16
Operating Tips
Though the KX3 is an excellent mobile platform, there are a few hints that may assist operators. Some
of these are described below. As emphasized elsewhere in this Guide, safety is a primary consideration.
While you’re stationary, put in the settings you’ll use while driving. Adjust the AF and RF GAIN
levels, and set the BAND and VFO A / B up near the frequency you intend to use. Turn the
PREAMP on or off as needed, and set the Noise Blanker on to kill ignition and other radiated
noise. Make sure all the KX3 cabling is in place, and that the rig is secured in its mount. Set the
MODE as desired.
‐ While driving, use the UP / DN buttons on the MH3 mic for frequency changes, rather than
twisting the VFO A knob. Avoid “frobbing” the VFO except as needed for fine tuning. The
mental feedback loop between turning the VFO knob and watching the display is potentially a
100% distraction from driving. However, you will need to make fine adjustments once in a
while. Instead of watching the display, listen to the signal instead, as you adjust the VFO.
‐ Unless you’re a seasoned CW op, stick to voice modes while driving. CW using the KXPD3
(attached to the KX3) is not recommended while mobile. If CW is your mode, you’ll likely want
to remote‐mount a key or paddle in a comfortable position, but probably away from the KX3.
‐ Use the SCAN function instead of “roving” via VFO A. This requires that a memory with A and B
frequencies be recalled before scanning. You may want to set up specific memories for mobile
operation just for this purpose. You can use the MH3 microphone’s UP and DN switches to halt
a scan in progress. The KX3 will scan manually if you use the mic switches ‐ either tap or hold.
‐ If you’re driving in the city, the KX3 could experience various signal degradations and
obstructions. Sources are buildings and other large objects like bridges, fence lines, high‐voltage
transmission lines, etc. These are unavoidable, and are part of the mobile operator’s
“landscape”.
‐ If you’re operating mobile in the countryside, you may notice several types of RFI. Sources
include: power lines and utility equipment, street lighting, diesel fuel injectors, ignition noise,
etc. The KX3’s Noise Blanker is very effective in eliminating these.
‐ Set up PF1 and PF2 for frequently‐used MENU functions. For example, PF1 can be set up to
toggle the backlight on/off, and PF2 set up for DUAL RX on/off. Don’t put yourself in a position,
while driving, of needing to access MENU functions at all.
