[time-nuts] Crude Survey Technique

TMiller at skylinenet.net TMiller at skylinenet.net
Thu Nov 21 15:45:32 EST 2013


If you want true north, set up a camera that has time or bulb shutter at the south end of your property. Put in a marker stake. take a time exposure at night with the camera facing north. If you expose for about 30 minutes, you will get a landscape with the stars rotating around the north star. You can then mark the north location on your property under the north star.

A compass siting can give the mag north.

________________________________________
From: time-nuts-bounces at febo.com <time-nuts-bounces at febo.com> on behalf of Brian Lloyd <brian at lloyd.com>
Sent: Thursday, November 21, 2013 2:04 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Crude Survey Technique

On Thu, Nov 21, 2013 at 12:52 PM, <johncroos at aol.com> wrote:

>  I wish to establish a north south line on my property to an accuracy of
> +/- 2 degrees.
> Could this be done by loading a T-bolt, Antenna, Power source, and laptop
> into my
> little red wagon? The idea being to find two positions several hundred ft
> apart where either LH or T-bolt Mon report the same latitude? Will either
> of these programs report to sufficient accuracy? The base line would be 300
> ft, though more is possible.I realizes that the T-bolt is not a survey
> device, but I can spend several hours fixing each position if required.
>

True north or magnetic north? In any case, a good lensatic compass and
knowing your magnetic variation should easily get you to within 2 degrees
and is a lot easier than doing a survey with your GPS.


--
Brian Lloyd, WB6RQN/J79BPL
706 Flightline Drive
Spring Branch, TX 78070
brian at lloyd.com
+1.916.877.5067
_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

________________________________
CONFIDENTIALITY NOTICE: The information contained in this electronic message is confidential information intended for the use of the individual or entity named above. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this electronic message to the intended recipient, you are hereby notified that any dissemination or copying of this communication is strictly prohibited. If this message contains non-public personal information about any consumer or customer of the sender or intended recipient, you are further prohibited under penalty of law from using or disclosing the information to any third party by provisions of the federal Gramm-Leach-Bliley Act. If you have received this electronic message in error, please immediately notify us by telephone and return or destroy the original message to assure that it is not read, copied, or distributed by others.


More information about the time-nuts mailing list