Kenwood TH-D72A Instruction Manual page 51

Problem
"MCP ERR" appears on
the display. (MCP-4A
communications error)
Concerning the received frequency display, an unmodulated signal may be
received. This is according to the set intrinsic frequency form.
(144 MHz + 45.05 MHz) x 2 – (430 MHz - 49.95 MHz)
VxU reception
(144 MHz + 45.05 MHz) x 4 – (430 MHz - 49.95 MHz) x 2 = 45.05 MHz, 49.95 MHz
(430 MHz - 45.05 MHz)
UxV reception
(430 MHz - 45.05 MHz) x 2
Probable Cause
1 Loose cable
connection.
2 Your PC may be
trying to process too
much at once.
3 There are other
reasons as to why
communications was
not possible.
<A band>
– (144 MHz + 49.95 MHz) x 2 = 45.05 MHz, 49.95 MHz
– (144 MHz + 49.95 MHz) x 4 = 45.05 MHz, 49.95 MHz
Corrective Action
1 Ensure that the connection
between the TH-D72 and
the PC is correct.
2 Shut down other software
that you may be running.
3 Turn the TH-D72 power
source OFF and ON, one
time.
<B band>
= 45.05 MHz, 49.95 MHz
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