Quality Coax

[navychop]

Trust me, if you don't handle much coax, you'll find it DOES matter. Stick with dual shield.

I doubt that any cablecos are still using RG59, but it's possible. Certainly, there's a lot of RG59 imbedded in walls.

 

[MikeD-C05]

Trust me, if you don't handle much coax, you'll find it DOES matter. Stick with dual shield.

I doubt that any cablecos are still using RG59, but it's possible. Certainly, there's a lot of RG59 imbedded in walls.

I know my local cable company only uses Rg 6. TimeWarner did and now Spectrum that took them over does as well.

 

[Claude Greiner]

Quad shield 100% copper center conductor American made such as Comscope or Belden.

Unless your putting it in a wall, it really makes no difference.

Call your local Directv dealer, chances are they have perfect vision cable which is the best value In the industry.

 

[Jackonearth]

Quad shield 100% copper center conductor American made such as Comscope or Belden.

Unless your putting it in a wall, it really makes no difference.

Call your local Directv dealer, chances are they have perfect vision cable which is the best value In the industry.

Actually, some of the cable will be going into the wall. What kind of cable would you recommend for that?

 

[chiodo]

I've used cheap "Super Bright" RG6 coax that is made in China that says 3ghz on it and never had an issue, oddly with better results than an old Commscope R6 cable that was given too me.

 

[Jackonearth]

I've used cheap "Super Bright" RG6 coax that is made in China that says 3ghz on it and never had an issue, oddly with better results than an old Commscope R6 cable that was given too me.

What do you mean "Super Bright"?

 

[chiodo]

What do you mean "Super Bright"?

Some cheap stuff, that was the name brand Super Bright, 3ghz satellite TV coax (made in China) on box.
I purchased a 500 foot roll (pull box) online, long ago for aprox $29. plus shipping.
and I used it on a few projects long ago never had any issues with that cable using DPP lnb's with DPP44 switches and all.
Then I was given an old spool of Commscope RG6 and used that and had some issues. Was surprised, but that spool was for cable TV.

 

[Jackonearth]

Some cheap stuff, that was the name brand Super Bright, 3ghz satellite TV coax (made in China) on box.
I purchased a 500 foot roll (pull box) online, long ago for aprox $29. plus shipping.
and I used it on a few projects long ago never had any issues with that cable using DPP lnb's with DPP44 switches and all.
Then I was given an old spool of Commscope RG6 and used that and had some issues. Was surprised, but that spool was for cable TV.

What happened with the Commscope cable?

 

[chiodo]

It sits in storage and a part of my coax cable collection. One day I'm going to open a museum with all the different types and brands of coax cable, I have.

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[Brussam]

For RVing where the cable is coiled up between moves, solid copper core makes a real difference in keeping the cable pliable .

 

[arlo]

Correct me if I'm wrong. I had to do a quick search 'when should i use quad shielded'.
Everything I read makes sense. In the amateur radio world quad shield can make a big difference if you live in an RFI saturated area. Where I live there is literally none. I use LMR400 and 9913 for my runs. A piece of double shield 50 ohm made no difference.
Pay attention to dB loss per foot and maximum frequency you need to go out to.
Your LNB is amplified into the cable. Loss/ft. makes a big difference if you're running the cable to the limit of specs to the dish. The best spec. cable won't do any good if the jacket is crap. Or if you allow it to get damaged, a squirrel eats it, etc.
Now if you're going Cadillac and you just want to drop money by all means get the best you can afford. Don't forget the connectors because quad shield is going to need correct ones.
But signals will be digital and that's the difference between great cable in the analog world and not.

When should you use quad shielded cable? - The Solid Signal Blog

Does your installation need quad shielded cable? It's quite possible it doesn't!

blog.solidsignal.com

 

[eddie willers]

It sits in storage and a part of my coax cable collection. One day I'm going to open a museum with all the different types and brands of coax cable, I have.

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I hoarded all my S-Video cables until they became hopelessly obsolete.

 

[navychop]

Sadly, I still have some. Next to my BNC connectors...

 

[chiodo]

I hoarded all my S-Video cables until they became hopelessly obsolete.

Well I'm not really hoarding or doing this all on purpose I just happen to acquire lots of RG6 Cable, but I also have various rolls of 50 ohm cable since I'm also an amateur radio operator. I can use my spare RG6 for ham radio use whether it be feedline or making dipole antennas. Bottom line is I'm not getting rid of any coax cable I can get my hands on. I still have a 500' reel of Cat 3 cable I was offered it for free and accepted it, thinking I may find some use for it but still haven't.

 

[Frank Navin]

Correct me if I'm wrong. I had to do a quick search 'when should i use quad shielded'.
Everything I read makes sense. In the amateur radio world quad shield can make a big difference if you live in an RFI saturated area. Where I live there is literally none. I use LMR400 and 9913 for my runs. A piece of double shield 50 ohm made no difference.
Pay attention to dB loss per foot and maximum frequency you need to go out to.
Your LNB is amplified into the cable. Loss/ft. makes a big difference if you're running the cable to the limit of specs to the dish. The best spec. cable won't do any good if the jacket is crap. Or if you allow it to get damaged, a squirrel eats it, etc.
Now if you're going Cadillac and you just want to drop money by all means get the best you can afford. Don't forget the connectors because quad shield is going to need correct ones.
But signals will be digital and that's the difference between great cable in the analog world and not.

When should you use quad shielded cable? - The Solid Signal Blog

Does your installation need quad shielded cable? It's quite possible it doesn't!

blog.solidsignal.com

Makes no difference today. Sad to say the quality of the cable coming from China today is very good.

The only advantage I can see going to 100% copper or quad shied coax is the ability to pass power back to the LNB.

Back in the early days the better quality cable used to make a difference sending legacy switch commands from the receiver to the switch. Such in the case of an SW21 for example.


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[sam_gordon]

The only advantage I can see going to 100% copper or quad shied coax is the ability to pass power back to the LNB.

ALL cable would have to pass power back to the LNB. Heck, even RG59 does that. No power to the LNB would result in no signal. You don't need 100% copper or quad shield in order to accomplish that.

 

[Frank Navin]

ALL cable would have to pass power back to the LNB. Heck, even RG59 does that. No power to the LNB would result in no signal. You don't need 100% copper or quad shield in order to accomplish that.

I forgot to mention it makes a difference for longer runs where voltage drop plays a factor.

I have seen situations in a 13/18 volt situation where the voltage drop was so bad the LNB could not change polarities at around 500 feet.

Quad shield acted as a bigger conductor to carry more electricity.


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[the mack]

I have seen situations in a 13/18 volt situation where the voltage drop was so bad the LNB could not change polarities at around 500 feet.

Quad shield acted as a bigger conductor to carry more electricity.

That is why the recommended max length is 200'
I have used a 450' run of rg6 but had to use a dpp44 power inserter and a sonora amp because the tuner 2 signal on my 722k was low. Tuner 1 was fine but the amp worked like a champ to improve the tuner 2 signal.

I can't see how quad shield would help voltage drop as the center conductor is still 18 gauge.

 

[arlo]

Wow. 500 feet is pressing it. A simple voltage drop calculator for 22 VDC through 18g copper wire at 1 amp shows a 29% drop and resulting voltage at the termination of 15.6 VDC. Yeah I can see where there is a switching problem. Time to go commercial with a larger center conductor. FTA LNB's with lower current draw might be ok, but DN and Direc LNB's are current eaters.

 

[NYDutch]

I've successfully tested a Hopper 2 with 250' of non-3Gz swept RG6 in 50' lengths connected by F/F bulkhead connectors. Signal level drop was negligible, and my meter barely registered any voltage drop at no load.