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Direct TV testing work arounds? #213461
05/06/14 10:01 PM
05/06/14 10:01 PM
S
sparkyinak  Offline OP
Member
Joined: Jul 2007
Posts: 1,331
Alaska
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 10:16 PM.

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Re: Direct TV testing work arounds? [Re: sparkyinak] #213462
05/07/14 06:37 PM
05/07/14 06:37 PM
G
ghost307  Offline
Member
Joined: May 2005
Posts: 935
Chicago Illinois USA
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
Re: Direct TV testing work arounds? [Re: sparkyinak] #213463
05/07/14 11:12 PM
05/07/14 11:12 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,199
Estero,Fl,usa
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
Re: Direct TV testing work arounds? [Re: sparkyinak] #213464
05/08/14 08:30 PM
05/08/14 08:30 PM
J
JoeTestingEngr  Offline
Member
Joined: Nov 2005
Posts: 791
Chicago, Il.
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

Re: Direct TV testing work arounds? [Re: sparkyinak] #213470
05/13/14 04:49 AM
05/13/14 04:49 AM
dougwells  Offline

Member
Joined: May 2003
Posts: 1,143
kamloops BC Canada
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.

Re: Direct TV testing work arounds? [Re: sparkyinak] #213485
05/22/14 09:35 PM
05/22/14 09:35 PM
J
JoeTestingEngr  Offline
Member
Joined: Nov 2005
Posts: 791
Chicago, Il.
So what happened?

Re: Direct TV testing work arounds? [Re: JoeTestingEngr] #213488
05/23/14 04:35 AM
05/23/14 04:35 AM
S
sparkyinak  Offline OP
Member
Joined: Jul 2007
Posts: 1,331
Alaska
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


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