[Elecraft] Noisy RX redux

[Mike K2MK]

Hi Mike,

For those wondering what Mike found. There are two ways to go. A complete
DSP board swap or a DSP board modification. 

K3DSPUPGD for $109.95 (this is the board swap)
or
K3DSPLPF for $39.95 (this is the board mod)

Both items can be found here:
http://www.elecraft.com/order_form_parts.htm

Serial numbers might not be the best clue for those buying a previously
owned radio. The previous owner might have already made the improvement.

73,
Mike K2MK



Mike Reublin wrote
> I found the mod.
> 
> On Jul 4, 2013, at 6:38 PM, Mike Reublin <

> nf4l@

> > wrote:
> 
> 
>> On Jul 4, 2013, at 5:47 PM, Mike Reublin <

> nf4l@

> > wrote:
>> 
>>> Shortly after I got K3 3935 in Sept. of '09, the furor over noisy RX
>>> kinda peaked, and the result was a board swap.
>>> 
>>> A friend just bought a used K3 with a slightly earlier SN, and the RX
>>> background is very harsh and sharp sounding. We both came to Elecraft
>>> from a PRO II/III where the background in an A/B comparison is a soft
>>> swhoooooooooooosh.
>>> 
>>> I'd like to check and see if it has the same mod, but I've slept since
>>> then and cannot remember what the mod was called, or how to check for
>>> it. A tour of the mods page didn't kick my recaller into gear.
>>> 
>>> A related wish: List the serial number when a mod goes into production. 
>>> 
>>> n unrelated wish: HAPPY 4th!
>>> 
>>> 73, Mike NF4L





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