Oscar Echo

Also called AO-51, Amsat Oscar-E, Amsat Echo

---

General

Designation	28375 / 04025K
Launch date	29 Jun 2004
Country of origin	United States
Mission	Telecommunications
Perigee/Apogee	700 km
Inclination	98.3°
Period	99 min
Launch vehicle	Dnepr #4

---

External resources

sat-index articles

http://www.amsat.org/amsat-new/echo/

Technical data

---

---

Specifications

Prime contractor
Platform
Mass at launch	12 kg
Mass in orbit
Dimension	25.4 cm cube
Solar array
Stabilization
DC power
Design lifetime

FM voice repeater: 145.920 MHz uplink, 435.225 MHz downlink
Digital mode: 9600 baud, 145.860 MHz uplink; 435.150 MHz downlink

Experimantal modes are scheduled each Wednesday. Many modes are supported.

The satellited as 4 VHF receivers, 1 multi-band multi-mode receiver (SQRX), 2 UHF transmitters, 6 demodulators and 2 modulators and RF switching.

---