<br><br><div class="gmail_quote">On Dec 11, 2007 2:15 AM, Stephen H. Smith <<a href="mailto:wa8lmf2@aol.com">wa8lmf2@aol.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="Ih2E3d">I've always though embedding the active RF circuitry of of a GPS<br></div>receiver in some other device's box (like a transceiver or TNC) is a<br>rather perverse concept since it then forces you to deal with the
<br>horrendous coax losses at 1.6GHz to get from the external antenna to the<br>GPS. Not to mention having to deal with fabricating coax cable<br>assemblies with those nasty subminiature connectors like SMAs or SMCs<br>that GPS receiver modules and patch antennas use.
</blockquote><div><br></div><div>I don't think it's all that bad an idea, as the industry has come up with a selection of amplified GPS antennas to deal with this scenario. A few years ago I got an old Trimble 6 channel GPS for $15 from a surplus electronics place, then paid about $5 or $10 for an amplified antenna on ebay. It has been in my truck ever since, and providing excellent service.
</div><div><br class="webkit-block-placeholder"></div><div>It is cheaper and simpler to mount a GPS18 or Deluo outside as Stephen says, but an internal GPS isn't the end of the world.</div><div><br></div><div>-Jason<br>
</div></div>kg4wsv