The next batch of custom 700 Hz 8-pole K3 filters is expected to ship
the last week of February. Although most of them have already been
spoken for, a handful remain available for sale on a first-come-first-
served basis. It's still too soon to say whether the last of them
will be "claimed"
P.S. The filters retail for $145 each + S&H, with S&H being as follows ...
o Domestic = $6
o Canada & Mexico = $14
o All other international destinations (one or two filters) = $18
o All other international destinations (more than two filters) = $34
73,
Gary KI4GGX
(webmaster)
_
Great to hear, Roger. I successfully completed my remote operation using the
K3/0 and K3/10 combo yesterday.
I agree, Brandon's knowledge on the topic and willingness to help has been
outstanding!
73,
Chad
N0YK
-Original Message-
From: Jim Sharp
Sent: Saturday, January 26, 2013 10:
Out of curiosity, what would one use or need a 700hz filter for?
73, John N1JM
Gary W. Hvizdak wrote
> P.S. The filters retail for $145 each + S&H, with S&H being as follows
> ...
> o Domestic = $6
> o Canada & Mexico = $14
> o All other international destinations (one or two filters) =
I use mine for digital modes. There are times where a 500 hz could be too
narrow. That is the reason I purchased mine.
~73
Don
KD8NNU
-.- -.. ---.. -. -. ..-
-Original Message-
From: John_N1JM
Sent: Sunday, January 27, 2013 9:08 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecr
Hmm, wouldn't the DSP filter be good enough for this purpose?
Except for obnoxious PACTOR, there are generally not the 40db over S9
signals to reject.
73 de Brian/K3KO
On 1/27/2013 14:17, KD8NNU wrote:
I use mine for digital modes. There are times where a 500 hz could be
too narrow. That
Thanks for the response. I guess I don't do enough digital modes to think
about that. Usually 500 or ssb/dsp filter is good for me.
73, John N1JM
On Sun, Jan 27, 2013 at 7:17 AM, KD8NNU wrote:
> I use mine for digital modes. There are times where a 500 hz could be
> too narrow. That is th
What event is there for SSB 160m next week.
I thought the 160m contest starts Feb 22nd.
If there is another contest please share as then I need to figure out how
to get my inverted L back in the air.
Thanks
Don
~73
Don
KD8NNU
-.- -.. ---.. -. -. ..-
-Original Message-
From: George W
In theory yes. But there can be a lot of signals in the IF and if you
struggling to get a weak one out then the RX is better with a narrow filter.
I don’t know the math behind this or the electronic design details but I can
tell its better by my decodes after I added the filter.
It is the sa
The KAT500 remembers tuner settings by frequency ("band segment" or "bin")
and antenna connector.
If you have five 80 meter antennas remotely switched, and they're all
different impedances, then you should expect some searching.
At the other extreme, if your 5-port remote switch selects between f
I find the main benefit during contests for S&P and for simplex Dx pileups.
Using them with Lo-High adjustment gives results, especially since I don't have
a directional antenna.
They are not a cure-all, but they are helpful. Of course the DSP cannot do
everything by itself or there would be
You are absolutely right, Don. It is Feb 22nd. My apologies.
73,
George, NC5G
What event is there for SSB 160m next week.
I thought the 160m contest starts Feb 22nd.
If there is another contest please share as then I need to figure out how
to get my inverted L back in the air.
Thanks
Don
~7
I'm using the KAT500 here with a multi-band NVIS loop for MARS on
port one and several other antennas on port 2 which has switched
antennae on it. Some of the antennae on port 2 are in the same range
as the MARS antenna, but the KAT500 very smoothly handles the tuning
correctly on both ports.
Co
Although Mark has solved his INH problem, I thought I would share my
ckt for using the inhibit function with the K3 (in fact it also has
ckts for inhibiting a FT-847 which I no longer have):
http://www.kl7uw.com/TX-INHIBIT.htm
I use the Band-0 and Band-1 select functions to control VHF
inhibit
As expected, the last stumbling block in preparing for the Dxpedition is RTTY.
I am using WinTest which up to this point has been very east to setup.
I can't get the K3 to go into XMIT. Hit F1 (CQ T33A) in WinTest and it sings it
annoying tones, MMTTY TX button goes ACTIVE, the RTTY XMIT patter
Jay,
Those applications must send ASCII over the same port that is connected
to the K3.
Do you have other applications running? Only one application at a time
can open a COM port.
If two or more applications attempt to share the same COM port, the
second one will fail to connect.
If you do ne
Don, that will not work. EXTFSK does not send ASCII over the radio
control port. What it does is use bit-banging techniques to twiddle the
TxD line on a serial port whose UART will not go slow enough to key 45
baud RTTY (that includes most USB-to-serial adapters). The port EXTFSK
uses cannot be
Good afternoon all, I installed the KXBC3 in my KX3 last night and it had no
error messages or problems.up until now.
Here is what I did and what is happening.
1. Batteries that are installed are Ansmann 2850 MaH NiMH brand new min charge
on them if any.
2. Put time on KX3 for 16 hours of
Hi,
I believe your PS reading is too low. The PS reading on the KX3 should be
at least 13.8 volts. There is a polarity diode so your ext power supply
should be 14+ volts.
At least this what my KX3 needs to charge.
73
Jim H K7SSS
In a message dated 1/27/2013 11:59:51 A.M. Pacific Standard T
Excellent condition. I take care of my stuff. Serial number E057. $135 plus $10
for shipping in US. Original box. Contact off list at k...@arrl.net
73
Bob K4LW
Sent from my iPad
__
Elecraft mailing list
Home: http://mailman.qth.net/mail
Mike Weir writes:
> 1. Batteries that are installed are Ansmann 2850 MaH NiMH brand new
> min charge on them if any.
> 2. Put time on KX3 for 16 hours of charge time and left the Astron
> power supply for full 16 hours.
16h * 200mA = 3200 mAh. That's not enough to fully charge 2850 mAh
batterie
Sorry, I did not know that. That means it should ideally work through a
real serial port and must use the "one transistor" keying interface to
translate the TxD RS-232 levels to TTL - then feed the TTL output to the
FSK pin on the K3 ACC connector.
73,
Don W3FPR
On 1/27/2013 2:47 PM, Richard
You should have greater than 10.0 volts after a full charge I would check
the batteries individuallyyou may have one or more bad batteries
Sent from my iPad
On Jan 27, 2013, at 12:59 PM, Mike Weir wrote:
>
> Good afternoon all, I installed the KXBC3 in my KX3 last night and it had no
Good evening all. I believe I solved the problem I had put the rig on charge
(so I thought) last night for 16 hours. Once I turned the rig off the LCD
just went to it's normal black screen. After posting my question I wanted to
try a 4 hour charge and once the rig was shut off the display light up
I am trying to help a friend understand auto tuning on his KAT500. Bear
in mind that I have not yet touched a KAT500, so I haven't been able to
play with it to sort this out. I'm just reading the manual. I am
biased by how the K3 ATU works, but from the manual, it looks like the
KAT500 works
Here is how I tune with the KAT500:
1. Make sure the K3 tune power is set at 25W.
2. Select the frequency you are going to operate at.
3. Set the KAT500 output port by tapping the ANT button.
4. If you are using a KPA500 put it in standby.
5. Hold the XMIT button on the K3 to activate the K3 tune
I would like to see (LED) the state of the BAND0-3 outputs. Has anyone built
or bought some kind of 4-indicator for this? I want to do this as a
temporary indicator while I am playing with a pair of UM BCD-14 band
decoders.
The BAND0-3 outputs come off of 5V through 2.2K pull-up resistors with
Why don't you just trust the decoder?
--- On Sun, 1/27/13, N2TK, Tony wrote:
From: N2TK, Tony
Subject: [Elecraft] K3 - ACC Connector - Band0-3 output indicator
To: "'elecraft'"
Date: Sunday, January 27, 2013, 4:29 PM
I would like to see (LED) the state of the BAND0-3 outputs. Has anyone built
Mine charges just fine from a 13.8 VDC supply.
73 Ron AC7AC
-Original Message-
Hi,
I believe your PS reading is too low. The PS reading on the KX3 should be at
least 13.8 volts. There is a polarity diode so your ext power supply should
be 14+ volts.
At least this what my KX3 needs to cha
Does anyone know when the new firmware will become available which will
eliminate the need to "Tap the XMIT button on the K3" after the KAT500 finds a
match?
It would be nice if we only had to hit the ATU TUNE button once on the K3
and the entire tuning process would be automatic.
Mike AC6
Tony,
I would suggest that you use a 74xx07 Hex Buffer between the K3 band
outputs and the LEDs to show you the state of the band outputs. If the
state for 60 meters bothers you, use a 74xx06 which inverts the
output so all 4 LEDs will be on for 60 meters.
Like Wes, I think you should
Be aware that Ed's circuit is much like mine in that it does not have a pull
down on the
TxInh line. Therefore it could act like mine did and extend the time till
transmit is
enabled. A resistor to ground might be a good addition if this is important.
Also as a side note, the kx3 is differe
Has anyone built or bought some kind of 4-indicator for this? I want
to do this as a temporary indicator while I am playing with a pair of
UM BCD-14 band decoders.
Easy enough ... 4 NPN transistors - base to BAND0-3 pins, LED and
limiting resistor between +13.8 and collector of the transistors
Does this assume that the K3 mode is CW? On my K3, without the KAT500,
if I'm in SSB mode and tap XMIT, the K3 goes into transmit, but there's
no RF out unless I speak into the mic.
On 1/27/2013 4:46 PM, Tom H Childers wrote:
Here is how I tune with the KAT500:
1. Make sure the K3 tune pow
Oops, I misread your reply which clearly said HOLD XMIT in step 5. Thanks!
73,
Randy, KS4L
On 1/27/2013 6:39 PM, Randy Moore wrote:
Does this assume that the K3 mode is CW? On my K3, without the KAT500,
if I'm in SSB mode and tap XMIT, the K3 goes into transmit, but there's
no RF out unless I
Glad to see the fix for the sideband selection for afsk-a in the kx3 was in
this beta
release.
Hopefully some more flexibility of selecting the filtering (not just dual pass
band) and
being able to select other center frequencies is in the works as well!
Mark. N2QT
I have been following this thread and others regarding the tuner. Seems
to me that I have little improvement towards a simple amplifier with the
auto-tuner from using my tube amp and manual tuner. My presets are all
marked - hence, QSY only takes seconds. I suppose when one gets used to
all the
Thanks, everyone, for the feedback. Perhaps a bit of extra explanation
is order, so I make sure I'm getting/understanding the right info:
1. My father-in-law and I share the same shack, each with our own
complete setups. Since we both have transceivers, tuners, amps,
etc., running more co
Replies to posts should be to the group - NOT sent as private emails.
Private emails are not seen by the group, hence no one in the group can
learn anything or hear what is being said on a particular subject.
Bill W2BLC
__
Elecraft ma
Oops, the txinh in Ed's circuit is done with relay k4 which pulls the line to
ground, eliminating
Any ambiguity. My mistake was assuming k1 was doing this function, instead of
its clearly indicated action of switching control between the k3 and ft 847.
Mea culpa
Mark. N2QT
On Jan 27, 201
Bill,
While I agree with you in general, there are occasions when the nitty
gritty details are not of interest to the group.
For instance, if I begin to help someone with a problem that gets into
detailed measurements, that no longer is of interest to everyone, so I
take it off-list. I leave
When contesting CW, I set N1MM for software PTT. This works very well but
about every hr the radio is stuck in transmit. Hitting the button with
BAND/VOX unstucks. Any idea what it may be?
K3 is controlled by Microham StationMaster and CW is by CwKeyer. Would
prefer keying directly but then StatioM
When contesting CW, I set N1MM for software PTT.
*DON'T USE SOFTWARE PTT* with any microHAM Interface. ALWAYS use
hardware PTT from a keyer, the logging program or VOX (semi break-in)
from the rig. There are several models of transceiver known to get
stuck in transmit when mixing software (
I have two K3's and used software PTT for years with Writelog and
N1MM with no problem. Then, I think something changed in N1MM,
and software PTT hung up more and more frequently. You can
usually get PTT to drop by sending another message, but by that
time, the qso is pretty messed up. I'm not
Hello all you K3 and KPA500 (or other 6m amplifier) owners! If you also have a good
6m beam, you have a world class station capable of working me on F2 (if we have some
by March) or 6m EME (if you have some good clear terrain in front of your antenna).
I will be primarily using my own K3 with
Keep in mind that for most operators the "TUNE" operation happens only once
on each frequency segment within a band. Once L/C and antenna port values
are stored, you'll hear a brief 'click' from the KAT500 and it's ready to
go.
If you really want to avoid being surprised by a tune operation commen
It would also be considerate it those that want to post critical comments, post
direct and not to the group,And I know, sometimes it is read one way, meant
another.I also will post to the group, if an answer is of broad interest, but
the specifics will likely remain direct.There's no need for so
I actually have a KAT500. Using the KAT500 Utility, I set up the
antennas [I have 3, a very convenient number] so that the preferred
antenna is automatically selected and if one won't ever be used on that
band, I de-selected it. All that works fine.
The memory segments vary by band, doing th
That all depends on what is meant by "critical comments". Eric, the
list moderator does not tolerate insulting or demeaning comments posted
either privately or publicly. All abuses should be reported to
e...@elecraft.com.
Eric will handle those responses if needed.
73,
Don W3FPR
On 1/27/201
I have watched ESSB signals on the P3 and I have this question; most receivers
are limited to as narrow as 2.1 KHz, commonly 2.8 KHz on SSB. That is about
all they are going to hear when listening to a wide ESSB signal. Unless
someone with ESSB is in qso with a station of the same width, isn'
We had a good net today with decent propagation. There were 39 participants
over a 27 minute net.
Here is a list of them:
Station NameQTH Rig S/N
N6JWJohnCA K3 936
KE5GBC MikeTX K3
IMHO, those who want "studio quality" SSB should obtain a commercial
broadcasting license and use that instead of using the ham bands for
"wideband SSB". Not only is it wasted bandwidth, but it is QRM to
adjacent stations. My opinion of AM on the ham bands is similar.
Technology has advanced
Apparently this group is set up so that Replies go only to the individual, not
the Group. That doesn't seem commensurate with expecting that replies will
help others with similar problems. Which Is the intent?
Also it would help everyone if
A. Replies included some of the text to which they a
Wasted bandwidth, indeed. This is not the place to debate "ESSB." It's a
dead horse that has been beaten from the pasture to the glue factory.
73,
Scott, N9AA
On 1/28/13 12:07 AM, Don Wilhelm wrote:
IMHO, those who want "studio quality" SSB should obtain a commercial
broadcasting license and
I use ESSB but with the equalizer set to limit the bandwidth to about
2.5 kHz. I do that because I believe you get better audio quality.
Much of the "Donald Duck" quality of SSB is due to the ripple in the
phase response of the crystal filter, which occurs primarily at the
edges of the filter
I wish it were possible to leave the bandwidth wars somewhere else. :(
You don't want to run ESSB or AM, then don't. On an uncrowded band there's no
foul in running AM or ESSB, or any other legal mode.
The incessant lectures on bandwidth aren't necessary or fruitful.
Grant/NQ5T
Sent from my
OM's, Please don't assume my question is a lecture on bandwidth. I am
interested in the technical aspect of ESSB. Am I right in thinking the Rx
stations with standard filter widths are not going to hear the extra Tx width
of ESSB?
Alan, I did read your reply.
Rich, n0ce
- Original Mess
That reminds me; I still have a 300 Baud modem that I built from a magazine
article the Texas Instruments club designed and published eons ago. The
filters were excellent. That enabled us to send data from one computer to
another. Look what we have today.
Rich, n0ce
- Original Message
(My apologies if this has been posted before) This will be a slam-dunk with a
K3.
One of our club members brought it to my attention. It is about FreeDV, which
is digital voice on HF using only 1.1 KHz of bandwidth, and of course with
digital, there is no noise.
Here is an excellent video. h
59 matches
Mail list logo
