If char is cut into many chars ( since char space is too narrow,
Dots becomes T , Dash becomes E ,Only happens in lower WPM),Dot and
dash space adjust by
“C”
key and
“+”/“–”
key。
C key adjust Char space W key adjust Word space
4.>
Pressing "B" key and the "+" / "-" keys to adjust the receiver
bandwidth, equivalent to a narrow band filter, when noisy in band. Some
machines have build-in narrowband filter, but it will make the spectrum
less on the MODEM, and is not conducive to tuning. MODEM use this
feature on beneficial alignment signal.
But setting too narrow bandwidth, is not conducive to decode at high
speed CW. WPM speed synchronous will unstable, WPM judgment will
exceed 5-10 hopping around, this time decoded data is inaccurate.
Others:
CW mode spectrum is limited within 1500HZ, through the radio
and then adjusted MODEM to a suitable audio alignment signal. By
B, G, C, W, Z key for manual adjustment, see Appendix 3 for detail.
Tap B1, the left side of the spectral lines appear '\' symbol,
Enters escape command mode
。
Note
:
Automatic key is recommended for escape control
and text input. Modem will enter hand key mode
,
by press
right paddle when booting
。
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