[Elecraft] Diversity Mode - DATA-A

[nr4c]

On Wed, 15 Jun 2011 22:52:50 -0400, Joe Subich, W4TV wrote:
>> The K3 "line out" jack is MONO.
>
> That is *INCORRECT*.  The Line Out jack is stereo with Main RX on
> the tip (left) and Sub RX on the ring (right).  You need software
> designed for diversity reception - each audio stream should be
> decoded separately and the data combined after decoding.
>
> 73,
>
>     ... Joe, W4TV
>
>
> On 6/15/2011 10:39 PM, Bill Conkling wrote:
>> The K3 "line out" jack is MONO.  Nothing beyond the K3 is gonna see 
>> two
>> signals.  It might be combined in the K3 audio circuit, I didn't 
>> look this
>> up.
>>
>> ...bc  nr4c
>>
>> -----Original Message-----
>> From: vk4cmv [mailto:vk4cmv at gmail.com]
>> Sent: Wednesday, June 15, 2011 7:53 PM
>> To: elecraft at mailman.qth.net
>> Subject: [Elecraft] Diversity Mode - DATA-A
>>
>> I've been playing around with diversity mode on 40m - having just 
>> put up a
>> vertical off to the side of a horizontal dipole.
>>
>> I have to say, listening to 40m is a delight with diversity turned 
>> on - CW
>> and Phone signals just float around in space when you're wearing the
>> headphones - very 3D. I haven't been playing with it long enough to 
>> tell
>> whether its going to assist copy or not - but certainly an 
>> interesting
>> effect and preferable to how it was before.
>>
>> Anyway, the real reason for the vertical was to get a bit more RX 
>> traction
>> on 7.076 JT65a - looks like I need to put out more radials because 
>> the
>> dipole is still winning by a few db.
>>
>> So, I'm presuming that in DATA-A mode, each antenna is effectively 
>> being
>> heard on respective L&  R channels on the line-out jack?  It looks 
>> that way,
>> just want to confirm that it's the same as what's coming through the
>> headphones.
>>
>> I've also set up a macro in HRD to send !BEFF to the rig which, 
>> according to
>> previous posts, combines the audio in diversity mode. Having done 
>> that, I
>> had this sneaking feeling that I was copying (decoding) better - but 
>> it
>> could be wishful thinking and needs proper testing, not just playing 
>> around.
>>
>> When I say decoding better - it's not just a matter of dBs, it's a 
>> matter of
>> the reception holding together for a full 48 seconds in each minute 
>> through
>> QRM&  QRN.
>>
>> Anyone else out there tried diversity in DATA-A?
>>
>> rgds, Julian VK4CMV
>>
>> PS: Any news on when VOX is going to be implemented on a per-mode 
>> basis, ie.
OOOPSS!!!

I even looked it up, but I was thinking OUT, and reading IN.  It's the 
LINE IN that is MONO.  Sorry for the confusion.

...bc  nr4c



OOPS!!!>> DATA-A vs Phone?
>>
>> --
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>> .html
>> Sent from the Elecraft mailing list archive at Nabble.com.
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