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Sky low quality on 8 way lnb

Messages
15
Likes
0
My Satellite Setup
Technomate 3500+usb
Stab Motor
90cm dish
My Location
Costa Brava
#1
Hi
i do satellite installs in spain, and i have to rectify a job run in by someone else,it's a 8 way lnb with all the 8 slots in use,it appears that the cable runs thru the house were complicated and therefore all the 8 cables have at least three places along the run where a coupler/barrel have been used.
when i test the signal at the satellite it is very good signal strength and picture quality is pretty good. however when i test at the other end of the cables the picture quality is very bad but signal strenghth is more or less the same as when tested at the dish.

Q. is the loss in picture quality a direct result of the couplers?

Q.is there anything else i could try or do ?

any advice would be greatly apreciated

the dish is 80cm (fine for this region of Spain) televes and the lnb is televes,and the signal is fine on all slots at sat end.

Thxs in advance:)

metadata
 

aba

Regular Member
Messages
173
Likes
0
My Satellite Setup
chaparral montery 40 fully loaded
ehcostar ad3600ipvia
3 dishes zone 2 / 1 mt motorized / 2.3 m motorized
My Location
nottingham
#2
is that 3 connectors in each run yes will drop signal 3 joins not good
and what coax and what length are they useing
 
Messages
15
Likes
0
My Satellite Setup
Technomate 3500+usb
Stab Motor
90cm dish
My Location
Costa Brava
#3
aba said:
is that 3 connectors in each run yes will drop signal 3 joins not good
and what coax and what length are they useing
yes its three connectors per run and probably an average of 40m runs
 
Messages
15
Likes
0
My Satellite Setup
Technomate 3500+usb
Stab Motor
90cm dish
My Location
Costa Brava
#4
sorry also the cable is televes seems very good quality evry thick and a good sheilding
 

Analoguesat

Administrator
Staff member
Messages
45,386
Likes
8,112
Location
Scottish Borders
My Satellite Setup
TM 5402HD
Skybox F3
Sky+ UK.
My Location
Scottish Borders
#5
Try a direct run of temporary cable from dish to receiver on each of the lnb outputs in turn. If the pic is then ok you are looking at replacing all the cabling......
 
Messages
15
Likes
0
My Satellite Setup
Technomate 3500+usb
Stab Motor
90cm dish
My Location
Costa Brava
#6
Analoguesat said:
Try a direct run of temporary cable from dish to receiver on each of the lnb outputs in turn. If the pic is then ok you are looking at replacing all the cabling......
thxs for that ... I already did that and its fine,i figured that the problem was the breaks,but it is only really bad in three rooms (ie:no itv). is there anyway of boosting signal for these three?...as i think re-running cables is nigh on impossible.
 

iwol

Specialist Contributor
Messages
688
Likes
11
My Satellite Setup
channel master 1.2m dish
technomate 6900,,and invacom 0.3 quad lnb
satlook micro
My Location
yorkshire
#7
hi what about trying an inline amp on the lnb run on one of those which is poor dont like them personally but in you case it might be worth trying good luck
 

iwol

Specialist Contributor
Messages
688
Likes
11
My Satellite Setup
channel master 1.2m dish
technomate 6900,,and invacom 0.3 quad lnb
satlook micro
My Location
yorkshire
#8
youa could also try swapping leads over at the lnb bacause some outputs on a 8 way lnb are stronger than others
 

aba

Regular Member
Messages
173
Likes
0
My Satellite Setup
chaparral montery 40 fully loaded
ehcostar ad3600ipvia
3 dishes zone 2 / 1 mt motorized / 2.3 m motorized
My Location
nottingham
#9
40 m runs for that length you want some thing like ct 125
ct 100 / wf 100 / telleves coax is fine for runs upto about 25 m after that you want a lot better quility coax