Hi:
No doubt this is old hat to some 5000 of you out there, but I have just
made it to the end of Chapter 7, so consider this one built.
The first thing that ever popped up on my display was INFO 80, and there
were times when I wondered if I might turn 80 before reaching page 80.
But I did it, and
[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
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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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
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
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
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
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
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
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 with
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
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
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
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 wire
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
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
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
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,
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
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
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
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
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
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
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
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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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
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