"Paddy" wrote in
:

Should have made myself a little clearer. The private channel would be
one of the UK commercial marine channels.
Mick



On page 10 of the manual it says:

"4.5 USA, CANADIAN AND INTERNATIONAL MODES
1. To change the mode of the transceiver, hold down the 16/9 key and
press the WX key. The mode changes from USA, to International, to
Canadian with each press.
2. “USA” appears on the LCD for the USA mode, “INTL” appears for
International and “CAN” appears in Canadian mode.
3. Refer to marine channel charts in OWNER’S MANUAL
SUPPLEMENT for allocated channels in each mode."

Then, back in the channel charts it shows the channels the various modes
provide. It also states:

"4.15 SIMPLEX/DUPLEX CHANNEL USE
All channels are factory-programmed in accordance with FCC(USA),
Industry Canada and International regulations. Mode of operation cannot
be altered from simplex to duplex or vice-versa. Simplex or duplex mode
is
automatically activated, depending on the channel and whether USA,
International or Canadian operating mode is selected. Refer to the
channel
charts in the OWNER’S MANUAL SUPPLEMENT."

Which means it is what it is and can't be changed, I suppose....hard
wired programming.

The manual is online at:

http://www.standardhorizon.com/downl...3&FileCatID=87
&FileName=hx350s.pdf&FileContentType=applicatio n/pdf

(sorry for the wordwrapping this long URL)