(Continued from previous message)
which need not be circularly polarized. For the  10m  downlink,  a  sloping
dipole or ground plane to the shack receiver will suffice, although  a  10m
beam works better for DX. If the receiver is old, then a pre-amplifier will
improve the signal to noise. For Mode 'K' and 'T' needs see RS-12/13.
    Frequencies RADIO SPUTNIK 10  (RS-10)
Beacon/ROBOT         29.357 MHz (CW)
Beacon/ROBOT         29.403 MHz (CW)
Mode A Uplink       145.860 - 145.900 MHz (SSB,CW)
Mode A Downlink      29.360 -  29.400 MHz (SSB,CW)
ROBOT A Uplink      145.820 MHz (CW)
ROBOT A Downlink     29.357 or 29.403 MHz (CW)
Beacon/ROBOT         29.357 MHz (CW)
Beacon/ROBOT         29.403 MHz (CW)
Mode K Uplink        21.160 - 21.200 MHz (SSB,CW)
Mode K Downlink      29.360 - 29.400 MHz (SSB,CW)
ROBOT K Uplink       21.120 MHz (CW)
ROBOT K Downlink     29.357 or 29.403 MHz (CW)
Beacon/ROBOT        145.857 MHz (CW)
Beacon/ROBOT        145.903 MHz (CW)
Mode T Uplink        21.160 -  21.200 MHz (SSB,CW)
Mode T Downlink     145.860 - 145.900 MHz (SSB,CW)
ROBOT T Uplink       21.120 MHz (CW)
ROBOT T Downlink    145.857 or 145.903 MHz (CW)
   Frequencies for RADIO SPUTNIK 11  (RS-11)
Beacon/ROBOT         29.407 MHz (CW)
Beacon/ROBOT         29.453 MHz (CW)
Mode A Uplink       145.910 - 145.950 MHz (SSB,CW)
Mode A Downlink      29.410 -  29.450 MHz (SSB,CW)
ROBOT A Uplink      145.830 MHz (CW)
ROBOT A Downlink     29.407 or 29.453 MHz (CW)
Beacon/ROBOT         29.407 MHz (CW)
Beacon/ROBOT         29.453 MHz (CW)
Mode K Uplink        21.210 - 21.250 MHz (SSB,CW)
Mode K Downlink      29.410 - 29.450 MHz (SSB,CW)
ROBOT K Uplink       21.130 MHz (CW)
ROBOT K Downlink     29.407 or 29.453 MHz (CW)
Beacon/ROBOT        145.907 MHz (CW)
Beacon/ROBOT        145.953 MHz (CW)
Mode T Uplink        21.210 -  21.250 MHz (SSB,CW)
Mode T Downlink     145.910 - 145.950 MHz (SSB,CW)
ROBOT T Uplink       21.130 MHz (CW)
ROBOT T Downlink    145.907 or 145.953 MHz (CW)
                                     Pat Gowen,  G3IOR  27 April 1992
16609.SAT
                CHARACTERISTICS of MIR
   MIR (Meaning 'Peace'  [and  'Earth'])  is  the  USSR/Russian  Federation
continously manned Space Station that followed  it's  predecessor  'SALYUT'
series into orbit on 19 February 1986. It  has  numerous  modules  attached
such as KWANT-1, KWANT-II, KRISTALL and others that are given seperate NASA
designators although part of the same object.  It is in circular earth 51.6
degree inclination orbit of a period averaging some 92.3 minutes, a perigee
averaging 363 Km and an apogee of 410 Km, but over a period of 3 to 5 weeks
frictional drag will lower the orbit and decrease the period. It will  then
be boosted, placing  the  spacecraft  again  in  to  a  higher  orbit  with
increased period and lower mean motion. For this reason, orbital data needs
to be constantly checked and updated by a rapid topical source such as  the
AMSAT Nets, otherwise serious incremental tracking errors may result.
   The  manning  MIR  cosmonauts  are  given  amateur  radio  training  and
examinations by Boris Stepanove UW3AX and Leonid Labutin  UA3CR,  and  have
been allocated callsigns  of  elevating  numeric 'U' then 'R' with 'MIR'
suffix, e.g. U1MIR, U2MIR, etc., currently R0MIR.
    MIR is equipped with with 2.5 watt and 25 watt 2m FM  transceivers,  an
AX.25 1200 baud standard PACKET terminal  and  a  MAILBOX  R0MIR-1.  These
facilities can function simultaneously. The station has an  additional  add
on that permits a continuous information bulletin transmissions or the  re-
transmission of uplinked earth calls on a one  minute  receive  one  minute
transmit cycling basis. Soon 432 MHz  transceivers  may  be  added  to  the
station. The antenna is a dual band 435/145 MHz 5/8 wavelength whip mounted
on the spacecraft hull exterior adjacent to the main solar panel array.
  Whilst the general VHF communications link frequency for MIR  is  143.625
MHz WB FM, the normally used amateur radio frequency is S.22 (145.550  MHz)
simplex 10 KHz deviation speech and PACKET FM, although specially nominated
channels splitting uplink and downlink may be used for special events.
  MIR is a strong signal, easily heard on any 2m FM receiver equipped  with
simple antennas. To actually work MIR, in theory a  1  watt  hand  held  2m
transceiver would give an adequate signal, but due to the enormous level of
activity heard within  the  spacecraft  footprint  from  MIR's  height,  in
practice a far higher eirp is needed to provide the FM  capture  effect  to
overcome QRM.
  Whilst QSO's have been made from mobile and portable stations on earth at
quiet times or from remote areas, in Europe and other high  S.22  populated
(Continued to next message)
--- Intermail/RA/SX/GE
(1:369/8)
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