> Do you know how I can verify that the mod was done before I try
> another solution?
Check your RF board to see if it is marked Rev H3 or later.
Also, check the resistance of the ONE resistor that was
changed. The information is in that modification pdf.
73,
... Joe, W4TV
On 6/6/2010 11:27 AM, QRZ wrote:
> Joe,
>
> I guess my confusion is that if the mod was included beginning in Sept 2009
> then I guess I'm back to square one with the SDR-IQ. Do you know how I can
> verify that the mod was done before I try another solution?
>
> Thanks and 73...
> George, WA1NTA
>
> -----Original Message-----
> From: Joe Subich, W4TV [mailto:li...@subich.com]
> Sent: Sunday, June 06, 2010 10:55 AM
> To: QRZ; Elecraft Reflector
> Subject: Re: [Elecraft] SDR-IQ
>
>
> > Thanks for the link, do you know if Elecraft included this mod and
> > when they may have started doing so, and if they did, how I can tell
> > that my K3 has it?
>
> The modification information indicates that it was incorporated in
> production beginning about 1 Sept 2009 (RF board Rev H3 and later).
>
> > With the age of this unit (#4249), I would prefer not to start
> > modifying it just yet, at least not until the warranty expires.
>
> That modification will not void the warranty if done properly
> (e.g. if you don't use a torch!). However, if you prefer to
> avoid modifications, the Clifton Labs buffer is an alternative.
> I messed up the link in the last response - here's the correct one:
> <http://cliftonlaboratories.com/z10000_buffer_amp.htm>
>
> 73,
>
> ... Joe, W4TV
>
> On 6/6/2010 10:10 AM, QRZ wrote:
>> Hi Joe,
>>
>> Thanks for the link, do you know if Elecraft included this mod and
>> when they may have started doing so, and if they did, how I can tell
>> that my K3 has it?
>>
>> With the age of this unit (#4249), I would prefer not to start
>> modifying it just yet, at least not until the warranty expires.
>>
>> It's unfortunate for me that I wasn't aware of this short fall
>> before purchasing what I was told was a good solution for the lack of
>> a panoramic display on the K3.
>>
>> Thanks to you and Don for the information. 73 George...WA1NTA
>>
>> -----Original Message----- From: Joe Subich, W4TV
>> [mailto:li...@subich.com] Sent: Saturday, June 05, 2010 10:10 PM To:
>> WA1NTA; Elecraft Reflector Subject: Re: [Elecraft] SDR-IQ
>>
>>
>> Unless you have performed the IF Output buffer gain modification
>> <http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf>
>>
>>
> or use the Clifton Labs broadband buffer amplifier between K3& SDR-IQ
>> <http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf>
>>
>>
> what you see is entirely normal.
>>
>> The unmodified K3 IF output is approximately 17 dB lower than the RF
>> signal input level.
>>
>> 73,
>>
>> ... Joe, W4TV
>>
>> On 6/5/2010 9:09 PM, WA1NTA wrote:
>>>
>>>
>>>
>>> Does anyone have the correct settings for the K3 to work properly
>>> with the SDR-IQ? I'm sure I've got something set wrong because when
>>> I connect the
>> IQ
>>> to the IF and switch output the levels seem very low, I can see
>>> signals on 40 but they don't seem representative of what I am
>>> hearing and what the S Meter is telling me. When I switch to 17, I
>>> can't see any activity on the scope, but I can hear signals on the
>>> band. However when I connect the antenna directly to the IQ and set
>>> EXT Radio back to none, I am able to observe signals and tune them
>>> in on 17 with no problem.
>>>
>>> Thanks in advance. George WA1NTA
>>
>>
>
>
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