I've had a distinct channel imbalance problem developing slowly, I suspect,
for about a year or more on my K3. I discovered very recently that it is
being caused, or substantially worsened at least, by the AFX audio effects
function. I am almost entirely using CW through headphones, listening to
Well, still stumped --- and error messages I get are E 202, then E000A0A,
with the text ERR DSE. I'm using the latest utility for the mac, and the
elecraft serial to usb cablethis is the first time i've had an issue with
downloading software in over 3 years. . . .
I'm sure it's
Tom,
Try the following:
1) download new firmware files from Elecraft
2) Load only the DSP firmware to the K3
3) once the DSP firmware has been loaded, then load the MCU and FP firmware.
I suggest this order because there may have been some changes in the MCU
code that depend on a response from
Group -
My K3, KPA500, KAT500, two USB soundcards and an SDR are all
cabled together and playing well. I would like to upgrade the firmware
in all 3 K line devices. Is it necessary to completely or partially
remove cables before attaching my computer via USB - serial port cable
to
I have used a four-port USB to Serial Adapter (purchased on Amazon, from
Gearmo), along with two KXSER cables for the 9-pin DIN to 3.5mm TRS
conversion.
What I use now is a Edgeport 8-port USB to Serial adapter I found on eBay at
a very attractive price.
I need to be able to talk via RS-232 to
Gary,
I don't know what is going on, but I suggest you turn the headphones
backwards as a test to see if the imbalance might be in the heardphones
or in your ears. If it switches sides with the headphones backwards,
the problem is external to the K3.
As far as the 'high tone' is concerned,
Larry,
You *should* be able to do the firmware upgrades with the cabling in place.
Of course, if you have any difficulty, the first order of
troubleshooting is to isolate the gear that is producing problems.
73,
Don W3FPR
On 3/25/2014 10:11 AM, Larry Libsch wrote:
Group -
My K3,
Hello friends,
I'm curious who has tried an SO2R setup of K3 as primary, and KX3 as
secondary radios in a SO2R set up. If you did, did you find anything
out of the ordinary with respect to the KX3 being the secondary radio?
More prone to interference from the primary radio (or vise-versa)?
My
The Edgeport 8-port is a great way to go but a 4-port is good too. I use mine
to connect the K3/P3, KPA, KX3/KXPA, KAT, KRC2, and FSK Keying for the k3.
CHEERS,
Fred KE7X
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
There is also a Siig brand usb to serial port unit available in 2, 4 or
8 serial ports that is far less expensive and works very well.
SIIG *-Port USB to RS-232 Serial Adapter Hub
http://www.amazon.com/SIIG-8-Port-RS-232-Adapter-JU-SC0211-S1/dp/B005PAJV5A/ref=pd_cp_e_1
73, Doug -- K0DXV
On
That's about twice what I paid for an Edgeport 8, new in box, on eBay.
One advantage of the four port Gearmo (for under $50) is that it terminates in
male DB9 plugs that go right onto the back of the P3 and KPA500, no added RS232
jumpers needed. I did need KXSER jumpers for the 3.5mm Elecraft
I'm laying out and gather up the parts needed to use of a XV-144 with my K3 for
EME applications.
Since my aim is towards JT65, is there anyone on the Reflector who's done
it and found need to do a modification to the local oscillator in the XV-144 to
enhance the
frequency stability? The K3
Well, I seem to always have problems when I buy a used radio... Strike
3... :\
The other two were a complete loss but this one I need to salvage!
I just bought a K1 and I think it has receive issues.
I was trying to get on the air last night and hitting people with lot's of
signal (579, 589,
What exactly is the function of this device? Does it give you 8 separate serial
ports? Or is it just a hub? Is it somehow different from plugging 8
USB-to-serial cables into a computer?
Thanks!
Slava Baytalskiy
sla...@nullserv.com
W2RMS
On Mar 25, 2014, at 11:28 AM, Doug Person k0...@aol.com
Hi JOhn,
I used an XV50 with the optional crystal oven feeding my K2 and
successfully copied 6M EME JT65. The oven might be all you need for 2M.
Regards,
Mike VP8NO
On 25/03/2014 12:43, John Lawrence wrote:
I'm laying out and gather up the parts needed to use of a XV-144 with my K3 for
I use Hakko FX-951 in a production environment. This is an excellent,
durable soldering station. If you haven't used a modern soldering
station with fast thermal recovery, you're in for a treat!
These replaced Weller stations which required a significant spare parts
inventory to keep running.
-- Forwarded message --
From: Gerry leary gerrylear...@icloud.com
Date: Sat, Mar 8, 2014 at 1:55 PM
Subject: Re: [Elecraft] KX3 Service!
To: Jim Harris capo...@gmail.com
Send it to Ella craft
Sent from my iPhone this time
On Mar 1, 2014, at 6:44 PM, Jim Harris
You only plug one USB cable into the computer and the device creates x
number of virtual serial ports.
Here's another one that has 4 serial outlets
Still catching up on the SSB net reports. Enclosed is the report for 3/16/14.
42 participants.
Station NameQTH Rig S/N
N6JWJohnCA K3 936
WB9JNZ EricIL
John,
I am no help regarding the XV-144 use with JT65 (I do not have the XV-144).
But JT65 does not require a linear amplifier. It is FSK and will
work with any amplifier that works with CW, including
Class-C and Class-E. Of course it will work with linear's if that is
what you have. FSK
Yes. Exactly. 8 separate serial ports fed from a single USB port.
There are many different types of these devices. The one I use has one
USB connector and 4 cables with DB9 connectors already attached - which
makes it very convenient to hook up everything requiring a serial port
with one
John - Get the OCXO for $49 for the XV. It helps a lot. Mine is always
powered (heated), and also, I used real heatsink goo between the PA module
in the XV and the case bottom, as the thin sheet of conductive stuff didn't
work well.
I've thought about some kind of PLL, but wondering what folks
*Good afternoon, ALL!*
*I've noticed that when I load a newer version of firmware/software, at
the end of the load these units seem to turn-off on their own. I read
somewhere that the operator should turn the units off and then back on so
the units could take advantage of the changes.*
*Do I
I have one too, and it is great. It heats up almost instantly. And I
recently had a very pleasant experience dealing with the importer,
American Hakko, who got me a 230v transformer for it from Japan.
On 3/25/2014 9:38 AM, Josh Fiden wrote:
I use Hakko FX-951 in a production environment. This
Group -
Thanks to all for your replies. I'll try the updates without
removing the cables between the devices.
K4KGG, Larry
__
Elecraft mailing list
Home:
I am installing a TCXO for my K3 and the manual say's:
* METHOD 1 (Frequency Counter):*
* Locate the *CONFIG:REF CAL *menu entry.
* Connect a frequency counter with +/-
*1 Hz or better *accuracy to J1 on the reference oscillator
module. Measure the exact frequency in Hz.
* Using VFO A, set
I’m downsizing my station and have the following items for sale.
Everything is in excellent condition.
For the K3:
KFL3A – 2.8k 2.8khz 8 pole filter @ $110.00
KFL3A – 1.8k 1.8khz 8 pole filter @ $110.00
KFL3B – FM 13khz filter (2 available) @ $110.00 each
KFL3A – 400 400hz 8 pole filter @
I've used a kx3 as the third radio in a so3r configuration. I was low power
but did not
see any additional issues with using a kx3 rather than a k3. You may find it
necessary
to use the 8 kHz offset to reduce the zero if bleed through if you don't have
enough
inter band isolation.
When my K2/100 is keyed in SSB mode (connected to a dummy load) and the
microphone is gently tapped, I can hear a faint noise coming from somewhere
on the KPA100 printed circuit board. It is a low level buzzing/rattling
noise similar to a small metal object vibrating against a loudspeaker cone
George,
I don't know the accuracy of your frequency counter, but that accuracy
statement is with reference to the frequency of the reference oscillator
(almost 50 MHz), so that accuracy must be better than 0.5 x 10 exp8 or
0.02 ppm. Check the specs on your counter to see if it is
Ray,
How old is this KPA100? If it is the older design with red toroid cores
at L15 and L16, I suggest that you update it with the KPA100UPKT. In
addition, the shield may have to be upgraded as well. If the slot above
the SO-239 jack is much greater than 3 mm, and you do not have the
Colin
Thank you. I plan to add the OCXO option. A phase lock loop with
a common reference might be needed to stay within 3 or 4 Hz.
I know some are using a Trimble Thunderbolt disciplined reference but it would
be
interesting to know how the configuration.
I'm looking for EME ops
I too would like to see more information, especially on how minimal this
station can be and still be able to work a decent amount of contacts.
Many years ago, before the current digital modes, and better, more
precise equipment was being used, I made a handful of EME 2 meter
contacts with a 4
Could someone using a recent Apple Airport Extreme (Time Capsule) router with
Airport Utility 7.7.2 provide detailed instructions for setting up port
forwarding for the Remote Rig devices with this router. Elecraft support
pointed me to an outdated site with an earlier version of Airport
Selling my beloved K3/100 SN 5717 with P3 SN 1533. Other priorities
right now. Includes Signalink USB, KRX3 (2nd Rcvr), KXV3A (RX Ant, IF
Out Xvrtr Intf), KBPF3 (Gen Cvg RX Module). Main RX has the stock 2.7
kHz filter plus the KFL3A-6K 6 kHz 8 pole filter and the KFL3A-500 500
Hz 5 pole
What tip or tips do you recommend? They have a 4mm chisel, a 5.2mm chisel, and
a conical.
Thanks,
Phil – AD5X
“I use Hakko FX-951 in a production environment. This is an excellent, durable
soldering station. If you haven't used a modern soldering station with fast
thermal recovery, you're in
I am having a problem with T/R switching in my K3. The symptom is that,
after I transmit, the receive signals are sometimes very attenuated.
This problem has gotten worse. At first, simply a quick tap on the PTT
switch fixed everything, but now, at least on phone, I must make a brief
+1 for the Gearmo 4-port. It is FTDI based and works flawlessly on OS X. Hard
to beat for $50. I use it in tandem with a couple of KUSB's and KXUSB's to
connect all of my Elecraft gear to my Mac. No need to do any cable swapping.
Everything has it's own, dedicated USB/Serial adapter!
John,
There is no way that I know of to sync the XV series LO to any
standard. The crystal oven along with configuring the XV LO to be
powered anytime there is voltage on the XV transverter input will help a
lot.
The K3 itself can be synced to an external standard with the EXTREF
option,
Phil.
I have a Hakko 936, but your question does not relate to the specific
soldering station. I prefer a narrow chisel tip, so the 4mm would be my
choice. Used 'sideways', it will work similar to a conical tip, but has
enough flat area to handle most thru-hole soldering jobs.
I personally
Jan,
Before deciding it is a K3 problem, take a look at your antenna system
coax. If you bought cables from DX Engineering in the past year, be
aware that they had a crimping problem that could result in the bhavior
that you are experiencing. A transmit 'sets it straight', but the RX
As Don suggests, the problem can be anywhere in the antenna system, and
in my experience it is much more likely to be a connector than the K3.
I once had a similar problem that drove me nuts until I discovered a
corroded solder joint INSIDE an encapsulated balun.
A film of oxide on a poor
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