[NLRS] 1296 omnis

Thu, 2 Jan 2003 17:18:58 -0600

Hi Gang,

The question was really specific.  It didn't ask your opinion of omnis.  Sometime
the op doesn't have any choice because of constraints.  I know Matt's
situation.  This is a fellow that regularly wins the category he enters.
He knows the value of gain antennas but when you can't fit
a 20 foot boom in the space you have then what good is it.

Clare   K0NY

On Thursday 02 January 2003 11:50 am, you wrote:
> Hi John,
> You're correct, and the references are good ones !
>
> However, I don't think it matters WHAT omni-antenna you use if no one can
> hear you!  On 2m, you make up for lack of antenna with power, but that's
> real hard (and expensive !) to do on 1296.  Even a WA5VJB home-built (10 el
> on a 30" boom) will produce 12 or so dBi gain.  That takes your 10 watt IC
> brick to 100-160 w ERIP.  The biggest advantage on antenna gain, though, is
> that it ALSO works on receive.
>
> You CANNOT work as much on an omni- as you can with even a small gain
> antenna!  This doeasn't seem to be a popular answer, but its the simple
> truth.
>
> 73 Donn
> WA2VOI/0
>
> At 09:36 02-01-03 -0600, John Kalenowsky, K9JK wrote:
> >While the discussion has evolved to pleas for use of directive (read
> > 'GAIN') antennas by rovers, I've only seen a few answers to the original
> > question, regarding omni antennas for 1296.
> >
> >I remember the Double Diamond/Iowa Bug Slicer antennas from NA0IA's
> >presentation on "The Art of the Rover" at the 2002 CSVHFS Conference.  I
> >haven't used them myself and I am not aware of anyone selling them
> >commerically but they look fairly easy to build.  There is a pdf with
> >dimension information at the Cedar Rapids Microwave Society's Web site
> >http://www.rf.org/crms/projects/DoubleDiamondAntenna.pdf and pictures at
> >http://www.rf.org/farmers/n0cih/ (look especially at pics 4 and 5 to see
> > the slotted screw method for connecting the element to the connector
> > flange).
> >
> >>From the Antenna Range results at 2002 CSVHFS: 5.1 & 6.3 dBi Gain at 902
> >> and
> >
> >8.3 & 8.5 dBi Gain at 1296.  K0DAS had them for both bands, N0CIH had one
> >for 902 and NA0IA had one for 1296.
> >
> >73, JK (K9, that is)
> >
> >----- Original Message -----
>
> From: <[email protected]>
>
> >To: <[email protected]>
> >Sent: Tuesday, December 31, 2002 16:50
> >Subject: [NLRS] 1296 omnis
> >
> >> Thinking about the possibility of portable operation some time
> >> (perhaps in January) with omni antennas.  Anyone have luck with 1296
> >> halos or similar?  I have omni's for 50,144,222,432 but nothing
> >> beyond that.  Who is selling omni's for 1296 (or 902) these days?
> >> Any thoughts helpful -
> >> 73, and good DX for '03
> >> Matt
> >> KF0Q
> >> EN44ea
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