[TowerTalk] CMC-230-5K
jimlux
jimlux at earthlink.net
Thu Apr 21 16:00:51 EDT 2016
On 4/21/16 12:47 PM, Jim Brown wrote:
> Good advice on all counts.
>
> Mobile installations are particularly problematic, because the
> body/chassis is used as a counterpoise for our antennas, bonding of body
> and chassis is often flaky (or non-existent, thanks to paint) and the
> routing and design of interconnecting cables for vehicle systems pay
> little of any attention to EMC.
>
If I wasn't lazy, and didn't have a box full of 2.4" 31 mix cores in the
garage, I'd order some smaller sizes and other shapes for this sort of
thing. Multiple turns is good, but if the wire is <0.1" in diameter, you
don't really need a 2" hole to get a half dozen turns through it. You
might need it to clear the big connector.. but that's what split cores
in a clamp on housing are for...
I am lazy though, so I'll keep having 3" blobs of wire and core for a
long time.
> 73, Jim K9YC
>
> On Thu,4/21/2016 12:39 PM, jimlux wrote:
>> I choke everything. If it's a wire, and it's near the antenna, it's a
>> potential radiator.
>>
>> In fact, on my mobile installation, I had worse RFI/EMC problems with
>> the 12V control wires to the tuner and the remote head cable for the
>> radio than with the coax.
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
More information about the TowerTalk
mailing list