<div dir="ltr"><span style="font-size:16px">This guy has started doing some youtube reviews of the BRB900</span><div style="font-size:16px"><br></div><div style="font-size:16px"><a href="https://www.youtube.com/watch?v=8teGnVwn7Cc" rel="noreferrer" target="_blank">https://www.<span class="gmail-m_-4554953718737587691gmail-il">youtube</span>.com/watch?<wbr>v=8teGnVwn7Cc</a><br></div><div style="font-size:16px"><br></div><div style="font-size:16px">Greg K7RKT (yes, I make the BRB900)</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 21, 2017 at 8:33 AM, Jason KG4WSV <span dir="ltr"><<a href="mailto:kg4wsv@gmail.com" target="_blank">kg4wsv@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Sun, Aug 20, 2017 at 11:58 PM, Andrew Rich <<a href="mailto:vk4tec@tech-software.net">vk4tec@tech-software.net</a>> wrote:<br>
> Hello<br>
><br>
> I have a medium sized drone a dji inspire 1<br>
><br>
> I am looking for a tracker that has gps and in the order of 300 mw<br>
<br>
<br>
</span>Check out the Big Red Bee rocket trackers:<br>
<br>
<a href="http://www.bigredbee.com/" rel="noreferrer" target="_blank">http://www.bigredbee.com/</a><br>
<br>
<br>
also, do some (a lot) of ground testing. I've got some broken parts<br>
and a repaired airframe left over from a crash due to cheap consumer<br>
electronics on the command and control being extremely intolerant of<br>
some 900MHz spread spectrum (at 1W, IIRC) telemetry that was bolted<br>
onto the aircraft.<br>
<br>
The 2.4GHz COTS receiver interpreted the 900MHz transmission as "full<br>
power to the throttle" for about half a second, then dropped throttle<br>
back to zero. It was high enough in the air to break the carbon fiber<br>
airframe when it hit the concrete.<br>
<br>
While investigating the incident, I found that a 5W HT keyed up close<br>
by would cause the ardupilot to think the horizon had tilted 30<br>
degrees, so the COTS RC receiver wasn't the only thing with problems.<br>
<br>
<br>
-Jason<br>
<span class="HOEnZb"><font color="#888888">kg4wsv<br>
</font></span><div class="HOEnZb"><div class="h5">______________________________<wbr>_________________<br>
aprssig mailing list<br>
<a href="mailto:aprssig@tapr.org">aprssig@tapr.org</a><br>
<a href="http://www.tapr.org/mailman/listinfo/aprssig" rel="noreferrer" target="_blank">http://www.tapr.org/mailman/<wbr>listinfo/aprssig</a><br>
</div></div></blockquote></div><br></div>