MASter of PROduction
2K56-470
LA
(N
) .17-
5470
-2C
JUL., 2011
0094-11-2895584
0094-11-2855572
30˚
0
˚
3dB
10dB
20dB
Beam Width
Half Power
0˚
180˚
30˚
150˚
150˚
3dB
3dB
10dB
10dB
20dB
20dB
Beam Width
Half Power
30˚
30˚
Performance
All graphs are produced using MASPRO's original,
fully-automatic antenna measuring device.
MASPRO's performance data is obtained with
painstaking honesty and is completely reliable.
MASPRO guarantees the accuracy of its performance
data.
Directivity
Half Power Beam Width
The narrower the beam width,
¡
The less likely it is that the antenna
will genarate interference through re-
flected signals from the front.
¡
The higher the actual gain produced.
Front-to-Back Ratio
Front-to-back ratio is the ratio of the
forward and backward sensitivity in dB.
The larger the front-to-back ratio, the
less likely it is that the antenna will
genarate interference through reflected
signals from the back.
Reception Channels
Items
Number of Elements
Impedance
Gain
VSWR (Voltage Standing Wave Ratio)
Front-to-Back Ratio
Adaptable Mast Diameter
E ch.5 - 12
A ch.7 - 13
C ch.6 - 12
E ch.21 - 58
A ch.14 - 63
C ch.13 - 45
Specification
75
Ω
1
2 - 1dB
―
1030
（
L
）
×
650
（
W
）
×
250
（
H
）
mm
4.5 or less
22 - 38.1mm
Dimensions
Approx. 660g
Weight
Half Power Beam Width
65 - 90˚
Specifications
Directivity is indicated by front-to-back
ratio and beam width.
14
4.5 - 9dB
10 - 20dB
3.5 or less
25 - 65˚
E ch. 40
Half Power
Beam Width
46˚
E ch. 9
Half Power
Beam Width
80˚
5
4
3
2
1
25
20
15
10
5
0
470
dB
dB
dB
Front-to-Back Ratio
VSWR
Gain
E ch.
A ch.
C ch.
174
167
230MHz
5 6 7 8 9 10 11 12
E ch.
A ch.
C ch.
774MHz
774
770
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
13
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
Specifications and external design are subject
to change for further improvements.
12
10
8
6
4
2
0
2
4
167
223
7 8
6
9 10 11 12
7 8 9 10 111213
4
