My station has a relay system for switching the headphones between two
different radios, among other things. I had to add isolation
transformers for the same reason the K3 has them on the line outputs.
The loss in the transformers reduces the audio level too much for the
rear panel headphone jack to drive two sets of the low sensitivity
headphones I use. And I don't want a cable in the way to the front panel.
That's why it's "complicated".
73,
Scott K9MA
"Everything should be as simple as possible, but no simpler." -- Albert
Einstein
On 1/15/2019 23:38, Don Wilhelm wrote:
Last Field Day, my K3 was used at the CW station. Two sets of
headphones. One for the operator and one for the logger.
One was plugged into the rear panel Phones jack and the other was
plugged into the front panel jack. No problem, no splitter.
Ok, if there were folks nearby who wanted to listen in, we would
simply turn on SPKR+PHONES in the menu, and the speaker could also be
heard.
Very versatile. Why make it complicated - the K3 gives us the tools
to do it 'the easy way'.
73,
Don W3FPR
On 1/15/2019 11:23 PM, K9MA wrote:
I found that the level at headphone output, at least the rear panel
one, was too low to drive two pairs of headphones in parallel in my
setup, which includes some isolation transformers. The speaker output
works fine with the headphones. (Don't try this with super sensitive
low impedance headphones.) I just wired a switch to an external speaker.
73,
Scott K9MA
On 1/15/2019 20:51, Nr4c wrote:
Why use Line Out for speakers. There is a perfectly good jack marked
Speakers right next to the Phones jack. Be sure and use a Stereo
plug but it is for ........wait for it. Speakers!
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