[ICOM] One CI-V, two serial connections?

Gary Fiber gfiber at comcast.net
Sat Jul 25 12:12:08 EDT 2009


>Baud Rate Setting ­ The baud rate setting on the Icom radio is accomplished
>by menu item “CI-V Baud” and needs to be set to ‘4800’. “

Your software should be ok with that

>CI-V Address” needs to be set to 58H.

It really does not matter about the address so 
long as features of either the software or turbo 
tuner are not tied to the CI-V address the radio is set to.

>  “CI-V Transceive” needs to be Off.

This means when you spin the dial or press a 
button the radio sends NOTHING back out the CI-V line.

  “CI-V” 731 set to Off.

This means you are sending 5 bit data. The CI-V 
731 was the old IC-735 4 bit data. all Icoms 
newer than the IC-735 use 5 bit data on CI-V

>“Tunr auto start” set to Off. “Tuner” PTT set to Off.

That means the Turbo Tuner wants to control the 
tune function not have the radio altumatucally start the tuning sequence.

>How does that leave me with regards to the trasceive item?

CI-V is off

>Lastly...
>
>One of my main questions was regarding the 2-conductor 1/8" connector from
>the Turbo Tuner.  It "tip" and "ring"... but no "sleeve".  Yet it's plugged
>into a splitter designed for 3-conductor connectors.  Is that an issue?

CI-V uses a 2 conductor Tip and Sleeve connection 
so a Tip and Ring connection is incorrect.

Gary K8IZ


>Mike, WA9PIE
>
>-----Original Message-----
>From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
>Behalf Of Dave AA6YQ
>Sent: Saturday, July 25, 2009 10:40 AM
>To: 'ICOM Reflector'
>Subject: Re: [ICOM] One CI-V, two serial connections?
>
>If the nodes on a CI-V network are autonomous, then lowering the baud rate
>will increase the likelihood of collision.
>
>Most transceiver-control applications operate the transceiver in
>master-slave mode (i.e. with the transceiver's "CI-V transceive" menu option
>is disabled). The application issues a command, and the transceiver responds
>-- so there are no collisions. The application periodically "polls" the
>transceiver, directing it to report its current frequency and mode.
>
>Reducing the transceiver control application's polling rate will reduce the
>likelihood of collisions.
>
>I am not familiar with the Turbo Tuner, but it may require the transceiver's
>"CI-V transceive" menu item to be enabled, which means that the transceiver
>will autonomously report its frequency whenever you change its frequency via
>the front panel. Since such reports can collide with commands issued by the
>transceiver control application, you should use a transceiver control
>application capable of dealing with them (detecting a negative or missing
>response and resending the command). Of course the Turbo Tuner's embedded
>software must also be capable of dealing with collisions.
>
>
>    73,
>
>        Dave, AA6YQ
>
>-----Original Message-----
>From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
>Behalf Of Joe Oski
>Sent: Saturday, July 25, 2009 10:24 AM
>To: ICOM Reflector
>Subject: Re: [ICOM] One CI-V, two serial connections?
>
>Mike,
>My application is not the same as yours.
>I use a single CI-V to connect to two radios, the 746 and 756P3.
>The Hex addresses are different and each radio is controlled by a different
>version of MixW.
>BTW on the ICOM version of level converter all four 1/8 inch jacks are in
>parallel.
>
>The issue of collisions may be the issue. I suggest you lower the baud rate
>settings on the radio and tuner and of course in the software.
>
>73
>Joe O, KI5FJ
>NNNN
>
>--- On Sat, 7/25/09, Michael G. Carper <mike at wa9pie.net> wrote:
>
>
>From: Michael G. Carper <mike at wa9pie.net>
>Subject: [ICOM] One CI-V, two serial connections?
>To: "'ICOM Reflector'" <icom at mailman.qth.net>
>Date: Saturday, July 25, 2009, 2:38 AM
>
>
>Has anyone had any luck getting two serial devices to talk to a single CI-V?
>
>
>
>I've got an IC-706MkIIG in my truck with a Turbo Tuner (this has a
>2-conductor 1/8" male connector on it that plugs into the CI-V port).
>
>
>
>I've also got a laptop with a CI-V cable (that has a 3-conductor 1/8" male
>connector on it that plugs into the CI-V port).
>
>
>
>N2VZ told me to get a headphone splitter (like you'd use for an iPod) and
>connect both to the CI-V port.
>
>
>
>I did this and it kind-of works.  Both connections have to be at the same
>baud rate (the Turbo Tuner is 4800 baud, so I make the computer connect at
>the same rate).
>
>
>
>The issue is.
>
>
>
>The Turbo Tuner gets confused and ends up taking the antenna the wrong
>direction to tune.  When only the Turbo Tuner is plugged in, it works just
>fine.
>
>
>
>Thoughts?
>
>
>
>Mike, WA9PIE
>
>----
>Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>Icom Users Net: Sundays, 1700Z, 14.316 MHz
>Icom FAQ: http://www.qsl.net/icom/
>To support QSL/QTH.net: http://www.qsl.net/donate.html
>
>
>
>
>----
>Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>Icom Users Net: Sundays, 1700Z, 14.316 MHz
>Icom FAQ: http://www.qsl.net/icom/
>To support QSL/QTH.net: http://www.qsl.net/donate.html
>
>----
>Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>Icom Users Net: Sundays, 1700Z, 14.316 MHz
>Icom FAQ: http://www.qsl.net/icom/
>To support QSL/QTH.net: http://www.qsl.net/donate.html
>
>----
>Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>Icom Users Net: Sundays, 1700Z, 14.316 MHz
>Icom FAQ: http://www.qsl.net/icom/
>To support QSL/QTH.net: http://www.qsl.net/donate.html

Gary Fiber K8IZ
GROL PG-19-6691
Washington State Resident



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