[DogParkList] MLDX randomly turns off narrow filter?

[Jim Meehan]

Is there a way to put MLDX into a "query only" mode and disable control
commands?  For the time being, I'm only using the CI-V link to receive
frequency/band info into my log.

-j

On Fri, Aug 28, 2009 at 2:54 PM, Don Agro <dagro at dogparksoftware.com> wrote:


> Hi Jim,

>

> On 2009-08-28, at 5:11 PM, Jim Meehan wrote:

>

>  I'm using MacLoggerDX with an Icom IC-706MkIIG.  The 706 has the optional

>> narrow SSB filter installed.  Everything is working great, except that MLDX

>> seems to randomly turn off the narrow filter.  I can't find any connection

>> as to when it happens.  Sometimes I'll be tuning through the band, and other

>> times I'll just be listening, touching neither the 706 or my Mac, and

>> suddenly the narrow filter is off.

>>

>>

> The problem is that every mode command sent to an Icom radio has an

> optional filter width parameter that we do not sent.

>

> How the radio will respond to the mode command without the filter width

> setting is rather confusing and depends on which Icom you are using.

>

> <http://www.plicht.de/ekki/civ/civ-p33.html>

>

> "Due to historical reasons the filter settings are somewhat confusing. The

> original CI-V protocol initially had only two settings for filter width:

> normal and narrow. When newer rigs came out, supporting three settings

> (wide, normal, narrow) the codes for the filter width had to be extended.

> This leads to some confusion about which value sets which filter, further

> aggravated by erroneous documentation (e.g. IC-R75)."

>

> We did experiment with sending the filter width command with the mode

> command in Version 5.07 Beta 3 but an unexpected complication was that some

> Icom radios do not report the filter width accurately causing more problems

> than it solved and the option was removed.

>

> 73 de VE3VRW Don Agro

>

>

>

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