50ohm in line connector.

[Graham_Wright]

I had the misfortune to cause an internal failure in our TV aerial cable.
Finding the fault by working along the length, I thought I'll cut it and rejoin using an appropriate inline connector.

Pardon our interruption...

£52.30 please.

WHAT!

 

[jdc]

Are you sure it's 50 Ohms? Television aerial's are usually 75 Ohms, RG6 and RG59 are the common ones I think.

 

[Graham_Wright]

Are you sure it's 50 Ohms? Television aerial's are usually 75 Ohms, RG6 and RG59 are the common ones I think.

It's a "flying saucer" aerial that came with cable integrated.
So - yes.

 

[greeny]

At that price I'd solder the core, insulate, solder the screen and seal with self amalgamating tape. After all, we're on the PBO forum not on millionaire's row. Even choc bloc would work at a pinch. Woops I used that word chocbloc. Wait for incoming.

 

[trbt]

It's a "flying saucer" aerial that came with cable integrated.
So - yes.

How would the fact that the cable is "integrated", make it 50 ohms? TV's antenna input impedance is 75 ohms, producing a mismatched antenna does not sound very smart.
Also pretty sure you don't need connectors rated at 6GHz.

 

[Daverw]

If it’s only a receive atrial, no issue with just soldering core, put a bit of spare center insulation over, cover with tin foil, ensure screen is connected to this and then heat shrink. transmitting a different story although I’ve done this on low power stuff but swr can be an issue.

 

[Boathook]

At that price I'd solder the core, insulate, solder the screen and seal with self amalgamating tape. After all, we're on the PBO forum not on millionaire's row. Even choc bloc would work at a pinch. Woops I used that word chocbloc. Wait for incoming.

I would try ordinary TV aerial connector. Normally for receiving nearly any type of connection would work.

Chocblocks are OK if the correct type .....

 

[Graham_Wright]

How would the fact that the cable is "integrated", make it 50 ohms? TV's antenna input impedance is 75 ohms, producing a mismatched antenna does not sound very smart.
Also pretty sure you don't need connectors rated at 6GHz.

Integrated means the cable emerges from the antenna with no means to access the inside.
I was wrong about the impedance - it is 75 ohms.
I would like to mount the antenna on the mast which is a fair stretch of cable needing a connect somewhere.

 

[Alex_Blackwood]

Have a look here:-
https://uk.rs-online.com/web/c/?searchTerm=50 ohm bnc cable connectors
Belay the above in light of #8

 

[st599]

I had the misfortune to cause an internal failure in our TV aerial cable.
Finding the fault by working along the length, I thought I'll cut it and rejoin using an appropriate inline connector.

Pardon our interruption...

£52.30 please.

WHAT!

Looks about right for something working at 6GHz, but you need a cheaper connector working to about 700MHz.

It will be 75 ohms (the lowest loss impedance for air core co-ax). An impedance mismatch causes power to be reflected, so whilst it will work, using a chock block will cause some power to be reflected and decrease the range it will work at.