feb 04

D-Star ONE Phoenix, Eerste D-Star Communication Spacecraft, gelanceerd

A Soyuz rocket launched D-Star ONE Phoenix and 10 other satellites into orbit on February 1 from Vostochny Cosmodrome in Russia. Developed by German Orbital Systems in Berlin in cooperation with the Czech company iSky Technology, D-Star ONE Phoenix carries an Amateur Radio relay payload (call sign DP1GOS). It replaces the D-Star ONE nanosatellite that failed to attain orbit following a November Soyuz launch from Vostochny.

Downlink frequencies are 435.700 MHz for telemetry and 435.525 MHz for D-Star. The uplink is 437.325 MHz.

D-Star ONE Phoenix is a 3U CubeSat equipped with four identical radio modules with D-Star capability, operating in half-duplex mode with a power output of 800 mW. The two telemetry and telecommand modules both receive, and both in sequence, so each telemetry frame is repeated. The other two modules are dedicated to Amateur Radio, although only one will operate at a time.

The modules are configured to work as D-Star repeaters, so they retransmit received D-Star frames on the downlink frequency. They also have a D-Star voice beacon. — Thanks to AMSAT News Service, D-Star ONE

feb 03

DMR828 2W Digital walkie talkie module

Meer informatie vind je hier!
Dit product is ook via AliExpress verkrijgbaar!

1. Descriptions

DMR828 is a 2W long distance all-in-one DMR walkie talkie module. Only need external power supply and speaker, it is easy to become a professional digital walkie talkie. Simplified interface and Ultra small size make this module widely used in various applications and conveniently embedded into various handheld device.

2. Features

UHF band frequency:400~470 MHZ
Distance up to 8Km
Max power output to 2W,
low power to 0.5W
High Sensitivity:-124dBm
Bit error rate down to 1% under -121dBm
Independent frequency for Tx and Rx
Bandwidth: 12.5 / 25 KH
Voice and text messages communication
Reminder for input calling, calling status checking
DMR /Analog walkie talkie
Message transmission and reception
Built-in EEPROM, data saved even powered off
1ppm TCXO crystal
9 adjustable volume
Enhanced encryption of Voice and Text message