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Monster Media 1994 #1
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RIGMGR20.ZIP
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RS12INFO.TX_
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RS12INFO.TX
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1994-01-30
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176 lines
RS-12 INFORMATION & OPERATING INSTRUCTIONS
Prepared by KC4ZGL Ham Software
for version 2.0 and higher of Rig Manager
- RS-12 GENERAL INFORMATION
RS-12/13 are replicas of RS-10/11. They were built at the Tsiolkovskiy Museum for
the History of Cosmonautics in Kaluga City, and industrial centre 180 km southwest
of Moscow. The chief architects of the project were Aleksandr Papkov and Victor
Samkov. RS-12/13 is attached to COSMOS 2123, a Russian Maritime navigation
satellite. RS-12/13 shares power from the navigation module. RS-12 operates in
mode K (15M Up & 10M Down, so it can be worked with any HF rig with split mode)
only at this time.
RS-12/13 DATA
NAME NORAD # COSMOS # INCL HEIGHT PER ORBIT TYPE
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RS-12/13 21089 2123 83 deg 550 nm 105 min Circular Polar
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TRANSPONDER FREQUENCIES
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MODE K: UpLink 21.210-21.250 CW or USB Offset
DownLink 29.410-29.450 CW or USB +8.200 MHz
Beacon 29.408.1 CW
Robot
UpLink 21.129.1 CW
DownLink 29.454.3 CW
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TECHNICAL DATA
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DC POWER: All Systems OFF: 4.6 W All Systems ON: 35 W
RF POWER: Beacon & Robot (High/Low): 0.45/1.2 W
Transponder TX : Approx. 8 W
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WORKING RS-12
RS-12 can be worked with any HF rig that has a split band operating mode. You don't need
a fancy antenna tracking system, in fact RS-12 works best with a 10/15M vertical antenna
or dipole. You can also use a beam, but you will have to point it in the right direction and
maintain a track, don't worry about elevation just point in the right direction.
In order to work RS-12 you will have to know when it will be in line of sight to your QTH.
The best way to do this is to get a copy of one of the satellite tracking programs that are
available on many BBS's across the country. I use "STSORBITS Plus" which is the best I've
seen (runs in DOS at present). It has many nice features and has the attributes for the
Shuttle orbits as well. This program is available on BBS's throughout the US and is used by
NASA and NORAD. If you can't find it on a local BBS, you can get it directly from the program's
author at the STS BBS (310) 541-7299.
Once you get your satellite program running, with current keplerian data, you can predict
when RS-12 will be in communication range of your QTH. Typically, the window of
visibility for RS-12 is anywhere from about 5 Minutes to about 15 Minutes, and it generally
follows either a North to South or South to North track because of it's high inclination of
83 degrees. Working RS-12 is fast-pace because it's like working a QRP DX station that is
on the air for just a few minutes. Once you make your first contact on RS-12 you'll be hooked.
It's very challenging and rewarding to work and awards are also available.
A few minutes before the satellite is visible to your QTH, you should tune your rig to the CW
Beacon frequency and listen for it. It has a distinct pattern to it identifying itself along with
sending out various telemetry data (you can get a guide from AMSAT that has this info).
Once the CW beacon starts to move your S-Meter you can either work the spacecraft
robot or start calling "CQ Satellite" in CW or USB within the Mode K band. It is a bit tricky
trying to keep the VFO's aligned with the proper offset while tuning (this is where my
RS-12 Mode comes to play in the Rig Manager Program, see detailed instructions below)
The general idea is to find a frequency (for both uplink & downlink) and park there, adjusting
the RIT to compensate for Doppler shift. Remember, adjust RIT up as the satellite moves
toward your QTH and down as it moves away.
ROBOT
To work the satellite robot tune your rig to the proper frequencies, as above, or use the
Robot mode in Rig Manager. The Robot enables amateur radio operators to "contact"
the satellite. If you call the spacecraft using the correct protocol, an onboard computer
will (1) acknowledge your call, (2) assign you a serial contact number, and (3) store your
call letters and contact number for later down linking to a command station. QSL's for
these contacts are available from:
Radio Sport Federation
Box 88
Moscow, Russia
The Robot receive window is 2-3 kHz wide, therefore you should adjust your XIT control
a few kHz low when it is approaching, and a few kHz high when it is receding.
When the Robot is active, an autotransponder calls CQ and provides the uplink frequency
being monitored. For example, RS-12 might be heard transmitting:
"CQ CQ DE RS12 QSU 21129 KHZ AR"
After which the Robot will listen for calls on 21.129 kHz. Calling the Robot is easy. Simply
call the satellite, give your callsign, and end with AR. For example:
"RS12 DE KC4ZGL AR"
If the Robot does not copy your callsign correctly, it may ask for a repeat and respond with
"QRM", "QRZ", or "RPT". Successful contacts are rewarded with a Robot response complete
with a QSO number, such as:
"KC4ZGL DE RS12 QSO NR 589 OP ROBOT TU USW QSO NR 589 73 SK"
High speed CW (10-30 wpm) works best for calling the Robot. The Robot will respond at the
speed it is called. Hint you might want to have a tape recorder, or use a TNC in CW mode
so you won't miss the QSO number!
---------------------------------------------------------------------------------------------------------------------------
RIG MANAGER RS-12 MODE
The Rig Manager's RS-12 Mode makes working RS-12 a lot easier and quicker, especially
since quickness often counts when working this satellite. You do not have to memorize
any of the frequencies and modes, the program manages all of that along with correctly
adjusting the XMIT VFO to the proper uplink frequency based on the rig's current RX
frequency and mode of operation.
You can access the RS-12 Mode in Rig Manager by clicking on the "RS-12 SAT" button
while in the "Band Select" dialog box. Upon clicking the "RS-12 SAT" button the dialog
box for the "RS-12 HF Satellite Mode" will appear and at the same time the program will
automatically place your rig in the "CW BEACON" mode. This is usually the first step when
working RS-12 (see above info). Once the operator decides the signal from the beacon is
good he or she can select any of the other 3 operation modes ROBOT, OPERATE CW, or
OPERATE SSB.
ROBOT MODE:
If "ROBOT" is selected the rig will automatically be initialized (uplink &
downlink) for Robot operation. All the operator needs to do is adjust RIT or XIT to compensate
for Doppler shift.
OPERATE CW MODE:
The "OPERATE CW" mode, when selected will initialize the rig to the low end of the
mode K band (21.210 for Extra class, and 21.225 for Advanced Uplink & appropriate
Downlink frequencies). The Band bars (Red & Blue) will become active and the "TRACK
VFO" button will appear. The operator has 2 choices for tuning in this mode:
1. By turning the frequency knob on the rig to the desired frequency, and then clicking on
the "TRACK VFO" button, or the enter key on the computer, if the button has focus. The
Uplink frequency on VFO B will be set to the correct frequency (8.2 MHz) below the
receive frequency. Be sure to either zero the RIT or turn it OFF before clicking on the
TRACK button, because the same offset will be applied to the XMIT VFO!!
2. The operator can slide the mouse along the Red & Blue band bars (Uplink & Downlink
frequencies will increment or decrement). When the desired frequency is reached clicking
the left mouse button will automatically tune both VFO's.
CW operation can occur anywhere within the mode K band.
OPERATE SSB MODE:
The OPERATE SSB Mode works almost the same as the CW mode above, with the exception
that the rig is placed in USB and the initial frequency is set for 29.430 RX & 21.230 TX,
because this is where a lot of SSB activity takes place. SSB operations can occur anywhere
within the Mode K band.
RS-12 INFO BUTTON:
Clicking on the "RS-12 INFO" button brings this text file up for view in Windows Notepad.
That's it for now, good luck working RS-12, it's fun and addicting.
CU on the Bird!
73, Tony KC4ZGL.