...MFJ released a new Firmware for the MFJ-998 dated 08/02/2010. ...
The MFJ-998 wasn't interrupting the amp-key line when it tuned from memory.
I guess it was assumed that this happend very quickly so this would not
cause a problem. However, as the relays operate you can have a momentary
3) Leave the tuner in manual mode and press TUNE on the tuner when you
change bands or antennas. This interrupts the amp-key line before
tuning starts. But this requires a TUNE REQUEST input to the K3
which is not available.
Since the manual mode tune interrupts the amp-key line, you
Subich, W4TV li...@subich.com
Subject: Re: [Elecraft] Externmal ATU
To: elecraft@mailman.qth.net, dpsa...@tx.rr.com
Message-ID: 4c76d780.6000...@subich.com
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Phil,
If the K3 took in a remote TUNE request, then I would not
have
I bought my ALS600/MFJ998 combo after reading Phil's review
of the system... Could it be a '998 firmware thing?
-lu-w4lt-
MFJ released a new Firmware for the MFJ-998 dated 08/02/2010. See here:
http://www.mfjenterprises.com/support.php?productid=MFJ-998
Phil,
If the K3 took in a remote TUNE request, then I would not have to
remember to manually take the ALS-600 off-line.
The problem is that the lack of external I/O to accommodate a remote
TUNE request or provide a tune command (e.g., Icom Start signal).
It will take some fancy programming
Phil, I am not certain if you or someone else originally asked the
question -
but -- The K3 can provide a lower power RF source for tuning.
As others have mentioned - first set the Tune power in the menu.
Then use TUNE (not ATU TUNE) and the K3 will transmit at the power you
set in the menu.
...You could go to a lot of trouble and reverse engineer the LDG cables and
then adapt them to the K3...
The problem is that the K3 needs an external input to put it in the TUNE
mode. I have the KAT3, but I need an external autotuner for use with my
ALS-600 amp. So I have this same issue with
Phil.
The problem is that the K3 needs an external input to put it in the
TUNE mode. I have the KAT3, but I need an external autotuner for
use with my ALS-600 amp. So I have this same issue with my MFJ-998
autotuner. The MFJ-998 puts out a control signal (ground) before it
starts
The discussion below is one approach, but not the situation I am
dealing with. I am looking for a way to access the signal from the K3
that tells the ATU to TUNE. I want to use the front panel ATU button
to start the TUNE process, not a button on the tuner. Leaving the
tuner in AUTO
Does your LDG or AH-4 tune on RF sense? You can use the TUNE function (hold
XMIT) to send RF and the power of that is adjustable.
73 de M0XDF, K3 #174, P3 #108
On 24 Aug 2010, at 15:03, n...@widomaker.com wrote:
The discussion below is one approach, but not the situation I am
dealing with.
The signal you are seeking in the K3 is a decode of AUXBUS data. It
does not exist as a single signal line.
73,
Don W3FPR
On 8/24/2010 10:03 AM, n...@widomaker.com wrote:
The discussion below is one approach, but not the situation I am
dealing with. I am looking for a way to access the
The K3's ATU function is handled within the MCU. It is an internal
logic state, not a physically accessible signal, that actuates the ATU.
73,
Lyle KK7P
...I am looking for a way to access the signal from the K3
that tells the ATU to TUNE.
Phil.
The problem is that the K3 needs an external input to put it in the
TUNE mode. I have the KAT3, but I need an external autotuner for
use with my ALS-600 amp. So I have this same issue with my MFJ-998
autotuner. The MFJ-998 puts out a control signal (ground) before it
starts
Bill,
I ran into this problem a few months back and swapped several emails
with Wayne about it.
Currently there is no specific support for external tuners from the K3,
so the method you are using is the only possibility.
I did some research on external auto-tuner protocols for Wayne and my
, 24 Aug 2010 10:52:47 -0500
From: Phil Debbie Salas dpsa...@tx.rr.com
Subject: Re: [Elecraft] Externmal ATU
To: elecraft@mailman.qth.net
Message-ID: f459b5fc07c34992bda8a0aa09723...@ownerpc
Content-Type: text/plain; format=flowed;
charset=iso-8859-1;
reply-type=original
Phil.
The problem
Joe - The problem is that now you'll transmit at full power when you
key the radio. Not good for most external autotuners. And probably
not wonderful for the K3 output when playing into a relay-switched
autotuner at full power.
The Quadra uses F-Set for adjusting its internal tuner and
The K3 should certainly be able to handle a relay-switched tuner on
short-term tuning without a problem ... it certainly does with the
KAT-3.
I believe that the K3 tunes with low power (5 watts?) when using the KAT3.
The thought of running the K3 at full output into momentary infinite SWR
Phil,
I am not certain if you or someone else originally asked the question -
but --
The K3 can provide a lower power RF source for tuning.
As others have mentioned - first set the Tune power in the menu.
Then use TUNE (not ATU TUNE) and the K3 will transmit at the power you
set in the menu.
Or wait for the Elecraft auto-tuner when released in the new year.
Till then use manual mode.
Just my 2cents worth...keep the change...(:-))
Gary
On Wed, Aug 25, 2010 at 11:38 AM, Don Wilhelm w3...@embarqmail.com wrote:
Phil,
I am not certain if you or someone else originally asked the
I have a nice new K3/100. I am not ready to add the ATU yet. But I have
both an LDG AT11mp and an ICOM AH-4 (in the car). Has anyone figured how to
interface one of these tuners to the K3 so that it works off the ATU button,
just as they do with my ICOM-706MKiig?
Currently I'm using the LDG
Bill,
I would assume that you have the LDG interface cable for the Icom.
Unfortunately, LDG does not make a similar cable for the Elecraft K3.
You could go to a lot of trouble and reverse engineer the LDG cables and
then adapt them to the K3, but for the time and effort involved, it
might be
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