Joshua,
If you have thoughts of doing the extended calibration, know that is not
done at the factory for either kits or factory assembled units. OTOH, if
you are contemplating the standard calibration, order the filter at the
same time as your KX3 and the two will be calibrated together for you.
If you want (need) the extended calibration (and temperature
compensation), that is something you would have to do yourself, so that
negates the advantage of ordering the two at the same time.
Evaluate that against the 'girl-friend expense exposure' to arrive at a
final decision.
The KX3 will operate just fine in casual operating conditions without
the filter, but if you get into contest or DXing in crowded adjacent
signal band conditions, you will want the filter.
73,
Don W3FPR
On 6/2/2014 9:00 PM, Matt VK2RQ wrote:
Calibration is not hard, you just need some sort of signal source. I used a
second ham rig connected to a dummy load, loosely coupled to the KX3 with a
short length of insulated wire placed nearby. Even if I ordered the
radio+filter pre-calibrated in the factory, I'd still go through the RX nulling
procedure, since you can do it per band (I think when the KX3 first came out
the factory would only calibrate on one band and extrapolate from there, but
then they released a new firmware+procedure allowing the user to custom
calibrate on each band individually. Not sure what the standard factory
calibration procedure is there days).
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