I have K3 #4340 (kit) which I purchased in spring 2010 and it has a
LOUD POP at power up every time. I have it connected to an external
speaker (plain speaker not an amplified one - ten inch diameter and
probably 4-ohm resistance). I also note this in the internal speaker
if not connected to external speaker. I does this even with audio
gain at minimum. There is a shorter snap when I shut down. Guessing
discharge of electrolytics in the audio amp?
The loudness of the pop is about the audio level one hears if the
audio gain is advanced to 3-o'clock (75% full gain). There is an
audible snap in my headphones (plugged into the front jack) at power
on. The speaker is muted when I use headphones so I can hear the
mild click of a relay at power on if I do not have on the
headphones. I do not hear the relay due to the loud POP if speaker is used.
I kind of ignore it but I worry about turning on the radio late at
night as the loudness of the pop is heard in the bedroom across the
hall with both doors closed.
73, Ed - KL7UW, WD2XSH/45
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BP40IQ 500 KHz - 10-GHz www.kl7uw.com
EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-?
DUBUS Magazine USA Rep
[hidden email]
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