[Moon] Moon tracking - intriguing

[w2drz at ramcoinc.com]

Hi Sam,

track THE SUN AND CORRECT IF DIFFERENT.

TOM   w2drz

----- Original Message ----- 
From: "Sam Jewell" <jewell at btinternet.com>
To: "Moon-Net" <moon-net at mailman.pe1itr.com>; <moon at moonbounce.info>
Sent: Saturday, June 27, 2015 1:37 PM
Subject: [Moon] Moon tracking - intriguing


> As I mentioned a few days ago, I am now able to listen off the moon on 3cm 
> using my 2.3m PF dish. I have carefully set up my digital inclinometer to 
> indicate dish elevation. Soon after moonrise today, with the moon at 113 
> degrees azimuth, and after the beacon switched on at 10 degrees ( in 
> Germany), I saw the signal switch on. In continuing to track it I set the 
> elevation by hand to the indicated figure in VK3UM. I then lost the beacon 
> for some time.
> Moon rise was over the North Sea at about 2 miles from here. When I 
> eventually found the beacon again the moon was around 12 degrees elevation 
> according to VK3UM but the digital inclinometer was indicating around 13.6 
> degrees.
> My question; is it possible that refraction was as much as that, or is my 
> inclinometer still not set correctly? Could the beacon signal have been 
> 'locked out' by upward refraction from any duct over the sea at these low 
> angles? It has been a warm day and there is probably a good surface duct 
> running. I must check after my evening meal.
> This is probably a stupid question to those of you have experienced this 
> before. My experience of 10GHz is limited to a fixed horizon angle over 
> the sea towards the near continent, so I am never aware of these effects.
>
> Hoping someone knows the answer.......or can point me to some reference or 
> some others experience. I am scratching my head as to what was going on!
>
>
> 73 de Sam, G4DDK
>
>
>
>
> Sent from my DDKpad
>
> g4ddk.com
> g4ddk.blogspot.com
>
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