Can some one please explain this to me (1 Viewer)

Register Today to see less ads! It's Free!
Status
Please reply by conversation.

TMair

Thread Starter
SatelliteGuys Pro
Jan 12, 2010
338
0
Midway, Utah
A couple of months ago I subbed to the networks from SRL on W-3, I had trouble with reception I replaced my Eagle Aspen LNB with a new Norsat 8515 that helped, but still took a few seconds to get a lock, I replaced my cable from the LNB to my receiver, the old one got cut up by the guy who installed the sprinkler system:mad:, I never told him it was there, my fault:eek:.
I also have a DVB box hooked up to the same line, when ever I would hook up the DVB it was very hard to get a lock at all on W-3, some times never get a lock, when I bypass the DVB I would get locks after a few seconds again, I have a splitter for the cables to go to both receivers, and a DiSEgC Switch, anyway today I decided to make it easier to switch from the splitter to just the 4Dtv receiver by putting on the cables that you just push on, I put in a threaded splice so I could hook up the push on cable, thinking that I would just unplug it from the splitter and push it onto the in for the 4Dtv, now I get a lock almost immediately even with the splitter in place, I don’t have to bypass the splitter, the only thing I did different was hook up that cable in line with the splice, so why am I able to get a lock now?

Thanks Terry
 
Register Today to see less ads! It's Free!

tvropro

On Vacation
Mar 9, 2007
6,872
0
Are you using a Hi Block Splitter with DC power pass to one port? I have my 4DTV split with the power going to the 4DTV for C band. The non power pass side feeds a port on the Diseqc switch. The Diseqc also has 2 ku dishes fed to it and power is passed from the Visionsat to those LNBF's. This would be a proper way to hook it up.

If your using a splitter that passes power on each port that could be an issue. Also all jumper cables are not created equal. Some lengths will cause a change in the SWR that can create reflections on the line. I have seen with different cables and lengths quality numbers change. This is because of standing waves.

What I think happened is the cable your using now is actually matched better (lower SWR) which is reducing BER and causing faster lockup.
 

TMair

Thread Starter
SatelliteGuys Pro
Jan 12, 2010
338
0
Midway, Utah
Thanks for the reply
Yes I am using the bypass splitter using the 4Dtv to power the C band side, I have the Ku side going directly to the Diseqc switch.

Just wanted to clareify I did not remove any cable, I just added a length so I could push it on rather then screw it on making a quick coupler so to speak.
Thanks again
Terry
 

tvropro

On Vacation
Mar 9, 2007
6,872
0
Thanks for the reply
Yes I am using the bypass splitter using the 4Dtv to power the C band side, I have the Ku side going directly to the Diseqc switch.

Just wanted to clareify I did not remove any cable, I just added a length so I could push it on rather then screw it on making a quick coupler so to speak.
Thanks again
Terry

By adding cable length you effectively changed the standing wave and reflected power. SWR 101 :)
 
Register Today to see less ads! It's Free!

tvropro

On Vacation
Mar 9, 2007
6,872
0
Not a problem, glad I could shed some light on the subject.

You can read some here: [ame="http://en.wikipedia.org/wiki/Standing_wave_ratio"]Standing wave ratio - Wikipedia, the free encyclopedia@@AMEPARAM@@/wiki/File:Standing_Wave_Ratio.svg" class="image"><img alt="" src="http://upload.wikimedia.org/wikipedia/commons/thumb/9/98/Standing_Wave_Ratio.svg/720px-Standing_Wave_Ratio.svg.png"@@AMEPARAM@@commons/thumb/9/98/Standing_Wave_Ratio.svg/720px-Standing_Wave_Ratio.svg.png[/ame]
 
Register Today to see less ads! It's Free!
Status
Please reply by conversation.

Users who are viewing this thread

Users Who Are Viewing This Thread (Total: 0, Members: 0, Guests: 0)

Latest posts

Top