Thhanks Niko for sharing your experience with me. I did not find a
reason why this takes place so I ran a separate 600 foot Beverage about
50 feet away and parallel to the two wire. The single wire works fine on
40 meters to the direction of the termination. A possible reason why the
two WD1-A does not work in the reverse direction on 40 meters, but works
well on 160 and 80 could be that it is to long for 40. This is just a
gut reaction as I have not come up with any reason.
I hope someone of the topband list group here has an answer.
Herb Schoenbohm, KV4FZ
On 5/22/2012 5:02 AM, Niko Safaric wrote:
>
> Dear Herb,
>
> On topband contesting Ihavefound your question about strange manner of
> your beverage
>
> »I have a 900 foot WD1-A two wire Beverage that runs east and west
> and
>
> works well and has a great FB ratio on 160 and 80 meters. It is
> fed with
>
> a KD9SV box and reflection transformer for WD1-A telephone wire. I
> have
>
> swept the antenna with an analyzer and the antenna is relatively flat
>
> beyond 10 Mhz. However I notice that when I try to RX with it on
> 7Mhz
>
> the reception (noise level) drops to the floor and signals are not
> there
>
> in the West direction (Reverse Direction) but OK in the East. The
> noise
>
> floor drops a good 30 db and the receiver appears dead on 40 to
> the west
>
> but works well to the East. I have an identical WD1-A two wire
> Beverage
>
> running NNE and SSW which works fine on 40 meters in both
> directions. I
>
> have absolutely no idea why this should be the case except that the
>
> cable feeding the Beverage box is RG-6U and could have some water
>
> encroachment which increase the losses at 7MHz greatly. Before I
> do a
>
> new cable run I plan to just swap the two RG-6 cables and see if the
>
> problem reverses now to the East rather than the West. I post
> this to
>
> ask if anyone has had a similar experience with a well functioning
>
> Beverage that appears completely dead on 7 Mhz and above.«
>
> I have exactly the same problemas you hadexceptmy beverageis not
> completedeadin one directionon40mand higherbands.F/B ratio
> isalsostrange.With switching directions W/EI cangetup
> to30dBF/B,butonly for signals coming from East.On another
> directionF/Bratio issignificantjust for some signals coming from W,
> but not for allof them.
>
> I havealreadyreplacedtransformers, made a good ground with radials on
> both side, replacecoax RG59 with RG213...butnodifference.
>
> I am interested, how did you solve your problem?
>
> Best regards,
> Niko, S53a, 9J3a
>
>
>
>
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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