Technical papers are solicited for presentation at the 26th Annual ARRL
and TAPR Digital Communications Conference to be held September 28-30,
2007 in Hartford, Connecticut. These papers will also be published in
the Conference Proceedings (you do NOT need to attend the conference to
have your paper included in the Proceedings). The submission deadline is
July 31, 2007. Please send papers to:
225 Main St
Newington, CT 06111
or you can make your submission via e-mail to: maty(a)arrl.org
Papers will be published exactly as submitted and authors will retain
73 . . . Steve, WB8IMY
AO-16 has been in its "voice mode" continuously for nearly a month now. Many thanks to all the users of this "new" bird!
It is time to pause voice operations long to receive some MBL telemetry (limited as it is, it's all we have). Around 0920 UTC on 17FEB08 I plan to return AO-16 to digital mode in order to receive some telemetry. If all goes as planned, it should be back to "voice mode" during the same pass. If not, I'll try to catch it on the 1056 UTC pass. Most of you will be asleep, so I don't think it will interfere with too many contacts.
Looking to the future, we can see that after several months of continuous illumination, AO-16 will begin to experience eclipse periods at the end of March. The eclipse periods will increase and extend through the summer. This may impact AO-16's power budget such that the transmitter output will have to be reduced in order to protect its 18 year old batteries. We'll know more after the eclipse periods begin in late March and early April.
In the meanwhile, enjoy AO-16 and her strong signals!
73 on behalf of the command team,
Mark L. Hammond [N8MH]
I've got a KR-500 and G500a rotor that need a good servicing. I've found a lot of great info in the archives that will help me, but still have a few questions..
I've read that the original bearings were steel, and begin to rust almost immediately after installation. Can anyone suggest a better quality bearing, and perhaps a source and part number?
I've also read that the bearing cages are subject to failure, and some folks prefer to ditch them altogether.
I'm also curious if anyone has any suggestions to optimize my old KLM crossed yagis?
I use a KLM 2m14c and 43518c, and they seem to work fairly well, but are not exactly
top performers. I've never opened the polarization switcher units on either antenna, but suppose I might want to clean the relay contacts?
Since my tower must be tilted over to service the rotator and antennas, I'd like to get several years of service out of this gear.
Thank you for any help.
A while ago I seem to remember a discussion on availability of the small
push on RF connectors used inside the FT-736R to interconnect boards. These
same connectors are used in quite a few radios. They were a crimp on style.
Anyone remember the source?
"A closed mouth gathers no feet"
I have a lot of trouble tuning in stations on AO-16,,, strong sigs, but i
just haven't got the knack of it,,, I put the receiver on USB,,, even the most
minor adjustments dont do it... any hints? All sounds like you are listening
to SSB on an AM radio... by the time I get a station tuned in, they are gone
73 Bob W0DXZ
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Well, I didn't get anything from Delfi C3 on its first pass over the
West Coast, but
I had heard that some people managed to get some signals from some of
cubesats, so I set up for SEEDS on the low, second pass. Maximum
elevation was only
9 degrees, and I recorded the pass with my FT-817 and a little voice
the doppler by hand. My morse skills are feeble, but even I could
pick out the SEEDS
in the telemetry stream. Audio is here:
Congrats to all the teams!
This past weekend, W2GPS, WA4SXM and I attended the premier of AMSAT.ORG
in Grand-Am Racing at the Virginia International Raceway (VIR). As
reported earlier, Jim Jaeger (K8RQ) arranged for the AMSAT logo to
appear prominently on the yellow Doran Racing Kodak #77 Dallara/Ford car
driven by Brad Jaeger (Jim's son) and Memo Gidley. The Doran Racing web
site has a gallery of photos featuring their #77 Kodak & #47 BSi cars
available for viewing at http://www.doranracing.com/08_vir/photo.htm.
The VIR race can be seen this coming Saturday on the cable SPEED CHANNEL
from noon to 3PM EDT (16:00-19:00 UTC).
AMSAT's logo will again be flying this coming weekend at the Laguna Seca
track in California (see
Rick and I have HUNDREDS of additional photos of the AMSAT car in action
which we will post soon for your enjoyment. You will be able to see (a
large photo of) the car in the AMSAT booth at Dayton.
Maybe I have mixed up COMPASS and Cute 1.7 ?
I believed this was Cute, but now I start to believe this was in fact COMPASS:
.. which means that what I thought was COMPASS was in fact Cute, and that the CW
from Cute is good and COMPASS not.
Ahhh ...: to many satellites flying by at the same time at the same frequency
to confusing for me - trying to jump from one to the next sat :-))
Henk - PA3GUO