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参数资料
| 型号： | AR270 |
| 元件分类： | 天线 |
| 英文描述： | BASE STATION/BROADCAST TRANSMISSION ANTENNA |
| 文件页数： | 1/1页 |
| 文件大小： | 130K |
| 代理商： | AR270 |
COMMUNICATIONS ANTENNAS
DUAL BAND RINGOS & YAGIS
Page 8
Cushcraft is the leader in dual band antennas. Our verticals provide excellent
coverage at a price below the competition. The AR270 and AR270B are
favorites with the AO27 crowd. For increased coverage, our dual band Yagis
lead the way. Both Yagis require only one coax feedline for true dual band
performance.
AR270
3.0 / 5.5 dB Dual
Band Ringo
The "Dual Wonder"
AR270 is only 3.75 feet
(1.1 meters) high. It has
great performance for
its size, making it the
most popular 2m/70 cm
base antenna.
AR270B 5.5/7.5 dB Dual Band Ringo
This model gives very high gain with a low angle of radiation and it is only 7.7 feet
(2.35 m) high. The AR270B is computer optimized with two 5/8 wavelength collinear
elements on 2 meters and four 5/8 wavelength elements on 70 cm. It is broadbanded
for minimum SWR on both bands. It is easy to assemble with three rugged aluminum
tubing sections, a durable mast mount and factory sealed coils for best performance.
A27010S and A2706S
10 and 7.8 dB Dual Band Yagis
Increase your range by selecting one of the new Cushcraft dual band Yagis on
2 meters and 70 cm. You can point the antenna at stations while you are in QSO with
them. This will direct more of your output power when transmitting at the same time
reducing interference and increasing signal strength when receiving. These antennas
are perfect for packet applications. Assembly is a snap with our fully illustrated
assembly manuals.
AR270B
AR270
MODEL
AR270
AR270B
Frequency, MHz
144-148
430-450 144-148 430-450
SWR 1.2:1 Typical
2:1 Bandwidth, MHz
>4
>15
>4
>15
Gain, dBi
3.0
5.5
7.5
Power, Watts FM
250
Horizontal Radiation
Pattern, Degrees
360
Height, ft, (m)
3.75 (1.13)
7.7 (2.3)
Mast Size Range, in
1.25-2 (3.2-5.1)
Radial Length, in (cm)
6.75 (17.1)
Wind Load, ft2 (m2)
0.27 (0.03)
0.47 (0.044)
Weight, lb (kg)
2 (0.9)
2.4 (1.09)
A2706S
MODEL
A27010S
A2706S
Frequency, MHZ
144-148 430-450
144-148
430-450
No. Elements
5
3
Forward Gain, dBi
10
7.8
Front to Back Ratio, dB
20
18
20
18
SWR 1.2:1 Typical
2:1 Bandwidth, MHz
≥4
≥10
≥4
≥20
Power Rating, Watts PEP
350
3dB Beamwidth, Degrees
E Plane
52
66
H Plane
60
108
Boom Length, ft (m)
6.17 (1.9)
2.8 (.85)
Longest Element, in (cm)
40.3 (102.4)
41 (104.1)
Turning Radius, ft (m)
6 (1.8)
2.8 (.85)
Mast Size Range, in (cm)
1.25-2
(3.2-5.1)
Wind Load, ft2 (m2)
.725 (.07)
.3 (.02)
Weight, lb (kg)
1.8 (.81)
1.7 (.8)
70 CM, 2 Meters
Cushcraft pioneered dual band
side-by-side Yagis.
The
harmonic relationship of 2 meters
and 70 cm allow clean radiation
patterns with minimal interaction.
A27010S
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