[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Re: True North - Sorry - 1 hour error in original calc.



Why not aim your antennas at Polaris, the north star.  At that point your
azimuth is zero and the elevation is equal to your latitude.

Clifford Buttschardt wrote:
> 
> Hey all, this is JUST too complicated!  Indeed true North or South is
> easily gotten by calculations of "Local Apparent Noon" as many of us that
> have done navigation, but what is important is what time is midway
> between sunrise and sunset.  The very worst error is two minutes and for
> ham purposes, that is minor!  Simply find the time of local sunrise and
> sunset and divide by two.  This assumes that all the local differences are
> already calculated-----which is usually done by the TV personalities who
> have no clue what they are expounding, but they sure try hard.
>      This eliminates the problem of local or UTC time.  As has been
> suggested earlier, I wish all of us would be on UTC, but then, this not
> likely to happen, but the idea of satellite operators on UTC is excellent!
>      Do consult some local charts if you can.  On the coast the sunrise
> and sunset is gotten easily.  Do not be surprised if that figure is
> quite different from local noon!  In any case the result is usually no
> more than the difference between your house and the local pub!
> Cliff K7RR
> 
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org

-- 
73, Roy

Internet: w0sl@amsat.org
Home Page: http://home.swbell.net/rdwelch
----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org


AMSAT Top AMSAT Home