I have had simmilar issues. one source for me has been the RF cable between the antenna and dongle. it actualy works well for under 500' without the yagi...
http://auric.gag.com/index.php?route=product/product&path=37&product_id=59 the 10.00 adapter is a good idea to eliminate the patch cable, I need to get one of those. The other is the i have the 7 element, i have heard that by taking off the front half, it lowers the directionality of the antenna, and increases the signal at short ranges when not exactly lined up with the TM. Probably okay if you only going a few thousand feet. Rotating the yagi, from horizontal to vertical also helps... LOS is key with the tm. I live on the crest of a hill, I can arm the tm in my front yard, and exit my horseshoe drive which goes down the hill. the crest blocks all reception... if i drive about 1.5 miles further I can go to the corner store about .75miles away, and have excellent reception. but its LOS from my yard. Yes, the truckers pumping deisel on thier rigs had a look of concern with me sticking that big yagi out. Clay On Tue, Feb 5, 2013 at 3:23 PM, Dennis Oubre <[email protected]> wrote: > **** > My students ask: > > We're having problems communicating with the rocket in ranges of +300 feet > even when using the yagi antenna suggest > > Dennis Oubre > Robotics & Rocketry Instructor > AJ Moore Academy at University High School > Waco, Texas > Light travels faster than sound, that's why some people appear bright > until you hear them speak. > - Anonymous > > > _______________________________________________ > altusmetrum mailing list > [email protected] > http://lists.gag.com/mailman/listinfo/altusmetrum > >
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