[Elecraft] K3 Questions

[n4lq]

Confusion still reins about the front panel mic. jack. The manual says pin 6 
has 8v. This post says "5v when BIAS is on". So I measured it.
Front Panel Mic. Jack:
Pin 2 (PTT) has 5V no matter if BIAS is on or off.
Pin 6 has 8 V always on.

Steve Ellington
N4LQ at insightbb.com
----- Original Message ----- 
From: "lyle johnson" <kk7p at wavecable.com>
To: "Joe Word" <joe.n9vx at gmail.com>; <elecraft at mailman.qth.net>
Sent: Thursday, May 15, 2008 10:55 AM
Subject: Re: [Elecraft] K3 Questions


>> 1. How many volts is the mic bias?
>
> Rear Panel: 8V when BIAS is on.
> Front Panel: 5V when BIAS is on.
> Front Panel Mic Jack pin 6: 8V always on.
>
>> 2. Why does the filter selection always end in 5 (2.65, 2.75, 2.85 & 
>> etc)?
>
> The filter system is currently handled in 50 Hz steps.  Might change in a
> future firmware rev.
>
>> 3. Can the Absolute S Meter function be set to ignore the RF Gain 
>> setting?
>
> It always takes the IF AGC control voltage into account.  Since that 
> voltage
> could be generated by a signal or the RF Gain control, the S Meter assumes 
> it
> is a signal and applies it to the calculation.
>
> 73,
>
> Lyle KK7P
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