1-tonmudder
1/2 ton status
Does anybody know of a source to get ant coax on a roll,and crimpable ends.I am running it thru my roll cage and need it without ends.Yeah I tried all the truck stops and Radio shack.
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
CB coax
- Thread starter 1-tonmudder
- Start date
Home Depot or Lowes if they have those stores in your area. You can get them in 500ft. rolls and maybe less or have them cut off how ever many feet you need. Is this for a CB or a stereo antenna? If this is for a CB i think you're asking for a no reception problem from an RF choke.
1-tonmudder
1/2 ton status
Yeah it's for a CB.Why would I have a reception problem??
Because the coax will be fully enclosed in steel tubing. I would ask your local CB shop or the place that sells CB's.
why would that matter if he has his antenna? Or does the cb use the coax as part of the antenna loop?
1-tonmudder
1/2 ton status
I have a plate mounted overhead to mount the CB on and will be running it thru the tubing.About 12 feet will be ran thru the tubes
readymix
3/4 ton status
Buy some RG8X anywhere.
I like http://www.1stopelectronics.com/ just because I have dealt with Frank many times before.
Don't get the crimp on ends. I use the solder in PL259's but some people can't solder.
I like http://www.1stopelectronics.com/ just because I have dealt with Frank many times before.
Don't get the crimp on ends. I use the solder in PL259's but some people can't solder.
pauly383
Daddy383
I doubt 12 foot would be a problem .
I got some running through a steel mast from my roof to my balun and antenna on top of my house ...... and I am listening to Washington State calling CQ this morning on 14.240 ..... I am in Arizona
I got some running through a steel mast from my roof to my balun and antenna on top of my house ...... and I am listening to Washington State calling CQ this morning on 14.240 ..... I am in Arizona
pvfjr
1/2 ton status
I think the cable is suppose to be right at 12 foot right? Oh, and X2 on the soldered ends. Don't go crimped, they do nothing but corrode and give you bad connections.
readymix
3/4 ton status
18Ft
1978Blazerk5
1/2 ton status
is that one of those cb myths to use coax in incrments of 9? is that a myth or is there some truth to that?readymix said:
readymix
3/4 ton status
I never cared to follow the 18ft rule. I just make it the length I need.
pauly383
Daddy383
1978Blazerk5 said:
Yes its a myth , most CB knowledge of coax and feed lines is a myth . Ask an engineer , the ARRL handbook , the FCC , Al Gore ( he invented radio you know ) , anyone with actual knowledge of the subject and they will all say it doesn't matter if the radio and antenna is installed properly .
The length of coax does add loss to the line , but anything under 25 feet and a 4 watt cb still puts out over 3 watts if the swr is under 2 to 1 .
And do not use coax to adjust the swr , that is wrong , adjust the antenna .
barneybasher1010
1/2 ton status
http://www.copper.com/cart/ I have had good experience with theese guys and decent prices.
readymix
3/4 ton status
pauly383 said:
Awsome. Here is the loss of 25' of RG8x
freq = 27.185 (ch19)
VSWR = 1.2:1
PWR in = 4W
PWR out = 3.652W
SWR loss = .006dB
Match loss = .39dB
Same at 100'
freq = 27.185 (ch19)
VSWR = 1.2:1
PWR in = 4W
PWR out = 2.782
SWR loss = 0.018
Match loss = 1.558
1978Blazerk5
1/2 ton status
readymix said:
Wow I am so Counfused
readymix
3/4 ton status
It's all tech talk. I was just re-affirming what Pauly said about the minimal losses even at 25 feet of coax.
I used RG8X because that is what I always use unless I was to have a huge amp. Not likely though.
The VSWR I picked of 1.2:1 is because it is very achievable with a 102"SS antenna without any work. With a mag mount it is also doable if you set it up correctly.
Did that help at all? If not i'll try to expound a little.
I used RG8X because that is what I always use unless I was to have a huge amp. Not likely though.
The VSWR I picked of 1.2:1 is because it is very achievable with a 102"SS antenna without any work. With a mag mount it is also doable if you set it up correctly.
Did that help at all? If not i'll try to expound a little.
1978Blazerk5
1/2 ton status
It helped a little bit
Hopefully not taking this off-topic, are those numbers what is being talked about when I hear of "matching" a setup, cable length, antenna, etc?
All I know is there is some sort of meter that is hooked up, you find the right antenna length based on the reading on the meter, and you are done.
So is that pointless, or something that needs done to make your CB last? (talking an application like we might have in our trucks)
All I know is there is some sort of meter that is hooked up, you find the right antenna length based on the reading on the meter, and you are done.
So is that pointless, or something that needs done to make your CB last? (talking an application like we might have in our trucks)
pvfjr
1/2 ton status
The SWR meter and tuning the antenna (or at least checking it) is absolutely necessary. You want as close to a 1:1 ratio as possible. Below 2:1 is OK, 3:1 and above, you shouldn't be using your radio.
