[Elecraft] W2 Wattmeter alarm function doesn't activate on hogh SWR

[Vic Rosenthal K2VCO]

Here is a reply that I received from another fellow on the reflector. I 
followed his advice and it solved the problem (it was a direct reply so 
I won't give his name or call, but I was very grateful for his help)!

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You have to set the alarm SWR level by using the “[“ and “]” commands 
(no quotes) in the W2 Utility program. [ lowers the SWR, ] raises it. 
The initial value in the firmware is undefined, so you have to set it 
yourself. You may have to issue multiple [ or ] commands to get a valid 
response from the W2. This is a known firmware bug which is being worked 
on, as is a few others. Another bug is that after the SWR alarm trips, 
you have to push the “sensor” button multiple times to get the W2 to 
reset, but if you have set PWR (serial) to PEP in the W2 GUI application 
(not utility program), it will reset after one attempt.
------------------------------------------------------------

Note that this is done using the W2 Utility program, which is not the 
same as the W2 interface program. They are both downloadable from th 
Elecraft site.

On 12/29/2013 7:10 AM, Ken Roberson wrote:
> Vic,
>
> OK , Same here , And right when I'm setup to use that feature .
>
> 73 Ken K5DNL / WG2XXM
>
>
>
> On Saturday, December 28, 2013 10:43 PM, Vic Rosenthal K2VCO
> <k2vco.vic at gmail.com> wrote:
> Hello folks,
>
> I sent this to Support, but they are probably resting up until Monday,
> so I thought I would ask here. Has anyone had this problem with the W2
> wattmeter?
>
> I just assembled my unit. It seems to work correctly except that I can't
> enable the alarm function.
>
> 1. When I turn the W2 on, I hear the relay click, and it does interrupt
> the ptt at this point.
>
> 2. The W2 utility program (USB, running on XP) finds and communicates
> with the W2. When I click on the ALARM button, the label changes from
> OFF to ON.
>
> 3. But when I test it by transmitting into a 'wrong' antenna (SWR=13:1)
> it does not flash LEDs or activate the relay.
>
> 4. Firmware is 1.00 and utility program is also 1.00.
>
> Has anyone had a similar problem?
> --
> Vic K2VCO
> Fresno CA
> http://www.qsl.net/k2vco/

-- 
Vic K2VCO
Fresno CA
http://www.qsl.net/k2vco/