[Moon-Net] Moon-net Digest, Vol 435, Issue 4

John Fell john.g0api at gmail.com
Tue Sep 17 10:48:11 CEST 2019


Regarding 1296MHZ and regulatory issues , do not wait - life is too short !

Build your larger dishes now but make them accurate enough to use on the
higher bands ......

As Radio Amateurs we are experts on re-cycle - nothing ever really goes to
waste , it becomes an opportunity to open up another band /mode etc .

Best 73

John
G0API

On Tue, 17 Sep 2019 at 00:55, <moon-net-request at mailman.pe1itr.com> wrote:

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> Today's Topics:
>
>    1. 432 and above EME Newsletter (Peter Blair)
>    2. Coaxial Dynamics Model 81000-A Power Meter (Lionel H. Edwards)
>    3. Re: SUN NOISE ON 144MHZ (Peter Sumner)
>    4. Re: 23cM's Future (Bob Atkins)
>    5. Ayone know the current status of DL0SHF? (Bob Atkins)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 16 Sep 2019 23:41:49 +0100
> From: "Peter Blair" <g3ltf at btinternet.com>
> To: "freetalk moonnet" <moon at moonbounce.info>, "Moon-Net"
>         <moon-net at mailman.pe1itr.com>
> Cc: "Al Katz" <a.katz at ieee.org>
> Subject: [Moon-Net] 432 and above EME Newsletter
> Message-ID: <FE33D559304D4B5FA5018DEB0AA7AAFB at PeterKBlairPC5>
> Content-Type: text/plain; charset="windows-1252"
>
> Al, K2UYH, and Matej, OK1TEH, will be working on the 432 and above EME
> Newsletter this week. Send all your news, asap, together with any technical
> items, to alkatz at tcnj.edu
> Previous NL can be found at http://www.nitehawk.com/rasmit/em70cm.html
> 73 Peter G3LTF
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> ------------------------------
>
> Message: 2
> Date: Mon, 16 Sep 2019 15:53:11 -0700
> From: "Lionel H. Edwards" <ve7bqh at shaw.ca>
> To: moon-net at mailman.pe1itr.com
> Subject: [Moon-Net] Coaxial Dynamics Model 81000-A Power Meter
> Message-ID: <201909162253.x8GMrMN4024850 at r300b.itr-datanet.com>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> Available:
>
> Coaxial Dynamics Model 81000-A Power Meter in like new condition.
>
> Includes:
>
> 100-250 MHz 250W Element
>
> 100-250 MHz 1000W Element
>
> 100-250 MHz 2.5KW Element
>
> The Coaxial Dynamics Power Meter uses Coaxial Dynamics or Bird
> elements. Both are the same.
>
> $300 + ship
>
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 17 Sep 2019 09:10:33 +0930
> From: Peter Sumner <vk8zlx at gmail.com>
> To: serge <ve1kg at eastlink.ca>
> Cc: moon-net at mailman.pe1itr.com
> Subject: Re: [Moon-Net] SUN NOISE ON 144MHZ
> Message-ID:
>         <
> CAN17OwhYrSs4DdoBeMf_oe9O-jzMBAMFDw+6ts3GZmjJX_ZyLw at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hello Serge,
>  if you have a small hand held GPS (like the very cheap GARMIN I have here)
> you can set a way point at the bottom of your tower then walk to your most
> prominent landmark, hill, light pole tree in a property near you and then
> set another way point on the GPS, now the further away the reference point
> is, the more accurate the final angle value you will get.
>
> While at the land mark in the GPS select 'navigate to way point' and select
> the one you created for your tower and you will have a true north angle you
> can then use some math to reverse it to be the azimuth from your tower to
> the location.
>
> I now realize while writing this I could have walked back to my tower and
> did the opposite and selected the navigate to way point and select the
> remote point but hey that's too easy : -)
>
> Of course this does not help with elevation calibration but works a treat
> the get the AZ rotator calibrated.
>
> Regards,
> Peter, vk5pj
>
> On Tue, Sep 17, 2019 at 2:49 AM ve1kg--- via Moon-net <
> moon-net at mailman.pe1itr.com> wrote:
>
> > Hi folks I am back on the air with a small SWR on the TX line which I
> > never had before. 30 watts reflected for 1kw.Must have gotten rain from
> > Dorian somewhere in the system!!!!
> >
> >
> >
> > Now how do you measure sun noise when you have 4X17??? It looks to me my
> > beam  width must be to large
> >
> > Probably 7 degrees so I do not see a peak of Sun noise. I was trying to
> > recalibrate my AZ before my MR last night & when I got MR I was off over
> 4
> > degrees. Not good even on 144mhz.
> >
> > In the past I used a tree as a reference point after calibrating my AZ on
> > the moon went it was visible & used the tree as reference point when I
> > could not see the moon. No more tree after dorian.
> >
> > So what do you guys do to recalibrate your AZ with no moon available???
> >
> > Dying to know!!!!
> >
> > Serge VE1KG
> > _______________________________________________
> > Moon-Net posting and subscription instructions are at
> > http://www.nlsa.com/nets/moon-net-help.html
> >
> >
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> ------------------------------
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> Message: 4
> Date: Mon, 16 Sep 2019 23:47:40 +0000
> From: Bob Atkins <ka1gt at hotmail.com>
> To: "moon-net at mailman.pe1itr.com" <moon-net at mailman.pe1itr.com>,
>         "parinc1 at frontier.com" <parinc1 at frontier.com>
> Subject: Re: [Moon-Net] 23cM's Future
> Message-ID:
>         <
> DM6PR07MB471693842587ACF8219419A8E78C0 at DM6PR07MB4716.namprd07.prod.outlook.com
> >
>
> Content-Type: text/plain; charset="windows-1252"
>
> The only reason not to do to a bigger dish (other than the obvious cost
> and complexity) would be fear of regulatory interference with 1296, not RF
> interference from Galileo satellites using E6 mode which in principle has
> up to a 40MHz bandwidth extending up to 1300 MHz). Even if it did raise the
> noise floor at 1296 (unlikely), the effect would be small and not last long
> as the offending satellite and the moon moved around their orbits.
>
> No band is 100% safe from regulatory interference, especially not in the
> VHF/UHF/Microwave region. It seems pretty unlikely that the USA will lose
> access to 1296 any time in the near future. Slightly more of a issue in
> Europe - which could be a problem for the US since most of the activity on
> 1296 comes out of europe! I think the current proposal is to discuss the
> issue in 2023 (WARC23), so nothing should happen before then.
>
> If I was thinking of up a bigger dish for 1296 (especially one
> significantly bigger than 14ft), I think Galileo would be pretty low on my
> list of reasons not to do it!
>
> 73
> Bob, KA1GT
> ________________________________
> From: Moon-net <moon-net-bounces at mailman.pe1itr.com> on behalf of Dale
> Parfitt via Moon-net <moon-net at mailman.pe1itr.com>
> Sent: Monday, September 16, 2019 9:09 AM
> To: moon-net at mailman.pe1itr.com <moon-net at mailman.pe1itr.com>
> Subject: [Moon-Net] 23cM's Future
>
>
> As I explore possibly moving up from my 14? dish to something larger, I am
> in a holding pattern until we learn more about Galileo.
>
> Is there any definitive information out there or a date when  we will know
> for certain the future of 23cM?
>
>
>
> Tnx,
>
> Dale W4OP
>
>
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> ------------------------------
>
> Message: 5
> Date: Mon, 16 Sep 2019 23:52:44 +0000
> From: Bob Atkins <ka1gt at hotmail.com>
> To: "moon-net at mailman.pe1itr.com" <moon-net at mailman.pe1itr.com>
> Subject: [Moon-Net] Ayone know the current status of DL0SHF?
> Message-ID:
>         <
> DM6PR07MB4716749DA612EB0034B175A8E78C0 at DM6PR07MB4716.namprd07.prod.outlook.com
> >
>
> Content-Type: text/plain; charset="iso-8859-1"
>
> I know DL0SHF had a PA failure some weeks go, so it's off the air. Is
> anyone aware of the current status of the problem and if there's any
> estimate of when it might return to operation?
>
> Bob, KA1GT
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> End of Moon-net Digest, Vol 435, Issue 4
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