Beams True North.
The difference is called Magnetic Declination. There are a number of ways
to calculate offset for your longitude but one of the easiest, and
available to almost everyone in this age of smartphones, is to use one of
MANY GPS status apps available for Android and iPhone. Depending on
program, you will see the declination represented in one of two ways -
either a extra small colored line on the compass rose display,
corresponding to mag north, or, an actual number marked 'dec' or 'decl'.
Here in DM58, being pretty far west, my declination is 10 deg east. I
suspect you will have a very small declination there in FN41, being a lot
more 'due south' of the mag pole.
Jay W9RM
DM58 CO
Keith J Morehouse
Managing Partner
Calmesa Partners G.P.
Olathe, CO
On Thu, Jan 5, 2017 at 10:27 AM, Paul Rollinson <Paulrollinson@sbcglobal.net
> wrote:
> Hi Guys,
>
>
>
> This may be a stupid question but..
>
>
>
> Do you calibrate your beam headings for true north or magnetic north?
>
>
>
> I believe it's true north. If so, what is the degree difference is FN41AU
> to
> the east of magnetic north?
>
>
>
> I have an issue with my rotor pot and just tried EME pointing the beam
> using
> a compass. Only after did I realize this may have been a mistake. No
> contact.
>
>
>
> Thanks,
>
>
>
> Paul Rollinson, KE1LI
>
> Rollinson Associates
>
> 860-928-5147
>
> 860-928-3844 Fax
>
> 860-208-8814 Cell/Text
>
> <mailto:Paulrollinson@sbcglobal.net> Paulrollinson@sbcglobal.net
>
>
>
> Representing Component Part
>
> Manufacturers for over 35 years
>
>
>
>
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
> _______________________________________________
> VHFcontesting mailing list
> VHFcontesting@contesting.com
> http://lists.contesting.com/mailman/listinfo/vhfcontesting
>
_______________________________________________
VHFcontesting mailing list
VHFcontesting@contesting.com
http://lists.contesting.com/mailman/listinfo/vhfcontesting
|