[Elecraft] K2/KPA "Low Batt" warning and beep

[Ron D'Eau Claire]

11.5 volts is where you should start seeing LO BATT on the K2 display. I
don't recall a audible tone, but it's possible. 

The K2 alone is spec'd down to 9.5 VDC supply, but at reduced output as
follows:

9.0 V min for 2 watts out
9.5 V min for 5 watts out
10.0 V min for 7 watts out
10.5 V min for 10 watts out

While you may be able to get more than the indicated power out for a given
voltage, IMD will increase or other issues may crop up. The manual says to
"monitor transmitter output signal". 

The KPA100 is spec'd for a minimum voltage of 11.5 volts. 

AFAIK, the warning level is not adjustable. 

73, Ron AC7AC

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Chris
Kimball
Sent: Friday, November 27, 2015 7:19 AM
To: elecraft at mailman.qth.net
Subject: [Elecraft] K2/KPA "Low Batt" warning and beep

I'm checking my K2/KPA rig as the battery runs down.  I'm getting a sporadic
"low Batt" indication on the screen and a beep every once and a while during
transmit. The supply voltage under load is still about 11.5 V.

Is this coming from the K2 or the KPA?

Is the level at which this warning occurs settable?

Is this a warning to be concerned about?  The K2 is said to operate to 10V
or so.  Is the KPA likely to go to sleep before then?

Thanks,

Chris
NQ8Z



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