date:20190624

[Elecraft] K3S glitching on startup

2019-06-24 Thread Frank O'Donnell

This evening I used my new K3S for a normal session of FT8 (K3S 
connected to computer via a single USB cable for both CAT control and 
audio transfer), then powered it down.


When I powered it up later, the following occurred:

-- It did not display the normal startup message

-- It rapidly switched from DATA to CW mode, remaining there

-- Started beeping a number of times per second, continuing indefinitely

-- Showed "VOX -- OFF" on the display.

Wondering if this could have been caused by unintended pressure on the 
CW paddle, I unplugged it but this made no difference. The K3S continues 
to go into this state each time I power it down and restart it. I'm 
unable to change mode, band, etc.


Any suggestions for resolving this? Thanks in advance.

73,

Frank K6FOD

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Re: [Elecraft] KX3 batteries

2019-06-24 Thread Mark Goldberg

I've brought the 3 Ah ones on aircraft multiple times and had no issues. I
brought a copy of the UN safety certification that I got from the battery
company but have never been asked for it.

The batteries did save me from having my bag checked once though. I put my
bag in the overhead. Someone else came by and moved my bag trying to get
theirs in the overhead and the overhead would not close. The flight
attendant, not knowing what happened wanted to check my bag. I stated it
had lithium batteries in it and she checked the bag belonging to the person
that moved my bag. I didn't have to argue at all. Karma!

LiFePO4 batteries are also safer than other Lithiums, but they seem to be
treated the same by the airlines and shipping companies.

73,

Mark
W7MLG

On Mon, Jun 24, 2019 at 7:23 PM Eric - Gmail 
wrote:

> The FAA rules on taking batteries on airplanes can be found in the
> document "Batteries Carried by Airline Passengers: Frequently Asked
> Questions" at
>
> www.faa.gov/about/office_org/headquarters_offices/ash/ash_programs/hazmat/passenger_info/media/Airline_passengers_and_batteries.pdf
>
> will allow you to take a battery as large as 160Wh. The larger Bioenno's
> (9AH and up) are over 100 Wh
>
>
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The FAA rules on taking batteries on airplanes can be found in the
document "Batteries Carried by Airline Passengers: Frequently Asked
Questions" at
www.faa.gov/about/office_org/headquarters_offices/ash/ash_programs/hazmat/passenger_info/media/Airline_passengers_and_batteries.pdf

"Lithium ion batteries (a.k.a.: rechargeable lithium, lithium polymer,
LIPO, secondary lithium). Passengers may carry all
consumer-sized lithium ion batteries (up to 100 watt hours per battery).
This size covers AA, AAA, cell phone, PDA, camera,
camcorder, handheld game, tablet, portable drill, and standard laptop
computer batteries. The watt hours (Wh) rating is marked
on newer lithium ion batteries and is explained in #3 below. External
chargers are also considered to be a battery.
With airline approval, devices can contain larger lithium ion batteries
(101-160 watt hours per battery), but spares of this size are
limited to two batteries in carry-on baggage only. This size covers the
largest aftermarket extended-life laptop batteries and
most lithium ion batteries for professional-grade audio/visual
equipment."

Last month, I took a KX3 to Sint Maarten (PJ7). My battery was a Bioenno
6AH, equivalent to 72 watt hours. It worked like a charm!

You need to check with your airline, as some -- but not all -- airlines
will allow you to take a battery as large as 160Wh. The larger Bioenno's
(9AH and up) are over 100 Wh

Bioenno has listings on their website of recommended batteries for most
commonly available rigs, based on your duty cycle.

73,
Eric W3DQ

--
Jim Brown wrote:

Yes. This ham-friendly company sells a wide range of LiFePO4 batteries.
Charge before you leave home (all Li batteries require a charger
designed for their specific chemistry, voltage, and capacity), connect
to your KX2/3 external power jack. Choose the capacity/weight that
suits

your planned use.

$50 will get you 3Ah that weighs 13 oz; add $15 for the charger. A 6Ah
battery goes for $80, approximately twice the weight. I paid about $195
for a 20Ah battery that weighs 5.4#, +$20 for a faster charger.

https://www.bioennopower.com/collections/12v-series-lifepo4-batteries

73, Jim K9YC

J
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