microHAM SMORF Manual page 39

This METER MODE has been designed for use with two sensors operating at the same frequency. In this meter
mode SMΩRF provides unique features, gain (or attenuation) and phase shift measurements between sensors.
Typical RF setup is when sensors are connected in series, measuring parameters of the device inserted in
between them (as shown on drawing below, usually Power Amplifier) but sensors not necessary need to be in
series, it is important to ensure that they operate at exactly the same frequency. They can be connected to two
independent ports of any RF box (stacking/phasing box) providing both, amplitude and phase measurement
between sensors. Typical application is advanced measurement on Power Amplifier or other devices under test.
Keep following instructions:
Sensor 1 must be connected to SENSOR 1 IN ports, IN1/IN2. In series setup, this sensor should be
–
placed in front of the tested device, towards signal source (transceiver).
Sensor 2 must be connected to SENSOR 2 IN ports, IN3/IN4. In series setup, this sensor should be
–
placed after the tested device, towards load or antenna.
If you are connecting two SMΩRF boxes to iLINK bus of MK2R+, it is necessary to set radio assignment,
–
it defines which SMΩRF belongs to RADIO 1 (ID=1) and which belongs to RADIO 2 (ID=2).
This METER MODE has been designed to use SMΩRF with two transceivers, each using its own sensor. Typical
application is to use with two independent transceivers in general, but this meter mode is especially useful for
SO2R setups with single SMΩRF meter. In this case Sensor 1 is fixed to Radio 1 and Sensor 2 is fixed to Radio
2. Both Power Amplifiers (PA1/PA2) drawn on the screen are optional.
Keep following instructions:
Sensor 1 must be connected to
–
SENSOR 1 IN ports, IN1/IN2
and belongs to Radio 1.
Sensor 2 must be connected to
–
SENSOR 2 IN ports, IN3/IN4
and belongs to Radio 2.
This METER MODE is very special and makes SMΩRF a four (4) channel level/phase meter without use of any
external sensor.
In this mode only the 4IN screen is
available, and there are no other
settings. There are no SENSOR and
ALARM settings as well as bar
graphs, scale and range indicators
which are intentionally turned off.
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SINGLE RADIO / SENSORS IN SERIES mode
TWO INDEPENDENT RADIOS AND SENSORS mode
DIRECT INPUTS / NO SENSORS
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