COBHAM VEPA-2W, Operation Manual, Page: 8 / 21

100-M0167X2 8 of 21
GMS Inc. doing business as Cobham Tactical Communications and Surveillance www.cobham.com/tcs
Table 3 – Frequency Specific Specifications:
Parameter Specification
Frequency (GHz) 1.4 - 1.6 1.7 - 1.85 1.7 - 2.4 1.99 - 2.5 2.2 - 2.4 2.2 - 2.7 4.4 – 5.0
Frequency Band LD L2 W7 S2 S1 SK C2
HIGH EFFICIENCY
MODE
1
:
MIN AVERAGE MAX MIN AVERAGE MAX MIN AVERAGE MAX MIN AVERAGE MAX MIN AVERAGE MAX MIN AVERAGE MAX MIN AVERAGE MAX
Liner Gain (dB) 29.0 30.3 31.7 29.8 30.6 31.1 28.5 29.7 30.8 29.0 30.2 30.9 29.8 30.5 30.9 29.2 30.5 31.6 29.3 30.7 32.8
Flatness (dB)
+/- 1.3 +/- 1.5 +/- 0.7 +/- 0.8 +/- 1.2
+/-
1.4
+/- 1.0 +/- 1.1 +/- 0.5 +/-0.6 +/- 1.2 +/- 1.3 +/- 1.3 +/- 1.6
Current @12 Vdc on
50 Load (A)
1.06 1.15 0.96 1.04 1.1 1.28 1.04 1.17 1.0 1.08 0.97 1.01 1.07 1.11
MER (dB)
2
21.7 28.0 25.3 26.9 19.3 21.9 21.0 23.0 22.2 23.4 19.7 22.8 22.6 25.1
EVM (%)
3
4.0 8.2 4.5 5.4 8.0 10.8 7.1 8.9 6.8 7.8 7.2 10.4 5.5 7.4
ACPR (-dB) 22.5 29.0 26.2 27.8 20.1 22.7 21.8 23.9 23.0 24.3 20.5 23.6 27 29.5
HIGH LINEARITY MODE
1
: MIN AVERAGE MAX MIN AVERAGE MAX MIN AVERAGE MAX MIN AVERAGE MAX MIN AVERAGE MAX MIN AVERAGE MAX MIN AVERAGE MAX
Liner Gain (dB) 28.7 30.1 31.8 29.4 30.6 31.6 28.7 30.2 31.5 29.7 31.0 31.8 30.8 31.3 31.8 29.2 31 32.5 30.8 32.3 34.3
Flatness (dB) +/- 1.2 +/- 1.4 +/- 0.6 +/- 0.7 +/- 1.1
+/-
1.2
+/- 0.8 +/- 0.9 +/- 0.5
+/-
0.6
+/- 1.0 +/- 1.1 +/- 1.4 +/- 1.7
Current @12 Vdc on
50 Ω Load (A)
1.33 1.44 1.18 1.28 1.32 1.52 1.25 1.4 1.2 1.3 1.15 1.22 1.32 1.39
MER (dB)
2
27.3 29.9 29.1 30.5 25.2 26.2 26.0 27.2 26.5 27.2 24.6 26.7 26.3 28.7
EVM (%)
3
3.2 4.3 3.0 3.5 4.9 5.5 4.4 5.0 4.4 4.7 4.6 5.9 3.7 4.8
ACPR (-dB) 28.5 31.0 30.0 32.1 26.2 27.3 27.1 28.5 27.3 28.5 25.5 27.8 30.5 33
Input RL (dB) -25 -20 -20 -14 -14.7 -9.6 -12.3 -9.6 -12.3 -9.6 -16 -10.5 -13 -12
Output RL (dB) -17 -12 -17 -12 -17.3 -9.6 -15.5 -10 -15.5 -10 -15.8 -10 -19 -15
Harmonic (dBm /MHz) -29 -25 -35 -29 -37 -24 -40 -31 -45 -37 -40 -32 -34 -23
Gain Change (dB) (Over
Temperature -20 to 70 °C
+/- 0.25 +/- 0.5 +/- 0.25 +/- 0.5 +/- 0.25
+/-
0.5
+/- 0.25 +/- 0.5 +/- 0.25
+/-
0.5
+/- 0.25 +/- 0.5 +/- 1.25 +/- 1.5
Standby Current @ 12 Vdc
(A) (PA_ENABLE = 0V)
0.11 0.12 0.11 0.12 0.11 0.12 0.11 0.12 0.11 0.12 0.11 0.12 0.08 0.12
Switching Speed T
ON
(ns) 90 100 90 100 90 100 90 100 90 100 90 100 150 160
Switching Speed T
OFF
(ns)
40 50 40 50 40 50 40 50 40 50 40 50 100 110
RF Isolation (PA_ENABLE
= 0Vdc) (dB)
65 70 65 70 65 70 65 70 65 70 65 70 65 70
Notes:
1.
Measurements performed at 2 W output power (33 dBm), PA_ENABLE = 3.0Vdc
2.
MER measurements were performed using a Rhode & Schwartz EFA Test RCVR mod 2067 in Stationary mode. DVB-T test signal generated with an Agilent MXG Vector Signal Generator.
3.
EVM specification valid for QPSK modulation only.