[Elecraft] New Firmware (k3fw5r57) Causes Odd Sound

[Phil Wheeler]

Have you looked here 
http://www.elecraft.com/K3/k3_app_notes.htm Bob?

Phil W7OX

On 2/24/17 2:24 PM, Bob wrote:
> Interesting....
>
> That mod is not shown in the Elecraft web 
> pages.  I did the KSYN3A updates in my K3 with 
> the sub RX.   How would I know if I need this 
> mod unless someone points it out to me on the 
> air? My serial number is in the 5K range.
>
> One of the allures of the Elecraft brand is the 
> ability to keep current.   That should not mean 
> just firmware or purchase of major module 
> updates.  I'd like to see a mod list for the 
> subtle hardware changes too.   I may not decide 
> to do them immediately but would most likely do 
> any the next time the rig is removed from its 
> desktop position.
>
> Same goes for other Elecraft gear like the 
> KAT500 and KPA500. For the XG3  there was a 
> recent firmware update to it.  As of now I see 
> no need for it but knowing it exists I would do 
> it next time I use the XG3.
>
> Hopefully the powers in charge can consider a 
> more complete mod/update listing.   Maybe a 
> criterion to make the list could be, "What would 
> the factory do?" By that I mean which are 
> important enough for them to do when a piece of 
> equipment is returned for repair and updates.
>
> 73,
>
> Bob
>
> K2TK ex KN2TKR (1956) & K2TKR
>
>
> On 2/24/2017 3:21 PM, GRANT YOUNGMAN wrote:
>> Is it possible you need the KPAIO3MDKT? This 
>> cures some issues with electrical fan noise 
>> getting into the transmit signal under some 
>> conditions after the KSYN3A is installed in all 
>> K3 radios and K3S radios before serial (about) 
>> 10730.
>>
>>
>>> On Feb 23, 2017, at 9:42 AM, ke9uw 
>>> <c-hawley at illinois.edu> wrote:
>>>
>>> I set the TX GATE to ON 10 and the complaints 
>>> have been eliminated...although
>>> one fellow is still straining to hear something.
>>>
>> Grant NQ5T
>> K3 #2091, KX3 #8342