Diamond Antenna DP-NR2 Manual de instrucciones - Página 2
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DP-NR2 2M 1/2 Wave Gain Whip Antenna With Omnidirectionally
Tiltable Element Structure. (I.R. 1412570)
Description
●
1. The DP-NR2 is a radialless whip antenna
which works well at temporary
station, with
motorcycle, with
or with handheld transceiver.
2. Stiff 17-7 PH stainless steel is used in
element material
to avoid
vibrations that cause QSB.
3. Despite its rather short, 1.1m (43.3"),
element length, it achieves substantial
gain which is enough to compete with
5/8 wave antennas.
4. Omnidirectionally
tiltabie
ture (I.R.
1412570)
is employed to
avoid troublesome antenna detachment
when a car is parked in a garage.
5. The antenna is designed to go well with
contemporary car design.
Installation Procedure
●
The DP-NR2 can be installed anywhere
on a car with Diamond's gutter or trunk
mount bracket, or rooftop magnetic base.
第一電波工業株式会社 国内事業部 〒350-0022 埼玉県川越市小中居445-1 TEL.049-230-1220（代） FAX.049-230-1223
DIAMOND ANTENNA CORPORATION Miyata Building, No.15-1,1-chome Sugamo,Toshimaku Tokyo,Japan 170-0002 TEL.03-3947-1411 FAX.03-3944-2981
Adjustment Procedure
●
The antenna is factory adjusted at 2 m
band center frequency, so that it can be
fixed
used without any adjustment.
bicycle
If the center frequency of the antenna
has to be changed, it can be altered by
putting whip element in and out at tiltable
unwanted
whip section as follows;
First, loosen two set screws at the top of
tiltable
whip
wrench attached. Then put the element in
and out to get lowest vswr at desired fre-
quency. And fasten these two set screws
whip struc-
with
the wrench
figure for reference.)
Set screws
Hexagonal wrench
ホームページ http://www.diamond-ant.co.jp
section
with
hexagonal
to fix
it. (See below
Whip element
Tiltable whip section
To Tilt the Antenna
●
If the antenna has to be tilted, to park
a car at a garage for instance, it can be
tilted
for any direction simply by pulling
tiltable
whip element up. Be sure not to
drive
with the antenna tilted
purpose.
Notice
●
Fasten set screws after several drives
after
the antenna is installed
especially
if the antenna is brand new,
since they may be loosened by vibrations.
Specifications
●
144 〜 146 MHz
Frequency
Gain
2.15 dBi
Max. Power Rating
200W
Impedance
50 ohms
VSWR
1.5 or less
Length
1.1 m (43.3")
Weight
150 g (0.33 lbs)
Connector
UHF
Type
1/2 wave radialless
whip
for safety
on a car,