Operation Manual

OM-E 2072-09287-00
1-3
Table 1-2. Accessories
Option Mfg. Cat. No. Description
FRN8580 2072-48016-20 Spare carrying harness
FRN8577 2072-09173-10 Spare Lithium-Ion battery
FAD5530 2089-09315-00 Spare portable collapsible whip antenna
FAA5516 2072-09112-00 2-30 MHz, 125W P.E.P tactical portable wideband antenna
package
FAA5507 2072-92201-00 Portable long wire antenna package
FRN8570 2072-09331-00 Single battery charger
FAA5548 2187-09322-00 AT-1743 dipole antenna
FMN5501 2090-09252-00 Spare handset (H-250/U)
1-3.2 Micom Receiver/Transmitter
The Micom Pathfinder receiver/transmitter unit performs the following main functions:
• Generates the transmit signals.
• Demodulates the received signals.
• Processes the GPS signals (optional).
• Provides the interfaces to the operator, and to data equipment using Micom Pathfinder for radio
communications.
Figure 1-2 shows a general view of Micom Pathfinder, including its battery box.
Figure 1-2. Micom Pathfinder
Receiver/Transmitter
The Micom Pathfinder is a complete HF/SSB receiver-transmitter, powered by a 14.4 V Lithium-Ion
battery installed in a battery box attached to the rear side by two clamps. The box houses the battery
and protects the battery against environmental elements.
The nominal output impedance of the Micom Pathfinder is 50 Ω, and therefore it can be directly
connected to broadband antennas (dipoles, traveling wave antennas, delta and semi-delta antennas).
An internal antenna tuner enables using various whip antennas (in addition to the 2.7 meter (9 ft)
antenna offered as a standard for the Micom Pathfinder). The transmitter includes antenna mismatch
protection: if the VSWR (Voltage Standing Wave Ratio) is too high, for example, because the antenna
is disconnected or damaged, the transmission will be inhibited to avoid damage, and a message will be
displayed. In addition, if for any reason, the transmitter internal temperature exceeds the maximum
permitted temperature, the transmitter output power is automatically reduced to avoid fault due to
excessive heat.