Maybe it was something with the setup.
That's an understatement.
Running kilowatt-level power on the same band to two antennas only 20
feet apart is simply crazy. I don't know what input protection the
KX3's have, but they almost certainly kicked in and being inherently
non-linear they
On Wed,7/1/2015 9:19 PM, jim wrote:
One evening during club meeting (alcohol was involved) a 30-06 made the pole
peg 100% defective. Power company replaced it, and the noise was gone ever
since.
I had a similar experience at an ATT Long Lines site in NorCal at which
I had an HF station
On Wed,7/1/2015 9:33 PM, Matt Z via Elecraft wrote:
KL7AA had two elecrafts at FD, a KX3 for SSB and a K3 for CW, and interference
was a definitely noticed. Each rig was wired to separate 3 element stepIRs,
about 20 feet apart. One rig used the elecraft 500w amp and one used a 1.5kw
amp.
with that sort of power level, you are looking at several devices failing, and
making the system deaf as a post.
KK4QDZ - Now with Extra Class Priv's, and a tiny KX3 to enjoy them!
From: David Gilbert xda...@cis-broadband.com
To: elecraft@mailman.qth.net
Sent: Thursday, July 2, 2015
I just got a pro 7 to use with my K3.
Definitely sounds better with the high selection (FP.H not FP.L) and, of
course, no bias as this is a dynamic element - it will short circuit the
bias.
The output of this element does indeed seem slightly low (compared with
HC-4) but if you close-talk it
Hello Matt,
Wow, with those power levels and a 20 ft spacing between 3 el yagis, you are
cruisin' for a bruisin'. I made some measurements at my home station with
two K3s on ten meters feeding different antennas. The antennas were 300 ft
apart. I aligned the two yagis to face each other and
On 15-06-27 02:00 PM, Harry Yingst wrote:
I used a Raspberry Pi and made a NTP server to hook to my GPSDO
I didn't really need one but I had the GPSDO with the NMEA and PPS output
and a spare Raspberry Pi
I also have a GPSDO that provides NMEA data and PPS output. It makes sense
for one to
Wes, good luck with that.
One more story that may be of benefit. But the summary is that such
noise may be caused by a source on one of may drops from this branch
circuit you're on. The source may even be on another distribution
circuit, though I don't think this is likely.
I had a timed
Try USPS Priority MailI came across the same thing a while back via
UPS.
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That appears to be exactly what was happening. I assumed that
conducted RFI is pretty well snubbed by whatever distribution
transformers were in between.
73,
matt
W6NIA
On Thu, 2 Jul 2015 09:34:28 -0700, you wrote:
On Thu,7/2/2015 7:20 AM, Matt Zilmer wrote:
In a staight line, this
The RF Gain control on the Sub RX acts weird. It will seem deaf until 3
o'clock on the dial. Once past 3, the gain jumps up and then is linear
if you turn it down. This pattern will repeat if you turn off the Sub
Rx and turn it back on again. The main RX Rf Gain control is smooth and
Hello Ken,
I use the Pro 7 w/ the HC7 element as well.
Tapping the 7 key while in MIC SEL will bring in the extra preamp
which in combination with FP.H will most likely be too much gain. If it
is, try leaving the 7 preamp engaged but drop back to FP.L and see if
that gives you enough gain. I
On Thu,7/2/2015 7:20 AM, Matt Zilmer wrote:
In a staight line, this
transformer problem was almost 1/2 mile away, and not even on the same
distribution circuit we're on here.
Remember that power lines RADIATE. Although I have no scientific
evidence to back it up, I suspect that most noise
An arching transformer is just a spark gap transmitter with a super long
antenna attached. Much lesser setups were used decades ago and provided
global communications.
Matt Zilmer wrote:
That appears to be exactly what was happening. I assumed that
conducted RFI is pretty well snubbed by
Aha - two questions at once.
My instruction manual says to tap [3].
For the front-panel mic only, additional microphone
gain can be enabled by tapping 3 . Use this only for
very low-output mics.
I also tried 4,5, and 6 . . . I should have kept going :-)
I asked Elecraft about this. Apparently
I had a very similar problem, also (very nearly) S9. I had narrowed down
the general area, and actually found it at night. I could visibly see the
arcing from an insulator. I called the power company with the pole number,
and they fixed it 2 weeks later. Try searching at night using
Hi Buck,
While the RF gain control results in digital advice being sent to the K3's
CPU, it is not an encoder like some other controls on the front panel. This
will not be a firmware issue.
The RF and AF gain controls are dual potentiometers. A standard voltage is
placed across the pot (the two
For the LF modification kit, KBPF3MDKT, USPS shipping
for one is $3.80
I need two. USPS shipping for two is $999.00
Seems a bit excessive. :-)
Jim - W4RKS
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That $999 price is Elecraft web site code for, This item can not be shipped by
this method.
73 Bill AE6JV
On 7/2/15 at 1:03 PM, w4rk...@gmail.com (James Wilson) wrote:
For the LF modification kit, KBPF3MDKT, USPS shipping
for one is $3.80
I need two. USPS shipping for two is $999.00
Must be the holiday weekend :-)
Phil W7OX
On 7/2/15, 1:03 PM, James Wilson wrote:
For the LF modification kit, KBPF3MDKT, USPS shipping
for one is $3.80
I need two. USPS shipping for two is $999.00
Seems a bit excessive. :-)
Jim - W4RKS
Jimjust order one,twice. Hi hi
Harlan NC3C
Sent from my Verizon Wireless 4G LTE smartphone
Original message
From: James Wilson w4rk...@gmail.com
Date: 07/02/2015 4:03 PM (GMT-05:00)
To: Elecraft elecraft@mailman.qth.net
Subject: [Elecraft] K3 Mod Kit Shipping
On 2015-07-02 2:06 PM, K4ia via Elecraft wrote:
The RF Gain control on the Sub RX acts weird. It will seem deaf
until 3 o'clock on the dial.
Perform an RF Gain calibration using an XG2/XG3 and the automated
procedure in the K3 Utility software.
During Field Day, if I hit the Esc Key or the
You must have selected US Post Office 1st Class [Small Parts, USA ONLY,
14 Oz Max.]
Each KBPF3MDKT is 8 ounces so when you added a second one, the order
went over 14 ounces.
You will have to select US Post Office Priority Mail [USA, AFO, FPO,
Territories] to get a reasonable shipping amount.
You can easily check any of the four potentiometers (RF/AF gains) for
discontinuities via a utility available from the K3's CONFIG menu:
First, turn TECH MD ON
Then, find the SW TEST option, rotate the VFO-A knob until you see Scn
Adc on the display.
Then, while observing the VFO-B area of the
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