Coax Question
 

Hello,

New at this.
Have never tried this before, and would appreciate your opinion on.

Have a coax cable with an mcx connector on one end, and an old small
indoor antenna on the other.

Would like to cut off and discard the antenna, but keep the mcx and
cable to it.

mcx on pigtails seem really hard to find at a reasonable cost.

Then, I would like to solder some sort of bnc to the now bare end;
possibly a solderable bulkhead bnc or...

SW receiving application only; No transmitting.

If the bnc bulkhead connector is left, more or less loose, rather than
being mounted in some metallic enclosure, would I ever notice the
difference for receiving 30 MHz ?

Suggestions for other bnc types that are solderable, rather than the
bulkhead style, that would be neater ?

Thanks,
Bob

Coax Question
 

On 11/10/2012 6:49 PM, Bob wrote:
Hello,

New at this.
Have never tried this before, and would appreciate your opinion on.

Have a coax cable with an mcx connector on one end, and an old small
indoor antenna on the other.

Would like to cut off and discard the antenna, but keep the mcx and
cable to it.

mcx on pigtails seem really hard to find at a reasonable cost.

Then, I would like to solder some sort of bnc to the now bare end;
possibly a solderable bulkhead bnc or...

SW receiving application only; No transmitting.

If the bnc bulkhead connector is left, more or less loose, rather
than being mounted in some metallic enclosure, would I ever notice
the difference for receiving 30 MHz ?

Suggestions for other bnc types that are solderable, rather than the
bulkhead style, that would be neater ?

Thanks,
Bob



I am not sure from your description, but it sounds like the
solderable connector you're describing has a small section -- less
than an inch -- of the center conductor exposed.

Although this violates best practices and makes that section of the
cable unshielded, I doubt that it will make any audible difference
below 30 MHz.


With all good wishes,


Kevin, WB4AIO.
--
http://nationalvanguard.org/
http://kevinalfredstrom.com/

Coax Question
 

On Sat, 10 Nov 2012, Bob wrote:

Hello,

New at this.
Have never tried this before, and would appreciate your opinion on.

Have a coax cable with an mcx connector on one end, and an old small indoor
antenna on the other.

Would like to cut off and discard the antenna, but keep the mcx and cable to
it.

mcx on pigtails seem really hard to find at a reasonable cost.

Then, I would like to solder some sort of bnc to the now bare end; possibly a
solderable bulkhead bnc or...

SW receiving application only; No transmitting.

If the bnc bulkhead connector is left, more or less loose, rather than being
mounted in some metallic enclosure, would I ever notice the difference for
receiving 30 MHz ?

Suggestions for other bnc types that are solderable, rather than the bulkhead
style, that would be neater ?

I can almost picture some sort of hood in the old ARRL Handbook for
situations like this. A piece of metal that mounts on the back of the
female BNC connector to shield that area. Maybe I'm imagining it, or it
was for some other connector.

Get a small box and put the connector on it, though the hole where you
bring the coax in will not be completely shielded.

Put a male connector on the end, those are meant to fit the end of coax.
Then if you really needed a female there, get a female to female BNC
adapter to go between the two parts.

For receiving the really worst part will really be a place to pick up
noise if it's not shielded well. That may be an issue depending on where
the end is. Near a window, there'll be less pickup than if the not quite
shielded end is near noisy equipment.

Michael

Coax Question
 

Yes, it will work.