Benton,

Take a look a the supported features documentation, http://chirp.danplanet.com/download/0.3.0/Model_Support.html.  If you scroll over to the right, you will find a column labeled "Duplexes".  It will list for each radio what the valid options are, including the "off" option.

  
-----
Kevin Whipp
Phone: 240.242.9850
Amateur Callsign: W3KDW
ARRL: w3kdw@arrl.net



On Thu, Jan 2, 2014 at 2:02 AM, Benton Holzwarth <bcgh@aracnet.com> wrote:
I'm helping organize a base set of frequencies -- a 'standard load' --
for our local CERT group, Tigard, OR.  I've read a ton of posts and come
up with a base set of guidelines that I'm hoping will cover the 'least
common denominator' radio that someone might show up with.

   o Don't use row zero, some radios start at row-1
   o Hold to 5 characters for the memory 'name'
   o Include the FRS and official frequencies as Rx only
   o Different radios have different numbers of memories, pack the
highest priority bits into the lowest memory-rows.  Some radios stop at
16 memory-rows, others go to 100 or 128

We'd like to load some Rx-only frequencies -- FRS, the local police
forces and ambulance service that use UHF, but in Rx-only.  When I set
'duplex' to 'off' Chirp says something about not all radios support this
setting.

   o Is there a list of radios that do support?
   o If I try to program duplex-off into a radio that doesn't support
it, what is the reaction from Chirp?  Does it let me know there's a
problem or just gloss over and make those frequencies tx-able?

I'm trying to figure out how best -- across a wide field of radios -- to
manage a set of frequencies that should be Rx-only.  Duplex
off/split/offset  One solution seems to be to dial in 'split' pointing
the tx-side to a harmless corner of the Amateur band.

Thought?

Benton 1jan14
--
KF7QLP
benton@siletzbay.com


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