) of the
roofing filter I used during the gain cal? Should I repeat the RF gain cal?
Third question:
What exactly is calibrated during an RF gain cal?
I understand in a general sense that the overall RF/IF system gain is
determined by many things, including scaling constants in the DSP.
Thanks 73,
Chuck
Wayne,
Thanks for the very prompt and very thorough answers to all of my question!
73,
Chuck NI0C
Wayne Burdick wrote:
Chuck Guenther wrote:
Is there any problem using the Rx input jack for the RF gain cal
No. Works equally well.
Suppose that I do an RF gain cal, then change
I sure like the NR performance on CW even with very narrow filtering.
The new NR has enabled me to copy stations that had been obliterated
by noise at my rather noisy inner suburban QTH.
73,
Chuck Guenther NI0C
K2 s/n 5853
K3 s/n 1061
row 1, column 3; therefore
SWT11 refers to a tap on switch row 1, column 1 (A/B).
73,
Chuck Guenther NI0C
K3 s/n 1061
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and shift.
It only
takes a click of the mouse to change between 10 Hz and 50 Hz increments.
(DXLab is free!)
73,
Chuck Guenther NI0C
K3 s/n 1061
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Wayne, N6KR, wrote:
I'd like to thank everyone who's been testing the K3's new macro feature.
It appears to be working as intended, allowing operators to customize
SPLIT and other operations as needed.
Use of these MACRO's for setting up K3's in split mode will virtually
eliminate mistakes
Joe Subich, W4TV wrote:
If you're inclined to use a rig control program, DXLab's
Commander now has very nice slider controls for adjusting the
K3's bandwidth and shift. It only takes a click of the mouse
to change between 10 Hz and 50 Hz increments. (DXLab is free!)
The 10 Hz/50 Hz
Dick, PA3CW, asked:
It would be nice to 'undo' the SPLIT+2 function by a second
key press...is that possible in the MACRO language?
Good idea for a MACRO, Dick.
Try this MACRO I call UNSPLT: SWT13;SWT13;SWH13;RT0;XT0;
73,
Chuck NI0C
K3 s/n 1061
Greg - AB7R wrote:
Or just a HOLD of the SPLIT button to turn it off???
Of course that will work, Greg; however the UNSPLT macro has the
advantage of equalizing VFO A and B frequencies and bandwidths and
undoing the split with a single keystroke.
73,
Chuck NI0C
K3 s/n 1061
Richard, HB9ANM, wrote:
Right, Chuck - or even simpler: FR0;
Thank you. Actually FR0 is much better for an UNSPLT macro.
The problem with using SWH13 is that it would actually put the
K3 in split mode if it wasn't already there. So here's a better
UNSPLT macro that will undo any splits between
Wayne, N6KR, wrote:
: this feature is perfect for automating multiple switch presses on
your K3.
I'm really happy with my simple CWSPLT and UNSPLT macros that I've
assigned to PF1 and PF2. Haven't had so much fun programming since
the days when I fully mastered programming my HP-67 calculator.
Don Wilhelm, W3FPR, wrote:
It is easier for me to just do the steps manually than to remember
what macros I put into the K3. 4 is about the limit that are managable
IMHO, and maybe that can be expanded to 8 for some things -
this is a case of 'less is more' for me. I just don' like magic
Merv, KH7C wrote:
[the K3] sure makes for nice DXing on topband.
The ARRL 160 contest brought out a lot of strong stations,
some of whom weren't hearing very well. There were cluster spots
coming in from DX that couldn't get the attention of some of the
stateside CQ'ers. I spotted one W8 who
Doug, KR2Q wrote:
I have a RS wall wart rated at 14 watts (12v, 500ma).
Is there any reason why I should NOT use this as the PS?
Hmm... 12V at 500 mA is only 6 watts-- perhaps the 14 watts
refers to the power drawn by the wall wart while supplying rated current.
If that's the case, then I
[With regard to the need for instrumentation]
W3FPR wrote:
So, the question becomes - What degree of accuracy in power output
and S-meter reading do you wish to achieve? The default settings will be
very close, but with the added instruments, one can achieve a higher degree
of confidence in those
I agree with Jack's remark below. I especially appreciate Bill Tippett
(W4ZV) sharing his operating tips with the group, and have printed his
recent messages (as well as the referenced info from K3NA) and
enclosed them in my K3 operating manual for future reference.
73,
Chuck NI0C
K2-10 s/n
Stan, you asked a good question-- one I asked about some time ago.
When I worked in the aerospace industry, I designed and used analog
and digital filters for measurement applications. Most textbook design
formulas and procedures are based on 3 dB bandwidths, although sometimes
our measurement
I built the K2-10 (s/n 5853) with lots of accessories for QRP CW.
Assembling the K3-100 was a piece of cake, compared to the K2.
Just a couple of days ago, I finished hooking the two together for
dual-receive
(I haven't yet purchased a KRX3). This application was inspired by
G4AON's reflector
I've been pleasantly surprised at how well NR works even with
very narrow CW bandwidths. I routinely use a 250 Hz roofing filter
followed by 250, 200, or 150 Hz DSP filters for Top Band. The NR
set around F1-2 or F1-3 quite often makes a difference for me.
It wasn't always this way.
Thanks to
J.R. Groeger wrote:
I seem to remember talk some time ago about a variable bandwidth
crystal filter becoming available for the K3 at some stage. Anyone know
the status of its development?
With the upoming 10 Hz resolution DSP upgrade (Firmware 3.23 being
talked about), I certainly wouldn't
I simply meant that if folks were looking for a more or less
continuously variable selectivity in the K3, then the 10 Hz increment
DSP filters would provide that, for all practical purposes.
73,
Chuck NI0C
Ed K1EP wrote:
At 8/5/2009 07:51 PM, Chuck Guenther wrote:
With the upoming 10 Hz
. The casual operators will have great success
with only the 2.7 kHz filter, but a contester will want a full
complement of roofing filters to fight those 'tough times'.
73,
Don W3FPR
Chuck Guenther wrote:
I simply meant that if folks were looking for a more or less
continuously variable
I thought readers (especially those now building their K2's) might be
interested in my review of the Rework Eliminators now found at the eHam
website, under Product Reviews, QRP Accessories.
73 Happy Holidays to all,
Chuck NI0C
K2 s/n 5853
___
All the rationalizations and anecdotal experiences aside, there is no escape
from the physical reality that a 100 watt station will be 13 dB stronger than
the same station running QRP 5 watts. Whether or not this 13 Db is crucial
depends upon propagation conditions and noise and QRM levels at
Ron, wb1hga, wrote:
I will still prefer my K1.
I can't argue with your preferences. The K1 is a fine rig, I'm sure. I have a
Wilderness Sierra (Wayne Burdick's predecessor to the K1), and I enjoy making
QSO's with it. However, when I hear a KW contest station on 80 meters working
from a
This has certainly been an interesting discussion. Usually this question comes
up in asymmetrical situations-- where the op at one end is running QRP power
levels and/or using a marginal antenna, and the person on the other end is
running power that may be orders of magnitude higher than QRP
As Don, W3FPR has already pointed out, alignment of the K2 is straightforward
and requires no test equipment. By following the instructions in the manual,
as well as the frequency calibration info provided on Don's website, my dial
calibration is now accurate within about 20 Hz, using WWV as a
For a few days now, I've been driving my Ameritron AL80B amplifier with 10-15
watts from my K2, yielding roughly 100-150 watts output on CW (no QSK). It's
been working very well. I thought I'd share how this is implemented, in case
anyone else is interested.
I have three rigs (Omni 6, K2
Geoff, G3NAQ wrote:
So I have installed a dummy panel in the shack on which a number of
difficult-to-adjust trimmers and coils are mounted, all requiring
different
trimming tools which I usually have to hunt around to find. Thus, when I
hear that weak DX I just can't copy, and get those
I'm now working on the KIO2 kit for my K2. I've used both the K1EL WinKey and
a microHam micro Keyer with other rigs and like these products very much.
Since my K2 is CW only (and will stay that way), I'm thinking of getting the
microHam CW keyer for use with the K2.
The microHam website
I completed my KIO2 assembly, and it does passes the smoke test, and DC
voltages at J1 measure okay, but does not communicate. It draws roughly 20 mA
when powered up from the K2. As the serial port in my laptop is inoperative
(has been for a long time), I've tested the KIO2 using a Belkin
Dave Wilburn wrote:
Noise blanker-If I am operating from home, is this needed? I'm kinda on the
fence with this one. My only experience with NB are on the commercial rigs.
I understand this one is better, but I have never really seen any impact
from using any of them. The archives seem to prove
Accurate Adjustment of K2 BFO frequencies for CW
Although this subject is well covered already with appropriate links to
procedures provided on the Elecraft website, I thought I would share my own
procedure for adjusting the BFO frequencies. This procedure does not require
the use of a
Is anyone else having trouble downloading this latest Builder's alert? I'm not
getting it from the website, although I can download the Soldering Tutorial
just below it. I tried copying and pasting the .pdf address from the subject
original message to no avail.
I'd really like to see this,
I doubt that it would be as effective as the noise reduction feature of the
KDSP2 module.
73,
Chuck NI0C
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I just submitted my score summary to the scorekeeper. Only nine QSO's this
year: four on 40m and five on 20m. Heard no EQP activity on 80m. Lots of
competition from the OK QSO Party-- those guys are loud here in Missouri on 80
and 40m!
W1SOC had an oustanding presence, and he was the only
Since the K2 filter ultimate rejection is apparently sensitive to the lead
length of the ground leads on the filter crystals (Elecraft instructions
require the crystals be grounded near the bottom of the cans), it is not
surprising that experiments with add-on filters resulted in compromised
Jeff,
For a 50 ft. run, if your existing coax is in good shape and fairly new, I
wouldn't bother replacing it now, at least for HF work. When it does need
replacing, the Davis Buryflex is mighty good stuff. I recently replaced a 10
year old 50 ft. section of RG-213 with Buryflex, as some of
Last year, I built my first Elecraft kit, KX1 s/n 1287, and loaded it with the
antenna tuner and one of the first KXB8030 modules. I liked the rig a lot, and
made lots of good QSO's with it , including some good DX on all bands. Then I
strayed. I swapped the KX1 for a Wilderness Sierra,
Jim,
Congrats on taking on the K2! I'm just a couple of weeks ahead of you,
feverishly working on s/n 5853, the low power version.
Regarding the power supply-- I'm starting out with a Pyramid PS-4KX (13.8 V.
3A continous, 4A surge) that I have on hand. Since I also purchased the KBT2
I'm looking for suggestions and likely goofs on my part that might be the cause
of the following symptoms with my brand new K2:
The receiver appears dead to an antenna input. I have installed the 160m
receive kit un-module (whose function seems only to replace the jumper at
W-1.) I also
Success already! Thanks to Don!
My problem was caused by failing to install the W6 jumper and C6 on the RF
board. (I had skipped these steps, because they were referenced in the
literature for the re-work eliminators). The fault lies with me, not the
instructions-- I should have paged
Tom, KG3V wrote: So do you just buy the ones for the
options you expect to actually install at some point?
Also, if I bought the DSP filter and intend to install it, is the rework
elimnator still useful for using the rig without the DSP, or if I want to
install my own filter in place of the DSP
To Don and Ron and others:
When I wrote my last post, I was unaware of Don's latest post giving some of
the caveats with regard to the Rework eliminators.
Certainly this is a very timely topic for me-- in the midst of my first K2
build, and following my latest goof (forgetting to install W6
I am pleased to report that K2 s/n 5853 is in the transmitter alignment phase,
and all is going well. Work was interrupted for a few days because we lost
power in Thursday's ice storm here in STL. The house was down to 50 deg. F,
when power was finally restored.
Christine at Elecraft does
The K2 is progressing nicely. Yesterday, I had quite a bit of time to work on
it and installed the internal battery speaker, the K160RX module, and the
KDSP2. These all checked out fine. The rework eliminators and instructions
were quite helpful in getting these options incorporated.
I
It's all buttoned up after completing the transmitter alignment: QRP CW K2 with
160m module, internal battery, and the KDSP2 module.
I've got it set up for 400 Hz pitch, with XFIL's at 700, 400, 300, and 150 Hz
nominal bandwidths, with BFO frequencies initially set as suggested by Don,
W3FPR.
I'm enjoying the KDSP2 module in my K2. It is the most effective audio DSP I
have used. I have some questions, though.
1.) The filter C1, or c1 comes up on the menu as a lowpass filter and seems
to be fixed. Can it be changed to a bandpass ? If so, how ? The manual is
not clear on this.
have not heard from Elecraft support on this.
73,
Chuck NI0C
- Original Message -
From: Jean-François Ménard [EMAIL PROTECTED]
To: Chuck Guenther [EMAIL PROTECTED]; elecraft@mailman.qth.net
Sent: Wednesday, December 13, 2006 8:16 AM
Subject: Re : [Elecraft] KDSP2 questions
Just switch
checked out the
KNB2. Then I reinstalled the KDSP2 and now have solid communications with
it.
Thanks to both of you for your assistance.
73,
Chuck NI0C
- Original Message -
From: Don Wilhelm [EMAIL PROTECTED]
To: Chuck Guenther [EMAIL PROTECTED]
Cc: elecraft@mailman.qth.net
Sent
. I'm using a Radio Shack 3-12 V. @ 1000 mA adaptor (Catalog
No. 273-1680) for a DC power source.
Next step will be to assemble the options: paddle, auto-tuner, and 30m kit in
that order. I'm looking forward to operating this little jewel on vacation
trips.
73,
Chuck Guenther NI0C
This subject has been discussed on the TenTec reflector, too. I tend to agree
with K2VCO's ideas concerning the ear's ability to discern slight differences
in pitch better at low frequencies. Bill Tippett, W4ZV, really got my
attention when he divulged that he uses very low pitches (below 300
This weekend I shamelessly leveraged some of the best contest stations in the
world to manage 47 QSO's in CQ WW CW contest using my new Elecraft toy running
about 4 watts to an MA8040V vertical. I used the auto tuner to match the
antenna on 20m, and I snagged TF3CW, 5Z1A, PZ5C, and TZ5A. The
Hi, Tom
My KX1 is brand new. I didn't know if I'd like the KXPD1 either, but I decided
to give it a try. My usual paddle is an old Brown Bros. iambic-- comparable to
the Bencher. I use single lever techniques (never quite got the hang of the
squeeze techniques).
As I was assembling the
To Bob and the rest of the TZ5A team:
Thanks for hearing my KX1 on 20 meters during the contest!
Good show!
73,
Chuck NI0C
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The Pelican cases work great. The KX1 will just fit in a 1060 case, but I
prefer the slightly larger, better padded 1120. Pelican cases aren't cheap,
but neither is the KX1. Pelican cases have protected my cameras on numerous
cross-country ski trips (I fall a lot) and on whitewater river
It's not very pretty, but a great way to slow down your bug is to clip an
old-fashioned spring-type clothespin to the thumbscrews of the weights. You
can wrap solder around the ears of the clothespin to add more weight and slow
those dits down to match your dahs!
73,
Chuck NI0C
Congratulations to N6VX for working 3Y0X with WA8KNE's KX1. I guess I'm not a
true QRp'er, as my KX1 remained in its Pelican case for the duration of the
Peter I expedition. Had enough trouble working them with 100/800 watts to try
for a QRP contact. I have completed WAC on 40m with my KX1,
Tony, N2TK/KP2 wrote:
Guess I have been lucky. For the past year or so I have been using a Daiwa 2
position coax switch between my K2 and TS-950SDX to the amp. While listening
on the 950 through the coax switch I listen to the K2 on the low bands using
my receive antennas. If I want to use the
Scott, K3YT, wrote: I think my K2 is an excellent rig and will not risk it by
hooking it up
to a coax switch with another rig.
Point well taken, Scott. Certainly the discussion here has raised my awareness
of the issue of switch isolation, and I'll do something different (other than
relying
Martin Gillen wrote: I'm just curious - did you have the 30m option already
installed, and was
it easy to unsolder it? If so, did you use solder braid or a plunge vacuum
desoldering tool? How did that go?
Although I purchased a 30m kit at the time I got the KX1 and KXAT1, I never did
get
Ron, AC7AC wrote:
To me, the biggest concern about the soldering needed to install the KXB3080
is accidentally touching heat-sensitive parts that will melt in an instant
if you bump them with a hot iron: pots and pot shafts, trimmer caps, relays
and the like. I use a 2 mm spade tip on my iron.
Operating time was strictly limited here due to thunderstorms and rumors of
thunderstorms (and worse). Managed 9 QSO's with fellow Elecrafters on 40m CW
with the KX1. I tried 80m with the new KXB3080 module-- didn't work any
Elecrafters, but did work two stations each in the WI and OK QSO
In my report on the EQP, I forgot to mention that Arn, K0ZK, was an especially
friendly op. to work. I also heard him patiently explaining EQP rules to a
couple of non Elecrafters who answered his CQ's. Nice fellow!
73,
Chuck NI0C
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Speaking of bail height, here's a suggestion for use of the generous
space beneath the K2 transceiver. My N3ZN ZN-9B paddles nestle
perfectly into the space.created by the standard bail. Very nice!
73,
Chuck NI0C
K2-10 s/n 5853; K3 s/n 1061
Barry,
I find myself experimenting frequently with the AGC threshold and slope
settings.
Don't forget that these menu items can be assigned to the PF or M keys
so they can be easily
accessed and changed. Since I don't use the K3 internal keyer (I use an
external microHam
CW keyer), I use
Ron, if you have an amplifier in line, check the amplifier relay contacts.
I had to clean the relay contacts in my AL-80B about once per year.
The symptoms were just as you described.
73,
Chuck Guenther NI0C
Ron, W3ZV wrote:
K3 started to exhibit intermittent loss
of gain after
XFIL's. That's probably because I rarely use anything wider than
350 or 400 Hz DSP selectivity.
This is a real worthwhile improvement for CW operators!
73,
Chuck Guenther NI0C
K2-10 s/n 5853
K3-100 s/n 1061
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SWH29;SWT49;RU;RU;RT0;IS ;
I'm open to suggestions for improvement.
73,
Chuck Guenther NI0C
K3 s/n 1061
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Post
.
73,
Chuck Guenther
K3 s/n 1061
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Please
The new APF continues to please this CW operator.
Like others, I find it works better in some situations than others.
But I would not have been able to copy and work RI1FJ
(Franz Josef Land) on 160m the morning of November 8
without this new tool.
A few suggestions for using it:
1. Make sure the
My new P3 arrived yesterday, and I like it a lot!
It's very easy and intuitive to operate. As someone who spent part of
his career
doing spectrum analysis (of sound and vibration), I don't know why I
waited so
long to acquire this fine accessory for my K3.
I still need to do the IF output
transmitting
and receiving antennas, as I can see the noise level drop off above and
below resonance.
73,
Chuck Guenther NI0C
K3 s/n 1061 P3 s/n 444
Dave, N4QS wrote:
Rich,
I basically agree with you about adding the KRX3 first, but it would be
interesting to see how the P3 works with only one RX
Many thanks to Bill, W4ZV, for providing the LVL CAL instructions
in his Nov. 11 reflector message. I did the calibration using an XG-2
both before and after doing the IF output mod in my older K3.
Before the mod, my transfer gain was -21 dB, which I think should
have been -18 dB because I have
function of a memory
M1-M4 so as to avoid the chance of getting the wrong one in the heat of a DX
pileup.
73,
Chuck Guenther NI0C
K2, K3, P3
Rich Dettinger, K7MW, wrote:
I think you can use PF1 or 2 to select the APF. This will still
require a hold, and an inadvertent tap will interfere
Pete,
I don't think this is curmudgeonly at all. I try to sign off with 73 on
internet forum
postings (such as on eHam), as well on e-mail lists like this one.
I figure if I can't say 73, meaning, of course best regards, then
perhaps I
shouldn't send it.Keeps me in check!
73,
Chuck
that would enhance this would be a way to display time
and date at least on the frozen P3 display. I take care of this manually
by putting callsign, date, and time information in the .jpg filename in
Windows My Pictures folder.
Is this something that is planned for the future?
73,
Chuck Guenther NI0C
I too believe the jury is still out concerning the long-term wear and tear
on the Elecraft encoders caused by the use of extra heavy knobs.
The original knobs spin just fine on my K3; besides I'm doing more
QSY's these days from the P3.
73,
Chuck Guenther NI0C
K2, K3
Don Wilhem, W3FPR, wrote
as the
APF feature of the K3.
73,
Chuck Guenther NI0C
K2, K3/P3
Gary, K9GS, wrote:
I primarily spend my time contesting, DX contests in particular, and
most of my time on 80 and 40M. 99% of the time I operate CW. So, in
particular, low band CW performance is important to me. ...
I'm
and offset the RIT by
20 Hz, then
I tweak the APF shift and/or the RIT manually to peak the received signal.
The purpose of the offset is to shift the signal frequency away from the
ringing
frequency. This works best for me at pitch settings near the low end of
the K3's
range.
73,
Chuck Guenther
control. Other pre-requisites for
success with APF
are using FINE tune (1 Hz frequency resolution) and also shifting the
signal frequency
(using RIT and APF shift) ) slightly off the ringing frequency.
73,
Chuck Guenther NI0C
K3 s/n 1061
Barry, N1EU wrote:
Forget it - full stop!
I just ran
panadaptor
frequency displays) for
indicating the frequency response characteristics of high-Q antennas.
73,
Chuck Guenther NI0C
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Band this season as
captured on my P3. The March issue will be available to subscribers
during late February.
73,
Chuck Guenther NI0C
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Thanks, Jim. In addition to a wide span (I use 128 KHz), a low value of
scale (30-40 dB) and the maximum value of averaging time also
improve the display of the antenna characteristics.
73,
Chuck Guenther NI0C
On 2/2/2011 3:10 PM, Jim Sheldon wrote:
!-- body{font-family:'Arial';font-size
,
Chuck Guenther NI0C
K2-10, K3, P3
N6FB wrote:
It is tough to get old and find most of your electronics know-how is out
of date- so much so that creating a macro from scratch seems beyond my ken.
APF is a very useful function, and I use it along with RIT as the fine
tuning mechanism. How
to be made?
73,
Chuck Guenther NI0C
K2-10 s/n 5853
K3-100 s/n 1061
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Elecrafters who have participated in the ECN's (nets) and EQP's
(Elecraft QSO Parties)
will recall Pete Hoover, W6ZH as a frequent participant.
I just learned from W3UR's Daily DX service that Pete passed away on
Feb. 4.
I didn't know Pete very well, but we did have some correspondence, and
Eric,
I've used Pelican cases to protect my cameras while X-C skiing,
have taken a number of falls, with no damage to the cameras (or me!).
You can check the archives on appropriate sizes for the KX1. I never
took mine skiing , but I did find an appropriate size for it that would
fit into
a
Did it ever occur to you that the folks who kept the bands hopping for
48 hours might enjoy a rest? Maybe spend some time with their families,
watch the Winter Olympics on TV, go for a walk, etc.?
Even though I was only a casual participant in the contest on a single band,
I enjoyed the respite.
Darn... my secret got out! :)
73 de Chuck NI0C
K2, K3
CX7TT wrote:
I worked many guys who were S3 abv and below the run freq while the
zero beat guys to my xmit freq were S9 plus.
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Ken Kopp wrote:
I've 'stewed' about the issue most
of the night.
Me too, Ken. Don helped me a lot when I was assembling my KX1 and K2.
The impatient K2 builder says he doesn't care at all about feelings; yet he
also claims
to have an EET degree. I taught for many years in a community
I'd like to add my applause and thanks to Elecraft for this latest
firmware upgrade.
In addition to the new firmware, I finally got around to installing my
700 Hz CW roofing filter.
The combination of extra wide filtering and higher AGC thresholds is
great for combing
through the pileups with
No need to stop at 440; I've been using 300-330 on my K3 for a few years
now. I'm stuck at 400 on my K2.
73,
Chuck Guenther NI0C
KX1; K2; K3
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myself with
it before adding the KXB3080 module.
73,
Chuck Guenther NI0C
KX1 s/n 2512, K2 s/n 5853, K3 s/n 1061
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holder. This preserved my sanity during these
rather awkward
construction steps. Just make sure the tape does not cross the molded
ridges
at the bottom of the holder.
73,
Chuck Guenther NI0C
Barry, K8QI, wrote:
I'm presently building KX1 # 2520 currently in phase 2.Appreciate the
heads up
discovered a better way to attach this filter? I'm thinking
of using a very small quantity of RTV sealant, judiciously applied
around the edges of the filter with a toothpick. Any thoughts?
Thanks 73,
Chuck Guenther NI0C
KX1 s/n 2512
did. The results look very good.
73,
Chuck Guenther NI0C
KX1 s/n 2512
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out.
(It didn't).
I also worried about damaging the nylon screw during soldering, so I
used a metal one
just during soldering. (My kit contained two nylon screws, and I used a
magnet to separate
the metal ones).
73,
Chuck Guenther
KX1 s/n 2512
Barry, K8QI, wrote:
Figure 24 shows
Chuck, it doesn't say both washers in my manual. Here's the exact quote:
*The split washer under the standoff is important to reach the proper
height
so Q6 will come in contact with the cover.*
The lockwasher under the board has nothing to do with the height of Q6's
collector.
73,
Chuck
I wrote a review of the N6BT Bravo 7K antenna for eHam about a year ago.
After using it for a year on all bands (40 thru 10 meters), I remain very
pleased with it. Band changing can be accomplished in just a few minutes.
It seems to perform as well as my Force 12 Sigma 40XK, and is easier to
work
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