Thanks for this great great video. QUESTION: What are the major problems you might experience with a shorted cable? What effect does it have on the radio?
If the antenna system is a standard antenna syste (not NGP) you will likely have extremely high SWR. No matter how you adjust the antenna your SWR will not go down. You risk damaging the radio due to the high SWR. You will experience extremely poor transmit.
Very good video. Maybe go a step further and cut the connector off and test the center and shielding to see if the cable itself is shorter or just the fitting
Thanks for a great video - dumb question: I’m guessing I need to tune my antenna because my antenna checks out good for continuity in all three meter connection tests? It’s a basic mag mount antenna with spring near base, upper is a solid wire
When you say "tune" your antenna, do you mean using a SWR meter? I'm hooking up a vintage CB on a new truck, and knew nothing about SWR back in the 1980's, even though the Uniden had a meter built in. CB worked, probably just out of luck, but now I know the importance of making sure it works to it's best potential. Bought a stand-alone SWR meter, I hear they are more accurate
My coax is good, going to look for video on antenna as that appears to be shorted.. both lights go red,, system was out of the truck for 25 years, no clue if people played with antenna itself, but tested coax to antenna mount and was good.. center to shield becomes shorted when antenna is connected..some wideband waterproof whip with fiberglass looking end that works mint last time used...
i guess supposed to act shorted on the coil,, well then guess radio could have gotten wet, the weather portion still works, no static at all any squelch and pegs when touch mic..
Dear Johnny, Please disconnect the radio while checking your antenna coax for a short. Some radios such as the C75WXST will cause this interaction and give you a false positive on a short diagnosis. Disconnect the coax then check the coax again.
When I attach my radio to the antenna via coax I hold the antenna in my hand then have it touch the mount on my vehicle it'll arc then short out the fuses in my radio power cable, would that be a bad ground or short in the cable?
Dear @wrestlemaniac202 Thank you for contacting us! The reason you are blowing fuses is because the antenna needs to be mounted with a stud to the mount. An antenna stud will isolate the antenna and it will not make any actual contact with the mount. Mount the antenna properly and then check your SWR before transmitting. This link is to a stud but the second photo shows the diagram of how to assemble a stud. www.wearecb.com/stud-mount-3-8x24-thread-lug.html
I tested my cables and everything checks out. I have high SWR. It pegs the garage on my Cobra 29lx and flashes "CB Antenna Warning" when I try to transmit. I'm also only receiving within maybe a quarter mile. It's a 2019 Kenworth T680 with stock dual antennas. I'm not sure what to do.
@@Blenzo480 im honestly not familiar with that, antenna . But it definitely sounds like you need to tune the antenna itself , if its a fibreglass antenna there are usually to rings at the bottom for tuning, if it is an antenna with different sections, you need to adjust them , .its not your coax or plugs ,you need to tune the antenna my friend.,
I have continuity from the center conductor to the threads on the base and the whip. Is the antenna bad? I installed my coax solder fitting, it tested good until I screwed the whip onto the fender mount base, then it read short, that's how I began testing the whip.
Unless the antenna is a NGP antenna, then that would be a short in the antenna system. There should not be continuity between the threads and the center pin. However you want continuity between the center pin and the whip.
Thanks for checking out our video! It really depends on several factors- the coax has been indoor, outdoors, exposed to weather, etc. If you test the coax with an ohm meter and it does not show continuity, the coax is likely defective and will need to be replaced. If the coax shows external damage, it is probably safe to say that you should replace the coax. We hope that helps!
@@TheRoadhammer379 A short, an open. It may show either in a static position then show the opposite in another. This test is not conclusive and hardware long since outdated. Ideally a link to something more current advising people how to use a good dvm, a dummy load and resistance/length calculations would prove a better pass/fail.
@@TheRoadhammer379 This test will show a short in the cable specifically if the cable is disconnected from everything else. If the coax cable is connected to the antenna stud and you use this technique to test the other side of the cable and you show a short, It may also be a short happening on the stud itself by being improperly assembled. We recommend doing this test with the coax disconnected from the system to rule out the coax itself.
@@tahotoy what is the difference between clockwise and counterclockwise. Do you need a dvm to answer this question? You can almost guess the age of any know-it-all smart-ass if the only thing they know is digital and they haven't a clue about analog. Isn't there a class you should be teaching somewhere? Here ya go, the difference between shit and shinola? Spit or wind your watch? Oh yeah, the watch, its Analog. Mechanical in nature and it moves ( get this) Clockwise. Believe it or not. We all survived the world before there were more than 3 channels on TV.
Question some of us don't know much about multi meters what did you set your meter on???
Ohms, a digital one is really nice, however a analog style such as the one in the video will suffice
brilliant video
Thanks for this great great video. QUESTION: What are the major problems you might experience with a shorted cable? What effect does it have on the radio?
If the antenna system is a standard antenna syste (not NGP) you will likely have extremely high SWR. No matter how you adjust the antenna your SWR will not go down. You risk damaging the radio due to the high SWR. You will experience extremely poor transmit.
@@wearecb thanks
Define what " continuity" is and how to set up the multimeter taking a close up of meter!
On his meter it is switched to the Ohm setting and x10
Very good video. Maybe go a step further and cut the connector off and test the center and shielding to see if the cable itself is shorter or just the fitting
cool thanks for the video! just what I needed.
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Thanks for a great video - dumb question: I’m guessing I need to tune my antenna because my antenna checks out good for continuity in all three meter connection tests? It’s a basic mag mount antenna with spring near base, upper is a solid wire
When you say "tune" your antenna, do you mean using a SWR meter? I'm hooking up a vintage CB on a new truck, and knew nothing about SWR back in the 1980's, even though the Uniden had a meter built in. CB worked, probably just out of luck, but now I know the importance of making sure it works to it's best potential. Bought a stand-alone SWR meter, I hear they are more accurate
My coax is good, going to look for video on antenna as that appears to be shorted.. both lights go red,, system was out of the truck for 25 years, no clue if people played with antenna itself, but tested coax to antenna mount and was good.. center to shield becomes shorted when antenna is connected..some wideband waterproof whip with fiberglass looking end that works mint last time used...
i guess supposed to act shorted on the coil,, well then guess radio could have gotten wet, the weather portion still works, no static at all any squelch and pegs when touch mic..
My apologies here. What setting on multimeter should i select? Thanks for your knowledge and assist2
I'm not sure with that one but with a basic craftsman meter the continuity setting (has a beep) should work.
The Ohms setting
How do you test a ng antenna tip to coupling it shows it has continuity?
Are there other ways to tell if your cable is sorted without the multimeter
Why does all wilson 5000 antennas have conntuity between the center pin and the outside sheild
What if you're testing the center with the outer shroud for continuity with the radio attached on the other end, and you do get continuity?
Dear Johnny,
Please disconnect the radio while checking your antenna coax for a short.
Some radios such as the C75WXST will cause this interaction and give you a false positive on a short diagnosis.
Disconnect the coax then check the coax again.
When I attach my radio to the antenna via coax I hold the antenna in my hand then have it touch the mount on my vehicle it'll arc then short out the fuses in my radio power cable, would that be a bad ground or short in the cable?
Dear @wrestlemaniac202 Thank you for contacting us!
The reason you are blowing fuses is because the antenna needs to be mounted with a stud to the mount.
An antenna stud will isolate the antenna and it will not make any actual contact with the mount.
Mount the antenna properly and then check your SWR before transmitting.
This link is to a stud but the second photo shows the diagram of how to assemble a stud.
www.wearecb.com/stud-mount-3-8x24-thread-lug.html
Thanks alot.keep it up
I tested my cables and everything checks out. I have high SWR. It pegs the garage on my Cobra 29lx and flashes "CB Antenna Warning" when I try to transmit. I'm also only receiving within maybe a quarter mile. It's a 2019 Kenworth T680 with stock dual antennas. I'm not sure what to do.
what antenna are you using?
@@liambelfast6001 Stock antennas on a 2019 KW T680
@@Blenzo480 im honestly not familiar with that, antenna . But it definitely sounds like you need to tune the antenna itself , if its a fibreglass antenna there are usually to rings at the bottom for tuning, if it is an antenna with different sections, you need to adjust them , .its not your coax or plugs ,you need to tune the antenna my friend.,
I have continuity from the center conductor to the threads on the base and the whip. Is the antenna bad? I installed my coax solder fitting, it tested good until I screwed the whip onto the fender mount base, then it read short, that's how I began testing the whip.
Unless the antenna is a NGP antenna, then that would be a short in the antenna system. There should not be continuity between the threads and the center pin.
However you want continuity between the center pin and the whip.
How often do you have to change the cable
Thanks for checking out our video! It really depends on several factors- the coax has been indoor, outdoors, exposed to weather, etc. If you test the coax with an ohm meter and it does not show continuity, the coax is likely defective and will need to be replaced. If the coax shows external damage, it is probably safe to say that you should replace the coax. We hope that helps!
You forgot to check the pin and housing on the other cord
Nope, result would have been the same, since he tested continuity of pins and shields already.
I checked my coax with my test meter and they is no sort on each end and my swr is 1.2.1
@@denniswatson8699, so what? 1.2:1 is 99% efficient.
No wiggle? No acceptable values? This does Not rule out a bad cable even in the 70's when that meter was standard issue.
Can you elaborate? If there's a short anywhere in the cable, this test would show it, right?
@@TheRoadhammer379 A short, an open. It may show either in a static position then show the opposite in another. This test is not conclusive and hardware long since outdated. Ideally a link to something more current advising people how to use a good dvm, a dummy load and resistance/length calculations would prove a better pass/fail.
@@TheRoadhammer379 This test will show a short in the cable specifically if the cable is disconnected from everything else.
If the coax cable is connected to the antenna stud and you use this technique to test the other side of the cable and you show a short, It may also be a short happening on the stud itself by being improperly assembled.
We recommend doing this test with the coax disconnected from the system to rule out the coax itself.
@@tahotoy what is the difference between clockwise and counterclockwise. Do you need a dvm to answer this question? You can almost guess the age of any know-it-all smart-ass if the only thing they know is digital and they haven't a clue about analog. Isn't there a class you should be teaching somewhere? Here ya go, the difference between shit and shinola? Spit or wind your watch? Oh yeah, the watch, its Analog. Mechanical in nature and it moves ( get this) Clockwise. Believe it or not. We all survived the world before there were more than 3 channels on TV.