<br><br><div><span class="gmail_quote">On 8/7/06, <b class="gmail_sendername">Michael Nardella</b> <<a href="mailto:michael@nardella.com.au">michael@nardella.com.au</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>My 2c worth.<br><br>Depending on distance.<br>Short. Binos if in los.<br><br>Long distance, compass (digital preference), then signal strength.<br>And a lot of trial and error. eg,. Reflections may be stronger than direct signal.
<br><br>Michael VK3PS</blockquote><div><br>I'm looking for a scientific approach that will minimise the trial and error :)<br><br>So far i'm thinking...<br><br>Antenna-based DF Ideas:<br>* Omni-antenna dopplar array<br>* Loop antenna (i suspect this won't work effectively as a DF antenna at such high frequencies, but i need to explore this further ;)
<br>* Directional antenna w/ search-pattern software controlled stepper motors (all directions) rotating head and signal meter or spectrum analyzer<br><br>Secondary, bolt-to-directional-antenna DF Ideas:<br>* GPS and AHRS (or if not an AHRS then digital compass and digital bi-directional inclinometer)
<br>* Powerful laser technology?<br><br>Or some combination from all the above.<br><br>BTW, I have or am building equipment to try all the above with the exception of the laser stuff. My research is for a different application than is the situation proposed here, but there are many similarities in the problem space.
<br><br>L8r,<br>F00 VK3HAX<br> </div><br></div><br>