Right so you would have been used to the old Optus B1 sat, which was transmitting vertically from it's SkyTV transponders (13v)
Optus D1 is a much more stronger signal but it is transmitting horizontally from the NZ transmitters, which means the LNB requires 18v to operate.
If you are having a lot of rainfade issues and are sure the dish is correctly aligned then I would unplug the cable from the LNB and test with a multimeter to make sure the decoder is sending up enough power.
Those old hex crimps you used to use back in the day are well known to cause problems.
tweake,
Mar 5, 8:44pm
never had to much trouble with the crimps, tho there was a few tricks to it. a lot better than the two piece ones i used when i first started!
jeremy_74,
Mar 5, 8:52pm
The old hex crimps worked ok with the old Sat at 13v, but once Optus D1 took over duties Sky soon found out they were a problem.
Most trouble calls I had, 7/10 times it was just a matter of changing the old Hex crimps to radial crimps.
tweake,
Mar 5, 9:14pm
i will keep that in mind. i think i still have those old hex crimps. do you remember which brand was the problem? or what the fault was with the plugs?
jeremy_74,
Mar 5, 9:22pm
It was all hex crimps in general. They don't make a seal and can let moisture in which can cause a voltage drop. They also let in radio interference. Sky tell there techs that they must change them if they see any on a job. Even if everything is working fine.
Whether the tech does is another story.
tweake,
Mar 5, 9:43pm
biggest thing i used to find was they never folded the braid back and it sat loose inside. the old cheap barrel strippers where handy as it allowed you to make a longer braid, which gave a better crimp and the braid was crimped in hard.
none where water proof and a lot of techs never sealed the outside connectors anyway. connectors corroded on was fairly common. unfortunately water got sucked down the braid fairly well.
when i finished radials had just started being used and compression fittings where coming in.
jeremy_74,
Mar 5, 9:48pm
Yes have seen a lot of bad crimp jobs over the years too.
Amazing how many problems a 50cent crimp can cause eh.
tweake,
May 3, 4:31pm
o yeah!
at least sat makes good reception very easy to do. putting up with a bit of rain fade is minor compared to the crap we used to get with VHF/UHF.
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