Antenna Installation
To avoid the equipment serious damage, do
not switch the modem to transmit mode if RF
antenna is not connected!
Select the type of antenna that best fits your
application and the one that offers the high-
est dB gain. In addition, setup your system in
the highest possible location to minimize ob-
stacles between the transmitting and receiv-
ing systems. Always place the antenna on the
highest point available. At a minimum, set
the antenna to at least ten feet above the ter-
rain using an antenna mast.
Some antennas intended to be attached to
the pole mount adapter (p/n 14-578117-01)
are designed to be operated with a ground
plane and some without it. Antennas oper-
ating without ground plane marked in our
catalogue as NGP, e.g. UHF NGP Antenna 1/2,
2.4 dB gain, NMO:
• UHF NGP Antenna 406-430 MHz, 1/2,
2.4 dBd gain, NMO
• UHF NGP Antenna 430-450 MHz, 1/2,
2.4 dBd gain, NMO
• UHF NGP Antenna 450-470 MHz, 1/2,
2.4 dBd gain, NMO
Theses antennas are NO GROUND PLANE
antennas with gain 2.4 dB and NMO speci-
fied connector type with should match with
your antenna adapter (pole mount or magnet
mount). Antennas designed to be operated
with ground plane
• UHF Antenna 406-430 MHz, 5/8, 5 dBd
gain, NMO
• UHF Antenna 430-450 MHz, 5/8, 5 dBd
gain, NMO
• UHF Antenna 450-455 MHz, 5/8, 5 dBd
gain, NMO
• UHF Antenna 455-460 MHz, 5/8, 5 dBd
gain, NMO
• UHF Antenna 460-465 MHz, 5/8, 5 dBd
gain, NMO
• UHF Antenna 465-470 MHz, 5/8, 5 dBd
gain, NMO
provide better gain, but to achieve the best
performance of your antenna, add a UHF
Antenna Ground Plane Disk (p/n 10-587400-
01) to the bottom of the antenna for a ground
plane. UHF antenna Ground Plane disk im-
proves VSWR and as result increase RF pow-
er delivered from transmitter to antenna and
system distance range.
To install antenna with ground plane disc:
• Unscrew the cone-shaped cable part;
• Place the ground plane disc between
cable parts and screw all parts together;
• Attach cable with ground plane to the
UHF antenna;
• Place the antenna on the pole.
Use coaxial cable and connectors that are im-
pedance-matched with the radio equipment,
and make sure to use the shortest length of
cable to move the signal between the radio
and the antenna:
• UHF Ant Cable TNC/Pole Mount, 12ft
• UHF Ant Cable TNC/Magn Mount,
12ft.
Setup and Configuration
1. Turn on power of HPT404BT JL.
2. Wait for complete loading. When it is
complete, Power LED will blink.
3. Connect to the device and configure it
using a web-browser.
Connection can be established in one of the
following ways:
• via Bluetooth interface: the device
(PC, handheld/pad) should be with Bluetooth
interface with PAN profile support. HPT-
404BT JL Bluetooth-interface is in visibility
mode, has the name “HPT404BT JL” and PIN
7
HPT404BT JL USER MANUAL
