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If you are using a Power Amplifier connected to the local PA port, is necessary to connect it properly. Pin
assignments for the signals at the PA connector are in Appendix A.
NOTE: All configuration parameters are set in Router, Configuration Management – RF Boxes – Two Port
Devices – Power Amplifier.
The Power Amplifier port contains several signals:
KEYOUT (pin 7)
•
PTT Output for keying the amplifier.
IMPORTANT: The KEYOUT line is an open collector circuit capable of 45V @ 800mA maximum. If the
open circuit voltage is more than 48 volts or negative, a keying buffer must be used between
Station Master Deluxe and the amplifier. All modern amplifiers including all solid state power
amplifiers can be switched directly without a buffer.
KEYIN (pin 6)
•
Input from the Power Amplifier OUTPUT (if available) that switches to low (closes to ground) to control
RF power generated by transceiver. If your amplifier provides such output, always connect it to KEYIN
and enable the Key In signal. If the amplifier output is active high (open when ready as in the case of
SPE Expert) check the Invert Key In flag .
POWER SW (pin 9)
•
Some amplifiers can be turned on and off remotely by applying +12V to a remote input. SMD supports
this function and provides switched +12V output on the POWER SW pin. This output is frequency
dependent; SMD permits selecting which power amplifier operation on a per-band basis.
IMPORTANT: The POWER SW signal can provide at most 100mA. If your amplifier needs more power,
an external buffer/relay is mandatory. Please refer to your amplifier manual for more details.
CI-V (pin 5)
•
Icom format and level compatible output signal for automatic control of a power amplifier or antenna
tuner using the Icom interface. The proper Baud Rate and CI-V Address must be set for the amplifier.
Please see your amplifier instruction manual for the proper parameters and set-up procedure.
For all transmitting devices (Power Amplifier or tuner), TX frequency is recommended.
BCD BAND DATA (pins 1-4)
•
TTL Band Data in Yaesu format for automatic band switching of amplifiers or turners that use the Yaesu
interface.
microHAM offers optional PA cables for most modern automatic and solid state amplifiers currently available on
the market. Check your vendor's website or
Station Master Deluxe contains one RS232 port that can be used for control of a locally connected SteppIR or
UltraBeam antenna, provide support for Icom compatible accessories, or be used as a general purpose serial
port.
Auxiliary port:
When Serial port function is set to Auxiliary port, data is transferred between the "Auxiliary" virtual port defined
on Ports tab and the SERIAL port without modification. Maximum data rate is 19,200 baud. There is no
relationship between transferred data and SMD functions.
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Power Amplifier Port
www.microham.com
Serial Port
91
for cable diagrams, availability and price.
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