Keith,
That was the problem. Somehow, I had accidentally bumped the variable
voltage control on the power supply down to 10 volts.
During the contest, I kept wondering why the dial screen was dimmer and
flickered during SSB transmit. I chalked that up to knowing I was using a
marginal AC
Yes, but the "BAT LOW" message has nothing to do with the clock battery.
BAT LOW means your supply voltage is below the level you have set in
Config Menu "BAT MIN".
From the manual;
BAT MIN 11.0 Low-battery warning threshold; 11.0 recommended. (This
refers to a battery used as the DC power
Henry,
The battery is *only* for the real-time clock. It does nothing else. Go
have fun!
--
73,
-de John "Curly" NI0K in rural Debs, MN USA
Hamshack Hotline: 610271
https://www.qrz.com/db/NI0K
Henry Pollock - K4TMC wrote on 3/25/2022 12:45 PM:
Just set up at portable location for the
Just set up at portable location for the CQ WPX Contest and am getting the
'Bat Low' warning.
Is it safe to operate for a few days, or do I need to go find a battery
before starting the contest?
73,
Henry - K4TMC
(K3 #98 with original battery)
The K3 DOES INDEED have an internal battery. It is a coin cell and is for the
clock. All memories are stored in non-volital memory. And there is no way
to tell if the battery is on its way out other than clock not keeping good
time.
Sent from my iPhone
...nr4c. bill
> On Dec 19, 2019,
David and all,
The battery in the K3 is ONLY for keeping the Real Time Clock alive, and
will last a very long time.
The memory does not need a battery.
73,
Don W3FPR
On 12/19/2019 1:03 PM, David Robertson wrote:
There is a battery in the K3. It is a coin cell for keeping memory alive.
If
There is a battery in the K3. It is a coin cell for keeping memory alive.
If the battery gets low the K3 might indicate a low battery.
73
Dave KD1NA
PS Happy holidays everyone!
From: Don Wilhelm
To: Mpridesti , "Elecraft@mailman.qth.net" <
Elecraft@mailman.qth.net>
Cc:
Bcc:
Date: Sat, 12 Jan
Tom,
I can answer about the Low Battery part of your question - that has to
do only with the power supply voltage delivered to the K3 (not the coin
battery for the Real Time Clock).
There is a BAT MIN menu item where you can specify the voltage below
which that message will be blinked on the
K3 #250 is connected to control RRC 1258 MkII. I have only been using
this setup for 4 days. With Win8.1 I find that when I start N1MM+ and
the control box, the N1MM does not 'see' the virtual com ports even
though the device manager does. I found that pullling out the USB plug
from the front of
I'm fairly new to the RR-1258 too, however I've noticed that things are
sensitive to the order in which stuff is turned on/off. The virtual
ports seem to come from the RR box. On my computer [Win 7], the Device
Mgr says the ports are there but they really aren't ... they're just
reserved for
I picked up a package from West Mountain Radio (I have no connection with them
other than being a customer) and have found it a good solution. It still
required buying a gel cell battery (not AGM).
No leaks, no overcharging, fused power distribution for 8 items I believe. The
whole station
Hi all
First time poster here - had a K3 for a few months now and really enjoying it
as the home station! Also finding this reflector of interest too!
I have been wondering about saving the pennies for a K3-10 as well to use out
portable this coming summer and wondered
...has anyone
Have you considered a K2, Chris?
It's a very capable rig, designed to take an internal battery. It's
probably less power-hungry than a K3, but I've not checked the figures.
Its one weakness, for me, has been transmit audio on SSB, although I
must admit I've not spent much time trying to
On Jul 20, 2010, at 9:00 PM, Wes Stewart wrote:
Joe took the words right out of my mouth.
Personally, I use an unnecessary boost regulator when on battery
power or a PS set to at least 14V otherwise.
[snip]
Unfortunately, this does not apply to transmit IMD. Since the K3
(like all
I'm using a TGE (N8XJK designed) boost regulator on my battery-powered setup.
By the K3 meter (when I get time I'll verify this) the supply voltage on
receive is 14.1 and on TX ~18A load, it's 13.8.
I have run some preliminary tests (better to follow when time permits) of the
IMD performance
What brand and model booster
provides 14 volts? The MFJ promises 13.8.
I know that the MFJ booster has a pot that lets you set the output voltage
(I have a MFJ-4416B). I'm pretty sure that TGE does as well.
Phil - AD5X
__
Elecraft
Interesting. I run a K3 off a couple of pseudo deep cycle 12 volt
batteries with an Iota smart charger hooked up. I run mostly digital
so IMD is important to me. The Iota runs between 13.1 and 13.6 volts
by my K3's meter. Would the difference between that and 14 volts make
a meaningful
If one is going to float this across a battery, need to take notice of
the normal float voltage for the cell. This is a nominal 13.8 which
is just a characteristic of an automotive six cell lead acid battery.
There are other kinds, and this 13.8 may change to something else.
If you can actually
Steve,
You can run the K3 directly from a battery, with or without a charger
running, and it will deliver full power within the supply range of
11-15V. You do NOT need a booster to supply 13.8V. We had consistent
agreement on this some months back in a similar thread.
As voltage goes down,
As voltage goes down, the K3 draws proportionally more current to
deliver the watts you desire. That's the same thing the voltage
booster does. It's another built-in feature of the K3.
Unfortunately, this does not apply to transmit IMD. Since the K3
(like all other solid state
Joe took the words right out of my mouth.
Personally, I use an unnecessary boost regulator when on battery power or a
PS set to at least 14V otherwise.
Of course if you want to annoy your fellow hams, go ahead and run your
K3 on 11V.
I don't know who the we were, but it didn't include me.
There is a mod for the Astron to set it up to float charge the battery
with a little cut to the PCB trace and a 10K resistor.
I have my shack setup with four 55Ah SLAs in parallel to the Astron. We
ran my K3 on FD with a single 55Ah SLA and made around 80 or possibly 100+
QSOs at 100W until I
On Thu, 15 Jul 2010 21:32:08 -0400, Steve Ellington wrote:
Is anyone using full time battery power and trickle charging?
Sure -- since about 2004, I've run all the gear in my shack from a big
12V deep discharge battery that is float-charged by a $10 dollar no-
name supply that I bought at a
Is anyone using full time battery power and trickle charging?
Considering the high price of power supplies and the security of a full time
backup system, it would seem to make sense. The K3 draws so little current
on receive that it would make sense to run it this way. I would be a bit
.
73
Jack, W3TMZ
- Original Message -
From: Steve Ellington n...@carolina.rr.com
To: David Guernsey mooo1...@yahoo.com; elecraft@mailman.qth.net
Sent: Thursday, July 15, 2010 9:32 PM
Subject: Re: [Elecraft] K3 battery power
Is anyone using full time battery power and trickle charging
Steve,
Yes indeed - Look at the chargers from AA Engineering
http://www.a-aengineering.com/. Depending on your battery and the loads
connected to it, you may want the 5 amp Smartcharger, but if you are not
transmitting a lot and do not have the subreceiver installed, the 1 amp
may do for
On 7/15/2010 7:32 PM, Steve Ellington wrote:
Is anyone using full time battery power and trickle charging?
I have two deep cycle batteries kept topped off by about 60 watts of
solar panel and a FlexCharge NC25 charge controller. Usually one battery
is on charge while the other is in the
headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV
DHARMA
--- On Thu, 7/15/10, Steve Ellington n...@carolina.rr.com wrote:
From: Steve Ellington n...@carolina.rr.com
Subject: Re: [Elecraft] K3 battery power
To: David Guernsey mooo1...@yahoo.com, elecraft
On 7/15/2010 8:03 PM, Steve Ellington wrote:
I'm wondering what to use for battery power. The K3 requires 13.8v.
From the K3 spec:
Supply voltage 13.8V nominal (11V min, 15V max.)
I routinely run the K3 on battery as note in my previous post and the
voltage averages 12-12.5V and falls
PowerGate is connected to a 12-port RigRunner
power manifold for distribution to all the +12V shack equipment.
Paul, W9AC
- Original Message -
From: Steve Ellington n...@carolina.rr.com
To: Elecraft@mailman.qth.net
Sent: Thursday, July 15, 2010 10:03 PM
Subject: Re: [Elecraft] K3 battery
.
Steve
N4LQ
- Original Message -
From: Paul Christensen w...@arrl.net
To: elecraft@mailman.qth.net
Sent: Thursday, July 15, 2010 10:50 PM
Subject: Re: [Elecraft] K3 battery power
Steve,
If you use a station power supply as both a power source and charger,
you'll
want to investigate
I'm sure that I've mentioned this before, probably more than once.
I have an UPS/emergency power supply consisting of a East Penn (Deka) 95 AH AGM
battery on continuous charge via a homemade smart charger.
The charger was constructed using an Astron 35M supply, gutted of the regulator
board,
...I see MFJ has a unit (4416B) to get over this problem. Has anyone any
experience with this unit...
I did a review of the MFJ-4416 and TGE N8XJK boost regulators in the
November 2008 QST. I also have a review of just the MFJ-4416 on my website
at www.ad5x.com.
Phil - AD5X
.
--- On Sun, 2/21/10, Phil Debbie Salas dpsa...@tx.rr.com wrote:
From: Phil Debbie Salas dpsa...@tx.rr.com
Subject: Re: [Elecraft] Elecraft K3 Battery Boost Regulators
To: elecraft@mailman.qth.net
Date: Sunday, February 21, 2010, 6:14 AM
...I see MFJ has a unit (4416B) to get over
Peter,
You do NOT need a voltage booster with the K3.
If you allow a 12V lead-acid battery to drop to 10.5 you have just
over-discharged it and have already caused it at least minor damage.
Using a voltage booster to squeeze out a few more amp-hours will yield
only a few more minutes of
Just because the radio continues to operate at some reduced voltage doesn't
mean that it should be operated there. The transmit IMD performance of nominal
12V radios is horrible enough at full voltage; exacerbating this by operating
at lower voltage is a real disservice to your ham neighbors.
Windy has given sage advice about battery usage.
73! Ken Kopp - K0PP
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Another one of my idle thoughts...
Would there be enough room in the space normally occupied by the 100W
option to accommodate a battery such as that used in the K2???
Portable QRP/ QRPp...??
Dave KK7SS
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