[K3PZN-List] FD Antenna Location Thoughts
Steve S
ny3a at hotmail.com
Fri Jun 19 13:47:34 EDT 2015
As plans stand right now I thought there were going to be two cw stations. 40/15 shared ssb and cw that was going to be in an RV, the cw portion being done by N3SB. (tell me if I'm wrong on that?) The other was myself on 80/20. I don't see a problem with those two stations being next to each other and actually would be a plus.
As far as sharing 20/80 antennas, for ssb and cw, not so hot on that because was planning to go all day and most of the night on cw, with some wandering around. I thought John and William were going to be setting up 80 ssb? I understand 20ssb with Ray is still not certain. If Ray can't go, is there anyone else interested in setting up 20ssb?
If there are two cw stations, during the day I'd be on 20 cw full time and guessing the other cw station will be on 15 a good part of the time. This means the digital would be limited to mostly 40m during the day and 15m at night. With all the space at Gamber it seems a shame not to take advantage of it so the digital station could go where they want albeit there probably still will be some cosite problems between cw/digital.
Is there a limitation in buildings that is different from past years that precludes us from spreading out?
73;SteveNY3A
> Date: Fri, 19 Jun 2015 17:20:17 +0000
> To: k3pzn-list at mailman.qth.net
> Subject: Re: [K3PZN-List] FD Antenna Location Thoughts
> From: k3pzn-list at mailman.qth.net
>
> Based upon Mike's locational comments, I am thinking our best strategy is to locate the one CW and one digital station in the same vicinity -- and to force ourselves to keep these on separate bands. We can legislate this by using the club's dunestar filters as tokens or some friendly method of alerting to band changes.
>
> I am currently thinking we might be 5A. If we were 6A with two CW, that would mean trading 20/40/80m at night which also works.
>
> Next, I suggest we try to cluster the 3 SSB stations relatively close together - as far from digital/CW antennas as possible. I realize 2 stations may be in RV's -- still we should aim to group them -- as they will all be on different bands from each other. Yes I can still hear the crackle of each others transmissions that we wish to minimize -- 20 and 15m are the most likely bands for annoying transmitted noise.
>
> If Ray/Kerri are not participating -- an interesting 4A concept is to move 80/20m phone close to CW, and to share antennas.
>
> 73 Curt
>
>
> On Wednesday, June 17, 2015 1:48 PM, Curt Milton via K3PZN-List <k3pzn-list at mailman.qth.net> wrote:
>
>
> Yes at that meeting CW was extinct in our plan. (Yes any rig can do CW, but having the stuff present for both PC and human to send it is generally desired - especially the PC).
>
> Many inter-twined topics here.
>
> 6A maybe. I was assuming 3 SSB, 1 digital and 2 CW at the max for our effort. (VHF can be uncounted in the A class).
>
> Operators? Don't know how many we have willing to do CW. Perhaps this could bump us down to 5A.
>
> QRM. I have visions of 3 transmitters on 20m -- likely for 6A, not necessary for 4A as we could then easily manage 1 rig per band.
>
> More CW. I was having fun on 50 MHz with CW last night. I would be glad to try this at FD.
>
> Let's work on a desirable antenna alignment for 5 or 6A. Sounds like inverted V's will be popular. I can't remember what antenna Mike runs on digital HF?
>
> Do we have any who have not done FD with us before that wish to participate, or any who will re-emerge?
>
> 73 Curt
>
>
> On Wednesday, June 17, 2015 11:17 AM, Michael Fisher <n3vop at hotmail.com> wrote:
>
>
> Curt,
> At the last meeting we talked about a 4A and 5A with Ray. #1 - 6M - N3VOP#2 - Digital - N3VOP#3 - 10/80 - William#4 - 40 - WO3L (I think) #5 - 20 - Ray
> If Ray does not make it then someone else can pickup on 20 and run with it.
> In keeping with your comments on setting up the stations in a North/South line I looked at the site on Googlemaps and I have the following suggestion. I could not copy from Googlemaps so I will do my best to explain each building to use.
> The 3 small buildings on the south side (rt 32 side) I will take the one the most west.
> Next, just beyond (north of) the 2 large buildings in the center there in a small building by itself that would be #2 for William or Andy.
> Then, use the stage for the next station and have the antennas north of it in the grass along the fence to be used for CW.
> If Pat does make it to FD and wants to try his satellite station again he could take the same building as last year and have open space for the antennas.
> At the meeting we talked about who would setup what band and mode BUT we never talked about placement of those stations. I agree with the north/south alignment to cut down on the interference. This may not be the best lineup for us but we need to think about it before we start unloading and stick to a plan and not change on the fly.
> Mike N3VOP
>
> > Date: Tue, 16 Jun 2015 20:42:31 +0000
> > To: k3pzn-list at mailman.qth.net
> > Subject: [K3PZN-List] FD Antenna Location Thoughts
> > From: k3pzn-list at mailman.qth.net
> >
> > I spent just a little time, and found a presentation from a nearby FD on how they locate their antennas. If we run 6A we should give this some thought, lest we not have the kindest thoughts to one another when we are on the same band.
> >
> > Okay I confess the file I found is w3ao_2009.pdf. No I have no interest in making our FD that hard, and I wish for us to all be home early Sunday afternoon. (yes think 90 degrees F plus at tear down).
> >
> > Some simple calculation conveys that even if we used all K3's (which we don't have .... ), we can't separate the rigs enough within the 1000 foot rule and our site constraints. So we must use spacing in conjunction with another approach.
> >
> > Here is something I think we should try - arrange to put our 20m SSB, RTTY/PSK31 and 5m SSB into as close to a straight line as possible - roughly North-South but we have a little lee-way to be off some number of degrees. The straight line arrangement will reduce coupling. 20m and 15m are our critical bands in this regard.
> >
> > I am thinking that the NY3A antennas are verticals ? If this is the case, they provide some additional dB's in rejection -- and they can be off of the line, and still achieve enough rejection.
> >
> > I am less concerned about 40m and 80m because the higher QRN masks some of the noise we share. But we should try to put the low band digital antenna into the same line as the similar antenna used on SSB, so that we won't share noise on 40m.
> >
> > A little thought now will help -- and also hopefully minimize how many masts we must install. Take a look at the W3AO site - you will be amazed how they fit the antennas into fewer masts and space, yet co-exist.
> > A straight line arrangement of our 3 primary SSB/digital masts across the longest line we can muster does seem to make sense.
> >
> > We can also spectrum manage so that digital and CW are not both on the same band -- most of the time we should have 3 open bands, and we can trade spectrum through the day.
> > 6 Rigs -- we need to gather about 12 ops or more -- even with 6 'iron people' available Saturday night. Any chance that you the reader could join us ??
> > 73 Curt
> >
> >
> > ______________________________________________________________
> >
> > 73 de K3PZN Westminster, MD
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