I like to use my two ft897 and m2 loops for 6 and 2m.
Dave n3xud
3 generation memorial contest team
FM19tt
On Tuesday, May 21, 2013, Rhinosix wrote:
> Lets not over look the Moxon for 6 and 2 meters does not require a lot of
> rotor spinning.
> Jerry, w2jcn fn21wr.
>
>
>
>
>
>
>
> -----Original Message-----
> From: Steve Kavanagh <sjkavanagh1@yahoo.ca <javascript:;>>
> To: vhfcontesting <vhfcontesting@contesting.com <javascript:;>>
> Sent: Tue, May 21, 2013 8:08 am
> Subject: Re: [VHFcontesting] Total newbie questions about 2m and 70cm
> antennas and receive filters
>
>
> John:
>
> Here's a start on some of your questions.....I too started out as an HF
> contester but have been spending more time on VHF than HF for many years.
>
> (1) A dipole on 6m will get you some QSOs. It's what I use in my Rover
> setup.
> But as you can imagine, a beam is better !
>
> (2) There is an explanation of antenna spacing on the Directive Systems
> website:
>
> http://www.directivesystems.com/
>
> Look in the "APP notes" section. Generally speaking, smaller spacings
> often
> work, but you can be confident with the rules provided in that app note.
>
> (3) An omnidirectional antenna will probably only be of help if it has
> significant gain (i.e. several stacked halos). A Yagi usually has gain in
> the
> sidelobes about equal to a single halo. The InnovAntennas beam might be
> different - they go to a lot of effort to keep the sidelobes down.
>
> (4) One factor reducing your rotor spinning will be that most of your 70
> cm QSOs
> will probably be done by moving people from 2m, so at least you won't need
> to
> turn the rotor between those QSOs.
>
> (5) There's some very basic pointers (from an Ontario perspective) on the
> Contest Club Ontario website at
>
> http://www.va3cco.com/VHFContestPrimer.pdf
>
> And more on KC9BQA'a blog at
>
> http://kc9bqa.com/?p=5931
>
> (6) Most likely you won't really need the Inrad filters unless you have
> some
> very loud locals who like CW. If they are on SSB you will probably have
> more
> problems with their splatter which can not be fixed by IF filtering. The
> number
> of signals you hear at one time is normally much less than on HF and they
> are
> spread out more, with the possible exception of a good Sporadic E opening
> on 6m.
> The stock DSP CW filtering will likely work well enough, at least to start
> with.
>
> (7) Regarding the "is this enough power to have fun" question....it really
> depends on you. The QSO rate will certainly be much less than Sweepstakes
> or
> CQWW (and would be even if you had a kW, most of the time !) so if rate is
> your
> main turn-on it may not be very much fun. But to me, each QSO with a
> distant
> station on bands which most hams think are only good for local ragchews
> provides
> a bit of challenge which keeps me in the chair.
>
> 73,
> Steve VE3SMA
>
>
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