I think you'll appreciate the internal tuner for portable operation. For
me, having an internal tuner is a big incentive. Being in the rig's
package, it takes up less packing space and has no extra cables to hook
up. Connect the KX3 to an antenna and paddle or microphone, and it's on
the air.
665 "CA" would be cranking amps (normal temperature), vs. the lower
"CCA" rating which is cold cranking amps. Unlike marine or RV batteries,
a starting battery have low ampere hours for its size: it's optimized
for high current loading, not for run-time.
I agree with those who suggest a good q
Using 400Hz power is risky, because the current in the RFI bypass
capacitors will much higher than normal. The leakage current through the
capacitors to the output and other accessible parts will be high,
possibly high enough to be a shock hazard. Running a 50-60Hz product
from 400Hz power may
Mine performed very well: 305 QSOs and 72 sections for 10 hours of
operating time, using my HF6V vertical antenna. The great dynamic range
and no-ring filtering makes a receiver that's easy on the ears: it is
much less fatiguing than my old rig. When the clock struck 0300Z, I said
"What? Time's
It is a low power USB device, because it does not power anything in the
rig. The only connections are TX data, RX data and common (ground)--see
page 5 of the KX3 manual. It won't strain either of those USB hubs.
--Tim (KR0U)
I bought a Mac with only four USB ports and am going to purchase a p
The basic D-104 (without amplifier) is a crystal microphone, designed
for very high impedance (>100K ohm), and delivering fairly high output
voltage. It worked well with the vacuum tube amplifiers used when the
D-104 was new. The K3 (and other modern rigs) have much lower input
impedance and wi
What Jim says here is correct.
The old exception that allowed returning 120V loads to the bare or green
grounding wire of a 240V circuit was very limited, allowed only for a
few large appliances (dryers, stoves/ovens, and water heaters IIRC)
which would be disconnected only for maintenance or
It sounds like a polarity problem. The line cord feeding the variac may
be reversed, or the switch may be in the neutral instead of the 120V
line (or if it's a double-pole switch, one pole may have failed "On".)
Easy way to tell: check voltage from neutral to ground with the switch
on. If it's
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