Zinwell Cband LNBF 70% signal 0%quality??
how to tell if your lnbf is stuffed
tried 2 different decoders,set at 5150 get 60-70%signal but 0% quality
tried different transpoders still zip!!
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70% signal suggests the lnb is probably ok but the transponder details you are using are wrong or the dish is not correctly pointed towards the satellite you are trying to receive. Check your transponder details. What are you trying to get? what satellite? what channel? what size dish?
thanks for the reply
I was trying to get pas10 had the same problem so spun it around to pas8 still same. tried a few transponders still same
maybe need toplay some more, first time I've used a satmeter sf95 - usually just have bow where I can see it.
might have to go back to the tried & proven method!!
I've only just started playing around with c band and from what I've experinced is that it appears you're just not pointed at the sat.
Leroy
the c band LNb does ploarization come into play??
shit Ku is easier than this setup 2 dishes on c1 & pas8.
Buggered if I can get anything on c band on pas 8. Looking for a picture to see how the lnb should be in scalar ring, I have mine with the cable connection at the bottom.
What equipment and information are you using?
Originally Posted by tvroman
G'Day,
Perhaps if you answered some of these questions, you may get the right help.
The other one that comes to mind;
Are you using a prime focus or offset dish, with the correct elevation set?
One looks different to the other for elevation.
Unless you can give some information, we are all just wasting our time.
Kindest Regards, " The Druid ".
2.4mts prime focus mesh with C band dual polarity zinwell ZCF-D21a LNBF - looks than same as scitec's odrok stock #210007
pas 8 as per scitec magnetic 68deg elev 25deg - tried elevation both sides of 25deg & left to right
pas 10 295deg elev 27deg as per igp.net - tried both sides as well
got to be something simple that I'm not getting!!
Last edited by omega99; 21-12-08 at 07:30 PM. Reason: more infor
Lets start with pas 8, what transponder details are you using? Are you using a inline signal strength meter to align the dish or just the one in your receiver?
what is your rough location ie what city? pas 10 is a big ask in the eastern states. I am watching it but i needed a 3.7 mtr mesh to get it.
See how easy it is when you have the facts.
Now we're getting somewhere, elevation for the prime should be around 45 Degrees, not 25 as for the offset.
Kindest Regards, " The Druid ".
Yep 45deg roughly like mentioned above. I've only played with the skew on my southern cross LNB so I'm not sure how others compare wrt to mine. (not like Ku where you can say 5 O'clock etc) Also you can adjust the focal point with the lnb. I just used a cheapy sat meter and once I was on the sat I had to play with the LNB. As I moved the dish I could see I was hitting the sats on the clarke belt so I knew the sat meter was working, I was just not getting pics. Once I played with the skew bingo. I was like 90deg out.
Pick a nice strong TP like 3940 H 27690-7/8 and you should see BBC world.
Keep plugging....
Leroy
I'm going to pas8 just to get the feel for c band - I really want pas 10
using both inline sf95 (first time)& signal meter on decoder, I'm in Perth 33deg S & 115deg E. I've hear d of other guys getting it on a 2.4mtr so I thought I'd give it a go
I think your on the money there B4L - as I thought the dish was looking too low!!
Now we're getting somewhere, elevation for the prime should be around 45 Degrees, not 25 as for the offset.
Kindest Regards, " The Druid ".
When you say you have this signal level, do you have a picture?
The point is your probably not pointing at the sat.
Once you have a pic play with your skew and the distance the LNB is in or out of the feed horn.
From memory the LNB sits generally 5mm to 1.5 cm into the dish through the feed horn for the best focal point for most mesh dishes.
Removing the the cap off the end helps for a better signal.
Maybe you are picking up some TI (terrestrial interference) also.
I assume th TP is for pas8, right I'll crank the dish up to 45degYep 45deg roughly like mentioned above. I've only played with the skew on my southern cross LNB so I'm not sure how others compare wrt to mine. (not like Ku where you can say 5 O'clock etc) Also you can adjust the focal point with the lnb. I just used a cheapy sat meter and once I was on the sat I had to play with the LNB. As I moved the dish I could see I was hitting the sats on the clarke belt so I knew the sat meter was working, I was just not getting pics. Once I played with the skew bingo. I was like 90deg out.
Pick a nice strong TP like 3940 H 27690-7/8 and you should see BBC world.
Keep plugging....
Leroy
This dish has a polar mount as well, I think at this stage that might be a bit too complicated for yet!! just leave it fixed in 1 position.
According to Gorbtrack elevation for perth is 38.27 deg. 45 is over east. I didn't know were you were til a few posts ago but 25 was too low.
Leroy
Mea Culpa.
That's not the answer unfortunately. Prime focus elevation for Perth is 25 Degrees. So you were right in the first place for PAS8.
It's less than 1 degree for an offset from Perth.
Kindest Regards, " The Druid "......................
A Trap for young players.
Sorry Leroy, the data you have given is for Perth, Victoria.
If you check GorbTrack you'll find there are two Perths.
I almost fell for it too.
Kindest Regards, " The Druid ".
yes you are correct. I checked with dishpointer and thought WTF!! Then went back to Gorbtrack to confirm.
Leroy
Is there a way to test the LNB, I'm starting to beleive it's not working.
I've moved the dish up down right & left well past the suspected setting & never got any signal quality anywhere, took the LNB out & waved it around still the same, might try a new piece of rg6 - grasping a straws now.
bloody hell KU band wasn't this hard!!
You should see the S level on the receiver change when you put your hand over the throat of the LNB. This will 'kind of' prove the entire converter is functioning....if the front-end devices were broken you may still see output from the mixer and IF stages.
Try the hand on throat test, and be aware that different brands/models have the input probes 90 degrees out from other LNBs which obviously changes the angle at which the F connector sits when the LNB is skewed correctly.
It will all become easier when you eventually find a signal.
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