AMSAT ECHO

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10-day predictions
AMSAT ECHO is classified as:

Amateur radio

NORAD ID: 28375

Int'l Code: 2004-025K

Perigee: 700.7 km

Apogee: 817.5 km

Inclination: 98.4 °

Period: 99.9 minutes

Semi major axis: 7130 km

RCS: 0.081 m² (small)

Launch date: June 29, 2004
Source: United States (US)
Launch site: TYURATAM MISSILE AND SPACE COMPLEX (TTMTR)

Uplink (MHz): 145.920
Downlink (MHz): 435.300
Beacon (MHz): 435.150
Mode: FM_tone 67.0Hz
Call sign:
Status: Inactive

Uplink (MHz): 145.860/145.880
Downlink (MHz): 2401.200
Beacon (MHz): 435.150
Mode: 9600bps FSK
Call sign: PECHO-11 -12
Status: Inactive

Uplink (MHz): 1268.700
Downlink (MHz): 435.150
Beacon (MHz):
Mode: 9600bps FSK
Call sign: PACB-11 -12
Status: Inactive

Amsat-Echo, also known as AMSAT Oscar-E or AO-51, is an American amateur communications microsatellite satellite (10 kg) that relays amateur transmissions. AO-51 contains an FM repeater with both a 144 MHz and 1.2 GHz uplink and 435 MHz and 2.4 GHz downlinks. Additionally AO-51 contains a digital subsystem that transmits TLM on 70cm and provides complete PACSAT BBS that can be configured on both V and S band uplinks. There is also a 10 meter PSK uplink.