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L Band Receiver
- Fabrication Responsibility:
- Mirek Kasal, OK2AQK
- Size:
- 195x200
- Average Power Dissipation:
- 1 Watt
Abstract
According to the P3D satellite general design, two on-board
receivers have been developed for the uplink on the L-band. The
first one with the central frequency 1268.450 MHz and the second
one with the central frequency 1269.375 MHz. The bandwidth of the
analog passband is about 250 kHz. Because the high-gain (SBF) and
the omni antennas will be applied, the two LNAs directly
connected to the antennas are used for low noise temperature
achievement. The LNA's output signals are coming into the power
divider through the PIN diode switch. Divided signals are coming
into doubleconversion receiver modules. Each receiver has three
signal outputs - IF matrix, CMD unit and RUDAK
unit as well as two telemetry outputs - AGC and TEMP.
Figures:
P3D L-band receivers arrangement
Top view of the hardware
Bottom view of the hardware
Last updated: Jan 16, 1996
by Ralf Zimmermann, DL1FDT