[Icom] 765 output spike

[Cletus W Whitaker]

de WB2CPN South Central Pennsylvania  2002.06.05

I've seen this on many transceivers.  There is so much changing state
when the PTT is operated that there's always something that can cause
a "click" or a short pulse to get transmitted.  And the ALC will react
to this pulse(?) and verify that a pulse(?) was transmitted.  Some
transceivers are designed so that an internal sequencer (a timer) will
control the order of things, and the output stage was the last to come
on, (the external amplifier came on before the internal output stage
came on).  Not all transceivers are engineered/designed to this level
of quality.  When I run my 2-meter transceivers on low-power FM they all
show a high-power pulse before the ALC takes over.  That could damage
an external amplifier if one is used.     73   Clete