K2 Antenna connector

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K2 Antenna connector

JEAN-FRANCOIS MENARD-3
Hi,

I would like to know if I use my K2 with the KPA-100 for outdoor  
operation, and if I turn off the KPA-100 from the menu and also if I  
powered my K2 from the samll DC connector instrad of the Powerpole  
connector ... May I use the BNC antenna connector instead of using  
the SO-239 antenna connector on the KPA-100 ???

73

=============================================
JEAN-FRANÇOIS MÉNARD / VA2VYZ

ELECRAFT KX1 #999, K2 #4130
FISTS #11896

Pour visitez mon site Internet / To visit my website :

http://homepage.mac.com/jfmenard
=============================================



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RE: K2 Antenna connector

Don Wilhelm-3
Jean-Francois,

Ther is no need to turn off the KPA100 in the menu - just remove the power
from the KPA100 and power the base K2 at the coaxial power connector - the
display will come up with 'No PA PS' when you power the base K2 and you will
have the full 0.1 to 15.2 watt power range available.

You can certainly take the output from the low power BNC, but I would not
recommend it - you would be feeding the KPA100 input (still connected to the
AUX RF connector) in parallel with your antenna load - that is just 'not
right', so it would be best to take the output from the KPA100 SO-239
connector - the KPA100 will be in 'bypass' with only its Low Pass Filters
and the wattmeter in the circuit.

Note well that the wattmeter must be in the path to the antenna in order for
the K2 to correctly control the power output - so by using the BNC
connector, the wattmeter would not see the true output power and the
microprocessor would be trying to set the power based on erroneous
information being sent to it from the wattmeter residual data.

Bottom line - use the SO-239 antenna output unless you completely remove the
KPA100.

73,
Don W3FPR

> -----Original Message-----
>
> I would like to know if I use my K2 with the KPA-100 for outdoor
> operation, and if I turn off the KPA-100 from the menu and also if I
> powered my K2 from the samll DC connector instrad of the Powerpole
> connector ... May I use the BNC antenna connector instead of using
> the SO-239 antenna connector on the KPA-100 ???
>
> 73
>
> =============================================
> JEAN-FRANÇOIS MÉNARD / VA2VYZ
>
>

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