ApexRadio 700DTA
Desk Top Antenna
Medium-Wave, Short Wave high performance
Desk-Top active Antenna, usable range 500kHz - 30MHz
The 700DTA is a compact active antenna specifically designed to provide
good reception when large external antennas are not practical or when away
from the main monitoring location. Compact, but achieving high
performance, featuring an internal band selector, Hi-Q manual tuning circuit,
and high gain amplifier (20dB for 500kHz-30MHz). And also excellent overall
strong signal handling. The 700DTA is completely battery drive equipment
separated from noisy AC power line. Then, 700DTA can be used as a
portable receiving antenna. Upon unpacking, take time to locate and
familiarize yourself with items described in the following table.
Contents product
Qty.
Main unit of 700DTA
(aluminum die-casting case)
1
Whip antenna element (telescopic approx. 15 – 60 cm)
1
Battery for built-in power supply
(9V : 6F22, MN1604, J)
1
BNC-BNC coaxial cable 3m
1
Preparations and setting
The power of 700DTA is supplied by a built-in battery. A built-in battery is
installed before using 700DTA. Refer to "BATTERY EXCHANGE" written on
the back side of this instruction sheet for the mounting a battery. Be careful
to injuries with the tools.
Settle the 700DTA on the stable place. It’s desirable to set up this antenna at
the window side. Particularly, 700DTA performance cannot be shown
enough in the building of the steel reinforced concrete. 700DTA is indoor use
only, and it is not water resistance. The water wet and the dew condensation
cause trouble and the damage.
Do not leave the 700DTA in direct sunlight. It is best to avoid locations
where excessive heat, humidity, dust and vibration are expected. Always
keep the 700DTA free from dust and moisture. Use a soft, dry cloth to gently
wipe the set clean, never use abrasive cleaners or organic solvents which
may damage certain parts.
Controls & functions
Controls are located on the front with connection sockets on the rear and top
of the 700DTA, a brief identification is given here:
No. Name
Description
1. Power
switch
Toggle-type switch. To turn on this antenna, throw
the lever to upper position.
2
Power indicator
Light on when power switch is ON position
3
Band selection knob
Select band for desired frequency range
4.
Tuning knob
Tuning knob for peak signal strength
5
Antenna element socket
Socket for telescopic antenna element
(High-impedance, BNC jack)
6
Signal output socket
Output socket to radio receiver (50 ohms, BNC jack)
