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UT1HZM > TECH 24.07.08 16:14l 35 Lines 810 Bytes #999 (0) @ WW
BID : 21311_UT1HZM
Read: GUEST OE7FMI
Subj: Re:Coax Feeder Tests
Path: DB0FHN<DB0MRW<DB0ERF<DK0MNL<UT1HZM
Sent: 080724/1300Z @:UT1HZM.KREM.POL.UKR.EU #:21311 [Kremenchug] FBB7.00i
From: UT1HZM@UT1HZM.KREM.POL.UKR.EU
To : TECH@WW
Hello John and all
>
>From: G8MNY@GB7CIP.#32.GBR.EU
>To : TECH@WW
>
>
>Tx End Aerial End
> Meter > -|__===========================__|- 50ê Load
> Plug Coax Plug
>
Very good test that i'm do every time with new coax for new vhf/uhf antennas.
Had measured that even with good 50 Ohm SWR meter and good 50 Ohm dummy load
SWR not on all freq is 1:1 with unknow type and length of 50 Ohm coax.
There is some freq's where SWR can be more and less.
Think its because chinesse coax (most here is from that country)
not exactly 50 Ohm. So i'm do cut coax to get 1:1 SWR on used freq.
(to tune it for N * 1/2 wave Z follower)
73, Sergej
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* Packet forever :-)
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