mymax 0 Report post Posted May 17, 2008 Hi guys (and gals if there are), I'm new to this but have a Trex600 flying with an HD cam and I'm about to go FPV when I mount the Tx. I also just got my video glasses/goggles today Ok, the question is how can I find out the exact frequency of my Tx found here: http://www.rangevideo.com/index.php?main_p...;products_id=24 I actually have a 1w Tx also but do not have a link for that. It's the same ranges though as it appears all these 900mHz units are. The reason is that I want to be the most accurate with my dimensions for the GP Patch antena. Thanks! Quote Share this post Link to post Share on other sites
Mr.RC-Cam 127 Report post Posted May 17, 2008 The frequencies that are selected with the switch are very stable. Just use the mfg's published values. Quote Share this post Link to post Share on other sites
mymax 0 Report post Posted May 17, 2008 The frequencies that are selected with the switch are very stable. Just use the mfg's published values. So, what you are saying is that if I use the correct math in getting my ratio correct for the GP at say 910mHz, then it will be good? I just didn't know if anyone actually tested these and found the frequency to be off... so then you make the GP Patch accordingly to match the adiusted frequency. Thanks Quote Share this post Link to post Share on other sites
Mr.RC-Cam 127 Report post Posted May 17, 2008 The freq's are handled by a crystal controlled PLL. So, as long as the A/V system is operating correctly the published values are fine to use. Quote Share this post Link to post Share on other sites
mymax 0 Report post Posted May 17, 2008 Ok, thanks! Quote Share this post Link to post Share on other sites
