User Manual Part 1

FSG 90F System
1. Safety Information
Page 8 November 2000
W. Dittel GmbH
• Prior to any flight verify proper FSG 90F(X) functions by means of a short
communications test. It has to be taken into account that with a faulty antenna or
cable this COM test may absolutely turn out positive at the airfield or in short distance
to the ground station. But at distances of 2 to 6 miles a faulty antenna and/or cable
will cause communication breakdown!
• Push-to-Talk keys may stick occasionally. Therefore, observe while transmitting the
transmit (TX) symbol at the FSG 90F(X) display. This TX symbol must disappear
when releasing the PTT key. After 2 minutes continuous TX the built-in transmit time
out timer disables the transmitter in order to avoid continuous channel blocking.
Then, the whole display warns by continuous flashing. Refer to appropriate hints in
this manual.
• Replace blown fuse only against correct type with specified nominal value.
Investigate the cause.
1.1 Used Symbols
In this manual the following symbols are used:
DANGER!
describes an immediate threatening danger! Failing to observe the note
may cause death or heavy injuries!
CAUTION!
describes a special note for operation. Failing to observe the note may
cause damage of the transceiver and/or stored data may be deleted (SET-
UP or user programmed memory)!
IMPORTANT!
describes explanations and other useful hints. Failing to observe the note
may cause degraded performance and/or unsatisfying operation!