Hi John,
Links to regulator and tuner schematics:
http://sdellington.us/hr/KX-1_regulator4.pdf
http://sdellington.us/hr/EFHW_Tuner2.pdf
A couple notes:
I had some trouble with the LT1965 regulator oscillating, probably due
to the lead inductance of the leaded (non-smt) capacitor I used, hence
the LC network. The MIC29150 regulator data sheet claims it works with
all capacitors, though I haven't tried it. If the MIC29150 is used, the
LC network is replaced with a short. The way I wired the regulator to
the KX1 required cutting a trace on the PWB, so the power could be
switched ahead of the regulator. This prevents the regulator from
discharging the battery when the KX1 is off. If you prefer not to cut
the trace, you could wire the batteries to the regulator input through a
connector, and just unplug that connector when you're not using the KX1.
The tuner is based on the Pacific Antenna BLT+, using most of the same
parts. I bought the BLT+ kit without the case, replaced the
transformer, and put it in my own box. The kit includes the N7VE SWR
bridge. Note that my version is only intended to match end fed half
wave multiples, with impedances from about 1,000 to 6,000 Ohms, and it's
strictly QRP.
73,
Scott K9MA
On 10/4/2016 13:04, John Ellsworth wrote:
Scott - I also have KX1. I have not taken it on bike trip yet, but it
does come along in the camper a lot.
I'd be interested in the details of your regulator and tuner. Thanks
for posting the note in the forum.
73 de JohnE/kd0nqc
On 10/04/2016 11:54 AM, K9MA wrote:
For what it's worth, here's my recent solution for bicycle portable
operation:
http://cwt1605k9ma.blogspot.com/2016/08/equipment.html
It weighs a bit more than Wayne's station, but I don't need trees to
hold the antenna up.
73,
Scott K9MA
--
Scott K9MA
[email protected]
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