Appendix a ltt1450g technical specifications – Comtech EF Data LTT1450G User Manual
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LTT1450G Ku-Band Loop Test Translator
Technical Specifications
TM063 - Rev. 1
A-1
Appendix A
LTT1450G Technical Specifications
A.1
Introduction
Performance Specifications for the Model LTT1450G Ku-Band Loop Test Translator are as follows:
Input Frequency….......................................... 14.00 to 14.50 GHz
Output Frequency…....................................... 10.95 to 12.75 GHz in the following bands:
Plan A
Local Osc. Plan B
Local Osc. Plan C LO
DOMESTIC
11.7 - 12.2 GHz
2.30 GHz Same
2.3 GHz
INTELSAT LB
10.95 - 11.20 GHz
3.05 GHz 10.95-11.45 GHz
3.05 GHz 3.05 GHz
INTELSAT HB
11.45 - 11.7 GHz
2.80 GHz 11.45-11.95 GHz 2.55 GHz 2.8 GHz
AUSAT/EUTELSAT
12.25 - 12.75 GHz
1.75 GHz Same
1.5 GHz
Input/Output Return Loss.......................... >18 dB
Conversion Gain....................................... -15 dB to -54 dB Continuously Variable
(0-39 dB Attenuation Standard)
-15 to to -74 dB (0-59 dB attenuation with Option 02)
Gain Ripple...............................................
±
-1.0 dB/500 MHz
±
0.20 dB/36 MHz
Input 1 dB Compression............................ +7 dBm minimum
Third Order Intercept................................. +18 dBm minimum
Image Rejection......................................... 65 dB minimum
Input to Output Isolation............................ 40 dB minimum, 60 dB typical
Group Delay Distortion:
Linear ................................................. <0.010 nanoseconds/MHz
Parabolic.............................................. <0 .0002 nanoseconds/MHz
2
Ripple ................................................. <1.5 nanoseconds p-p
Spurious (in selected band)
Input Signal Related ................................ <-60 dBc
LO Related .............................................. <-85 dBm
LO harmonics (out of selected band)........ -50 dBm @ 0 dB attenuation
Phase Noise: (Maximums all LOs)
10 HZ offset.........................................
-58 dBc
100 Hz offset........................................
-72 dBc
1 KHz offset.......................................
-96 dBc
10 KHz offset......................................
-105 dBc
100 KHz offset.....................................
-110 dBc