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MB1 User Manual
© 2016 Expert Electronics
TRANSCEIVER OPERATIONS
·
TNF - Tuning Notch Filter.
Will be available in the new software releases .
Manual reject filter with adjusted rejection bandwidth.
·
BI N - Binaural mode.
In one of the headphone channels, the signal will be shifted in phase on 90 degrees.
·
APF - Analog Pick Filter.
Analog peak-filter creates the triangle filter's AFC (amplitude-frequency characteristic) in the
filter bandpass.
·
DSE - Digital Surround Effect.
Digital Surround Effect for CW signals. Provides a space orientation in stereo phones, stations
from lower frequencies are louder in the left channel, stations from higher frequencies are
louder in the right channel. Signal in the filter's center is equally heard in both channels of
stereo phones.
This algorithm provides panorama acoustic of the CW signals in the filter bandwidth,
depending on their position in the filter:
- if the received CW signal is in the receive filter bandwidth and lower the tuned frequency, it
will be louder in the left phone;
- if the received CW signal is in the receive filter bandwidth and higher the tuned frequency, it
will be louder in the right phone;
- if the received CW signal is in the receive filter bandwidth and in the middle of the tuned
frequency, it will be equally load in both ears.
7.22 Meter
Signals' level met er - is the main indicator of the RX, TX, MIC levels, SWR level etc.
List of the measured parameters:
S-met er - Displays (in units) the level of the received signals in the receiver filter bandwidth.
PWR - Displays (in Watts) the level of the output power in TX mode.
SWR - Displays the SWR level with load in TX mode (blue bar).
MI C - Displays (in dBW) level of the MIC signal before modulator (green bar).
SQL - RX signals threshold needle to open SQL.
