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XTD-750K, 12.75 - 14.5, L01
Document No. 305-0391-032 REV 4 Page 2 of 10
1.0 SCOPE. This specification is for a high power amplifier (TWTA) to be used in a satellite
ground station. The HPA is designed to operate outdoors.
2.0 APPLICABLE DOCUMENTS
3.0 SPECIFICATION. The HPA shall be designed to the requirements of this specification per
the performance specifications of section 3.0 and tested to the ATP requirements of section
5.1 of this document
3.1 ELECTRICAL
3.1.1 Frequency 12.75 to 14.50 GHz
3.1.2 Power
3.1.2.1 RF Output Power (P
rated
) 650 W (58.1 dBm) min
Reference: TWT power of 750 W (58.8 dBm) min
3.1.2.2 Reflected Power Protection P
rated
–7 ± 0.5 dB
3.1.3 Gain, Large Signal 70 dB min
3.1.4 Gain, Small Signal 70 dB min
3.1.5 Gain variation, SSG
3.1.5.1 Over any 80 MHz band 1.0 dB/80 MHz max
3.1.5.2 Over any 500 MHz band 2.5 dB/500 MHz max
3.1.5.3 Gain slope ± 0.04 dB/MHz max
3.1.5.4 Gain stability over temperature 2.0 dB@any frequency
3.1.5.5 Gain stability over Time 0.5 dB/24 hrs
3.1.6 Gain Control 25 dB min
3.1.7 Intermodulation with 2
equal carriers at TOPBO = P
rated
-4 dB -25 dBc max
3.1.8 Harmonic Output -60 dBc max
3.1.9 AM to PM conversion 2.5 deg/dB at 6 dB below
rated power max
EAR EXPORT CONTROLLED: The information contained in this Manual refers or relates to a product that is subject
to the U.S. Export Administration Regulations (EAR). Transfer of data herein by any means to a Foreign Person,
whether in the U.S. or abroad, may require an export license from the U.S. Department of Commerce.
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