Table 3.
International stations (continued).
13. RT-1209/URC.
The RT-1209/URC is designed so that frequencies above
29.9999 MHz cannot be selected.
However, frequencies below 2 MHz can be
selected, which causes an automatic tune-fault tone upon keying the PTT
switch. The selection of a frequency below 2 MHz and improper grounding are
the most likely causes of operator-induced faults.
The frequency is
variable from 2 MHz to 29.9999 MHz in 100-Hz steps, allowing 280,000
distinct frequencies.
PRACTICE EXERCISES:
4.
Performing an EPC to verify a problem reported to you consists of
three parts. They are--
a.
receiver function, transmit function, and system check.
b.
verify installation, verify radio set installation, and do an
equipment performance check.
c.
check the radio, check the antenna, and check the mount.
d.
power check, audio check, and RF check.
5.
During the receiver function check, you set the frequency for 5 MHz
to--
a.
hear 1-kHz tone.
b.
hear GMT time signal.
c.
hear net control.
d.
receive a distant station check.
6.
If the NVIS antenna is being used at 5 MHz, the ANTENNA LOADING switch
should be set at--
a.
2 to 10 MHz
b.
10 to 30 MHz
c.
DIPOLE.
7.
When clicking is heard in the handset at turn-on, this indicates that
the--
a.
coupler is tuning to antenna.
b.
coupler cannot tune to antenna.
c.
frequency is set below 2 MHz.
d.
battery is providing low voltage.
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