Tx In-Band (L-Band) Performance; Modulation Characteristics - Honeywell ASPIRE-400 System Description, Installation And Maintenance Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
Tx Type
Tx RF Rated Output
Power
Tx RF Output Dynamic
Range
5.

Tx In-band (L-band) Performance

A.

Modulation Characteristics

(1) For purposes of the following sections the following definition of Tx carriers apply:
(a)
(b)
(c)
(d)
(e)
(2) The modulation characteristics for the applicable bearer type are shown in Table 2-2
where Channel Bandwidth is the Necessary Bandwidth.
Multiplier
Modulation
0.5 Pi/4 QPSK
1.0
Pi/4 QPSK
2.0 Pi/4 QPSK
4.5 Pi/4 QPSK
1.0 16-QAM
2.0
16-QAM
2.5
16-QAM
4.5 16-QAM
5.0 16-QAM
EFFECTIVITY
ALL
© Honeywell International Inc. Do not copy without express permission of Honeywell.
ASPIRE-400
Table 2-1. Tx RF Input/Output (Continued)
Description
The HPA is capable of providing 64-
QAM maximum carrier-rated average
power.
When the PA function is enabled the achievable average
power in the presence of 64- QAM modulated carrier(s)
ranges from:
Reference signal generator will be set for the following setup conditions:
Data Source: PN
Repeat: Continuous
Phase Polarity: Normal
Differential Data Encoding: Off
Table 2-2. Modulation Characteristics
Roll-Off Factor
Root raised
cosine
0.25
0.25
0.25
0.25
0.25
0.25
0.13
0.25
0.13
Tx Output port
HPA Output port
to Antenna RF
port
Channel
Symbol Rate
Bandwidth
16.8 ksym/s 21 kHz
42 kHz
33.6 ksym/s
67.2 ksym/s 84 kHz
151.2 ksym/s 189 kHz
33.6 ksym/s 42 kHz
67.2 ksym/s 84 kHz
94.92 kHz
84 ksym/s
151.2 ksym/s 189 kHz
168 ksym/s 189.8 kHz
23-15-49
3rd rvw Draft as of:
29 January, 2020
dB(s)
+42.5 dBm +0.5
dB/-0 dB into a 50Î
Ω load
system loss of
2.5dB
+23 dBm to +46
dBm
Nominated
Bandwidth
25 kHz
50 kHz
100 kHz
200 kHz
50 kHz
100 kHz
100 kHz
200 kHz
200 kHz
Page 2-5
22 Apr 2019