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Reception of channels with horizontal polarization works, vertical not

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My Satellite Setup
Hellas 39
My Location
Belgium
#1
Hi,

I have a new dish pointed corectly toward HELLAS2 (39E) but I can't receive ANY channel sent with vertical polarization. Channels with horizontal polarization works perfectly.
The signal strength shows 90% for all channels with horizontal polarization but 0 for all those with vertical polarization.
The LNB is universal and I have also tried to replace it by another one. Its rotation (skew) is correctly set, according to my location (24 degrees clockwise). I have tried to turn it to different positions all around 360 but no luck with reception of channels with vertical polarization.
Any idea what to do?

Thanks in advance
 

Channel Hopper

Suffering fools just so you don't have to
Staff member
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#2
What size dish are you using?

Can you get signals on both polarities from the nearby satellites (42 E ) ?
 
Messages
5
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My Satellite Setup
Hellas 39
My Location
Belgium
#3
What size dish are you using?

Can you get signals on both polarities from the nearby satellites (42 E ) ?
The dish is 90 cm. I haven't tried other satellites; I cannot move the dish because it has been fixed on the neighbour's roof.
 

Mickha

Super Moderator
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#4
Either your receiver isn't changing the polarity, or more likely the LNB is faulty.
Try your receiver on a different dish, and check you can get vertical polarity channels.
If your receiver is fine check the connections, and cable, then try the LNB on a different set up.
 

Trust1

Specialist Contributor
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#5
Faulty lnb I dont think because it was changed by another one .
Maybe wrong lnb setting , should be "universal"
Or receiver is sending lnb voltage over 14 volt at Vertical mode
 
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My Satellite Setup
Hellas 39
My Location
Belgium
#6
LNB was changed, indeed.
The setting is correct, Universal LNB.
I checked the voltage, the receiver is sending 12,8V at all time.
Tried to put a little Sat finder device between the LNB and the receiver, at receiver side. It shows a proper signal at all time. When I switch to horizontal polarity, a led is shortly flashing and then it lights up, indicating the H polarity. When I switch to vertical polarity channels, the led is flashing every 3 seconds.
 

Channel Hopper

Suffering fools just so you don't have to
Staff member
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My Satellite Setup
A little less analogue, and a lot more crap.
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#7
Which receiver ?

Can you borrow another ?
 
Messages
5
Likes
0
My Satellite Setup
Hellas 39
My Location
Belgium
#8
Faulty lnb I dont think because it was changed by another one .
Maybe wrong lnb setting , should be "universal"
Or receiver is sending lnb voltage over 14 volt at Vertical mode
The setting is correct, Universal LNB.
I checked the voltage, the receiver is sending 12,8V at all time.
 
Messages
5
Likes
0
My Satellite Setup
Hellas 39
My Location
Belgium
#9
Which receiver ?

Can you borrow another ?
I took the receiver to my mom's apartment and mount it on her dish. It works perfectly there.
I wonder if the length of the cable has anything to do with this. It reaches 150 ft (45m). I've added an amplifier which boosts the signal to 99% on the horizontal channels but doesn't change anything on vertical ones.
 

scopus

Specialist Contributor
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Channel Master 1.8 Motorised, C/Ku/Ka and a 1.2 Fibo Gregorian Motorised, Ku/Ka all connected to a TM 8000, 5402M3, 5302, Dr HD F15 and Amiko A3, plus a Satfinder5 Spectrum Analyser. Sansui A9 Amp and BOSE Acoustimass speakers for the audio.
My Location
Staffs UK
#10
LNB was changed, indeed.
The setting is correct, Universal LNB.
I checked the voltage, the receiver is sending 12,8V at all time.
Tried to put a little Sat finder device between the LNB and the receiver, at receiver side. It shows a proper signal at all time. When I switch to horizontal polarity, a led is shortly flashing and then it lights up, indicating the H polarity. When I switch to vertical polarity channels, the led is flashing every 3 seconds.
If the receiver is ending out 13V all the time even in Horizontal mode then it is faulty. It should switch to 18V when a Horizontal channel is selected.
 

a33

Member
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My Satellite Setup
XSAT410
Clarketech HD4100+
My Location
NL
#11
I've added an amplifier which boosts the signal to 99% on the horizontal channels but doesn't change anything on vertical ones.
Maybe the amplifier is cause of the problem, then? Or was this just a test, and you didn't have it permanently?

Was the voltage still the same (12,8V) at your mom's appartment?

BTW: Tom started a parallel-thread here: Reception of channels with horizontal polarization works, vertical not
So to not do unneccesay work: check there also.

greetz,
A33
 
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