[Elecraft] Problems with K3 firmware update

[Joe Subich, W4TV]

On 2014-08-14 9:00 PM, Jim N7US wrote:
> I connected an A/B switchbox to switch the radio between the MKII and
> a serial port on the computer (or an Edgeport US/serial box).

As did I ... COM1 on the motherboard goes to a 4 port switch.  Two of
the ports go to two ports switches on each K3/P3.  The third port goes
to the cable for the XG3 and the fourth port goes to a AA5AU style
CW/PTT/FSK interface for general testing.

73,

    ... Joe, W4TV


On 2014-08-14 9:00 PM, Jim N7US wrote:
> I connected an A/B switchbox to switch the radio between the MKII and a
> serial port on the computer (or an Edgeport US/serial box).  It has been
> easy to switch the K3/P3 to the serial port for firmware updates.
>
> 73, Jim N7US
>
>
>
> -----Original Message-----
>
> Every microHAM Users Manual includes a specific warning *NOT* to upload
> *any* transceiver firmware via the microHAM device.  The microHAM device
> constantly polls the transceiver for frequency and mode.  Those polls are
> not compatible with firmware uploads.
>
> 73,
>
>      ... Joe, W4TV
>
>
> On 2014-08-14 7:30 PM, Don Wilhelm wrote:
>> Kurt,
>>
>> Both Microham and Elecraft warn that one should not attempt firmware
>> downloads through the MicroHam device.  Other K3Utility functions work
>> fine through the Microham device.
>>
>> If you have a real serial port on the computer, that is the preferred
>> connection, otherwise a good USB to serial adapter is the best answer.
>> The preferred adapter is one using an FTDI chip. Others may work (and
>> I can also recommend EdgePort).
>>
>> BTW - there are counterfeit FTDI and Prolific USB to serial adapters
>> on the market.  Both Prolific and FTDI have created new drivers for
>> Windows
>> 7 and above that detect those counterfeits and render them unusable -
>> so steer clear of bargain priced adapters whose instructions tell you
>> to turn off Windows updates and run their 'special' drivers.
>>
>> The Elecraft KUSB cable uses an authentic FTDI chip.  I have also had
>> success with a Keyspan adapter that was supplied for testing by a
> customer.
>>
>> 73,
>> Don W3FPR
>>
>> On 8/14/2014 7:02 PM, Kurt Wiksten wrote:
>>> Thanks to everybody for your advice.
>>> But my problem still not solved, because I am communicating with the
>>> K3 via my Microkeyer2.
>>> Reading the K3 Utility Helpfiles shows that it might be a problem
>>> that my USB to serial connection is via my Microkeyer2 and the
>>> recommendation is to change the cabling so that the PC is connected
>>> directly to the K3 and that cable does not fit the K3 RS232 port.
>>> I suppose I will have to order the KUSB-cable from Elecraft.
>
>
>
>
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