[time-nuts] Joining Antenna Cables (Again)
Bruce Griffiths
bruce.griffiths at xtra.co.nz
Tue Mar 25 01:01:08 EDT 2008
Matthew Smith wrote:
> Hi Folks
>
> I know that we talked about extending antenna cables not that long ago,
> but I don't think that we resolved *how* the cables should be joined
> other than that the type of soldered splice I was proposing was not a
> good thing.
>
> I've decided to run the indoor sections on RG6, since that's what I've
> got. I also have a couple of splitters with power pass-through that are
> rated up to 1.8GHz - these have F connectors on them.
>
> As there don't appear to be any MCX to F or BNC or SMB to F or BNC
> adapters available, I'm still puzzling how to hook this up.
>
> All I can think of is to have either:
>
> 1) A metal box with a bulkhead SMB connector on one end and a bulkhead
> BNC or F connnector on the other or:
>
> 2) A metal box containing a PCB with the two appropriate connectors at
> either end of the PCB, a single trace linking the two centres and the
> rest of the board being ground.
>
> I know that I'm doing a mix'n'match of impedances, but comments from the
> previous thread indicated to me that this shouldn't cause any real
> problems, even if it is a 'dirty hack'.
>
> Cheers
>
> M
>
>
Matt
Using a small length of low loss coax to connect between the 2
connectors is virtually essential.
This will have lower loss than most PCB substrates.
The connectors in question can in turn be mounted on a plate or box wall.
Bruce
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