[Elecraft] K3 Question on KXV3B

[N2TK, Tony]

Tnx Wayne.
Sounds good. That is a good way to operate it. I will have to order it for
both K3's. That is K3 without the "S". :-)

N2TK, Tony

-----Original Message-----
From: Wayne Burdick [mailto:n6kr at elecraft.com] 
Sent: Friday, May 22, 2015 5:08 PM
To: N2TK, Tony
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3 Question on KXV3B


On May 22, 2015, at 12:41 PM, "N2TK, Tony" <tony.kaz at verizon.net> wrote:

> Does the preamp on the KXV3B replace the current preamp or is it in 
> addition to?
> I assume it is in addition. How do you turn it on and off?

Preamp 2, on the KXV3B, is in addition to the normal preamp (preamp 1). But
firmware will only let you turn on one or the other -- not both. When preamp
2 is ON, it totally dominates the noise figure equation, so there's no value
in also turning on preamp 1. Preamp 2 has a gain of 20 dB, while preamp 1
has a gain of 10 dB.

To turn preamp 2 ON, you first have to enable it on one or more of the
applicable bands using the CONFIG:PREAMP2 menu entry. You can enable it on
12, 10, and 6 meters.

Once preamp 2 is enabled, tapping PRE cycles through OFF/PRE1/PRE2 on the
applicable band. Other bands will only show OFF/PRE1.

When PRE2 is selected, the PRE icon flashes slowly as a reminder. 

73,
Wayne
N6KR



> Tnx
> N2TK, Tony
> 
> -----Original Message-----
> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of 
> Eric Swartz - WA6HHQ, Elecraft
> Sent: Thursday, May 21, 2015 12:12 PM
> To: Jim Lowman; elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 Question on KXV3B
> 
> Correct.
> 73,
> Eric
> /elecraft.com/
> 
> On 5/21/2015 8:49 AM, Jim Lowman wrote:
>> So, I assume that those of us who own the external preamp, don't need 
>> this new board?
>> 
>> 73 de Jim - AD6CW
>> 
>> On 5/21/2015 7:42 AM, Wayne Burdick wrote:
>>> The addition of the low-noise amplifier for 12-6 meters is the only
> change. 
>>> The module is compatible with either the K3 or K3S. The manual will 
>>> be posted when it's complete.
>>> 
>>> 73,
>>> Wayne
>>> N6KR
>>> 
>>> On May 21, 2015, at 7:22 AM, Bill Wiehe via Elecraft 
>>> <elecraft at mailman.qth.net> wrote:
>>> 
>>> 
>> 
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