[VHFcontesting] Log Periodic ?

[Zack Widup]

The antenna testing range is done every year at Central States VHF
Conference. Usually on Friday morning of the conference out in a hotel
parking lot. May be changed to Saturday if it rains. Kent WA5VJB does the
testing. Any antennas 6m thru 24 (and maybe 47) GHz are welcome. :-)

73, Zack W9SZ

On Thu, Sep 14, 2017 at 12:06 PM, Bill Olson <callbill at hotmail.com> wrote:

> Good idea! Sort of hard to believe that hasn't been done before.. anyone
> have any data??
>
>
> bill, K1DY
>
>
> ------------------------------
> *From:* Zack Widup <w9sz.zack at gmail.com>
> *Sent:* Thursday, September 14, 2017 4:37 PM
> *To:* Bill Olson; VHF Contesting Reflector
>
> *Subject:* Re: [VHFcontesting] Log Periodic ?
>
> Maybe someone can bring one to a Central States conference or another
> conference where antenna testing is done? Kent WA5VJB has always been
> accurate and impartial in his measurements.
>
> 73, Zack W9SZ
>
>
> On Thu, Sep 14, 2017 at 11:13 AM, Bill Olson <callbill at hotmail.com> wrote:
> > Hi all, Create claims the gain of the 50-1300MHz LPDA is 10-12dBi
> (~8-10dBd). I don't see how those numbers could possibly be accurate given
> the element taper and the boom length etc.. Reports of performance compared
> to single band Yagis seem to bear that out. I'd guess the realistic gain is
> more like 3-4dB over a dipole. That's like a 2 or 3 element single band
> Yagi.. Now admittedly you'd need 2,3,4, 5 or 6 single band Yagis to do the
> job since the Log Periodic does cover 6 ham bands.. If you can tolerate
> mediocre performance (probably really poor performance on 903/1296) but
> need the simplicity of a single antenna I guess this would be an option,
> but I sure wouldn't go that way,. Heck, it looks like the thing costs $519
> too, (from DX Engineering at any rate)!! Holy smokes! The way I see it,
> you're paying for having broad band performance which you aren't using.. It
> works as well at 88MHz as it does at 144! Great for a TV antenna but who
> needs that on the ham bands?!
> >
> > I GET the simplicity factor and agree that ANY antenna is better than no
> antenna, and I KNOW people are using these antennas and are happy with
> them, just saying my piece I guess..
> >
> >
> > bill, K1DY in Maine
> >
>