 1.2

I'm scanning left and right and quality is 0% on all linear transponders on all satellites. I'm really confused, I'm receiving circular without problem but I can't find any linear.

During setup I connected linear output from Invacom directly to Satellite finder and then to receiver. I was able to receive strong signal on Satellite fined so I assume that Invacom is working fine but still there was no signal on receiver. Am I missing something is receiver setup?

Please help because I have a fealing that I bought faulty receiver...

Thanks!

[wejones]

Originally Posted by GMan73

Hi all,
maybe someone can help me with this problem.

I have CW600SP / Invacom 31 / SG2100 / Fortec 33"

I have two cables going from Invacom L and C output to switch. Linear is connected to LNB1 and Circular is connected to LBN4. From switch output cable is going to motor and from motor to receiver.

I spent some time adjusting motor and now I'm able to receive 6 satellites with strong signal. My problem is that I'm only receiving circular transpoders. I can't find any linear transponder. I tried with default transponders and nothing. I deleted all default transpoders and enter new from Lyngsat but still nothing.

Just for reference this is my setup for AMC 5 which is true south from my location and I should use it to align motor/dish:

Transponder: 11742 v 22220 3/4
LNB Freq: 10750
LNB Type: Normal
22KHz: Off
Diseqc Number: LNB1
Legacy SW: Off
Motorised system: Diseqc 1.2

I'm scanning left and right and quality is 0% on all linear transponders on all satellites. I'm really confused, I'm receiving circular without problem but I can't find any linear.

During setup I connected linear output from Invacom directly to Satellite finder and then to receiver. I was able to receive strong signal on Satellite fined so I assume that Invacom is working fine but still there was no signal on receiver. Am I missing something is receiver setup?

Please help because I have a fealing that I bought faulty receiver...

Thanks!

Two things. First, that transponder seems to be gone. I'm curious where you got the 22220 SR though, because the last time I tuned it in, it was 11110. But I just tried, and it seems to be gone. It's listed as being gone in Lyngsat too I just noticed. Anyway, try the NYN transponder, ie
12182H/23000 That's a pretty strong transponder, and is 24/7.

The other thing, is, if you continue to have problems, try bypassing the switch, because those switches seem to be very prone to not working. Sometimes they will work with one receiver but not another, other times they just don't work period, right out of the box. They don't seem to be a very fullproof technology. When you get one that works, they work for years, but I think I have 2 that work out of 4 or 5 I've bought over the years.

[GMan73]

It looks like I found solution for this issue. First I spent few hours on the roof experimenting with cables, switches, new linear LNB and everything was working same way as before. I changed all cables, even 50 foot cable from dish to receiver and nothing. I tried new linear LNB and there was no signal.

Then I decided to give another try with satellite signal finder. I found closest circular satellite to AMC5 which is linear and it's also true south from my location. When I found good signal on that circular bird I moved the dish just few degrees using receiver and pointed the dish somewhere to AMC5. Then i connected satellite finder just to linear output on Invacom, located that linear satellite and fine tuned the dish elevation and position. Then I connected again everything same way as it was before.

When I went down home i discover that I have 30% signal on AMC5! Wow... Then I went on the roof again and turned the dish slowly using buttons on motor so that dish is in perfect alignment with motor. I was turning the dish just for a small step to left and then I will turn whole assembly (motor+dish) on the pole to the right watching all the time signal meter in order not to lose AMC5.

Finally I had motor and dish straight and pointing directly to AMC5. I finally aligned whole assembly to true south. I also made small dish elevation adjustments in order to hit that linear bird and find good signal. I have to say that this $15 satellite finder is GOLDEN tool. Don't think, just buy this huge time savers!

Then I went home again and I had 60% quality on AMC5. Also I found all other linear and circular birds from 61 to 148. Only problem is that all circular satellites have 90+ quality and strongest signal on linear is 60. I suppose that I should make more adjustments but I will leave that for tomorrow or maybe some other time since I'm more that happy at this moment that my equipment is not faulty.

So, as a conclusion, it looks like that if you have 99% quality on circular satellite that doesn't mean that you pointed your dish good for linear satellite. You have to make more adjustment in dish & motor elevation. You have to experiment and have a LOT of patience.

Thank you all for your suggestions and help in this adventure. I hope that my story will help someone with similar issue.

Regards,
G

[rainman]

Remember circular sats produce more power than linear thats why you are able to receive them with a 18" dish. also if you are getting 60 quality on a 33" dish thats not that bad.

[GMan73]

That means that I don't have to go on the roof 4th day in a row! Yeah!!! Thanks...