[Elecraft] KPA500 WS power resolution

ANDY DURBIN a.durbin at msn.com
Fri May 18 13:47:03 EDT 2018


Sorry, there was a typo in the table.  It should read:


WS pwr  LP100 pwr

00            24.9

10            25.8

25            26.4   <

25            28.7

30            29.8

30            39.6

40            40.3


73,

Andy k3wyc



________________________________
From: ANDY DURBIN <a.durbin at msn.com>
Sent: Friday, May 18, 2018 10:40 AM
To: elecraft at mailman.qth.net
Subject: KPA500 WS power resolution


The KPA500 provides the ^WS; serial interface interrogation which returns output power and SWR.  The power and SWR are reported for STBY and OPER modes.   In OPER mode the power seems to have a resolution of 1 Watt.  In STBY, if I increment my drive power in 1 Watt steps the power reported by ^WS;  jumps from 30 to 40 with no intermediate steps.


WS pwr  LP100 pwr

00            24.9

10            25.8

25            29.4

25            28.7

30            29.8

30            39.6

40            40.3


Is this very low resolution of WS power in STBY mode intentional? (firmware 1.54).


Thanks,

Andy k3wyc


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