[Elecraft] K3 - Sub RX audio to right Line Out

[Joe Subich, W4TV]

> If I turn on the Sub Rx and plug a set of headphones directly into
> the K3 Line Out jack in the back, I hear audio on the left channel
> only.

If you hear audio only on left/main when connected directly to the
Line Out jack you are probably correct but try a pair of powered
(computer) speakers to make sure the level isn't low.

 > So I don't think it is the MH cable pigtail

FYI - the "Sub Rx" pigtail is Sub RX only with audio on the tip to
match to the single channel connections of the Sub RX jack on MK II
(and MK2R+).

> I will check L2. I guess you are telling me it could be "open?" Why
> would that happen?

Yes, L2 could be open - of course you could also have bent missing
pins on the KIO3 boards and on the front panel.  However, I have seen
several of the KIO3 RF chokes open and have never found a good
explanation.

73,

    ... Joe, W4TV


On 4/29/2014 11:43 AM, Buck - k4ia wrote:
> Joe - that is what I have set up.  If I turn on the Sub Rx and plug a
> set of headphones directly into the K3 Line Out jack in the back, I hear
> audio on the left channel only. So I don't think it is the MH cable
> pigtail.  The problem seems to be in the K3.
>
> Sub Rx works fine in the headphone jack on the front.  This is the first
> time I have tried to listen to the Sub Rx through the rear Line Out
> jack.  I was hoping it was a menu setting I was missing. I will check
> L2.  I guess you are telling me it could be "open?" Why would that happen?
>
> Buck
> k4ia
>
> On 4/29/2014 9:50 AM, Joe Subich, W4TV wrote:
>> Buck,
>>
>> Where (how) are you connecting between the K3 and MK II?
>>
>> You should use a the stereo audio cable supplied with MK II to connect
>> the 3.5mm "pigtail" on the LINE OUT plug of the DB3-EL-K23 or K3R
>> cable set to the "Sub RX" jack on the back of MK II.
>>
>> Sub RX audio is present *only* when the "SUB" icon is displayed on
>> the K3 display (DUAL or DIVERSITY).  If the Sub RX is on and you
>> have audio in right headphone connected to the headphone jack but
>> no audio in the right channel (ring) of the LINE OUT (or tip of the
>> pigtail on the DB37-EL-K23/K3R) I would check L2 on the KIO3 Audio
>> I/O board.
>>
>> Check for audio directly at the LINE OUT jack and at the "pigtail"
>> in case you've snagged the pigtail and broken a wire in either jack.
>>
>> 73,
>>
>>    ... Joe, W4TV
>>
>>
>> On 4/29/2014 8:22 AM, K4ia via Elecraft wrote:
>>>   I played with that setting to no avail.   I am going into a Microham
>>> KeyerII which has a separate audio line for the Sub Rx.  If I plug
>>> headphones into the Line Out jack on the back of the K3, I hear signals
>>> on the left side but nothing on the right so I am convinced it is the
>>> output from the K3 that is missing, not an issue with the computer or
>>> MKII.
>>>
>>>
>>> Buck
>>> k4ia
>>> K3# 101  KX3 #715
>>>
>>> On 4/29/2014 8:05 AM, Sam Morgan wrote:
>>>> hmmm, what is your Line Out set to?
>>>> mine is the recommended 010
>>>> also is the computer a desktop or laptop?
>>>>
>>>> On 4/29/2014 6:47 AM, K4ia wrote:
>>>>> Thanks Sam but that isn't it.  I get the Sub RX audio just fine in the
>>>>> headphones.
>>>>>
>>>>> What I am missing is the Sub Rx on the right channel of the Line Out
>>>>> jack on the back of the radio.
>>>>>
>>>>> Buck
>>>>> k4ia
>>>>> K3# 101  KX3 #715
>>>>
>>>
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