I haven't done anything with AO-73, but I understand it's transmitting
the FEC format I originally designed for AO-40.
How well is it working? What fraction of the frames are successfully
decoded? How bad is the fading? I designed my format specifically for
the spin fading on AO-40, and if the
AMSAT-UK is on top of this 108-satellite payload!
(That's five CubeSats ... one with 104 Sprite satellites!)
http://www.amsat-uk.org
Clint K6LCS
http://www.hamradioprogramming.com
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the
Phil,
That is an interesting question. I have fooled with a simple 1/4 wave
vertical, and observe very bad fading with a period of 10's of seconds
(5 to 10 times longer than individual frames). It seems to my ear that
signals need to be pretty strong in order to decode on AMSAT-UK's
Overall I'll take funcubes telemetry over any AFSK bird It's extremely
simple to receive and in my opinion it's much better than I've ever had
luck on an AFSK bird.
On Saturday, April 19, 2014, Joe Fitzgerald jfitzger...@alum.wpi.edu
wrote:
Phil,
That is an interesting question. I have
Phil,
I have been monitoring the FC telemetry pretty closely and have some
observations for what it is worth:
1.The last update to the Dashboard produced marked improvement in
decoding the telemetry.
2.Using an IC910, M^2 14-element RHCP yagi with antenna mounted
preamp, I
I guess I was lucky I dont recall any fading with AO 40.
On 4/19/2014 4:33 AM, Phil Karn wrote:
I haven't done anything with AO-73, but I understand it's transmitting
the FEC format I originally designed for AO-40.
How well is it working? What fraction of the frames are successfully
decoded?
It looks like the Alaskan Arrow 146/437-14 with 4 elements on 2 meters
and 10 elements on 70 cm is now available as a regular item from Arrow
Antennas. It had previously been a special order item only.
http://www.arrowantennas.com/arrowii/alaskanarrow.html
73,
Paul, N8HM
Hi John, W0JAB
On AO40 you should remember mostly the fading due of
spin modulation.. WOW..WOW.WOW..
because of rotation of the satellite over the Z axis ! !
73 de
i8CVS Domenico
- Original Message -
From: John Becker w0...@big-river.net
To:
