User manual

7
Direct entry key functions (basic functions)
To get to know your station we recommend that you duplicate the described steps. In this chapter you
will learn the basic functions which you should know about to take part in amateur radio. It is taken for
granted that you as a licensed radio amateur are familiar with basic knowledge of high frequency
engineering and amateur radio regulations. This is why basic technical matters, questions of wave
propagation and regulatory issues have not been considered in this manual. You can achieve all basic
functions directly with the help of buttons or knobs. All directly eligible functions are marked white.
On / Off, Volume and Squelch settings
Before first use do not forget to connect microphone and antenna. Being as small as it is all operating
elements of the AE 540 have been distributed on the front panel and the microphone according to the
frequency of using them. Reception is - but without any special functions – possible without microphone.
• The unit can be switched on or off by turning the combined VOL /OFF knob. When switching on
for the first time choose a medium volume and turn the SQL knob to the left until you hear the
background noise.
• Squelch SQL has to be adjusted so that the noise just starts to disappear. In this position
squelch will even be opened by weak signals, it is the most sensitive position. In case you turn
squelch further to the right (clockwise) signals have to grow stronger to be switched through.
The LC Display of AE 540
When switching on for the first time a frequency is shown on the LCD display in the middle of the band
(145.50 MHz). This is the VFO-mode.
• You can select the operating frequencies by the rotary channel selector at the front panel or
the UP- / DN (down) keys on the upper side of the microphone in programmable steps (channel
spacing). You may also use the direct keyboard entry on the microphone. Please follow this
system:
Examples:
145.7750 MHz:
Enter 4 5 7 7 5 in sequence. Omit the first leading digit „1“, which is the same at all possible
frequencies. Do not enter the last digit „0“, because the result is already clear after entering the „5“. So
entering the last digit is not necessary.
144.8175 MHz:
Enter 4 4 8 1 7 in sequence. The radio will add the last „5“ of the 12.5 kHz spacing system
automatically.
When switching on for the first time the programming designated for Europe is being done already in
steps of 12.5 kHz. If you prefer a different frequency frame, i. e. in areas where there are not yet
frequencies in the 12.5 kHz frame, adjust your radio via the set-up menu to the desired channel spacing
system.