NZ8J wrote:
All resistance checks were as they should have been to this point
Applied power for the first time:
heard the relays engage
backlight came on
Display is blank, nothing whatsoever in the display
Some builders have reported
I soldered a 10K resistor across the RIT pot and magically cut the range in
half. It was easier than dealing with C7 on the rf board. I find RIT=Off a
satisfactory "center detent".
Per your request, I'll spare you my comments on the gain control as the K1
doesn't need one.
Eric
KE6US
-Origi
David,
Go with 80 kHz. I went with 150 and I think I am going to change it.
150 Khz makes tuning just a bit skittish. I can live with it; but when
I have some time, I think I am going to change it.
73 de Larry W2LJ
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On Jun 29, 2005, at 7:54 PM, David Dietrich wrote:
It is starting to become decision time for me, and I am in a quandary.
Do I choose 80 or 150 KHz
as my tuning range?
David,
I can't speak for others, but I can explain the reasoning I used when I
wrote the manual. First, 99% of CW activ
It's only a matter of what you like, David. I built it for 150K bandspread,
and thought the tuning was way too fast for me. Most of my operating is near
the QRP and FISTS frequencies and in the first 10 khz of 40, 20 and 15. On
30 I never go below 10.100 and I never go above 10.120. So I give up no
Good Evening All K1-4 Owners,
Construction of the K1 itself starts tomorrow evening after work! When I got
my K1, I opted for
the 4-band radio as primary, and I purchased the two-band module extra. For my
four-band I chose:
40-30-20-15. I have 80 & 17 for the two band module.
It is starting
I'm finally going to open the box I've had for 2 years and build a K1 so I'll
have a rig for the Australian outback next month! Before I start, a couple of
questions:
1. Has anyone come up with a good RF gain control, aka AGC threshold control?
Please, no lectures about how the K1 doesn't need
Well, everything went well until it was time to apply power for the first
time :)
All resistance checks were as they should have been to this point
Applied power for the first time:
heard the relays engage
backlight came on
Display
In a message dated 29/06/05 21:50:12 GMT Daylight Time, [EMAIL PROTECTED]
writes:
Actually, Mike, I think I've seen mention of Datong in
recent years. Not totally dead yet.
Dr. D. A. Tong was a very clever designer, but he kept
his designs very close to his chest. To the best of
my knowle
I found a 16.9xx crystal on an old computer board and swapped it out.
Now the birdie has moved somewhere else.
My other choice was 16.670 but I figured that would wind up in the 6
meter band...
Thanks everyone for the help.
Sam N4MAP
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Elecraft maili
In a message dated 29/06/05 23:50:28 GMT Daylight Time, [EMAIL PROTECTED]
writes:
Check the base impedance at hf. Some antennas have a vhf matching circuit
in the base
that will look like nearly a short at hf. If it doesn't show an open
circuit at hf,
Reply:
Check the base impedance at hf. Some antennas have a vhf matching circuit
in the base
that will look like nearly a short at hf. If it doesn't show an open
circuit at hf,
it will probably be very difficult to match at hf.
Good luck and 73
Bob N6WG
-Original Message-
From: [EMAIL PROTECTED
CB Channel 19 is 27.185 MHz and if the KTAT1 tuner has sufficient matching
capability you could probably easily hit 12 or 10 meters. it might even
give 15 a shot.
The SGC tuner works quite well on 102" whip and the range is 80 up to 6
meters but it has an extremely wide matching range. I am
Since the Marine band is 150 MHz VHF range, its matched antenna would not
make a good HF antenna. However, with a tuner it might tune up on some ham
bands with some undefined pattern of takeoff depending on where the loading
coils for VHF are located on the Marine mast.
Stuart
K5KVH
__
If you have a KX1 with the KTAT1-antenna tuner ,, does anyone know if and how
good an antenna from Marine VHF transceiver would be, the kind that sits on top
of a cabin roof, -- or a CB truck antenna it would be the kind in those
trucks parts catalogs. Both of these types come with strong supp
I was given several NOS parts today of which I was able to reference
them to NTE ## all except
one, an "ADX-1788" three pins in a low profile case. a similar part #
"ADX-1695" crosses to a
"30A power rectifier" in a TO220 type case. Any ideas on the "ADX-1788"
? I beleive it is also
a rectifier
Actually, Mike, I think I've seen mention of Datong in
recent years. Not totally dead yet.
Dr. D. A. Tong was a very clever designer, but he kept
his designs very close to his chest. To the best of
my knowledge, the schematics for the FL3 or others
were never published. I too have an FL3 and wou
[EMAIL PROTECTED] wrote:
Are you using a counterpoise with that end fed? If you aren't try one. If
you already are try raising it off the ground a bit.
Yes! I have 13 pieces of "counterpoise". Their lengths vary between
8meters and 30 meters. They are buried below the grass to allow
law
Rolf,
Are you using a counterpoise with that end fed? If you aren't try one. If
you already are try raising it off the ground a bit.
Tom
WB2QDG
K2 1103
-- Original message --
From: "Rolf Moberg, OH6KXL" <[EMAIL PROTECTED]>
> After installing end fed "long wi
Datong (www.datong.co.uk) are now in the surveillance business.
Unfortunately they never released schematics for their amateur products
and often ground off the part numbers from the chips.
Mike wrote:
Hello Everyone!
Just wondering, if, amongst all the expertise & stored info amongst
Elecra
After installing end fed "long wire" 26.5m antenna few meters higher
situation become even worse in 15m and 12m.
15m: K2 is giving _only_ 2 or 3 watts output!
12m: when pressing TUNE, K2 will switch immediately to receive mode.
Is this a symptom of a) a big impedance or b) "RF in the shack"-pro
Hi Jim,
Good question. While I have been troubleshooting the KPA I have left the
KAT100 out of circuit - I don't need it while transmitting into a dummy
load. The AT-200 has a straight through mode for power measurement that I
am using. I only borrowed the AT-200 for power meter as the KAT100 is
Hello Everyone!
Just wondering, if, amongst all the expertise & stored info amongst
Elecraft list members, anybody has a schematic, or any other info on the
Datong FL3 Audio Filter. These were made in England back in the 1980s &
I think that Datong is now out of business.
Plan on using it wit
Some good thoughts. Morse Code is MORE than just sequences of 'dots' and
'dashes'
(dits and dahs if you will!)
What is also VERY important is 'timing'. if I send 'as' 'kin' 'g' instead
of 'asking'
or a word like 'yes' 'terd' 'ay' instead of 'yesterday' it has a great
chance to
become mis
On Jun 29, 2005, at 5:13 AM, Sam Smith wrote:
Thanks, Lyle,
Yes, I have K2 #1013 - lucky 13. I'm sure I bought the KIO2 as soon as
it came out. I'll check the crystal fequency tonight.
The KIO2 uses a crystal frequency of 16.289 MHz. It has NOT been
changed since the unit's inception. The K
Published on The O'Reilly Network (http://www.oreillynet.com/)
http://www.oreillynet.com/pub/wlg/7016
Back to the Future - Morse Code and Cellular Phones
by Brian McConnell
Jun. 28, 2005
I've spent most of the past five or so years thinking about handheld
devices, their limitations and how to
At 11:18 PM 6/27/2005, Kevin Rock wrote...
>If I have done this correctly you should be able to run a QRP rig key down for
>approximately 14 minutes with a fully charged 5K Farad ultracapacitor.
Discharge curves vary significantly between caps and batteries. Caps discharge
exponentially, and the
Lee,
Pull out the KNB2 scheematic and follow along to identify the components
that may be at fault on you KNB2 board - there are only a few.
The signal enters on pin 1 and goes to the junction of R8 and R9 (check
these for soldering and value) - then it hits the parallel tuned circuit
consisting
Good Morning Everyone
My KNB2 has quit working...or...might be working all to well. On FD, the
signals on my K2 disappeared and the RX died. I took the rig home after FD (I
did not get to make one Q with the K2) and started looking at it with the email
help of W3FPR. Well, come to find
Hi Chuck.
I had changed the connector and redid the joints and put fresh "and
voltage checked" alkaline batteries. I was at 2.2 watts. r1.1 at 14060 as
planned and yes you heard the call right it is KB7DPC but I heard nothing,
that space on the dial was completely quiet. But a little later t
I built the KAT100-1 autotuner for my K2/100 and it tested and worked great. I
am running it and the K2/100 off a marine battery with a 1.5amp charger and I
had made a Y on the K2/100 power cable to power the tuner. On a few occasions
I carried both to a different location the tuner began to a
My K2 (#2552, built and upgraded by WA2DKG) was the hero of our club's Field Day
this year. I brought it along just to let some other folks have a look at it and
play with it a bit. As it turned out, our main rig (an FT-1000MP MK5) and a
backup QRP rig both failed almost instantly when they were fi
Since I have the K2/100 I have no need for the old top cover. This is
complete with KIO2 ($89 kit price), KAT2 ($159 kit price), KBT2 ($67 price),
with speaker and of course the cover itself. All ready to plug in and
operate. This is a $300+ value (not counting assembly time) for $225. Save
time a
Thanks, Lyle,
Yes, I have K2 #1013 - lucky 13. I'm sure I bought the KIO2 as soon as
it came out. I'll check the crystal fequency tonight.
Isn't there also a KIO2 in my remote PA? That one is probably the newer crystal?
Sam N4MAP
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[EMAIL PROTECTED] wrote:
When you release the PTT switch, do you hear audio instantly or is
there a small delay. As a comparison, there is virtually no delay
when I use my ICOM radio.
On S/N 1641 there is no perceptable delay whatsoever. Perhaps you might
want to check stuff in the AGC secti
I've been discussing the following issue off line and I wanted to know if I am
imagining a problem. I have set the SSB mode to PTT and have adjusted the T/R
delay to be 0...which means I should have virtually no delay from when I
release the PTT switch until the time I hear audio. Well, I have
Pll is Ok.
Trans and Rec Ok.
Good Power.
On Frequency bye All Bands.
Using a Kenwood Hand Mic.
Worked several station june 28 on
17-20-40
with 10 to 15 watts SSB
Thanks for Help
kc4eyf
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