CAPE1 will have about a 30-second CW beacon once a minute. There is also a series of about 20 or so 9600 baud “high speed” AX.25 packets at the same interval only shifted by 30 seconds. For example, a series of transmissions may look like this:

Time (in Minutes) 00:00 0:30 1:00 1:30 2:00
Transmission Type CW Beacon1 HS Packets CW Beacon2 HS Packets CW Beacon3

The telemetry of the satellite is split up between the three CW Beacons and the three beacons constitute a “snapshot” of the satellites health. Each HS transmission contains all of the data included in the CW beacons. During low power modes of the satellite, CAPE1 may revert to CW only mode as well as lengthening the time between transmissions to lessen the amplifier duty cycle.

CW Beacon 1: K5USL A BC DE FG HI JK LM NO PQ

Example: K5USL 1 9D B9 B9 B9 07 2F 07 31

ABeacon sequence
BCMPB Voltage, value must be multiplied by 20 (measurement in mV)
DEHPB Voltage, value must be multiplied by 20 (measurement in mV)
FGBattery 1 Voltage, value must be multiplied by 20 (measurement in mV)
HIBattery 2 Voltage, value must be multiplied by 20 (measurement in mV)
JKBattery 1 Current Generated (measurement in tens of mA)
LMBattery 1 Current Absorbed (measurement in tens of mA)
NOBattery 2 Current Generated (measurement in tens of mA)
PQBattery 2 Current Absorbed (measurement in tens of mA)

CW Beacon 2: K5USL A BC DE FG HI JK LM NO PQ RS

Example: K5USL 2 FF FF E2 E0 E1 E1 E0 03 FF

ABeacon sequence
BCBattery 1 Temperature (2’s complement)
DEX+ Temperature (2’s complement)
FGX- Temperature (2’s complement)
HIY+ Temperature (2’s complement)
JKY- Temperature (2’s complement)
LMZ+ Temperature (2’s complement)
NOZ- Temperature (2’s complement)
PQRFamp Temperature (2’s complement)
RSBattery 2 Temperature (2’s complement)

CW Beacon 3: K5USL A BC DE FG HI JK LM

Example: K5USL 3 3E 05 0A 18 01 1D

ABeacon sequence
BCSolar Panel X+ Current, value must be multiplied by 10 (measurement in mA)
DESolar Panel X- Current, value must be multiplied by 10 (measurement in mA)
FGSolar Panel Y+ Current, value must be multiplied by 10 (measurement in mA)
HISolar Panel Y- Current, value must be multiplied by 10 (measurement in mA)
JKSolar Panel Z+ Current, value must be multiplied by 10 (measurement in mA)
LMSolar Panel Z- Current, value must be multiplied by 10 (measurement in mA)

Uplink Commands

OVRANT

OVRT

ANTDEPLOY

FULLTX

HSTX

LSTX

FET3

FET1

FET2

DATETIME

REBOOT

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