Nera Evolution Series - Radio Characteristics; Transmitter Characteristics

NGP\00329 Rev. C 23-06-2006 Evolution Series - XPAND 27
5. RADIO CHARACTERISTICS
5.1. Transmitter Characteristics
5.1.1. Nominal Output Power
The tolerance is ± 1.5 dB for 6-11 GHz and ± 2 dB for 13-38 GHz. For RF-Coupler loss see chapter 5.5.2.
Typical values measured with modulation (PRBS-data). Ref. Point C’. [dBm]
Frequency band: [GHz]
L6 U6 7 8 11 13/15 18 23 26 32 38
4xE1@7MHz (QPSK) +30 +30 +29 +29 +28 +25 +22 +22 +21.5 +21 +20.5
8xE1@7MHz (16State) +28 +28 +27 +27 +26 +23 +20 +20 +19.5 +19 +18.5
8xE1@14MHz (QPSK) +30 +30 +29 +29 +28 +25 +22 +22 +21.5 +21 +20.5
16xE1@14MHz (16State) +28 +28 +27 +27 +26 +23 +20 +20 +19.5 +19 +18.5
16xE1@28MHz (QPSK) +30 +30 +29 +29 +28 +25 +22 +22 +21.5 +21 +20.5
20xE1@14MHz (16State) +28 +28 +27 +27 +26 +23 +20 +20 +19.5 +19 +18.5
40xE1@28MHz (16State) +27 +27 +26 +26 +25 +22 +19 +19 +18.5 +18 +17.5
50xE1@28MHz (32State) +26 +26 +25 +25 +24 +21 +18 +18 +17.5 +17 +16.5
75xE1@28MHz (128State) +25 +25 +24 +24 +23 +18 +17 +17 +16.5 +16 +15.5
Table 5-1 Nominal output power
5.1.2. Automatic/Manual Power Control (ATPC/MTPC)
ATPC is an optional feature, which is aimed to drive the TX power amplifier output level from a proper
minimum, which is calculated to facilitate the radio network planning and is used in the case of normal
propagation, up to a maximum value, which is given in Chapter 3.3.1. When ATPC is disabled (i.e.
MTPC mode), the output power can be set by the user.
ATPC-figures:
Transmitter power output regulation speed > 50 dB/s
ATPC-range 20 dB
Nominal input level is adjustable by the user.
Adjustment range: -30 dBm to -60 dBm
In Hot Standby configuration it is recommended to use simultaneous switching of TX and Rx side within
a terminal, when ATPC is enabled.
MTPC figures:
MTPC range: 15 dB
1
Step size: 0.1 dB
Accuracy: See output power tolerance in Chapter 5.1.1
1
For compliance to optional ETSI mask requirement of -60 dBc in frequency bands from 3GHz to 8GHz, the
MTPC range is 10 dB.