David, VK5DGR, built this very fine QRSS rig, and is currently shaking up the grabbers with 20 mW.
I really like his way of putting that power level in perspective:
"Look around your room and find a glowing LED. Well a typical red LED has 2V and 10mA flowing through it, or about 20mW. It can barely make it a few metres to be detected by your eyes. Imagine detecting it at a range of 1200km! That’s what I find remarkable about QRSS - tiny power levels that go a very long way."
For more info, go to David's "Beer, Coffee and a little DSP" blog:
http://www.rowetel.com/blog/?p=118
Upcoming HAREC Amateur Radio Licence Exams in Ireland - 11th May 2024
-
From the IRTS... "*HAREC Exams on May 11th in Dublin and Tralee, Co. Kerry*
*The IRTS Examinations Board is pleased to announce that it has received
app...
2 hours ago
Also David showed me some interesting issues with the frequency counter attached. Who'd have thought that it would load it up so much as to pull the power output down by half? =)
ReplyDelete