Alan your explanation opens the door to erroneous conclusions. Frequently a
feed line does NOT have a low SWR by design. It is still a feed line in that
it carries RF from the transmitter site to the radiator with a minimum of
radiation from itself. A classic example is the Zepp antenna: a 1/2
" The common terminology is such a disaster that it is tiring to fight it."
Too right!
73, Ron AC7AC
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Post:
Fred, isn't that where the antenna starts, or are you limiting "antenna" to
mean the radiator itself?
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Fred Jensen
Sent: Monday, February 19, 2018 3:52 PM
To:
FWIW, this is not the ONLY list getting tons of old messages, so it is not
Ele-specific. Another that I am familiar with is QRP-L.
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kev Schache
Sent: Wednesday,
If you are interested in building as well as operating it's a pleasant
experience. Just like a 10 mile hike, you do it one simple, easy step at a
time.
Those who seem to have had trouble just wanted a K2 to operate and tried to
put the kit together as quickly as possible without double-checking
First licensed in 1952, I've never felt as good operating any rig as one I
built myself, either from scratch like my first Novice rig or at the very
least from a kit.
I still remember running net control during a Civil Defense exercise from
W6CV in Southern CA, a station owned by a good friend
It's important to remember that when the "UHF" (239 series) connectors were
developed, UHF meant 28 MHz! Almost no work was being done at over 100 MHz
and the FCC did not even care what one did over 300 MHz: My 1941 ARRL
handbook shows that Hams could do whatever they wanted at such absurdly high
First, let me assure you that with 19 years experience working with Elecraft,
running (and sometimes abusing) their gear while writing many of the Elecraft
manuals, they ALWAYS use very conservative designs. There is no reason
whatsoever to run less than 500 watts with the KPA500 in terms of
Here is one source:
https://cabling-supplies.com/dual-rg6-standard-shield-coaxial-500ft-black.ht
ml
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob McGraw K4TAX
Sent: Tuesday, January 16, 2018 1:27 PM
To:
Right. The mats are usually grounded directly since they have a fairly high
internal resistance, while the wrist strap that features a metal contact to the
user has a 1 meg resistor in series.
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
A mistaken idea that many Hams get is that a wire antenna has no radiation in
the "nulls". For example, a half-wave wire is often thought of as having no
energy radiated off of its ends. There is LESS off the ends, but a real-world
wire has some radiation in ALL directions as Dave notes. It's
I follow Elecraft Engineer Paul's advice (after he studied the electrical
characteristics of a number of mats) and avoid any mats that do not specify
their ohmic values. Too often, such mats better insulators than static
dissipating devices.
So I'd at least e-mail the manufacturer for
The trapezoidal base paddles sound like they may be "Scotia" paddles from the
1980's. They are still my 'far and away' favorite paddles with a solid brass
base on wood and use magnets instead of a spring for return force adjustment.
73 Ron AC7AC
-Original Message-
From:
A longer wire produces sharper lobes and, taken to an extreme, the pattern
breaks into multiple lobes. So it all depends upon whether the other station
is aligned with one of the lobes.
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
the ground, horizontal polarized radiation becomes dominant and the
radiation pattern always has a deep null off the ends.
73
Frank
W3LPL
- Original Message -
From: "Ron D'Eau Claire" <r...@cobi.biz>
To: "Elecraft Reflector" <elecraft@mailman.qth.net>
Sent: Th
Understand that a true "long wire" (greater than 1 wavelength) starts to be
directional off of its end (if fed at one end, that's the opposite end).
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rich Arland
Hexagonal base. The shape of the base confuses mistakes so most do not make
it to the paddles thereby improving sending. It's certainly worth the >$300
to trap errors, isn't it?
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
The EFHW with open wire line such as you describe is the classic Zepp antenna.
They are a single-frequency antenna designed for the Zeppelin airships, hence
their name. The radiator is exactly 1/2 wavelength long (electrically) with an
electrically 1/4 wave long open wire feeder. At 1/4 wave
Back when I and my buddies were learning CW we had to pass 5, then 13 wpm
sending tests at the FCC to get our license. That provided reassurance that our
fists were readable. The same was true for my commercial radiotelegraph license
using a straight key at 20 wpm.
But, IMX, the best
I agree with Ray. Even if your fist is really rough it is simply great
practice for both of us; you sending and me receiving. And you'll be
surprised at how fast you improve!
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
You are quite right. I cut/pasted that from a PDF and apparently the clipboard
did not recognize the ^!
Thanks!
73, Ron AC7AC
-Original Message-
From: Phil Kane [mailto:k2...@kanafi.org]
Sent: Saturday, December 23, 2017 8:40 AM
To: Ron D'Eau Claire
Subject: Re: [Elecraft] Upgrading
Be aware that some "antistatic" mats are just pieces of soft vinyl without any
real antistatic properties.
One of the Elecraft engineers studied several mats and came up with the
following information included in the newer Elecraft manuals:
"Typically, a mat will have a resistance of up to 1
A 20% error is not at all unusual in commercial wattmeters either. The famous
"Bird" units are only accurate to 5% of full scale. That means that if you are
reading 1/2 scale the accuracy is only 10% and only 20% as 1/4 scale. Since
Hams tend not to buy all the slugs needed to ensure their
A key time and mistake-saver is to be sure to check off each step in the
assembly procedure as you complete it. Double check to be sure it was done as
stated before checking it off. That is why Wayne has mandated check boxes on
all significant steps, so you can be sure where you left off after
I certainly sympathize with your feelings Fred. I too quit contesting when all
RSTs were 5NN and rude behavior became acceptable. That was a long, long time
ago.
I just segue to 30 meters or QRT until the mayhem is over and I can have a real
QSO with someone.
Operating is, for me, a form of
Back when telegraphy was the most common way to pass traffic, either on wires
or by wireless, many systems such as Western Union welded the weights on the
semi-automatic keys for a dit speed of about 15 wpm and did not allow operators
to use their own keys. That was based on long studies that
Hi Wayne: The only 10 meter Repeater I know of here in western Oregon is
KR7IS on 29.6800 kHz in the Portland area. It uses a -0.1 MHz offset and
162.2 tone, so I can't help with your other two questions.
73 Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
Fred, it's called LiFi and uses the ability of LED light sources to handle high
frequency modulation to send data securely since one has to intercept the
actual beam to even get the data, much less decode the information. Apparently
pretty high data rates are possible with the system.
Here's
I have a several linear wall-warts that I collected over the years which I
guard jealously.
However a few of them are only a transformer and provide low-voltage AC to the
equipment. The rectifiers were included in the item being powered.
73, Ron AC7AC
-Original Message-
From:
Kev:
What you have been doing is fine! Many operators "train" their KAT500 as Don
described, tuning at least once in each segment across all the bands you use
so the KPA500 will memorize the L and C settings. That avoids being
surprised by an "auto-tune" occurring after a quick QSY while running
http://www.navy.mil/submit/display.asp?story_id=92864
73, Ron AC7AC
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This
MFs would be great for use on repeaters.
Stan KD8KBX
On Thu, Nov 16, 2017 at 5:39 PM, David Ferrington, M0XDF <
m0...@alphadene.co.uk> wrote:
> For me, nothing, great kit, great employees, great associates
>
> -73 de M0XDF (from my iPhone)
>
> > On 16 Nov 2017, at
Hi Samir:
The specs on the XV144 look very similar to SB144H. It looks like other are
finally "catching up" with the Elecraft designs.
What features are you looking for that the XV144 lacks?
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
SW TONE won't silence it?
>From page 65 of the KX3 Owner's manual:
'... Switch press tones are enabled by default. Using the
SW TONE menu entry, you can turn tones OFF,
ON,..."
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
With respect, obsessing over perfect code is like demanding that no one speak
your favorite language without an accent of any sort.
It's easy to do. Use a keyboard with pre-stored messages.
But many of us prefer non-canned messages even if they involve some oddities in
the sending.
I've
After more than 50 years "pounding brass", mostly with either a bug
(semi-automatic) key or paddles I still make time for practice sessions -
especially if I've been off the air for a while. My favorite is to send names,
addresses and numbers from a telephone book (they are getting rare, but
Yep, 1998 I believe. I built mine in 2000 and it was S/N 1289 after working
several of them on the air the previous year or so.
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Johnson
Sent: Wednesday,
I believe the K2 was sold in 1998. I built mine in 2000 after working a few
on the air. My K2 is S/N 1289.
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Person
Sent: Wednesday, November 8, 2017 8:41 AM
It doesn't. But having the grounded tower helps bleed off the charge
building in the atmosphere in the immediate vicinity, greatly reducing the
likelihood of the charge reaching a high enough level to ionize the air and
produce a major lightning discharge.
Once the air ionizes it becomes a good
I'm old enough to remember, as a kid, people of my grandparent's age worried
that the electric "juice" would leak out of unused sockets.
73, Ron AC7AC
-Original Message-
This whole incident didn't help in my campaign to convince my cousin that
electricity is really safe and you
3 Transmit Monitor
Ron D'Eau Claire wrote:
I presume that by "draft" you are looking at a prelim copy of the KPA1500
Owner's manual.
---
Yes, Ron. KAP1500 Owner's Manual Revision A1 (Draft) dated August 9, 2017.
To further simplify its block diagram the
I presume that by "draft" you are looking at a prelim copy of the KPA1500
Owner's manual.
To further simplify its block diagram the signal path is like this:
TRANSCEIVER (external) --> AMPLIFIER --> INTERNAL SWR BRIDGE --> ATU -->
ANTENNA SYSTEM (external)
The SWR briege in the KPA1500 will
Did you mean KXPD3?
73 Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of w4sc
Sent: Wednesday, November 1, 2017 11:00 AM
To: Elecraft
Subject: [Elecraft] KXDP3 for sale (NEW)
NEW KXDP3 for sale. $95.00 shipped
I pictured buccaneers holding cutlasses in their teeth coming out of the
receiver to take over the shack!
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wes Stewart
Sent: Sunday, October 29, 2017 2:51 PM
When writing and validating the kit assembly procedures, I restrict myself
only to the basic hand tools recommended by the design engineers. The
objective is to avoid customers having to go out and buy additional tools
that are not really needed. If I find that I cannot do a particular step
with
The K2 is a kit built by the customer, not Elecraft.
With respect, my experience is different from Mel's. In many years working
electronics field and shop service industry have found that re-tightening
hardware subjected to thermal stress is commonly required by manufacturers.
Manufacturers
I doubt if anyone expects the receiver to survive if you hook the output of
even a 10 watt transmitter directly to the receiver antenna connector. If
the layout of a multi-transmitter site does not include consideration for
substantial separation between antennas, there will be failures.
The
Looks neat and like a lot of fun, but around here I could hire more than
half a dozen climbs by an insured expert for the >$800 cost of the system.
And they install a screw eye in the trunk for a stable and nearly permanent
attachment. I have them install a pulley attached to the screw eye so I
Your foil antenna sounds a great deal like Marconi's first antenna used on the
family estate to prove radio waves were not just "line-of-sight".
https://readtiger.com/img/wkp/en/Marconi%27s_first_radio_transmitter.jpg
73, Ron AC7AC
-Original Message-
From:
Yes! Like most equipment these days, the K3 needs to do an orderly shutdown
under control of its processor to turn off safely and reliably. Like your P.C.
you can pull power unexpectedly and it will often recover okay when power is
reapplied, but you can also get corrupted data that forces a
Oregon is still on fire, in spite of rains. The big fire in the Columbia River
gorge (Eagle Creek fire) is only 5% contained. There are several others as well
that will not likely go out until sometime over the winter months.
The huge difference is that the Oregon fires are in mostly
Those were the days when a mobile operator would make his engine stall by
pressing the PTT when the engine was idling at a stop light.
One guy I knew tore out the whole back seat of his sedan and filled it with a
KW AM rig (bachelor of course). His mobile antenna featured a copper toilet
tank
It's worth checking continuity through the cord as well. The wires in the
stretch cords do sometimes break. I used to service radios on large ships,
and broken stretch cord wires on the VHF bridge radios were common. The wire
usually looked fine - the insulation was intact - but the stranded wire
Note that the internal tuner cannot co-exist with the KPA100 amp. The amp
uses the space occupied by the optional battery pack and ATU. Installing the
ATU/Battery cover with those accessories makes for a nice, one box, QRP
portable rig. It's not a huge issue to swap top covers, changing the K2/100
Whenever I'm doing anything with a powered-up rig and don't want to
transmit, I have a dummy load on the antenna port. That way the worst that
can happen is that I waste a little energy warming the dummy load.
You are my kind of Ham, Peter. I'm not bothered by choosing between a dozen
switches
As Phil noted that all ended in 1999.
I serviced many of those consoles while they were still required and found it
interesting how the economics worked. For example, the required "back up"
receiver was a crystal detector for many years after "high tech" regenerative
receivers were added. In
It can be useful to explore the really old QST and radio handbooks published
in the 1920's and earlier - especially earlier when many Hams were operating
from small urban lots on wavelengths of 300 to 600 meters.
At first glance many look much like today's wire antennas. One or more
horizontal
Possibly Fred. I didn't specify because by the 1980's there were several newer
types with the same features - some even solid state! They all went away when
the 500 kHz distress frequency was abandoned in the 1990's.
73, Ron AC7AC
-Original Message-
From:
My reaction to "phone" exactly, since a typical "AM Phone" signal will
occupy 6 of the 7 kHz!
Back in the days when shipping used these frequencies, only Morse was
allowed for routine communications although modulation was applied to
produce MCW for emergencies. That was a carryover from the
Eggzactly! Acronyms are for creating confusion and misunderstanding outside
of a small select group, not for communicating with others in general.
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dean L
Sent:
Perhaps it is saying the obvious, but when considering the power
requirements of a home determine how it is heated. Here in Oregon, in the
land served by the Bonneville Hydroelectric dam, a great many homes like
mine are heated electrically. We have a forced air system that employs 3
electric
In the HRO-7 coil sets (that I had) they were screws that changed the
connections.
It was a fun thought experiment for those of us who had HRO receivers.
I miss my HRO but mine came to me from W6HUA - Field Gray who was Jack Webb's
art direction on the original Dragnet TV shows and well as
The advantage of controlling the gain manually is not an "old wife's tale".
Rather, it's clearly just a technique that is not for everyone.
AGC will reduce the gain according to the strongest signal inside the I.F.
passband. Manually riding the "RF" gain ensures that a very weak signal is not
What an "antenna tuner" does for you depends upon where you install it.
There are two places where a low SWR is important: the load the finals in
the rig "see" and the load the transmission line "sees". In most HAM
installations the load the finals see is probably the most critical because
if it
I wonder if that had anything to do with (in the past at least) 50V and up were
considered "dangerous" voltages that required special protection and warnings.
Of course any of us who happened to get across the circuit with even a 12V
battery and a large inductance in series disagreed - after we
So far (it is Saturday evening) the roads here on the coast at Newport are
quiet for this time of the year. But the Oregon coast is not the easiest
place to get to anyway. I won't mind if it stays quiet through Monday!
Anyone can check Oregon road conditions and see the road cameras here:
e.
73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County
On 8/18/2017 11:57 AM, Ron D'Eau Claire wrote:
> Other than I-5, Oregon's highways are one lane each way with few exceptions
> in more built up areas. As Eclipse viewers arrive, the roads fill up fast.
> Local new
Other than I-5, Oregon's highways are one lane each way with few exceptions in
more built up areas. As Eclipse viewers arrive, the roads fill up fast. Local
news reported that one town in the eastern Willamette Valley had a 30 mile long
bumper-to-bumper back up yesterday. I-5 should be moving
Sometimes convenience is more important than 3 dB of power. That is the case
for many installations, including those T2FDs on National Guard armories.
After all, EVERY antenna is a compromise of some sort. For example, consider
the unidirectional Rhombic antenna, a staple of major commercial
And we used to think plasma panel TV's were bad! Argh!
73 Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown
Sent: Saturday, August 12, 2017 8:08 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft]
ThenWHY are YOU pursuing it ???
73 Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Clay Autery
Sent: Wednesday, July 26, 2017 6:21 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Signing "/QRP"
Yep, and that is what I do too.
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Drew AF2Z
Sent: Wednesday, July 26, 2017 7:31 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Signing "/QRP"
Since QRP
I agree 100% with Wayne about "...built my own radio..."
Along the same lines, I answer any signal that sounds less than "perfect". It's
more than likely it's a HB rig which leads to a very interesting QSO.
Now, I will admit to having had a QSO when I said my power was less than 5
watts and
It's useful to remember that a screw (or bolt) is a spring. When tightened
it stretches lengthwise. Like any spring, it offers the best "grip" when
subjected to the right range of pressure.
Way back in my High School days (1950's - before Mercury was a toxic
substance) I watched a demonstration
I suspect you are right, since the website lists it as an "Adhesive".
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark Goldberg
Sent: Monday, July 24, 2017 2:38 PM
To: Ron D'Eau Claire
Cc: Elec
something like 40 different formulations of Loctite Threadlocker.
It's a great product *if* you select the correct one for your application.
The wrong one can be a disaster.
73,
Josh W6XU
On 7/24/2017 12:48 PM, Ron D'Eau Claire wrote:
> Perhaps Loctite has change
I avoid Loctite after using it to secure a steel screw and nut holding a
plastic part. Over the next six months the plastic around the screw
disintegrated - crumbled. That was several years ago. Perhaps Loctite has
changed the formula, but I haven't succumbed to making another test.
I found that
Yes. It just takes switching the 8-wire connection to a new sensor with
something like this:
http://www.computercableinc.com/ccinc/products.jsp?sub=Switch+Boxes+-+Manual
=1173
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
I thought that was how FM antennas were implemented in some cars already, but
without using resistance wire.
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Randy Bright
Sent: Saturday, July 15, 2017 8:18
There is nothing wrong with immersing the plastic bezel in a dish of soapy
water. Just be sure it's a liquid soap in the water and not a scouring
cleanser.
After washing, using my fingers to gently rub the bezel in the soapy water,
I lay the bezel on a soft terrycloth towel or even a paper towel
I keep an air duster handy to blow off the LCD and inside of the bezel just
before mounting it.
I agree 100% with the liquid dish washing detergent suggestion to clean the
surfaces. It's what we recommend in the kit assembly manuals for all the
Elecraft rigs.
However, never spray, dribble,
If it was mine, I'd start by dropping it onto the operating desk from a
height of about 6 inches, onto the bottom feet and, if that didn't make it
quit, onto the side feet.
I presume the cables you checked were external to the K3. There are a number
of coaxial cables with TMP connectors around
Clay, I believe it has to do with danger to your equipment should the
connection between the battery and the chassis open. In that case all the
current to all the automobile systems, from starter to lights to ignition,
radio, etc., would flow through the ground path provided by the radio if it
is
o:n...@elecraft.com]
Sent: Sunday, June 18, 2017 4:51 PM
To: Ron D'Eau Claire
Cc: Irma & Linas(LY2H); elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX2 heatsink
Auto power reduction happens at 63 C. But it may very well have gone down to
55 C awhile after dropping to 5 W.
Wayne
N6KR
--
Sri, I meant the temp was 55C, not 45C after the automatic power reduction
kicked in.
73 Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron D'Eau Claire
Sent: Sunday, June 18, 2017 4:28 PM
To: 'Irma & Linas(
Fired up my "stock from the factory" KX2 into a dummy load at 10 watts, key
down, and it dropped to 5 watts after 4 minutes running from a 13.8 vdc
supply. PA temp was about 45C.
Hope that helps with your analysis.
73, Ron AC7AC
-Original Message-
From:
I dislike the peanuts too but about the static charge note that all the
Elecraft manuals instruct builders to wear a grounded wrist strap or as a
minimum, touch a metallic ground before touching any sensitive parts.
73. Ron AC7AC
-Original Message-
From:
By now someone must have done a graduate thesis on the lost productive hours
caused by people chasing those things.
So how many cubic kilometers of peanuts are lying buried in landfills? How
many are stuck in the guts of hapless seagulls and other scavengers?
Boggles the mind.
73, Ron AC7AC
In military and commercial brass pounding in the USA, we were limited to
something between 13 and 20 wpm, usually closer to 13, because long studies
demonstrated that slower is faster because of fewer mistakes copying every
letter correctly on a keyboard or paper. And hearing whole "words" was a
On my few excursions into SSB land, I've actually had operators answer my CQ
saying I was "off frequency" because I was not aligned exactly on some
multiple of 500 kHz.
I apologize for any confusion and state that I am on XXX.440 or some similar
"non 500" frequency. And then return to CW.
I do
Agree with Don 100%. Keep in mind that the power is divided between the
counterpoise and the end fed antenna wire. The power divides according to
their impedances; if the impedances are equal, you lose 3 dB (half of the
power) in the counterpoise. So the idea is to have the counterpoise present
Hi Jim:
I KNOW I learned Morse all wrong, according to today's experts. Listened to
ARRL bulletins, code practice tapes a neighbor Ham made for me and a buddy
and practiced sending on a straight key focusing on proper spacing at all
times.
I can copy 40 to 45 wpm in my head, 35 wpm on a
Terry, to answer your question, that ground connection simply ensures the
balun pcb and the outer shield of the coax cable feeding the balun remain at
a low RF potential, even if you feed a fairly high impedance load.
You are correct to connect them to the A and B terminals. Either wire to
Quite so. It's been a number of years since I drove up and down that
mountain several times a week servicing repeaters for General Communications
Engineering, but there were also a number of repeaters there in the old Land
Mobile frequency range of 30 to 50 MHz as well as the VHF and UHF
For a combination of campfires and great operating environment you might
look into one of the beaches on the coast, such as New Brighton State Park
in Capitola, just south of Santa Cruz on the Monterey Bay. You probably
won't have any issues with a campfire in the locations designated for
camping
Isn't that simply focused on WWVB propagation to see the effect on VLF
signals?
73, Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tom Francis, W1TEF
Sent: Friday, June 2, 2017 12:20 PM
To:
Hi Alan:
Use Rev B. Rev A of the instructions had an error that was corrected by an
errata. Apparently you don't have that errata. The change was subsequently
included in the Rev B printing.
73, Ron AC7AC
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On
I have found that having a KXBT2 around is very handy in the shop. If I have
the K2, K3, KX3 or other 13V rig on the bench and want to power it up for
checks, to run an alignment, etc., I just plug in the KXBT2.
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net]
Right, Roy. It's a whole different cooling system. The K2 has an EXTERNAL
heat sink. The fan assists by cooling the components inside the KPA100 amp,
pushing air in across the components and out through holes around the
forward edge of the heat sink. The heat sink fins are on top of the K2 in
open
It is useful to remember that a so-called "balun" is nothing more than a length
of transmission line - most commonly parallel wires. The line needs to be long
enough to have sufficient inductance to produce balanced currents at the
terminated end. Greater inductance is achievable by winding the
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