Posted by
Dunc Carter - W5DC on
Dec 20, 2009; 9:14pm
URL: http://elecraft.85.s1.nabble.com/Why-K3-appears-noisy-tp4181768p4195996.html
I haven't read all the details but I have the impression that you need
to be able to set 1 and 50 microvolts which requires rather considerable
attenuation for some common signal generators such as my Elenco SG
9500. Is my impression correct?
On the Clifton Laboratories web site, there is a graph labeled Elecraft
K3 Transceiver Incremental Incremental RF Gain Reduction 9dB) versus RF
Gain Value. Is this effect along with basic calibration that the gain
calibration is intended to correct? My K3 doesn't have the
discontinuity or discontinuities that others have mentioned; I just curious.
See:
http://www.cliftonlaboratories.com/elecraft_k3_and_manual_rf_gain_control.htmDunc, W5DC
Radio Amateur N5GE wrote:
> On Sun, 20 Dec 2009 07:53:45 -0800 (PST), "Julian, G4ILO"
> <
[hidden email]> wrote:
>
> In answer to K2MK's question...
>
> You need to do the RF Gain calibration with a signal generator to be
> most accurate, but you don't have to buy the XG2. You could use any
> signal generator.
>
> Tom, N5GE
>
>
[hidden email]
> K3 #806 with SUB RX, K3 #1055, PR6,
> XV144, XV432, KRC2,
> W1, 2 W2's and other small kits
>
> 1 K144XV on order
>
>
http://www.n5ge.com>
http://www.swotrc.net>
>
>
>
>>
>> Mike K2MK wrote:
>>
>>> I took a look at the RF Gain Calibration on the K3 Utility and they offer
>>> two ways of doing it. One requires a signal generator and one uses factory
>>> default values. Is the factory default method satisfactory or is it
>>> necessary for us to purchase the XG2 to do the calibration properly.
>>>
>>>
>> No "official" reply to this yet. I assumed that the factory default option
>> was simply to restore the radio to its original state if the user wasn't
>> happy after doing the calibration.
>>
>> -----
>> Julian, G4ILO. K2 #392 K3 #222.
>> * G4ILO's Shack -
http://www.g4ilo.com>> * KComm -
http://www.g4ilo.com/kcomm.html>> * KTune -
http://www.g4ilo.com/ktune.html>>
>
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