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3-5.
Control system – buttons and menus
a) The OPR/STB and the BAND (up and down) buttons are used for manual (local) control of the amplifier in
the basic screen (Fig. 3-2):
- the left-most button – OPR/STB is for alternative switching of the amplifier mode between Operate and
Stand-by;
-
the next two buttons – BAND up and down arrows – serve for manual change of the frequency bands in
ascending or descending order; pressing and holding on either up or down arrow for one second will
refresh the information about the operating frequency on the CAT/AUX INTERFACE;
b) The right-most button – MENU (Fig. 3-2) – serves for access to the list of menus.
All necessary instruments, as well as the control and service options of the amplifier are structured in six menus.
Each of them has only one hierarchical level (menu depth) – Section 5 and Fig. 5. This simplified structure gives
the operator maximum clarity and possibility of easy navigation. More handiness is provided by the uniform
approach to the different menus:
- in each screen (the menu list and all tools in them) the left-most button is always HELP and the right-
most – always EXIT;
- the HELP button can be used at any time for obtaining of auxiliary information concerning the currently
activated screen (context sensitive help);
-
the currently chosen menu title (for example AMP MEASURE) is always present at the top of the menu;
- the EXIT button can be used at any time to leave the currently used menu or the menu list for possibly
easiest and fastest “return” to the basic screen (Fig. 3-2).
For more details on the control system and use of the menus see Section 5. MENUS – USEFUL INSTRUMENTS
AND OPTIONS.
3-6. Test
transmission
To make sure that you have installed the amplifier correctly, before you put it in operation, make a test
transmission as described below. Repeat these tests for each new band and antenna, as well as after installing a
new or repaired antenna, antenna switch, tuner, and / or connecting cables.
a) Check of RF by-pass path at non-driven amplifier.
For this check the amplifier must be completely installed and connected withing the shack according to Section 2,
but not powered by the mains, i.e. the mains power plug must be pulled out from the mains outlet or the POWER
ON switch on the rear panel must be in turned off position. In any case the LED above ON/OFF button must be
dark for this test.
First, check if the transceiver reception is normal. If you observe a significant worsening of reception, search for
the problem first in the coaxial connections to the amplifier (S. 2-3(d),(e)).
If reception is normal, prepare the transceiver regime as follows:
-
select a continuous carrier mode (CW, RTTY, FM or some digital mode);
-
switch the microphone off (decrease the mic gain), ban the FSK respectively;
-
reduce the output power control to a minimum;
-
select a suitable indication so that you can watch the RF power and SWR at the transceiver output;
-
if the transceiver has an incorporated antenna tuner – switch it off.
Now in receive mode select a frequency which is not occupied at the moment and press shortly the transmit
actuator (the PTT or the TX button) while observing the output power and the SWR indicators. If the power or the