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<PLL STEP>
Frequency can normally be adjusted in smallest steps of 50KHz or larger steps of 100KHz. We recommend you to select
100KHz as this lets you change frequency fast and there is rarely need for fine tuning. However, you can enter this menu and
select a PLL step of 5KHz for example and take advantage of these small steps.
<FIRMWARE VER>
This option allows you to display current LCD module firmware version. At the time of writing firmware version was
[ V1.1 02/11]
<CURRENT ALARM>
You can set the sensitivity of amplifier current alarm here. We recommend you set these according to your amplifier. This
alarm only works if you use PCS LPF 6000 or PCS LPF 5000 filters with current sensor. Current meter accuracy is not very
high at this time.
<TEMP ALARM>
You can set the sensitivity of temperature alarm here. We recommend you set these to 70-80 degrees Celsius. A properly
installed unit with a tiny fan will typically run at 55 degrees C at maximum output power. This alarm applies to externally
sensed temperature (PCS LPF 6000/7000 or ControlMini2), if you are using external PWR/SWR METER.
<SWR ALARM>
You can set the sensitivity of software driven SWR alarm here.
<U AMP ALARM>
You can set the sensitivity of amplifier supply voltage alarm here. We recommend you set these according to your amplifier.
Usually this is around 50V. This alarm only works if you use PCS LPF 5000/6000/7000 filters with voltage sensor.
<BAND SELECT>
MAX supports one band, if you want us to modify design for another frequency please let us know:
- [87.5-108MHz]D – This is default band, used in most of the world. MAX works perfectly across the entire
band.
<RF AMP CONTROL>
This menu option lets you choose how the MAX PRO 50XX+ controls the amplifier. Please leave this setting at default
value “(D) No amplifier” as it has no function in 25W exciters since they don’t have additional external amplifiers.
- [No amplifier]D – Default option, you will not be using an amplifier
- [Controlmini1] – Basically mode A for the system described in appendix D
- [ControlMini2] – Basically mode B for the system described in appendix D
<RF POWER ALC>
This menu option is usefull for situations where MAX PRO 5000 drives a pallet or other FM amplifier. It is possible to set a
limit power level (for example 500W) and exciter will reduce its output power if needed to prevent overdriving. This is a very
usefull feature when you are for example building a 500W, 1000W or stronger FM transmitter, it ensures constant power
across the band without overdriving.
