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FEATURES
Ultra-wide reception range 10kHz 〜 500MHz. Four band selectable
between 150kHz 〜 30MHz and precisely tunable for best receiving
experience. Sharp alignment
Exceptional 20dB gain thanks to built-in low noise amplifier.
Shield loop antennas have the advantage, over non shielded ones, to
be very robust against local noise from electrical devices such as
televisions, PCs, fluorescent lightening, switching power supplies, etc...
Remote tuning – Unlike previous amplified indoor loop antennas, the
band switching and fine tuning controls are not tied anymore to the loop
element. With these controls now on the control box and by using the
optional LA400-RCK extension cables, it is now possible to tune the
antenna while the loop element is setup at the most reception friendly
location possible (window, covered balcony, etc...). Compatible with 3
party cables. Maximum length: 20m.
A relay system is used for band switching, providing excellent isolation
characteristics. The relay is efficiently placed inside the loop element,
while you can operate it through the control box via the control cable.
Electronic tuning from 150kHz〜30MHz allows very sharp tuning to
the desired frequency. Shift the aligning point slightly to attenuate
unwanted signals while amplifying the wanted signal.
Any type of receiver - LA400 can accommodate not only any kind of
communications receiver between 10kHz and 500MHz, but also your
beloved antique vacuum tube receivers, especially with option MC-600
described on the right side. Can also be used as an antenna for portable
FM radios, while improving tuner performance (selectivity).
characteristics by electronic tuning.
SPECIFICATIONS
LA400 Magnetic loop antenna
Frequency range
10kHz 〜 500MHz
Aligned range
150kHz 〜 30MHz
Unaligned range
10kHz 〜 150kHz, 30MHz 〜 500MHz
Gain
20dB min.
Operating temp.
-10℃ 〜 +60℃
Power req.
9〜15V DC, 80mA @ 12VDC
(Min. voltage 12V when using an extension)
Impedance
50Ω
Loop
Sizes (mm)
Loop element
projections incl.
Control box
All assembled
Loop element
Weight
Control box
Control cable (LAN type) 30cm
Supplied
AC power supply
accessories
BNC (F)/BNC (F) RG-58U coaxial cable (1m)
Printed user manual
LA400 is NOT intended for transmit purposes!
Not waterproof, use only indoors.
OPTIONAL ACCESSORIES
LA400-RCK Extension cables (10m each)
This set of cables allows you to separate the control (tuning) box from the
loop element, by up to 10m. Conveniently place the loop element as closely
as possible to an open space, such as window, covered balcony, etc...away
from local electrical noise, for a quieter reception experience.
10m control cable of
LAN type
MC-600 Impedance matching transformer
Passive impedance matching transformer interface which allows your LA400
to be connected to any antique receiver with a 600Ω antenna terminal.
Supported frequency range: 10kHz to 30MHz. MC-600 has the same
rd
isolation feature than the GT-1 accessory described below.
GT-1 Galvanic isolation transformer
To be connected between the receiver and the LA400 antenna. Does greatly
reduce local noise by breaking the ground loop effect between antenna and
receiver, especially when the LA400-RCK 10m separation cables are used.
Supported frequency range: 40kHz to 30MHz
Product specifications and design subject to change without prior notice
4 band selectable
305mm diameter
305(W)x367(H)x38(D)
118(W)x59(H)x112(D)
300(W)x425(H)x110(D)
220g
300g
10m of RG-58/U coaxial
cable with BNC female
connectors.
AOR, LTD.
2-6-4 Misuji, Taito-ku, Tokyo 111-0055, Japan
Tel:+81-3-3865-1695
Fax:+81-3-3865-1697
www.aorja.com
(Sept.25, 2013)
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