Re: Do I need an attenuator for MUX-B problem?


"Colin Jones" <seajays@xxxxxxxxxxx> wrote in message
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On Nov 28, 10:47 am, "Bill Wright" <insertmybusinessn...@xxxxxxx>
wrote:
"Andy Wade" <spambuc...@xxxxxxxxxxxxxxxxxxx> wrote in message

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Bill Wright wrote:

"Marky P" <bromham_hospital_b...@xxxxxxxxxxx> wrote in message
news:l4blk39aff4bigc1c1lepe000evhglfijc@xxxxxxxxxx
Of course, Log Periodics don't need baluns.

Could anyone tell us why?

No - because log-periodics *do* need baluns, and the method of feeding
where the coax passes through one of the boom/transmission-line members
provides an inherent balun structure.

But the Antiference TS21 and TS15 had the cable leave the aerial at the
'sharp' end, where it was connected.

Bill


"Don't be misled by the appearance of the Antiference TS21: the
coaxial feeder emerges from the back end of the aerial but runs along
inside the boom to the connection point at the front."

http://www.wrightsaerials.tv/Resources/Eliminating%20Ghosts.pdf ;-)

Oh of course it does. I'm tired.

Bill


.

Relevant Pages

  • Re: Do I need an attenuator for MUX-B problem?
    ... where the coax passes through one of the boom/transmission-line members ... provides an inherent balun structure. ... But the Antiference TS21 and TS15 had the cable leave the aerial at the ...
    (uk.tech.digital-tv)
  • Re: Do I need an attenuator for MUX-B problem?
    ... provides an inherent balun structure. ... But the Antiference TS21 and TS15 had the cable leave the aerial at the ... inside the boom to the connection point at the front." ...
    (uk.tech.digital-tv)