頁面 5 – Avlex AD-707a Wideband 4-Channel Antenna Divider User Manual
Page 5
4
5
1.
Antenna-in connector has 8.3V DC output. Be cautious that any parts of antenna
or core wire of antenna cable should not make direct contact with case to avoid
electric shortage.
2.
It will not function properly if DC voltage falls below 12V. However, if it exceeds
15V, it will damage internal circuit components.
3.
Use 50Ω coaxial cables between receiver and divider. Best to keep cable length as
short as possible. It is recommended to use the included cables.
4.
When using antenna cables and remote antenna, please use 50Ω coaxial cables.
The longer the cable or the smaller the cable diameter, the more loss of RF signals.
Hence, please keep cable length under 6 meters. If longer antenna cable is
needed, use larger diameter cable to reduce the loss of signal through the
attenuation in the cabling.
5.
This device is a wideband antenna divider (regulated at 480~800 MHz for EU).
When pair this system with conventional narrowband 1/4λ or coaxial antenna,
please make sure frequency band of antenna matches with receiver.
Cautions
Front antenna mount brackets
(FB-30)
UHF
Antenna
4
4
(Figure 5)
Antenna Divider System
Antenna Divider System
1.
Use rack mount brackets and install this system with receivers on an EIA
standard cabinet.
2.
Use receiver antennas or AT-90W's and install onto antenna-in connectors . See
Figure 4. MIPRO accessory, FB-30, front antenna mount brackets (not included);
can also be installed at the front of the receiver to improve antenna reception.
3.
Connect antenna distribution output connector to antenna connector of each
receiver via RG-58AU signal cable (included in the package).
4.
Connect DC lead into the DC socket , and the AC adapter into an AC outlet
socket (Caution: adapter voltage must adhere to each local AC voltage range)
5.
To operate, simply power-on the power switch.
Second Application:
First Receiver
Second Receiver
Third Receiver
Fourth Receiver
Antenna (TNC)
(Sold Separately)
AT-90W
(Sold Separately)
3
3
6
6
7
7
4
4
(Figure 4)
Antenna (TNC)
(Sold Separately)
AT-90W
(Sold Separately)