[amsat-bb] Re: BEESAT

Mike Rupprecht mail at mike-rupprecht.de
Mon Aug 23 06:30:39 PDT 2010

Hi Enzo,

BeeSat has two CMX909B modems (CML) onboard. The data formats is MOBITEX,
not AX.25 !
The CMX909B is a half-duplex Gaussian Minimum Shift Keyed (GMSK) BT = 0.3
modem data pump with on-chip packet data handling. GMSK modulation optimizes
the data throughput for a given bandwidth RF channel and the on-chip packet
data handling relieves the host µC of regular processing tasks, such as
maintaining Bit and Frame Synch, Block Formatting, CRC and FEC Error
Processing, Data Interleaving and Scrambling. 

I assume you don't have such a modem.

BEESat is only active on request of the ground station in Berlin. There is
no CW beacon.

73, Mike

-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Vincenzo Mone
Sent: Monday, August 23, 2010 2:38 PM
To: Amsat - BBs
Subject: [amsat-bb] BEESAT

Hi folks,
i would like to know what do i need to listen the BEESAT bird.

73 de Enzo IK8OZV
EasyLog 5 BetaTester
EasyLog PDA BetaTester
WinBollet BetaTester
D.C.I. CheckPoint Regione Campania
Skype: ik8ozv8520

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