Peter,
Thats good to hear. Thanks
Bob
K6UJ
> On Apr 30, 2020, at 1:59 AM, <dj7ww@t-online.de> <dj7ww@t-online.de> wrote:
>
> There is no reason a yagi match would loose 0.5dB.
> From 28 ohms to 50 the match will loose not more then 0.01dB.
> By lengthening the boom for OWA the gain can be kept the same as with the
> conventional yagi.
>
> 73
> Peter
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
> Robert Harmon
> Sent: Donnerstag, 30. April 2020 05:37
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] 40m 4el KLM - replacing linear loading with coils
>
> How much loss is there in a conventional Yagi match ? From what I
> understand the OWA has about a .50 dB loss in forward gain compared
> to a conventional Yagi. If a conventional yagi has about the same .50 dB
> loss in the match system then they would both have about the
> same forward gain. Then............. the OWA is winner with its wideband
> SWR curve.
> Sounds like a " If it seems too good to be true" thing :-)
>
> Bob
> K6UJ
>
>> On Apr 29, 2020, at 10:43 AM, john@kk9a.com wrote:
>>
>>
>> That seems a little high for OWA gain reduction, especially with modern
> designs. I believe the theory is that a conventional a Yagi has losses from
> the match and a OWA of course has no match losses. Most of the high scoring
> contest stations are using OWA Yagis.
>>
>> John KK9A
>>
>>
>> Brian K6STI wrote:
>>
>> If you think the 0.5 to 1 dB a conventional OWA costs in forward gain is
>> inconsequential, check this out:
>>
>> http://ham-radio.com/k6sti/pileup.htm
>>
>> The analysis isn't definitive. But the next time it takes forever to
>> bust a pileup with your OWA, you may not be able to get the probability
>> curves out of your head.
>>
>> _______________________________________________
>>
>>
>>
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