Great video !! You got right to the subject, showed each step, made simple points that are easily understood so the viewer can actually remember what you demonstrated. Thanks, Bill.
A few years ago, my TV reception went dead. I'm on a subscribed satellite dish plan. I tried changing the dish, then the receiver, neither one worked. Friends said it must be the TV, which wasn't that old, but I wanted to upgrade to a new, larger flat screen anyway, so I spent $1200 on a nice new large flat screen TV. Still, no picture. Finally, I bought a new coaxial cable for $19.95 and voila....TV worked. It was likely the cable, all along.
Great video. I found a cable jack in our home which wasn't being used but didn't have a signal. There was a nest of cables and splitters l in the box outside and testing for continuity helped me rewire the system. Thanks!
It might be worth noting that if you are dealing with higher frequency system(such as Wi-Fi antenna feeding cable) then the test might not be good enough, you could have a cable that shows continuity but is extremely lossy when used, just something to be aware of.
many thanks! this allowed me to sort all my vid cables with my multimeter and save $20+ on another tool that i'd probably never use again. i used a wadded up piece of foil as the way to complete the circuit at the end of the cable (wall outlet).
I do this the same way but it is a little easier with something I made. I took a female, F-type connector, (the type of connector that screws in to a standard TV coax connector) I removed the barrel/cover from the rear of the F-type connector. I then soldered a short wire and clip to the center wire/pin/stinger on the rear side of the F-type connector. I now keep it with my test leads. When I need to test coax, I simply screw this thing on the opposite end of the coax cable line. It is easier than trying to get alligator tester clips on the coax connectors. I can also use it for an open circuit or closed/shorted test on any length of coax in the building.
Not sure why people are saying this is confusing, this is just what I needed, another truck I use is connect a 9v battery to one end using old bunny ear adapters and check voltage on the other end, I use this for cable identification withing the house
Why did you not check the outer in inner core seperate? Testing both at the same time does not tell you if the inner core for example is snapped as the current will go down the outer braid also.
The alligator clips connect the inner core to the outer shielding, essentially creating one long conductor. If the inner core were snapped, the current would not even make it to the alligator connector at the other end -- it would still read 0.L as it did with his first test.
Thats exactly what he checked ... The IMPEDANCE or the measure of resistance between the stinger and the outside shield / ground.... WHICH should be extremely HIGH ..
@@ACommenterOnUA-cam Impedance can't be checked directly with an Ohm meter due to its capacitive and inductive elements. Even the formulas for capacitive and inductive reactance aren't practical to use when working with cables but they are reduced to taking the log of the diameter of the outer braid shield divided by the diameter of the center conductor and multiplying by 138. If any of those physical characteristics changed due to damage the above test although quite useful wouldn't reveal it.
great video, and thanks for your service in the military, im assuming you from the US also, but i got one question, we use RG-6 coax cable for our internet and we're getting packet loss, do you by chance know what is or might be creating this problem?
those are the worst cable you can use at home, even though you don't see it they are super faulty and tend to introduce a lot of noise in. I use to replace those a lot while I worked as a comm tech with a great cable company. Don't waste your time doing that, just call your cable company and have them put the real good ones at no charge, that if you have them for service.
***** No it does not mean the wire should read 75 ohms. 75 ohm cable is designed for impedance matching for the system it is being used in. Its all about voltage and current. Hard to explain. Maybe this website can help www.bluejeanscable.com/articles/impedance.htm. Hope I answered your question.
The 75 Ohms is actually what is known as the characteristic impedance of the cable. The cable has capacitive reactance along with inductive reactance that has to be accounted for at signal higher frequencies. More importantly however maximum power transfer from a source to it's load only happens when the signal source, cable, connectors and load impedances match. This is why when you look at camera specs you'll see 75 Ohms listed. Since this impedance can't be measured directly the test here is good for continuity. However it won't let you know if the other physical characteristics of the cable are what they need to be for the considerations above. It can be argued that most techs don't need fancy cable testers but some of them actually give you the impedance of the cable.
This isn't a good test for a coax cable it only tests if the cable isnt (or almost) cut. Doesn't tell us anything about the frequency response or the attenuation. Even if it passes the continuity test it could still be a useless broken coax...
Good video, you broke down and explained the steps clearly. Good educator!
Great video !! You got right to the subject, showed each step, made simple points that are easily understood so the viewer can actually remember what you demonstrated. Thanks, Bill.
Thank you & Thx for watching.
I feel like John Wayne just taught me how to use a multimeter
Thx for watching.
that's hilarious..
🤣😂🤣😂
john wayne is that you?
WHO THE FUCK SAID THAT?!
Excellent video - I have had a problem with TV reception for the last 6 months, and with this video I was able to fix it.
Happy to help. Thx for watching.
Dude thanks alot, respect from Turkey🇹🇷
A few years ago, my TV reception went dead. I'm on a subscribed satellite dish plan. I tried changing the dish, then the receiver, neither one worked. Friends said it must be the TV, which wasn't that old, but I wanted to upgrade to a new, larger flat screen anyway, so I spent $1200 on a nice new large flat screen TV. Still, no picture. Finally, I bought a new coaxial cable for $19.95 and voila....TV worked. It was likely the cable, all along.
Great video. I found a cable jack in our home which wasn't being used but didn't have a signal. There was a nest of cables and splitters l in the box outside and testing for continuity helped me rewire the system. Thanks!
Great thx for watching.
THis was a fantastic video! Exactly what I needed.
This is EXACTLY what i needed to know! Thanks!
Glad to help and thx for watching.
Great job. Thanks Bill.
Thanks, this was a great lesson. well done.
Thank you for putting this video together
It might be worth noting that if you are dealing with higher frequency system(such as Wi-Fi antenna feeding cable) then the test might not be good enough, you could have a cable that shows continuity but is extremely lossy when used, just something to be aware of.
How do you test the coax if it is already in the wall and installed? what reading should you get on the terminal side?
excellent video that every beginner should know. thank you for posting
Thx for watching.
Awesome video!
Thanks, you helped me out!
Thank you and Thx for watching.
Thanks Bill! Very helpful.
Christie Williams THX
many thanks! this allowed me to sort all my vid cables with my multimeter and save $20+ on another tool that i'd probably never use again. i used a wadded up piece of foil as the way to complete the circuit at the end of the cable (wall outlet).
+twinklinglicin Glad to help and thanks for watching.
Great video - super helpful!
Thank you and thx for watching,
So straight forward. Thanks
thanks for share, now i know how to check my sat cable.
I like using the audible continuity setting below ohms.
Does this check the continuity of the outer shield along with the center wire. I have been told this needs to be good to use an antenna preamp.
I do this the same way but it is a little easier with something I made. I
took a female, F-type connector, (the type of connector that screws in to a
standard TV coax connector) I removed the barrel/cover from the rear of the
F-type connector. I then soldered a short wire and clip to the
center wire/pin/stinger on the rear side of the F-type connector. I now keep it
with my test leads. When I need to test coax, I simply screw this thing on the
opposite end of the coax cable line. It is easier than trying to get alligator
tester clips on the coax connectors. I can also use it for an open circuit or
closed/shorted test on any length of coax in the building.
]
@@edgarjohnson1112 [
Thanks for this video.
Thank you and thx for watching.
great video & thanks
Dennis M Thx.
Thanks pilgrim!
Thx for watching.
Wouldn't the teeth of the clips damage the surface of the pin causing signal issues since RF travels on the surface of the copper?
Not sure why people are saying this is confusing, this is just what I needed, another truck I use is connect a 9v battery to one end using old bunny ear adapters and check voltage on the other end, I use this for cable identification withing the house
+nick longstaffe Thx for watching.
I made a post above as to why but I will say this did prevent a needless cable pull recently.
thnx for the video
Good vid
Thank you.
Brilliant! Thanks!
Glad to help. Thx for watching.
what about dc loop resistance?
Good info
thanks. helps me trace out where the coax able is running in my house
That Fluke 73III is so old and abused, but still holds up well, we will see in 10-20 years if we will say the same for a keysight or a brymen...
So 2.3 is good, what would be a bad number?
thanks!👑
..thanks Sir..
Appreciate ya😊
Clever, thanks. Wondering if a splitter in the middle would affect results?
You would read the resistance in the splitter, would be the difference. Thx for watching.
Bill Eaglerunner thx for a informative video.
1 question that's bothering me, does a setallite cable coming from the dish contain electric
Thanks saved me 15 Bucks
Glad to help. Thx for watching.
Now we know what Ron White does when he's not doing stand-up!
what are you checking the resistance of the wire? or impedance?
Resistance. Thx for watching.
thank you!
What if it's in the wall of a new house you moved in to?
Good question
How can I test my Power Inserter and make sure it's sending the full 12 volts through the coax cable?
you can smell the burning
H0rs :2 😂😂😂😂
your voice is exactly same as Joey from family guy lol,nice
+chavitoracing I don't know about the voice thing. But thx for watching.
Don't understand what that will tell me in terms of application, please clarify, tthx
Why did you not check the outer in inner core seperate? Testing both at the same time does not tell you if the inner core for example is snapped as the current will go down the outer braid also.
The alligator clips connect the inner core to the outer shielding, essentially creating one long conductor. If the inner core were snapped, the current would not even make it to the alligator connector at the other end -- it would still read 0.L as it did with his first test.
great video co ax is similar to BNC
BNC is a connector name. Coax is the wire. Thx for watching.
If a Coaxial cable says it's 75 ohms , how to test it's really 75 ohms or not?
This guy sounds like John Wayne
Why do inside coax cables lose continuity?
Distance, open, shorts
Smart!
Why not just test the copper piece in the center? Why do you short it out to the outer threaded piece?
In case the coax ends are several feet away. It makes it easy. Thx for watching.
This particular test checks dc electrical connections, however that cable has something called impedance, it's helpful to check that too.
Thx for watching.
Thats exactly what he checked ... The IMPEDANCE or the measure of resistance between the stinger and the outside shield / ground.... WHICH should be extremely HIGH ..
@@ACommenterOnUA-cam Impedance can't be checked directly with an Ohm meter due to its capacitive and inductive elements.
Even the formulas for capacitive and inductive reactance aren't practical to use when working with cables but they are reduced to taking the log of the diameter of the outer braid shield divided by the diameter of the center conductor and multiplying by 138.
If any of those physical characteristics changed due to damage the above test although quite useful wouldn't reveal it.
impedance isn't always enough
I can’t get no signal in my house and there’s live voltage in my coaxial
Is that you John Wayne?
You don't sound like John Wayne. You sound like the "Motel 6 Guy"..."And we'll leave the light on for ya".........
Thx for watching.
Is that a multimeter i see there before me!
I kept waiting on him to say pilgrim
Where you from? The accent is great.
+Jared Carnes Retired military. Been all over the planet. Thanks for watching.
great video, and thanks for your service in the military, im assuming you from the US also, but i got one question, we use RG-6 coax cable for our internet and we're getting packet loss, do you by chance know what is or might be creating this problem?
those are the worst cable you can use at home, even though you don't see it they are super faulty and tend to introduce a lot of noise in. I use to replace those a lot while I worked as a comm tech with a great cable company. Don't waste your time doing that, just call your cable company and have them put the real good ones at no charge, that if you have them for service.
What happen to bill
Eww Jj, clean that fluke tester!
never use that kind of coax on cable, antenna maybe ok, but not cable system, ingress issues.
Big facts RG-59 is trash
don't they call this stuff 75 ohm cable? what's up with that? sounds very confusing if lower ohms is better..
***** No it does not mean the wire should read 75 ohms. 75 ohm cable is designed for impedance matching for the system it is being used in. Its all about voltage and current. Hard to explain. Maybe this website can help www.bluejeanscable.com/articles/impedance.htm. Hope I answered your question.
The 75 Ohms is actually what is known as the characteristic impedance of the cable.
The cable has capacitive reactance along with inductive reactance that has to be accounted for at signal higher frequencies.
More importantly however maximum power transfer from a source to it's load only happens when the signal source, cable, connectors and load impedances match. This is why when you look at camera specs you'll see 75 Ohms listed.
Since this impedance can't be measured directly the test here is good for continuity. However it won't let you know if the other physical characteristics of the cable are what they need to be for the considerations above.
It can be argued that most techs don't need fancy cable testers but some of them actually give you the impedance of the cable.
You kind of sound like John Wayne.
L
Jhjjfjkkhookpkgkkjjjtittitgogkgkhoykhkho
5r
This isn't a good test for a coax cable it only tests if the cable isnt (or almost) cut. Doesn't tell us anything about the frequency response or the attenuation. Even if it passes the continuity test it could still be a useless broken coax...
then what do you suggest?
Clear as muck, guess I'll leave it to the professionals after all! lol
i just run a currant down it .. like 12v then measure the output
Well that's exactly what the resistance measurement with the multimeter is doing!
I taught coax has 50 ohm without being shorted
Mark no
"center stinger". 🙄
its not good
remove chewing gum before explaining anything - HaHa
Kinda random but has anyone ever gotten the Amazon ad. ? They are a trillion dollar company and their music quality on there is actually garbage
Joker, if the cable is good quality, it should give you zero reading not 3 ohms.