Hope this will be of some interest for those using twisted pair instead of
coax.
The company I work for is manufacuring all kinds of 75 Ohm / UTP balun adapters
and surge protection units.
The one I am using for my phased biderectional flags is "УПВ-МВ"
http://www.elsy.com.ua/ru/pasivnie-priemnikiperedatchiki-kanal-c-1_15_66_61.html
Sorry the site is in Russian only.
The surge protection units -
http://www.elsy.com.ua/ru/videonablyudenie-zashchita-ot-visokovoltnih-navodok-c-1_27.html
If someone is intersted, please contact me directly.
Среда, 18 сентября 2013, 15:33 -07:00 от "Bruce" <k1fz@myfairpoint.net>:
>Yes Jim, and that is what I do, sell transformers. Just trying to locate
>some cable and let others know adaptors are available.
>
>Thanks, it's always good to find maybe a better adaptor source and more
>resaonable price.
>
>73
>Bruce-K1FZ
>
>
>
>----- Original Message -----
>From: "Jim Brown" < jim@audiosystemsgroup.com >
>To: < topband@contesting.com >
>Sent: Wednesday, September 18, 2013 12:03 PM
>Subject: Re: Topband: 75 ohm coax to twisted pair Adaptors
>
>
>> On 9/18/2013 2:47 PM, Bruce wrote:
>>> Found these for a friend who is thinking about going to twisted pair.
>>
>> To connect what to what? Why?
>>
>> If it's for RX and the ends are unbalanced (that is, one side grounded),
>> he'll need some form of transformer or other circuitry to make a balanced
>> connection.
>>
>> There are female F to male PL259 adapters (most I've seen are el-cheapo),
>> and I've seen female F to RCA, and female F to 2-ckt (T-S) 1/8-in male. I
>> think Fry's stocks them.
>>
>> 73, Jim K9YC
>>
>>
>>
>>
>> _________________
>> Topband Reflector
>>
>
>_________________
>Topband Reflector
--
73, Victor Goncharsky US5WE/K1WE (UW5W in VHF contests)
UARL Technical Committee
DXCC card checker in Ukraine(160 meters).
_________________
Topband Reflector
|