ALL
EFFECTIVITY
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Page 2-6
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
Table 2-2. Modulation Characteristics (Continued)
Multiplier
Modulation
Roll-Off Factor
Root raised
cosine
Symbol Rate
Channel
Bandwidth
Nominated
Bandwidth
2.5
32-QAM
0.13
84 ksym/s
94.92 kHz
100 kHz
5.0
32-QAM
0.13
168 ksym/s
189.8 kHz
200 kHz
2.5
64-QAM
0.13
84 ksym/s
94.92 kHz
100 kHz
5.0
64-QAM
0.13
168 ksym/s
189.8 kHz
200 z
B.
Tx Gain
(1)
The HPA net Tx gain manufacturing tolerance (unit to unit), Tx Input port to Tx Output
port, is 54 dB
±
2 dB under conditions of:
(a)
3 dB input attenuator back-off
(b)
PA ON/OFF control in the ON state.
(c)
Maximum rated carrier output
(d)
Center Tx-band frequency
(e)
Room ambient conditions.
(2)
While the PA function is held in the disabled state the HPA net Tx gain capability, Tx input
port to Tx output port, is < -20 dB under conditions of 0 dB input attenuator back-off.
C.
Tx Frequency Response
(1)
The Tx-band gain tolerance as assessed from the transmit port input to the transmit port
output is less than 1 dB peak to peak under conditions of:
(a)
PA function is enabled
(b)
Any output level as achieved from a corresponding input level under appropriate
input attenuator setting
(c)
Constant temperature.
D.
Tx Gain Stability
(1)
The per unit gain stability for any set level is better than
±
1.5 dB due to combined
variations in temperature and frequency
(2)
The output power stability is within ± 0.5 dB over the burst period excluding the first burst
and the preamble/training period of all subsequent bursts under the following conditions:
(a)
50% On/Off carrier duty cycle
(b)
Burst period of 20 ms.
(c)
Rated output power carrier level
(d)
Carrier is modulated by 64-QAM with the permitted characteristics
(e)
Constant temperature
DRAFT
3rd rvw Draft as of:
29 January, 2020
Содержание 90402651-000
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