Students at the Ivy League Brown University are developing an amateur radio satellite EQUiSat that will carry a Xenon Flash Tube (XFT) subsystem to act as an Optical Beacon that should be visible to the unaided eye of observers on Earth.
73 Trevor M5AKA
Has anyone located a driver for the LVB Tracker internal USB to serial
port adapter on Windows 7 x64?
If not, has anyone reverted to the serial port connection on LVB Tracker
and used an external USB to serial port adapter successfully with
SatPC32 on Windows 7 x64?
I have an Edgeport multiple USB to serial port that has drivers for
Windows 7 x64 that I will use if I have to. I would prefer using the LVB
Tracker with its USB to serial adapter if someone has another solution.
Here is a quick AO-16 update. On Sunday I turned AO-16 long enough to
get some telemetry packets. The satellite would remain on for less
than one minute after being commanded on. A quick test of the "bent
pipe" voice mode repeater was successful. . The "hardware watchdog
timer problem" is still evident; as expected, spacecraft temperatures
are insufficient to keep the transmitter ON (needs to be above 15 deg
Orbit projections suggest that satellite illumination conditions will
not result in increased temperatures for nearly 10 years. Command
stations do periodically turn AO-16 "ON" to check on its condition and
see if the hardware timer problem has "automagically" fixed itself
(which in not anticipated, but who knows...).
3 Oct 2010 1838 utc
PACSAT MBL Telemetry Decoder Ver. 1.3 (c) Mike Rupprecht, DK3WN
+10V Battery Bus : 0.00 V
Battery Charge Reg : 0.55 mA
Base Temp : 9.07 °C
PSK RF Out : 1.90 W
+5V RX Bus : 4.87 V
+8.5V RX Bus : 8.49 V
+10V RX Bus : 11.24 V
Here is another teaser :) Several months ago I commanded the AO-16
S-band transmitter ON; it too remains functional (albeit weak), and
was received by me, Drew KO4MA, and Alan WA4SCA.
Mark L. Hammond [N8MH]
In addition: Good reception of sat carriers (+/- 2320.190 MHz)
with AIDC3733 2400>144 converter (was modified for AO40 rx):
receiver set at +/- 64.190 MHz (instead of 144.190)
73 de Michel F6HTJ
Hello all; for information here in south west Europe we use 2320,100 to
2320,300 cw/ssb portion of 13cm band for tropospheric , AS , RS, traffic.
I have been told by Piero I5CTE
there is permanent continuous carrier beacon around 2320.190 MHz (+/-
doppler) by 1 of the 3 Sirius elliptic NA satellites.
It appears reception is very good here with small 20 turn helix
antenna (in spite of 12m heliax coax) peaking 539.
Apogee (50000km ) around 325deg with 27deg elevation.
F5BOF reports same signal with small hand held 25 elements f9ft yagi.
So these are for us very interesting beacons. Depending hours we can receive 1 o 2 sats.
Real time positions (Sirius-1 / Sirius-2 / Sirius-3) here:
Any info about beacon sat polarisation and eirp ?
73 de Michel F6HTJ
My cw is pretty poor. Not up to snuff to copy the hex character groups of
most telemetry streams.
Am looking to use the sound card in a computer to decode cw telemetry.
What are people using?
My home club G4RFR are hosting the RSGB Centenary Call G100RSGB on Thursday
4th April from Wimborne, Dorset located on the South Coast of the UK.
There are some passes throughout the day high enough to attempt some QSOs.
All times here are UTC
VO-52 08:32 - 08:42
AO-7 08:58 - 09:13
FO-29 10:03 - 10:21
FO-29 11:48 - 12:05
AO-7 12:37 - 12:51
AO-7 14:25 - 14:44
AO-7 16:16 - 16:37
VO-52 17:54 - 18:06
Hopefully we will get some success.
Sorry they will not count for anyone hunting the RSGB Awards but hope to
work you on other modes.
We will post alerts here:
Clive - G7SVI
Our http://www.amsat.org web pages continue their recovery to return
the tools and features we enjoyed.
The good news is that a new-and-improved web news posting system is
proving itself to be quite useful. So, while the remainder of the
pages will be restored "soon" we are now able to post news items as
soon as possible without waiting for the weekly ANS bulletin news
The two most recent news items posted include:
+ ARRL Seeks Comments on 5 and 10 GHz National Band Plans
+ Auckland Technology Convention KiwiSAT Photos Posted
If you hear of anything interesting to Amateur Radio in Space please
send it to ans-editor(a)amsat.org.
73 de JoAnne K9JKM
Editor, AMSAT Journal
E-members of AMSAT-UK can now download the PDF of the Spring Issue of OSCAR News via the website http://www.amsat-uk.org/
This edition has an article on the ISS DATV system - HAM-TV: from theory to real practice by IW4BLG.
73 Trevor M5AKA