[Elecraft] Need to shift 8 pole 2.1 filter?
Greg
ab7r at cablespeed.com
Thu Apr 14 21:07:47 EDT 2011
Laurent is usually very open to suggestions and does a great job
supporting the K3.
73
Greg
AB7R
On 4/14/2011 5:44 PM, John and Judy Raydo wrote:
> Iain, I'm going to forward your comments to Laurent at TRX Manager. Thanks. John.
>
>
> --- On Thu, 4/14/11, iain macdonnell - N6ML<ar at dseven.org> wrote:
>
>
> From: iain macdonnell - N6ML<ar at dseven.org>
> Subject: Re: [Elecraft] Need to shift 8 pole 2.1 filter?
> To: "Guy Olinger K2AV"<olinger at bellsouth.net>
> Cc: "kcflyers"<kcflyers at yahoo.com>, elecraft at mailman.qth.net
> Date: Thursday, April 14, 2011, 7:32 PM
>
>
> You'll have the same problem if you NORMalise in SSB mode, then use
> the XFIL button to select a narrower filter - it'll still be centered
> on 1.50. It'd be nice if the NORMalise function for SSB mode could be
> configurable, and if selecting other filters could, perhaps, adjust
> the shift so that, effectively, the LO-cut stays the same. Personally,
> I have a 1.8kHz filter, and use 1.8kHz all the time for SSB - I see no
> need to let any more than that though to my ears... but I'm not an SSB
> rag-chewer......
>
> ~iain / N6ML
>
>
>
> On Thu, Apr 14, 2011 at 11:36 PM, Guy Olinger K2AV
> <olinger at bellsouth.net> wrote:
>> Oh, remote controlled... That would be the app programmer's issue,
>> not Elecraft. TRX Manager does not appear to acknowledge any support
>> for Elecraft on their web page. Sort of whatever works, fine,
>> whatever doesn't, too bad attitude, if they even care. Just marginal
>> support for TenTec.
>>
>> I believe you need to negotiate a feature with the programmer of TRX
>> Manager. Like maybe supporting Elecraft outright? You can program a
>> macro to set your preferred shift setting IF you can send a macro
>> string to the K3. See the current K3 programmer's guide.
>> BW2100;IF1350; if you want to start hearing at 300 Hz.
>>
>> You want to base your choice of rigs on the 3rd party software, or
>> base your choice of 3rd party software on your rig?
>>
>> If you attempt to solve this by setting the filter calibration offset
>> in the K3 utility, it will work OK for one sideband, but turn the
>> other into Donald Duck. Don't go there. That is only establishing for
>> the rig where the crystal's center frequency actually is, so it can
>> respond to offsetting commands in the firmware.
>>
>> 73, Guy.
>>
>>
>> On Thu, Apr 14, 2011 at 4:09 PM, kcflyers<kcflyers at yahoo.com> wrote:
>>> I am running K3 remotely using TRX Manager. When in the 2.8 filter the shift
>>> display is centered on the TRX display, and display below shows 2800. When
>>> switching to 2.1, the shift display is still centered. I did notice that
>>> the width control slider moves up (by itself), and width display at bottom
>>> goes from 2800 to 2100. I did not manually change the width control. So
>>> in this situation, I have to move the shift slider to offset from being
>>> centered. This is an inconvenience when switching back and forth between
>>> filters.
>>>
>>> I am not at my K3, so can't check what happens when I just change filters,
>>> whether same as above (requiring shift), or not.
>>>
>>> --
>>> View this message in context: http://elecraft.365791.n2.nabble.com/Need-to-shift-8-pole-2-1-filter-tp6273972p6274222.html
>>> Sent from the Elecraft mailing list archive at Nabble.com.
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