[TowerTalk] Replace Carolina Windom Line Isolator

[Joe Subich, W4TV]

On 2020-07-10 11:14 AM, Bert wrote:
 >
 > You need a 4:1 balun at the feed point

The Carolina Windom uses a *voltage balun* not a current balun.
Don't use a current balun or the feedline radiation (above the
"line isolator") and operation on 15 meters will be compromised.

73,

    ... Joe, W4TV


On 2020-07-10 11:14 AM, Bert wrote:
> Hi Pete,
> 
> You need a 4:1 balun at the feed point and a common-mode choke
> to replace what Radioworks call line isolator.
> 
> I have had a few Carolina Windoms and the performance and quality
> of the balun and line isolator are definitely not the best!! ;-)
> 
> Bert VE3NR
> 
> 
> 
> On 2020-07-10 10:14, N4ZR wrote:
>> I just blew up the line isolation choke on my Carolina Windom - not 
>> good timing right before the IARU test.  I have now blown both the 
>> balun and the line isolator on the antenna.  The antenna works really 
>> well on 40 and 80 (when it works)
>>
>> I'm guessing that just about any 1:1 unun of sufficient power rating 
>> will do - or are there special considerations I'm not aware of?  Any 
>> recommendations?
>>