Download Wisnu Electronics Pemancar Rf-Kits

UNIVERSAL RF AMPLIFIER CONTROL BOARD v2.0
Wisnu Electronics Pemancar Rf-Kits
http://jualpemancarfm.wordpress.com/
[email protected]
Control Board features :
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-5V DC)
-Out maximum, high temperature, and high voltage
lines PSU (Volt and Ampere) on power amplifier
-50V DC main power supply
er meter up to 10kW modules
Support additional external protection port
Wiring connection :
1. Connect main power supply connector to 15 - 50V DC PSU
2. Connect NTC to temperature sensor pads
3. Power adjustment (PWR adj.) : deliver out voltage from 0V (zero power) to 5V (full
power). There are generally three ways to control the amplifier output power :
changing supply voltage, varyingthe drive level, and changing the bias voltage.
Changing drive power work well for amplifier in linear range operation. Changing
bias voltage works better but can produce rise of harmonic. Best results can be
obstained by changing supply voltage to the power amplifier. This guarantees power
efficiency, stability, and good control virtually down to zero power output.
4. Voltage pickup : connect directly to PSU on power amplifier modules. This board
support measurement the voltage on 4 lines different PSU. The system will protect
automatically if the voltage higher than 50V DC.
5. Current pickup: to activated this feature needs the current sensing board (optional/sold
separately). Max.input to this pads are 5V DC. This board support to measurement the
current on 4 lines different PSU.
6. Output Relay : output relay connector (common, NO/normally open, NC/normally
connected) connected to amplifier depending on power amplifier systems. For
example, to cut off the electrical power at the time of the power amplifier systems in
trouble or connect the bias voltage on the mosfet power amplifier to the ground in
troubled times.
7. External protection input ports : connect to the external protection output (optional).
Protected state will occur when the port get 5V voltage supplied from the external
protection while active.
8. RF-in pickup : connect to RF power sensor (directional coupler) from FM exciter or
another RF power input.
9. SWR/RF power pickup: connect to SWR / power pickup (directional coupler) from
power amplifier output. The middle port is ground.
10. SWR/power meter precision adjustment : adjust forward power (FWD), reflected
power (RFL), and RF input power readout accuracy (calibrate with SWR/power
meter).
11. Panel switch expansion : connect to additional swith on panel box if the default
control switch not used.
12. RS-232 port : I/O modules RS-232 connectivity
LCD Menu System
The Universal Amplifier Control Board 2.0 using 20x4 alphanumeric LCD. The front of the
LCD unit starts with the three keys on the right, followed the backlight display. LCD control
module is equipped with our new menu system. The message displayed on LCD can be
modified on request. RF-KIT Electronics welcome screen can be removed on request.
The UP and DOWN keys are used to change parameter value. MENU key can be used to
enter the menu mode, in the normal mode repeately pressing this key bring up the following
menus : Main menu, Voltage PA measurement, Current PA, Reflected Power Max. Setting,
PA Temperature, Temperature Protection Max. Level, RF Input power and RF Input
Protection Level, RF Out Protection Level, Set RF Power, Configuration Hold, Backlight
Mode, and Change Password.
After setting the parameter in “Advanced Setup Mode”, please turn off the main PSU and
restart the board again to running the normal mode. This is only required once during the first
time installation of the power amplifier or this board used on different power amplifier.
WARNING :
input in this mode
he password because the password can’t be reset
Wisnu Electronics Pemancar Rf-Kits
Address : Palm Asri I B1 No.7 Slawi, Tegal, Jawa Tengah 52451
Phone : 085786702550
Blog : http://jualpemancarfm.wordpress.com/
Email / Facebook : [email protected]