Could the BNC connectors in my cctv system be the issue?

[mikey2j 0]

Hey everyone. I have a 4 camera system that I recently installed on my property. I have two cameras that have a 60ft run, one has a 120ft run, and the last has a 200 ft. run. The issue is that the 120ft. and 200ft. flicker when the IR comes on at night. At first I thought it was the wires or camera. Now, I've noticed that the one similarity that they both have in common is they both have a BNC connector in the line. What are the chances that the connector that's in the middle of the wires to make the run longer is the issue?

[tomcctv 190]

Hey everyone. I have a 4 camera system that I recently installed on my property. I have two cameras that have a 60ft run, one has a 120ft run, and the last has a 200 ft. run. The issue is that the 120ft. and 200ft. flicker when the IR comes on at night. At first I thought it was the wires or camera. Now, I've noticed that the one similarity that they both have in common is they both have a BNC connector in the line. What are the chances that the connector that's in the middle of the wires to make the run longer is the issue?

 

 

Hi. It is always best to run a full cable without joins. But I think your problem is power related with you saying when IR comes on.

 

How are you running the power and what size power supply

[mikey2j 0]

So each camera has the red (power) and yellow (video) running off of it. The yellow goes directly from the camera to the back of the dvr. The red goes from the camera to a 4 way splitter that was included with the "all in one system". So it plugs into the surge protector and off that runs one wire, the one wire turns into 4 female ends and the male ends plug into that. The male ends are the ones that came from each of the cameras.

[tomcctv 190]

Are you using coax or lead kits that come with the kit.

 

It also sounds as if you are on 12v

 

What amp is your power supply and your cameras

[mikey2j 0]

I'm using a combination of both sets of cables (I believe).

The system came with 4 - 60ft wires. Two of my cameras are close to the DVR so I only needed that cable. Two of them are significantly further away so I needed to use the 60ft that came with the system and then an additional 150ft and an additional 60ft. I ordered the additional wires off amazon:

 

 

http://www.amazon.com/Amcrest-Pre-Made-Security-Connectors-SCABLEHD150B/dp/B00ZDXCOEO?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s00

 

Amcrest 150 Feet Pre-Made All-in-One Siamese BNC Video and Power CCTV Security Camera Cable with Two Female Connectors for 960H & HD-CVI Camera and DVR (SCABLEHD150B)

[tomcctv 190]

Hi. The lead kits are not the best of things to start with.

Even for short runs they don't last .

 

For yout long runs I would swap out for either RG59 with power or cat5 with baluns

[mikey2j 0]

Interesting. So with the situation I have now, is it a coincidence that the lines that are using a BNC connector are the ones that are having an issue? Isn't it weird that the issue only occurs at night?

[tomcctv 190]

Interesting. So with the situation I have now, is it a coincidence that the lines that are using a BNC connector are the ones that are having an issue? Isn't it weird that the issue only occurs at night?

 

 

Hi. No it's not a coincidence. The problem is with the lead kits .... First they are not for CCTV and the power conductors are two small to take the power o your camera that are at long distance.

 

It only occurs at night because your camera needs more power to operate the IR.

 

But at the end of the day the leads you have are not 75ohm

They are not long lasting.

 

And if you search the forum you will see that they don't work

[mikey2j 0]

That's really interesting! So the wires that are included are crap, essentially.

 

The wires that I bought on amazon are thicker than the ones that were provided. So, if I replace the wires that were included with 2 new sets from amazon, that could/should hopefully fix the problem?

 

I don't want to re-run all new wires because the one in the backyard was a real *** to run. The BNC connector is in the attic so they're both shielded from any weather conditions.

[tomcctv 190]

That's really interesting! So the wires that are included are crap, essentially.

 

The wires that I bought on amazon are thicker than the ones that were provided. So, if I replace the wires that were included with 2 new sets from amazon, that could/should hopefully fix the problem?

 

I don't want to re-run all new wires because the one in the backyard was a real *** to run. The BNC connector is in the attic so they're both shielded from any weather conditions.

 

 

They are both not for CCTV ..... There from China and used in kits just to get them working

 

Most people that have been on with same problem as you have changed the cable to either coax or cat5 and also seen a improvement in picture quality.

 

If you don't want to change the cables then try and put another power supply closer to your cameras that are the furthest away.

 

But you will have better benifit if you use the right cables for the job

[captainvideo 0]

If you want to prove to yourself that the trouble is in your wiring ,

Switch a camera from one of the short cable runs with the camera on the longest cable run and see what happens .(this is free)

if the properly working camera that WAS on the short run and is NOW on the long starts to have trouble, then you proved the trouble is in the wiring .

If the problem follows the camera to its new location , then it's the camera .

The cables that come with the all in one box systems are generally junk .

If you prove the problem is your cableing , I would find a local supply house and have them make you replacement cables with real rg59 siamese cable .

Or you can purchase a 500' spool of siamese cable for about $55 and the compression tool and stripper for about $30 and build your own

To save some time and headache , if/when you replace your wiring , attach the new cable to the old cable and use the old cable as a drag to pull the new cable into position !

Also replace the complete cable run . Splices are bad mmmk !

[captainvideo 0]

If you decide to make the cables yourself , b4 you insert the bnc compression ends onto the siamese cable , make sure that every single strand of the copper shielding is pulled back away from the core (stinger) .one single strand of the shielding touching the stinger will cause all kinds of trouble !

Good luck !