Phoenix2

1
ARGOS receiver 1GHz 2GHz ? 0.1MHz1GHz
Components panel
Front panel
Back panel and connectors
2
Overview Digital FFT Radio-Spektrograf
1. IF-filter 8,500GHz B3dB-500MHz1GHz -1dB
IF-isolator -0,7dB
2. IF amplifier 0.1MHz...1GHz
RF-amplifier / equalizer
1. mixer
2. mixer
1. IF-amplfier 8-12,4GHz
-6dB
-6dB
N/SMA
att -3dB
Frf
26dB min NFlt5dB
RF
IF
IF
RF
15dB
BPF
41dB
att -3dB
IF1
LO
LO
15V
15V
6dBm-3dBm 10MHz Ref. Input
15V
Synthesizer- isolator
LO-isolator
IF-isolator -0,7dB
Video out N/SMA
SMA- bridge
Aircable from antenna-tower to receiver -10dB _at_
1,415GHz
IF2
Power Divider -6dB
SMA- bridge
Log. Detector
15V
15V
Fsy
Flo
5.0V
Localoscillator 1 10,000GHz 13dBm min
Localoscillator 2 9,000GHz 13dBm min
Lowpassfilter F3dB1GHz a-1dB
Power Divider -6dB
Level 104dB
IF2IF1-Flo IF1Fsy-Frf FrfFsy-IF2-Flo IF2Fsy-Fl
o-Frf
ADC 8bit 2Gs/sec
PC FFT
RX3 N/SMA DSP
Astronomical Institute ETHZ
Created by Chr. Monstein , 13.12.1999
Updated by Chr. Monstein, 21.05.2004
File RX1GHz.ppt
Revision 1.5
3
Frequency diagram
1. Localoscillator LO1 10,000 GHz
Upper sideband USB will not be used
Power
Selection of lower sideband LSB by bandpassfilter
1. mixer stage
F1 LO1 Frf 8,500 GHz 500 MHz
Frequency
Fh2,0 GHz
Frf 1,5 GHz
Fl1,0 GHz
F1h9,00GHz
F1z8,50GHz
F1l8,00GHz
Power
2. mixer stage
2. Localoscillator LO2 9,000 GHz
Selection with lowpassfilter
F2 F1 - LO2 500 MHz 500 MHz
Frequency
F2h 1000 MHz
F2l 0.1 MHz
4
ARGOS receiver as a frontend to CALLISTO
radio-spectrometer
Input freqeuncy
ARGOS baseband 0.1MHz1GHz received by CALLISTO
which accepts 45MHz870MHz