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KX3 Builder Alerts

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 Builder Alert Description Revision
(if applicable)
Link / PDF
KXPA100 Kit Builder Alert #3: Operation with External Power Amplifiers The KXPA100/KX3 combination is designed to interface with the KPA500 amplifier. If another power amplifier is used that presents more than +5V on the keying line, damage may occur to KXPA100 amplifiers with serial numbers less than 0700. Revision A
February 12, 2014
builder alert
KXPA100 Kit Builder Alert #2: Serial Data Noise Suppression Under certain conditions when the KX3 and the KXPA100 are connected to a personal computer via the RS232 port, noise from serial data may be audible in the receiver. Adding a bypass capacitor eliminates this noise. Revision A
February 4, 2014
builder alert
KX3 Kit Builder Alert #1: Battery holder attachment screws Some builders have reported the 2-56 flat head screws used to attach the battery holders in the KX3 do not seat smoothly against the plastic holder. The heads protrude upward and may strike one or more batteries. This is because the builder used screws from the Hardware Spares parts bag which were too long. January 14, 2013 See
builder alert