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20
Using the MAX PRO 50XX+ exciter
Lcd control module
Basically there are three push-buttons available for the menu system; UP, DOWN and MENU. By pushing UP or
DOWN you get a shift of frequency in corresponding direction. Hold any of these keys for a few seconds and the jumps
will increase to 500 KHz. The new frequency is saved automatically. The third button (MENU) gives you an option to
select and setup many of the options and DSP functions of this unit. Note that for most users setting frequency and power
are the two important/useful settings, leave the rest alone at default.
Lcd control module menu system
The UP and DOWN keys are used to change parameter values. In normal mode the LCD simply shows the frequency and
power or whatever view you select. Menu key can be used to enter the menu mode, repeatedly pressing this key brings up
the following menus: <RF POWER>, <STEREO MODE>, <VIEW SELECT>, <TREBLE>, <BASS>,
<COMPRESSION>, <THRESHOLD>, <ATTACK>, <DECAY>, <INTEGRATION>, <LCD CONTRAST>,
<RIGHT CH VOL>, <LEFT CH VOL>, <PLL STEP>, <FIRMWARE VER>, <CURRENT ALARM>, <TEMP
ALARM>, <SWR ALARM>, <U AMP ALARM>, <BAND SELECT>, <RF AMP CONTROL> and <RF POWER
ALC>. Pressing the UP or DOWN key selects the desired parameter and allows you to modify its value. Another press on
the MENU key and you’re back to the normal mode. Note that all these settings except power and frequency are already set
as they should be so changing them should not be necessary and is not recommended.
Changing frequency
Simply press the UP/DOWN button to change frequency. Depending on PLL STEP setting your frequency will go down in
50/100/200KHz steps. If you keep pressing a key for a while the PLL STEP switches to fast tuning mode and jumps in
500KHz steps.
Note: UP/DOWN keys change frequency also when you have set a view type which does not show frequency, such as
UPTIME.
<RF POWER>
This setting allows you to set output power. Select desired power with the UP/DOWN keys and press MENU key to exit
the menu system and return to normal operation. Selected power is displayed on the LCD as a line of bars. Think of this
setting as an accelerator (gas) pedal in your car. Think of the power in watts that is shown on the LCD as the speed meter in
your car. Depending on the road going uphill or downhill speed meter will show different values even if your accelerator
pedal is fixed in the same position. If you go downhill your speed will be greater with same amount of gas pedal. Likewise
here your supply voltage can affect the actual output power slightly.
<STEREO MODE>
You can set your transmitter to MONO or STEREO here. This only works when you connect stereo encoder to the MAX
PRO 50xx+ with MAXLINK cable (6-pin flat cable).
Chapter
6
