RG6 Cable

[Jackfish]

Ok I know it would be nice to have one rg6 cable but will splices in the line lose to much signal

[wejones]

Originally Posted by Jackfish

Ok I know it would be nice to have one rg6 cable but will splices in the line lose to much signal

I know that other people will disagree, but in my opinion, unless you have a very long (greater than 250' ) cable run, you most likely won't see any difference.

[bobkat]

Originally Posted by wejones

I know that other people will disagree, but in my opinion, unless you have a very long (greater than 250' ) cable run, you most likely won't see any difference.

I agree... 8)


If the cable is spliced (ie: connected with F81 couplers) outside make sure moisture will not find its way into the connection -- use silicone connectors and tape the splice with electrical tape.

[moving this thread to INSTALLATION because it has nothing to do with Twinhan receiver cards]
kat

[purceltorius]

There is always an insertion loss when using f-81's. It is typically 3.5 to 4.5 db. In my travels of sat installations, I have come across many bizarre service-calls. I will give you now the height of stupidity!! My client complained of low signal, and sometimes no signal at one of her receivers. Upon further investigation, I found 6 f-81's used in conjunction with a variety of different pieces of rg-6, rg-59, and 1 cable splitter!! There was also a piece of old cable BC. A typical piece of cable, but with a rigid outer shield, instead of a flexible wire braid!! All this to say that, YES, there is substantial loss when using f-81's.

Regards, GARY.

[bobkat]

Originally Posted by purceltorius

There is always an insertion loss when using f-81's. It is typically 3.5 to 4.5 db. In my travels of sat installations, I have come across many bizarre service-calls. I will give you now the height of stupidity!! My client complained of low signal, and sometimes no signal at one of her receivers. Upon further investigation, I found 6 f-81's used in conjunction with a variety of different pieces of rg-6, rg-59, and 1 cable splitter!! There was also a piece of old cable BC. A typical piece of cable, but with a rigid outer shield, instead of a flexible wire braid!! All this to say that, YES, there is substantial loss when using f-81's.

Regards, GARY.

LOL !!! :lol: Yup, that many splices and weird cables would eat up 90% of the guys's signal... :shock:

kat

[wejones]

Originally Posted by purceltorius

There is always an insertion loss when using f-81's. It is typically 3.5 to 4.5 db. ......
...... All this to say that, YES, there is substantial loss when using f-81's.

I'd have to disagree with this. While I'm sure there there is probably some measurable insertion loss, there is no way that it can be 3.5-4.5 DB. I doubt that anyone without sophistocated instruments could notice the difference. I can state for certain that inserting 2 couplers did not change the signal level at all on one of my dishes, and even adding a coupler and an extra 75' of RG-59 instead of RG-6 did not noticably change the signal level on another of my dishes.
If transmitting were involved, I'd be inclined to stay away from couplers, but for receiving, I see no problem.

[thecableguy]

Rg 59 will work but it will put extra stress on the receiver.
Rg6 2.25 gig min rated is good coax, and use 3 gig barrel conenctors if nessasary. I have seen 3 or 4 connections, with minimal loss. The loss will happen on long cable runs, or poorly spliced cables, or in adequate coax grade.