Diamond Antenna BB2M Operation Instructions

7-30MHz / 50MHz WIDE BAND MOBILE ANTENNA
【3-100MHz Receiving only】
BB2M
Fold over whip element structure
Operation Instructions
To use the antenna properly, read these instructions
thoroughly before using it. Keep this manual carefully
at hand for later use.
BB2M is for amateur use. Please transmit on the armature bands.
Warning
To avoid inviting accidents, please follow the following
notices.
①Nuts and screws can be loosened by vibration during
driving. Be sure to check those fastening devices from
time to time and refasten if necessary.
②Strong impact can cause to break the antenna and may
invite accidents by falling the element. It is
recommended to drive away from those obstacles such
as branches.
③Strong vibrations caused by diesel engines may damage
the antenna. It is recommended to install the antenna at
the location where has least vibrations as possible.
④Touching the antenna during transmission may cause to
electrify. Be sure to confirm to see if there is no one
around the antenna if transmission is taking place while
the car is parked.
⑤Don't drive a car with the antenna tilted. Driving the car
with the antenna tilted may cause serious human
accident.
⑥To install the antenna, be sure to take those things such
as local traffic regulations, and physical length of the car
in account, and especially it has to be installed the
location where is not easily reachable by people.
⑦SWR of the BB2M is less than 2.0 because BB2M is
designed as wide band. When transmitting, use the
antenna tuner and adjust the SWR less than 1.5. SWR
could be changed depending on the installation situation.
⑧If the thunder seems to rumbling the vicinity, do not
touch the antenna and coaxial cable to avoid
electrocuted by lightning.
Description
①BB2M is designed as wide band. It can be used on
7-30MHz/50MHz.
②Cumbersome adjustment the frequency is not necessary.
(Using with the antenna turner is necessary)
Notice
Be sure to watch out for coaxial cable wiring, since outside
water is most likely to enter through the wiring.
Don't attach the antenna, bracket and coaxial cables close
to the car cables or other electrical parts; otherwise,
fatal accident should happen.
・ Parts
The unit is consisted of the antenna following parts.
Hexagonal wrench for M4
(M30005)
Operation Instructions
Upper element
(M30001)
Set Screw (M4x4)
(M30004)
Lower element
(with Joint)
(M30002)
Set Screw (M4x4)
(M30004)
Matching section
(Omni directionally tiltable
whip section)
(M30003)