In the interest of future readers, here is what I found.
I had the LIN OUT menu item set to NOR 10 as recommended. In fact, they
warn of going over that level. However, when you turn on the SUB RX,
the signal is split and you lose 3db. This can be heard in the
headphones. It seems it also affects the Line Out.
When I increased the LIN OUT level to 35, the Sub Rx could be heard in
the right channel of the Line Out. I have no idea how linear the LIN
OUT level setting is but I suspect that increase to 35 is what was
needed to overcome the attenuation that occurs when the Sub Rx switches in.
Now the issue is, the output seems unbalanced with the Main Rx signal on
the left channel of the Line Out jack being louder than the Sub Rx
signal on the right channel. I am able to compensate for this by
turning down the Main Rx gain control on the MicroHam MKII. I wasn't
able to even them out with the RF Gain control on the K3 but I will play
around with that some more.
Buck
k4ia
On 4/29/2014 11:43 AM, Buck - k4ia via Elecraft 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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