Kenwood TS-590SG Manual page 21

TRANSMISSION 02
Figure 2-4 Timing chart (1, 2 or 4)
Figure 2-5 Timing chart (3 or 5)
For large relays, some time is generally required from the point power is supplied to the time the contact switches. The
duration of chattering is likely to be longer too at the time of switching. In the event that sending is attempted before the
contact switches to the sending end, the SWR level rises until switching is complete. On the TS-590SG, the protective
circuit is activated to lower the transmit output momentarily. In addition, if the sound of the relay switching operation is
loud, this may be picked up by the microphone, and transmit signals may be output by this sound as a result. Loud click
noise may occur if the contact switches to the receiving end after reception starts. Delay time is added when [3] or [5] is
selected as the setting, which helps to prevent such errors from occurring.
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