Software description
Main window
3 Primary VFO frequency
4 Secondary VFO frequency
5 VFO A, VFO B buttons
Buttons for selection of a primary VFO.
6 Mode selection buttons
In the actual version the following modes are implemented: AM, USB, LSB, CW-U
and CW-L. In the actual version AM, USB, LSB, CW-U and CW-L are implemented.
The button Digi is used for digital modes in conjunction with external programs. It
works as memory button for audio input output settings, turns off the TX equalizer
and compressor, as well as NB, NR, ANF and AGT functions.
Note: Unlike the classical transceivers, where, for example, in CW-U mode it is possible to tune
away from unwanted signal, which cannot be tuned away in CW-L mode, there is no difference in
ZS-1 between CW-U and CW-L modes (main selection filters are realized digitally and do have
symmetrical edges and an identical suppression to both sides of the pass band). These two modes
only serve the convenience of the operator, in the case when the filter is moved out of the CW side
tone range (the chosen CW tone is not in the center of the filter), one can easily switch between
CW-L and CW-U, without changing the lower or upper filter limits to tune away from unwanted
signal.
7 Bands buttons
8 Filter
Slider to adjust the filter bandwidth.
Note: The band filter can not be greater than the span of the transceiver and it can not exceed half
of the selected sample rate audio.
9 Memory buttons filter width
Three memory buttons allow you to set the most commonly used band for the
reception bandwidth for each mode (AM, SSB, CW) and quickly switch between
them.
10 LPW button
On/off switch for low power transmit mode. In this mode the final amplifier is not
engaged during transmission. According to the output power slider setting, the
antenna gets a signal of up to 40 mW.
Note: In the LPW transmission is possible at any frequency within the HF band.
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