ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Where is Everyone?
by luckyshadow - 11/21/21 10:14 AM
It's been an interesting career
by The Watt Doctor - 11/19/21 09:56 AM
Well I am back to stay (nearly 6 years)
by The Watt Doctor - 11/19/21 09:17 AM
Motor Load Relationships Between Fans and Pumps
by The Watt Doctor - 11/18/21 09:24 AM
GFCI's pops in large numbers
by dsk - 11/05/21 06:45 AM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
0 members (), 42 guests, and 13 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Jul 2007
Posts: 1,335
S
Member
I may get bashed for this and understandably so. Is there any "tricks of the trade" for testing the dish cables without the specialize testing equipment? I only ask because the system in at a remote site and rather expensive to send a specialist out there if it turns out to be simple fix. At the moment, I'm not sure what the issue even is

Last edited by sparkyinak; 05/06/14 09:16 PM.

"Live Awesome!" - Kevin Carosa
Joined: May 2005
Posts: 984
Likes: 1
G
Member
Depending on how much the service call is and how much a new cable would cost; I would run a new cable on the ground and through a window to see if it works. If so, you've found the problem. If not, you've saved the embarrassment of paying for a service call only to find out that it was a bad cable.


Ghost307
Joined: Jul 2004
Posts: 9,672
Likes: 7
G
Member
I just had a problem with a 75 ohm coax (or something at the end). I started by checking for a short (shield to stinger) with both ends disconnected. Then I plugged a terminator on one end and looked for the ~75 ohms at the other.
As a sanity check I plugged it into the AV video jack of the TV with an RCA adapter and hooked a camera to the other end. That proved the cable was good to me.

My problem turned out to be on the driven end, verified by dragging a monitor there and hooking it up with another short cable.


Greg Fretwell
Joined: Nov 2005
Posts: 826
J
Member
Well, you could ask someone to go out to the LNB with a DMM. They should read roughly 12 or 18VDC on the RG-6, depending on the polarization. Both voltages are OK to power the Low Noise Block down converter and the voltage difference is sensed to select CW or CCW polarization. There's obviously a ton more frequency division multiplexed stuff on that cable, but the DC is easy to look for. If they see the DC there, they might have a 2nd LNB connector they can try. I think most of the dishes have dual feeds. I imagine you already checked: Menu/Setup/System Setup/Satellite/View Signal Strength, for each transponder.
Joe

Joined: May 2003
Posts: 1,157
Member
How many receivers are on the system, just asking in case this is like a work camp setup.

send me a FB message if you have more questions.

Joined: Nov 2005
Posts: 826
J
Member
So what happened?

Joined: Jul 2007
Posts: 1,335
S
Member
I didn't make it out there but I fwd the info. They reported back the part the reflector bounces the signal off of was defective


"Live Awesome!" - Kevin Carosa

Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
CDS
CDS
Nicholson Ga
Posts: 34
Joined: June 2006
Top Posters(30 Days)
Admin 3
dsk 2
Popular Topics(Views)
286,222 Are you busy
218,658 Re: Forum
204,851 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5