[Elecraft] K3 no mod from FP conn
Don Wilhelm
w3fpr at embarqmail.com
Fri Nov 16 16:31:17 EST 2012
I recall that some posts ago, you said you have 5 volts on pin 1 of the
front mic jack. That fact alone says bias is set on for the front mic.
Go to the MAIN MENU : MIC SEL entry
Then select FP.x (x = H or L)
You will likely see "bIAS" in the display - Tap the "2" button to turn
it off.
Your dynamic microphone does not need bias, and may in fact not work
with bias turned on. Some dynamic microphones can be damaged by
applying bias to them.
Even if they are not damaged, they certainly will "sound funny" with
bias turned on.
73,
Don W3FPR
On 11/16/2012 3:56 PM, Guy Olinger K2AV wrote:
> You have not yet mentioned tapping "2" with MAIN:MIC SEL on to toggle the
> bias. The bias for FP.x and the bias for rP.x are independent and set by
> tapping "2" when you have either of them selected.
>
> The bias on the front pin should toggle on and off with the menu display
> going back and forth between "FP.x bIAS" and "FP.x " .
>
> Does it not do this?
>
> 73, Guy.
>
> On Fri, Nov 16, 2012 at 1:17 PM, Jan Erik Holm <sm2ekm at bdtv.se> wrote:
>
>> Yes MIC BTN....understand, it´s off anyway.
>>
>> MIC SEL....yes I know.
>>
>> I was looking in all menus for the bias since I was
>> thinking that it was the culprit but didn´t find it.
>> However since it works from the rear panel connector
>> and not the FP connector can it still be the bias?
>>
>> /Jim
>> -------
>> On 2012-11-16 17:52, Don Wilhelm wrote:
>>> Jim,
>>>
>>> The MIC SEL menu item is found in the main menu. The entry in the
>>> CONFIG menu is MIC BTN which is for the :MIC BUTTONS - that is the up
>>> and down buttons if they are present.
>>>
>>> 73,
>>> Don W3FPR
>>>
>>> On 11/16/2012 11:11 AM, Jan Erik Holm wrote:
>>>> OK Guy,
>>>>
>>>> Well if it works from the rear bias must be off....or???
>>>>
>>>> I have in CONFIG "mic bnd" off ( I think it was).
>>>>
>>>> But will try this tapping "2"
>>>>
>>>> /Jim
>>>>
>>>
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