SB SPACE @ ARRL $ARLS063
ARLS063 OSCAR 20 schedule change
QST de W1AW
Space Bulletin 063  ARLS063
From ARRL Headquarters
Newington, CT  November 5, 1993
To all radio amateurs

Oscar 20 schedule change

Effective December 1, 1993, the Fuji-OSCAR 20 satellite will change
its digital/analog operating schedule.  At present, the satellite
functions as a packet BBS every day except Wednesday when it
switches to the analog transponder (CW/SSB) mode for approximately
24 hours.

Beginning December 1 at 0843 UTC, OSCAR 20 will be switched to the
analog mode (Mode JA) where it will remain for one week.  On
December 11 at 0751 UTC, it will be switched back to the digital BBS
mode (Mode JD) for one week.  The modes will continue to alternate
on a weekly basis until further notice.

The December schedule is as follows:

Mode JA--Analog: 12/1 at 0843 UTC through 12/8 at 0716 UTC

Mode JD--Digital: 12/8 at 0716 UTC through 12/15 at 0741 UTC

Mode JA--Analog: 12/15 at 0741 UTC through 12/22 at 0805 UTC

Mode JD--Digital: 12/22 at 0805 UTC through 12/29 at 0830 UTC
(approx)


OSCAR 20 Frequencies

Digital Uplink: 145.85, .87, .89, .91 MHz
Digital Downlink: 435.910 MHz

Analog Uplink: 145.90--146.00 MHz
Analog Downlink: 435.80--435.90 MHz

The analog transponder inverts uplinked signals.  LSB on the uplink
becomes USB on the downlink.  A signal in the lower portion of the
uplink passband appears in the upper portion of the downlink
passband.  For more information, see the September QST, p 104.

The decision to change the schedule was made by Toshiyuki Kondoh,
JR1NVU, who is in charge of OSCAR 20 operations.  By providing a
full week of analog transponder time, the OSCAR 20 team hopes to
encourage more hams to use this mode.

The Japan Amateur Radio League offers a ''Fuji Award'' to any amateur
making at least 10 contacts via OSCAR 20 Mode JA.  More details
about the award will be relayed as they become available.

Our thanks to Fujio Yamashita, JS1UKR, for providing this
information.
/EX
