[TowerTalk] CMC-230-5K

[Bob K6UJ]

Chuck,
I emailed MyAntennas this morning and they got right back to me.
You are right, there are two stacks of two.

Bob
K6UJ



On 4/19/16 8:58 AM, Chuck Dietz wrote:
> I read: "Two cascaded chokes (2) on four (4) large 2.4″ (61mm) Ferrite
> cores" at:  http://myantennas.com/wp/product/cmc-230-5k/
> I don't see but two either, however, I assume there are two stacks of two...
>
> Chuck W5PR
>
> On Tue, Apr 19, 2016 at 9:54 AM, Bob K6UJ <k6uj at pacbell.net> wrote:
>
>> Jim,
>>
>> Very well built.  I am curious about one thing.  Their write up states
>> that this unit
>> uses 4  cascaded ferrite cores.  In the picture I can only see 2.
>> Thanks for sharing !
>>
>>
>> Bob
>> K6UJ
>>
>>
>>
>>
>> On 4/19/16 3:30 AM, Jim Thomson wrote:
>>
>>> I just received a pair of  CMC-230-5K  common mode chokes...from
>>> MyAntennas.com to experiment with.
>>> They are configured as a  line isolator, with  silver-teflon  SO-239s  on
>>> each side.  They can also be configured as
>>> a balun, with a pair of standoffs on the balanced ant side if you like.
>>>   Extremely well designed and built, better
>>> than I expected.   He does a beautiful job of terminating the coax.  I
>>> will try some different placement configurations,
>>> including both in series, also in different locations.
>>> 2-30 mhz rated, 7k - 12.2k Z...with RS slightly less, 5.4K – 11.3k   5 kw
>>> icas.
>>> If this doesn’t do it, I give up, esp with 2 of em in series.   Rated for
>>> 40db of common mode attenuation...per  unit.
>>> Should be 80db  for a pair of em in series.   They are heavier than I
>>> thought, and UV proof.
>>> This will be an interesting experiment.  If I can dump some noise on RX,
>>> I will be happy.   Stay tuned.
>>> http://myantennas.com/wp/product/cmc-230-5k/
>>>
>>> Jim  VE7RF
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>>>
>>>
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