[Elecraft] K3 - Bug in firmware found?

[Wayne Burdick]

It was never intended to make the K3 a 1-band radio, but I'll add this  
to the list.

73,
Wayne
N6KR


On Apr 4, 2011, at 5:00 PM, iain macdonnell - N6ML wrote:

> Just my impression... but I don't think the Band Map is really
> intended as a "lock out" - just a way to have normally-unused bands
> skipped when cycling through. If you only use one band, you wouldn't
> be expected to use the band up/down buttons at all ;)
>
>    ~iain / N6ML
>
>
> On Mon, Apr 4, 2011 at 11:48 PM, Jeff Cochrane - VK4BOF
> <vk4bof.elecraft at gmail.com> wrote:
>> Hi everyone,
>> Recently, Gary VK4FD and I were participating in the John Moyle  
>> Field Day here in Nth QLD. (It was on at the same time as CQ WW SSB)
>> As we were just 2 of 5 operators in the club station (VK4WAT) we  
>> decided to lock down our K3's so that the yaecomwood drivers would  
>> be able to use the K3's.
>> Each K3 was locked down so that it was a single band radio, mine on  
>> 40M and Gary's on 20M.
>>
>> That's when we noticed the possible problem.
>>
>> You can lock out all but one band in firmware but the radio will  
>> still change bands!
>>
>> On my radio, I had all bands but 40M locked out, yet it could still  
>> be changed to (And it was fully operational on) 20M and 80M even  
>> though those bands were locked out.
>> The behaviour on 20M is noted in brackets.
>>
>> Try the following:
>> Config: Band Map
>> Turn off all bands but 40M. (20M)
>> Exit Config menu:
>>
>>> From 40M band. (20M)
>> Press Band UP
>> Rig changes to 80M. (40M)
>> Press Band Up again.
>> Rig changes back to 40M (20M)
>>
>>> From 40M band:
>> Press Band Down
>> Rig changes to 20M. (15M)
>> Press Band Down again
>> Rig changes back to 40M (20M)
>>
>> Note that at no time does the rig change to one of the so called  
>> WARC bands in these 2 tests.
>> However, if the test is done with the rig only having 30M enabled,  
>> then shifts to 5MHz and 17M occur.
>>
>> As my rig has the 2M internal transverter I have also tried that  
>> band with the following results:
>> 2M band enabled, all others locked out.
>> BND UP selects 10M
>> BND DWN selects 80M
>>
>> The behaviour is similar on all bands when only one band is enabled.
>>
>> In each rig we also tried with 2 bands unlocked and each rig  
>> performed as it should with all bands but the 2 selected for  
>> operation being locked out and unable to be used.
>> So it appears that this issue occurs only when all but one band is  
>> locked out.
>>
>> This has been checked on both my K3 (Serial #4257) and Gary VK4FD's  
>> K3 (Serial #679) with the same results.
>> Gary's firmware revision at the time was v 4.25, mine was v 4.30  
>> and although I now have 4.31 in the rig it still does this behaviour.
>>
>> I'd like others to try the same procedure to see if the same  
>> results are found and then we can get Wayne to checkout the firmware.
>>
>> Over to you all.
>>
>>
>> Jeff Cochrane - VK4BOF
>> Innisfail, QLD, Australia
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html