dwarwick
New member
anybody ever successfully assembled these, or is the problem senility?
advice on either please
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advice on either please
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bnc connectors
- Thread starter dwarwick
- Start date
studgies
Active member
erm, made hundreds of the bloody things but best done with a decent crimping tool and nimble fingers!
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dwarwick
New member
this ones the soldered jobby
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dwarwick
New member
this one is the soldered jobby - erm
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john_morris_uk
Well-known member
Hi,
Answer to your question is yes - many times, but perhaps that's not relevant to you unless you are local to us down in the West Country.
You need to be reasonably good at soldering and fussy about neatness of the connection and how much you strip off the insulation etc. There are several sorts - or should that be styles - all along the same lines including the crimp ones, but they are not really that difficult if you are careful.
What do you need to know?
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Answer to your question is yes - many times, but perhaps that's not relevant to you unless you are local to us down in the West Country.
You need to be reasonably good at soldering and fussy about neatness of the connection and how much you strip off the insulation etc. There are several sorts - or should that be styles - all along the same lines including the crimp ones, but they are not really that difficult if you are careful.
What do you need to know?
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TrueBlue
Well-known member
I haven't got the patience.... so switched to the solderless variety.
The centre pin has a spring to retain the solid conductor and the connector tas a thread into which you screw the cablewith the shield wrapped round - if you see what I mean. No solder no mess..
I get mine from CPC:- <A target="_blank" HREF=http://custom1.farnell.com/cpc/>here</A>
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Stop what you're doing and wait my signal
The centre pin has a spring to retain the solid conductor and the connector tas a thread into which you screw the cablewith the shield wrapped round - if you see what I mean. No solder no mess..
I get mine from CPC:- <A target="_blank" HREF=http://custom1.farnell.com/cpc/>here</A>
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capt_courageous
New member
Just buy them made up from Maplins , Radio Spares etc. Easier and cheaper in the long run.
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sailorman
Well-known member
i had 2 differing size cables & one wouldnt fit the BNC connector so used a simple block connector, that was 5 years ago & no probs to date. Except i now get incessant "RADIO CHECK" requests every week-end
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david42
New member
I bought one recently after I dicovered that the old one on Take Five had come apart. After I'd spent 15 minutes sitting on the steps outside the chandlers trying to work out what all the bits did I took it back and went to the local marine electronics place who sold me a different type of connector, two plugs and a connecting piece, dead easy to assemble but I still needed to solder the inner cores. I just asked for a VHF connector and they handed me the bits, cost the same as the BNC from the chandlers, they said that they wouldn't recomend BNC for VHF connections.
David
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David
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William_H
Well-known member
Senility is the greatest excuse ever.....you can excuse any behaviour.
BNC connectors solder type. First the pin must be new or have the old solder drilled out you can't hope to melt the solder and feed in the stranded wire. Use about .8mm drill bit from hobbyist or electronics shop. The trick is to cut the insulation braid and inner insulation to the right length.
The outer insulation is trimmed back about 7 mm. Slide the locking nut rubber gasket washer and collet over the cable end.(not all connector types use all these parts Fan back the braid over the collet and trim with scissors to reach the outer circumference of the collett but not overlap.The inner wire should be bared the length of the hole in the pin.(4mm) Solder the pin on using minimum heat. If the inner insulation gets so hot as to melt and distort start afgain or trim carefully with a sharp blade as it has to fit into a hole in the connector. There should be about 2mm of inner insulation protruding from the braid and collett. Push the cable and collett etc. into the body. The tip of the pin should be just level with the inside of the body. ie you can just touch with a finger nail. There can be a problem that if the cable gets stretched or the inner shrinks it can take the pin back into the cable hence no connection so this check for pin placement is worth doing anytime you have doubts. Good luck Will
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BNC connectors solder type. First the pin must be new or have the old solder drilled out you can't hope to melt the solder and feed in the stranded wire. Use about .8mm drill bit from hobbyist or electronics shop. The trick is to cut the insulation braid and inner insulation to the right length.
The outer insulation is trimmed back about 7 mm. Slide the locking nut rubber gasket washer and collet over the cable end.(not all connector types use all these parts Fan back the braid over the collet and trim with scissors to reach the outer circumference of the collett but not overlap.The inner wire should be bared the length of the hole in the pin.(4mm) Solder the pin on using minimum heat. If the inner insulation gets so hot as to melt and distort start afgain or trim carefully with a sharp blade as it has to fit into a hole in the connector. There should be about 2mm of inner insulation protruding from the braid and collett. Push the cable and collett etc. into the body. The tip of the pin should be just level with the inside of the body. ie you can just touch with a finger nail. There can be a problem that if the cable gets stretched or the inner shrinks it can take the pin back into the cable hence no connection so this check for pin placement is worth doing anytime you have doubts. Good luck Will
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William_H
Well-known member
Have a look at www.dse.com.au under support and data for much usefull stuff on coax etc. regards will
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Dave_Knowles
New member
To add to your headache you need to make sure that you get the right ones. The video BNC plugs look the same but are 75 ohm compared to 50 ohm which are the ones that you need.
<hr width=100% size=1>Take care
Dave
<A target="_blank" HREF=http://www.theboatjumble.co.uk>Visit The Boat Jumble - Online</A>
<hr width=100% size=1>Take care
Dave
<A target="_blank" HREF=http://www.theboatjumble.co.uk>Visit The Boat Jumble - Online</A>
dwarwick
New member
will
ta for comprehensive guide.
On this BNC there is an additional back insulator which prevents pin being drawn back into cable. This means the pin has to be soldered onto the conductor wire by applying soldeless soldering iron to outside of pin - a bit hit and miss especially for this application.
In this case - if all else fails disregard the instructions
thanks for all help
d
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ta for comprehensive guide.
On this BNC there is an additional back insulator which prevents pin being drawn back into cable. This means the pin has to be soldered onto the conductor wire by applying soldeless soldering iron to outside of pin - a bit hit and miss especially for this application.
In this case - if all else fails disregard the instructions
thanks for all help
d
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