On Thu, 18 Sep 2008 16:20:56 -0500, Solosko, Robert B (Bob) wrote:
>toroids
>all have a specified frequency range but what happens when they're used
>outside of that range?
To gain a better understanding of ferrites study my tutorial.
http://audiosystemsgroup.com/RFI-Ham.pdf
Look at the measur
It seems that something let my K2 stuck in TX mode. I removed all
module and put appropriate jumpers (unmod kit). Still in TX when
powered ON. I checked this using my DL2 dummy load with my
multimeter I always have output power !!
Could it be a defective KEY jack that is jammed? I have
OK, but I have nothing plugged, no key, no mic, nothing. But I will
check 8R and 8T for sure I let you know guys.
Thanks for now.
Le 08-09-18 à 23:39, Ron D'Eau Claire a écrit :
Yep. That happened to me once when I had a short in the key line.
After muttering "mon Dieu!" I started unplu
Yep. That happened to me once when I had a short in the key line.
After muttering "mon Dieu!" I started unplugging things and it started
working
Unplug the key and check again.
Ron AC7AC
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Don Wilhelm
Sent
Jean,
This is strange - the second case of similar behavior reported on the
reflector today. Could it be a case of the 'phase of the moon'?
When the K2 is in transmit state, the behavior will be as you describe -
no buttons operate but the K2 displays the frequency.
Check to see if your K2
Hi everybody,
I have my first major trouble since my building experience back in
2004. Now, everytime i power up my K2, I can see ELECRAFT and then the
frequency. but everything is frozen after.. still get the
frequency displayed, but no button, no function work. I also tried to
Today I had been listening to a local AM station on 1250khz and after tuning
up the band to 160 meters the transmitter would not transmit. I powered
down and then back up and normal CW operation was restored. Is this normal
or do I possibly have a problem? Using FW 2.38 TIA, de gary, kd9sv
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Looking for a built or unbuilt KFL1-2 (2 Band Module) OR KFL1-4 (4 Band Module)
for the K1 - and any other unbuilt add on K1 kits you may have!! Please email
me at [EMAIL PROTECTED] or call me on my cell at 770-377-6000 with asking price.
Thanks
Dan-KI4YZE
-Original Message-
From: [EMAI
On Thu, 18 Sep 2008 09:44:42 -0700, "Ron D'Eau Claire" <[EMAIL PROTECTED]>
wrote:
>That's true. Indeed, if you have an "antenna tuner" (built-in automatic or
>external manual) you don't even need to do that. That's what made them so
>popular in recent years; they "fix" impedance problems at the r
Same here. I have the 10Khz FM, 2.7 and 1.8. Use the FM filter for AM rx.
See the same behavior others are describing with 2.38.
Rodger
Original message
>Date: Thu, 18 Sep 2008 20:50:38 +0200
>From: "Steef PA2A" <[EMAIL PROTECTED]>
>Subject: Re: [Elecraft] K3 MCU 2.38 Software Bug
Hello All,
There have been several e-mail threads recently about ferrite
cores and about baluns and transmission line loss with high SWR. Related
to this is a question that I haven't seen addressed anywhere - toroids
all have a specified frequency range but what happens when they're used
o
FOR SALE: K1 QRP XCVR in mint condition -- non-smoker. Covers
40, 30, 20 and 15 meters. Includes auto antenna tuner, backlight option, tilt
stand, power cable and manual. Only used in the shack. Will ship to DX
stations. Price: $400 USD plus shipping.
Reply to: [EMAIL PROTECTED] 73's -- Norm
For the record -- K3/100 kit serial number 1741
Ordered 20 May 2008
Shipped from Aptos 17 September 2008
Arrived in SF 18 September 2008
Thanks to all at Elecraft, including the efficient Katie.
Oliver Johns
W6ODJ
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Excellent point Joe.
The current QST magazine that features a short article about running open
wire or window line to coax outside the house and then using a short length
of coax to reach the rig. The author noted that with a short run of 10 feet
of the coax he uses, the losses with a 10:1 SWR wo
On Thu, 18 Sep 2008 09:35:45 -0600, Bill W5WVO wrote:
>as feedline losses due to SWR can be
>significant on both transmit and receive
It depends on your definition of "significant" and the degree
of mismatch. This is another one of those "old wives' tales
that is a wild exageration of reality.
Hi Charlie:
Since I don't plan on hanging off the side of the tower to operate my
station, isn't it more prudent to tune the entire "system", flaws, feedline
and all if my main concern is what SWR my equipment, in my shack, sees?
'Tuning' things so the rig sees what it wants is not always the
Don,
I have found the same problem. I have the 6K, 2K8, 500, 400 and 250 Hz at
the moment. All three narrow filters show LO 0.85 and HI 2.15 in AM mode.
The BW shown during switching from HI to BW is 2.70 and not 500, 400 and 250
Hz as one would expect.
I am wondering why the center frequenc
Jim,
You are correct that the K3 IF output should/will change frequency when
the K3 VFO is tuned. The signal at the IF output jack will be
essentially RF input frequency minus the VFO frequency (except for 6
meters where it is 'plus').
If you are trying to "tune" with only the Rocky softwar
Same thing here, Don, even though I have a slightly different filter
setup. When selecting Mode AM and then tapping XFIL, the width drops
down to narrow (Low 0.80; High 2.20) indicating the 2.8k filter. Tapping
XFIL again takes me back to the main AM Filter (FL 1, 6K, in my case)
and bandwidth
I don't completely follow your description, so can't comment on what
you are seeing, but many of us who are using the IF panadaptor are
using the wu2x version of PowerSDR, along with Larry Phipps'
LP-Bridge. This gives the best panadaptor I have ever used, and I
have been using them since the e
Jim,
This is how my LP-PAN works when teamed up with PowerSDR IF Stage. K3
always in the middle, up to 92khz display on either side. I do need a
"command translator" in between - either Simon's "Ham Radio Deluxe" or Larry
Phipps' LP-Bridge - so that the tuning is reflected is the display. O
Basic Parameters:
K3/100 with KRX3 - MCU 2.38, FPF 00.02, DSP1 1.90, DSP2 1.90
Main Board: FL2 = 2.8; FL3 = 2.1; FL4 = 400 Hz
Sub RX Board: FL2 = 2.8; FL4 = 400 Hz
AM Rx Enabled for FL2 Main and FL2 Sub
AM Tx not Enabled
I do NOT have a 6.00 AM Filter but am listening to AM through my 2.8 ro
I was thinking the IF out port on my K3 was the problem after having scoped all
I could and leaving it lay for a while.
I brought the K3, softrock(K3 IF version), laptop, power supply(needed the
power pole connections), cables etc. to the clubhouse for our weekly tech
session. Coordinated wi
That's true. Indeed, if you have an "antenna tuner" (built-in automatic or
external manual) you don't even need to do that. That's what made them so
popular in recent years; they "fix" impedance problems at the rig end
without fiddling around with the antenna at all.
The issue then becomes feed l
I've put my Gamma HPS-1a compact power supply on eBay (item number
130255861612). This power supply has been modified to include a fused
Powerpole terminated DC output pigtail. It does a great job powering my K3,
but it is really more appropriate for portable operation and I don't plan on
por
On Thu, 18 Sep 2008 05:36:40 -0700 (PDT), alsopb wrote:
>First question. What is meant by stable value of AFV?
>Here's what I see for a bunch of AFV edited values one after another with no
>change in K3 settings.
>1579,1688,1598,1624,1696,1613, 2168,1758,1425.
>The range is 6db.
Sure. It's au
That was the point I was trying to make originally. However, to be
fair, the feedline loss generated by SWR is significant only where
the loss is substantial enough to make a meaningful difference. At
HF, particularly the lower bands, the SWR loss is, from a
practical standpoint, insignificant.
Ho
ELECRAFT K1 QRP CW XCVR in mint condition – non-smoker. Covers 40,30,20 and 15
meters. Includes auto antenna tuner, backlight option, tilt stand, power cable
and manual. Only used in the shack. Will ship to DX stations. Price: $400 USD
plus shipping.
Reply to: [EMAIL PROTECTED] 73’s – Nor
Guy,
Your other choice is to find out what is causing the 'lock up'. It is
quite likely that it has nothing to do with the K160XV installation, but
is related to something you inadvertently touched or bumped during the
install process.
Take a more thorough look at what works and what does no
GM,
I built up and installed the 160m module. Powered on the K2 and it locked up.
No error messages on power on but no buttons will have any effect. VFO works
but that's all.
Removed 160m and began troubleshooting. The only observable issue: Resistance
between pin 1 and pin 10 on the 160m modu
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Charles Morrison
Since I don't plan on hanging off the side of the tower to operate my
station, isn't it more prudent to tune the entire "system", flaws,
feedline and all if my main concern is what SWR my equ
I've independently measured the linear range of the DBV function as just
over 60 dB, which is quite impressive. You can see the plot at
http://www.cliftonlaboratories.com/elecraft_k3_noise_blanker_and_crystal_dsp_filtering.htm.
That page also provides measured filter response curves using the K3
Since I don't plan on hanging off the side of the tower to operate my
station, isn't it more prudent to tune the entire "system", flaws, feedline
and all if my main concern is what SWR my equipment, in my shack, sees?
Charlie
KI5XP
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:el
Hi Brian,
The dBV and AFV functions were designed primarily for use with steady
state lab signals to test receiver sensitivity etc. We added these two
displays to speed our final test of the K3 in production, and as an aid
to do this in the field with simple tools like our XG2 test oscillator.
Please ignore
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All very true ...
> But the most unfriendly step was the
> last one, plugging the KRX3 module into the sub-in and
> sub-out connectors and managing the TMP coax. Plugging the
> Front panel into the main board was for me much easier than
> when assembling the K3 (experience curve impact, prob
> Alternately, feeding through one or more half-waves of
> coax will give you good accuracy while letting you get far
> enough away from the antenna to not affect the measurement.
Only if the feedline has zero loss. Force 12 are known for
making their antennas "look better" by specifyin
My KRX3, ordered Sept 18, 2007, arrived yesterday. It will be a nice
addition to my K3 #650.
Stan - K6VWE
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I've used it just fine in "lab type" measurements with a constant signal
source.
Which is precisely what it was designed for.
Is the reference value of AFV used in the dbV calculation the last one taken
at the instant one leaves the menu entry?
It is the last one. It might be the last one DI
Andrew,
That would not make the K2 dial reading any better than it is already.
The K2 does *not* use the 4 MHz reference on a real time basis for the
dial frequency reading.
It *might* be useful during the CAL PLL and CAL FIL process which is
when the K2 stores the frequency related data into
Unfortunately S/N 906 did not include the 8 each 4-40 7/8" flat head black
screws or acorn nuts.
These things are like hen's teeth in Metric Germany so I have my second
request in to Elecraft support (the first time I got 8 each short screws and
stand offs instead of...).
Vy 73, Bob DJ0MBC/WU5T
Hi does anyone knowif there are or were there any plans to introduce and
external frequency reference input (1Mhz or 10 MHz) to the K1,2 or 3, as
Rubidium and GPS off air standards are very cheap now days? and would make
a nice addition to the accessory line up.
If not, I can easily generate a
Apparently I need some help in trying to use this dBV capability with on the
air signals.
For example, using it as an AGC off "relative" S-meter with digital readout
to run some antenna pattern checks for skewness etc.
I've used it just fine in "lab type" measurements with a constant signal
sour
Please forgive the cross posting, especially if you aren’t a G or an M.
I have just found out that the company that provided the RSGB Radio
Insurance Plan
Catlin Insurance Company (UK) Ltd.
(as advertised in RadCom last year I believe) went out of business
sometime ago - I don't know when.
Hi Mike and Elecrafters,
I started assembling the KRX3 yesterday at 2 p.m. and switched the K3 on at
9 p.m. after having also installed additional crystal filters
(Better to do it at the same time rather than disassembling the rig once
again).
I'm impressed by those who got it in less than three
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