[Elecraft] KX1 Power Output

Tom Crites crites57 at gmail.com
Mon Jan 30 21:44:48 EST 2012


I hope you can read this, but do the values look reasonable, for a KX1
with the output power mod.  Peak to peak (Vpp) voltages and RMS (Vrms)
were taken with a high end O'scope and used to compute the Power
values (Ppp and Prms).

Seems the KX1 read the supply voltage about 0.4 volts low.

Thanks,
Tom Crites, KC8SES



KX1 Power Output				
				
Supply Voltage	14.0			
KX1 Dispaly Voltage	13.6			
Freq (MHz)	                 3.675	7.100	10.100	14.025
Output Vpp	                43.10	35.00	34.70	35.30
Output Vrms	                15.08	12.28	12.13	12.38
ATU Displayed power	        4.5 to 5.0	3.00	         3.00	        3.50
Ppp (watts)	                 4.53	        2.99	          2.93	3.04
Prms (watts)	                4.43	        2.94	          2.87	2.99
				
Supply Voltage	9.5			
KX1 Dispaly Voltage	9.1			
Freq (MHz)	              3.675	 7.100	10.100	14.025
Output Vpp	              29.40	 24.40	24.70	25.60
Output Vrms	              10.14	 8.43	        8.52	        8.94
ATU Displayed power	        2.10	 1.50	        1.70	        1.80
Ppp (watts)	                2.11	 1.45	        1.49	        1.60
Prms (watts)	                2.00	 1.39	        1.42	        1.56


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