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LFA
Ultra-Wideband Active Antenna
with remote controlled filter bank
pg. 1
Horizontal Plane
120°
LFA is a wideband UHF antenna LPDA (log periodic dipole array) with integrated bandpass filter
and low noise booster.
It enhances reception providing approximatively 7dB gain with typical beam-width of 120
degrees. Thanks to an exclusive skeleton design with sloped elements, this antenna can work
in 410-1300 MHz band (bypass mode). It is possible to enable the integrated passband filter and
the internal booster (adjustable in 1 dB step).
The feeding line is integrated on the PCB (for mechanical robustness) and all the electronic and
mounting base are made by solid metal with waterproof gasketing.
ANTENNA PLACEMENT
Here above some examples of diversity antenna configurations.
In example 1 the antennas are side to side: although 20 cm (1 foot) it is enough for the diversity
to work, in this case it is advisable to keep them at least at 1 m (5 feet) distance in order not to
get them interfere each other. In the example 2 the antennas are mounted vertically in a more
convenient configuration (since they do not interfere much), this configuration is very good also
with 2 antennas used for transmission.
Space
diversity
Rx B
Rx A
Rx B
Rx A
Space
diversity
Example 1
Example 2
LFA
Ultra-Wideband Active Antenna
with remote controlled filter bank
pg. 2
SETUP CONTROL
MENUSTRUCTURE AND NAVIGATION
STATUS menu This is the first menu displayed after power up and provides access to submenus and
displays a summary of antenna settings.
Push MENU/SAVE to enter in the menu
Use the arrows to navigate the menu and edit the parameters
Keep pushing MENU/SAVE for 2 seconds to save
Confirm the new setup value within 5 sec. by pressing one more time on the MENU/SAVE
button. Without any confirmation within 5 sec. the modification is cancelled.
Configure filter setting according to the frequency range in use.
Configure gain setting according to the loss of the cable used (see below typical attenuation
table).
1) Simple operation with 4 buttons to quickly monitor and setup the
antenna booster and filters through the user menu.
2) Signaling LED multicolor:
o White: when the unit is in bootloader mode during the
firmware upgrade
o Orange: booster bypassed, antenna becomes passive
o Green: active booster with gain between -12 ÷ 14 dB (low
consumption approx. 65mA@12V)
o Blue: active booster with gain between 15 ÷ 27 dB
(consumption approx. 110mA@12V)
o Red: fast blinking (when blinking function is activated by
Manager or by MAT/SPL for easily recognizing of antenna)
o Red: fixed, alarm (type of alarm is shown on the display)
o OFF: antenna OFF mode or LED disable by settings
3) TFT – transflective (176 x 176 pixels, RGB)
2
1
3
NAME of ANTENNA
Gain
Frequency range
Serial Number
Produktspecifikationer
| Varumärke: | Wisycom |
| Kategori: | mikrofon |
| Modell: | LFA-B-F2 |
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