AMATEUR SATELLITES NUMBER AND STATUS CONSTANTLY CHANGING

AMATEUR SATELLITE TYPES Analogue FM Single Channel Analog Transponder -SSB/CW Digital Digital and Analog ISS

SATELLITE ORBITS Low Earth Orbit - LEO High Altitude Elliptical Orbit

LEO ORBIT Kilometers Nominal

O High Elliptical Orbit

AMATEUR SATELLITES IN ORBIT OPERATIONAL - 16 SEMI OPERATIONAL - 11

OPERATIONAL SATELLITES 2 ANALOG + DIGITAL 8 ANALOG 6 DIGITAL ISS

ANALOG SATELLITES TRANSPONDER - 8 FM REPEATER - 2

SATELLITE MODES OPERATE CROSS BAND Up on one band - Down on another Analog operation FULL DUPLEX

TRANSPONDERS Receives and retransmits a frequency band eg. RS-12 mode K non inverting Rx to Tx to AO-40 mode U/S inverting Rx to TX to

LEO FM REPEATER SATELLITES UO up / down SO up / down ISS packet up / voice up down

LEO ANALOG TRANSPONDER SATELLITES AO-7 2 m up / 10 m down 70 cm up / 2 m down RS m up / 10 m down RS m up / 2 m down RS-15 2 m up / 10 m down FO-20 2 m up / 70 cm down FO-29 2 m up / 70 cm down

HIGH ORBIT TRANSPONDER SATELLITES AO cm up / 2 m down AO-40 2m or 70 cm or 23 cm up / 13 cm or 1.3 cm down

MY INTEREST HI ORBITERS LARGE FOOTPRINT WORK MOST OF WORLD ( not just W and VE) EASY TO RAGCHEW SEVERAL OPS GET INTO DISCUSSION ON THE SAME FREQUENCY SMALL DOPPLER AND ANT POINTING INCREMENTS

MY FAVOURITE AO-40

AO-40 VERY LARGE ELLIPTICAL ORBIT VERY LARGE FOOTPRINT ONE ORBIT TAKES 19 hrs 6 min CIRCLES AROUND EQUATOR

AO-40 OPERATING FREQUENCIES DOWNLINK S-BAND K-BAND UPLINK U-BAND or L1-BAND or L2-BAND V-BAND

CONSTRAINTS OFF POINTING ANGLE SCHEDULE

O OFF POINTING ANGLE

O 0(256) Mean Anomaly “ MA”

SCHEDULE MA U/L V/L RUDAK U/L BEACON

O 0(256) UL-120-VL-128-RUDAK-160-UL2-200-BEACON-036

VISIBILITY SCHEDULE

LEO SATELLITE EQUIPMENT FM - HT and hand held Arrow ant. TRANSPONDER - 2 m 50w ssb tx / 70 cm low noise preamp and 70 cm ssb rx : az/el rotor, 8 to 12 ft boom 2 m and 70 cm ants.

AO-40 TRANSMIT EQUIPMENT 70 cm up: 50 w ssb/cw into 10 to 12 ft boom, right hand circular antenna

AO-40 RECEIVE EQUIPMENT

MAJOR URL SOURCES AMSAT NA - www://http.amst.org AMSAT DL - www://http.amsat-dl.org AMSAT UK - www://http.uk.amsat.org

AMATEUR SATELLITE EQUIPMENT SUPPLIERS Down East Microwave - SSB Electronics - Hamtronics Inc. - K5GNA - (e-bay)

AMATEUR SATELLITE ANTENNA SUPPLIERS M2 - Arrow Antennas - K5GNA -

AMATEUR SATELLITE WEB PAGES AND INFO K5OE - WB6LLO - http.san.rr.comdoguimont/uploads K1IR- Getting Started with AO AO-40 FAQ -

AMATEUR SATELLITE SOFTWARE

VE3NPC AO - 40 ANTENNA ARRAY