[Elecraft] Re: K2 VFO tuning problem on TRN 6 only

[wayne burdick]

On Mar 19, 2006, at 6:55 AM, bill4570 at comcast.net wrote:

> Hi folks,
>
> An odd problem popped up with the K2/XV station here.  I had occasion 
> to change all the assignments of all the TRN channel assignments in 
> both the transverters and of course in the K2 menu.  Everything works 
> FB except the TRN 6 channel.
>
> On that channel only, the K2 VFO refuses to tune.....

Hi Bill,

I posted this several months ago, but it bears repeating.

Some K2 owners reported a VFO tuning problem on transverter band 6. 
I've duplicated the problem, and after tracing the program, I found 
that the EEPROM wasn't properly initialized on this band. Among other 
things, the "channel scan" feature was getting turned on.

It turns out that there's a simple work-around for this, which need 
only be done one time:

1. Set up TRN6 as desired using the secondary menu. (Refer to page 17 
of the K60XV manual, or to any recent edition of the K2 owner's 
manual.)

2. Exit the menu, then switch to TRN6 using BAND+/-.

3. Use Direct Frequency Entry (see K2 manual) to set the VFO to the 
lower edge of the transverter band on VFO A. Repeat for VFO B. DO NOT 
move the VFO yet.

4. Change the operating mode, even if it appears to already be 
correctly displayed; the mode data may be invalid.

5. Enter the menu again and find the RATES entry. EDIT the parameter. 
Then tap DISPLAY until NOR is displayed. (You'll also see the other 
channel scanning options go by.)

6. Exit the menu. Switch to another band, then back to transverter band 
6 (this updates the associated area of EEPROM).

You should now be able to tune the VFO normally on this band. If you 
have a similar tuning problem on any other band, it's probably due to 
channel scan being turned on; turn it off using the RATES menu entry as 
above.

We'll fix this in a future version of firmware, but instead of holding 
your breath, please try the above   ;)

73,
Wayne
N6KR