On Monday 17 July 2006 at 0118 Jim (AL7FS) wrote ...
What is the advantage of the G Rev over the D Rev? Asked another way, what
is the difference between the D and G? There had to be a reason for the
redesign.
I have D Rev and have not yet installed it. I would like to know if there
is any
Hi,
Just a quick question..
I've just installed the parts in my basic K2 to externally key an amp. I've
just tried to key my old FL-2100B with this, but have found that as soon as
I plug the cable in, the amp keys when the radio is still in RX ??
Is there a menu setting I need to change or have
I misread 80M as a 7MHz (40M Band) Frequency and then set the VFO for
4000kHz. Silly-me! Everything is well within specification and
construction is progressing.
73, Mark
G3XYS
Subject: [Elecraft] K2 VCO Test and no VCO ref voltage
To: elecraft@mailman.qth.net
Message-ID: [EMAIL PROTECTED]
Hi guys,
I have built the Elecraft Noise Generator. The specs say that the noise
output is 35 dB.
Am I correct in assuming that 0 dB corresponds to 1 microvolt, so that
an output of 35 dB corresponds roughly to 56 microvolts?
If this is so, it would explain why I can not see the output on
Ron D'Eau Claire wrote:
4) The Bargraph power display is in peak power, so it'll show flickers at
the PEP peaks instead of the average power like most inexpensive external
meters. That cause confusion sometimes when the opr notices that his
external meter is wiggling around at 3 or 4 watts
Hi Kevin,
If your calculations are right ( and I have not checked them) then 56 uV would
be very difficult, if not impossible to see on the average oscilloscope.
On most oscilloscopes the maximum Y axis sensitivity is 1 to 5mV/cm, so you
are
trying to measure something approx 100 times
FWIW...
I purchased a reasonably priced Tripp Lite U209-000-R
Serial Adapter - mini USB Type A - DB-9 - male (U$20)
which controls my K2 fine using N1MM.
The only caveat I have with this is that it does NOT
key the rig (using the simple 2N/1KOhm resistor
interface) on CW. From what I hear
Sam,
There is no one single answer to your question because it depends on the
particular meter's response and will differ from one meter to another.
The K2 bargraph peaks will usually indicate the peak power more readily than
a 'peak reading' analog power meter. The reason is that the bargraph
Lynn...
Congrats on the Extra Class ticket!
I still have fond memories of travelling into NYC to
take the exam with a bunch of guys from our Explorer
Post (former W2NVB). The line of keys and headsets was
pretty impressive to this kid.
Of course, after the exam was over, we all headed down
to
I tried to use my K2/KIO2/XV combination with Writelog for last
weekend's CQWW VHF competition and failed.
I hooked up the K2 to a serial port and set it up on Writelog. While
Writelog recognized the rig and could set the frequency, it went
crazy while polling the rig for frequency. It
Hey, Congratulations Lynn. That is quite an accomplishment.
I had it easier than those who went before me but a bit harder than you
did. I had to pass 20 wpm but it was a simulated QSO and I only needed
a minute or 2 of solid copy or 70% on the written questions. I didn't
have to go to the FCC
For Sale: Assembled paddles for KX-1, work fine,
picture available. $ 45 plus freight.
[EMAIL PROTECTED]
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I have a spare aluminum hard carrying case which makes a great carrier for
small rigs such as the KX1, K1, and even K2 (just fits). The inside
measures 11 inches wide, 8 inches deep, and a little more than 4 inches
high. The inside is padded with thick foam on sides and bottom, and the
inside
Raj,
That certainly sounds like a Writelog problem. If the K2 works properly
with another program, then there is nothing wrong with the K2 interface or
your connections - that leaves only the driving software and a small chance
that the sequence of commands is creating an unexpected path
Hi Julius,
I couldn't get the COM output of the USB adapter
to key my rig using N1MM. Anyway, you are
better off with WK2 for excellent CW keying.
de Joe, aa4nn
- Original Message -
From: J F [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Monday, July 17, 2006 8:51 AM
Subject:
Congrats to the new Extra!
I wish I'd done my 20WPM Extra back in the early 80s when I had all
that momentum built up from getting my Advanced. I really wish I'd
done it now that I hear you can get an FCC 2nd class radiotelegraph
license and get credit for the code part if you're a 20WPM
just acquired a used KX1 and trying to figure out the wiring of the
stereo key plug both for a straight key and for a paddle. I only have the
PDF version of the manual, where do I find it? or is there a standard
method of doing it?
In Pdn, the tip is dit, ring is dah, body is ground.
Hi Stewart and Kevin
Calculation for white noise are a bit tricky - here goes:
The power output is specified as Excess Noise Ratio.
This is how much more power the N-gen produces compared to
a 50 ohm resistor at a temperature of 290 Kelvin.
How much power that is depends on bandwidth.
If you
At 06:28 AM 7/17/2006, Rajiv Dewan, N2RD wrote:
I tried to use my K2/KIO2/XV combination with Writelog for last
weekend's CQWW VHF competition and failed.
hi - perhaps one of these ideas will be helpful - I have used the K2+XV50 with
writelog with no problem, so I would not think it is likely
The N-gen produces noise power that is approximately 35 dB greater than that
produced by a 50 ohm resistor. At room temperature a 50 ohm resistor
produces a noise power of -174dBm per Hertz of bandwidth. So in a typical
CW bandwidth of 500 Hz, the N-gen noise power output is
approximately
FWIW: I heard nothing on 20. Unfortunately, I only had about 15 mins
and couldn't wait for a QSP opportunity, but zip on or near 14050.
There's always next week.
Fred K6DGW
Auburn CA CM98lw
Kevin Rock wrote:
Good Evening Folks,
The bands were a bit stingy this evening but that is how it
I'm going 100% QRP so I have for sale my KPA100 from my K2.
I bought it new last year and built it myself. I'm an electrical engineer
with plenty building experience, and this was my second built KPA100.
Quality is superb - used a temp controlled iron, fine tip, minimal solder,
etc. I'm proud of
First off, congratulations Lynn!
Alexandra Carter wrote:
I hear you can get an FCC 2nd class radiotelegraph license
and get credit for the code part if you're a 20WPM Extra.
Hmmm ... that might be backwards? I haven't kept up with the rules, but
due to a scheduling error on my part, my Mom
Symptom: Freq polling shows wrong frequency and cycles through the bands
Rig: K2 with the KIO2 and 4 transvertes XV50 thru XV432
Serial port: 4 port PCI card RocketPort
Following Hank's suggetion, I tried the single COM1 that I have on the
motherboard. On this the K2 and Writelog work.
Very odd indeed. Curious.
You gotta sniffer it to know what's busted. 'puter, interface, software
(Writelog) or firmware (K2).
May not be worth the effort.
Dan / WG4S / K2 #2456
snip
Essentially K2 - Writelog - PCI Serial Port are a no-go combination. Very
odd.
/snip
New to the list and I will be building the K2/100 with KSB2, K160RX, and
K60XV soon. I recently saw the Rework Eliminator Plug Play kit and I'm
wondering if it would be a good idea to incorporate it into my K2. Since
I'm adding most of the accessories I want during the building process I'm
Raj,
It could be a timing problem created by the way your operating system
handles the PCI card ports as opposed to its handling of the native com
port. If you are using WinXP, something like that is entirely possible.
Nothing in your KIO2 is broken. The K2 operates with no handshaking, so
I seem to remember not being able to see much more than a hint that a
signal was there on my scope, but on a spectrum analyzer, which is
essentially a receiver, I was able to see it just fine - adjust it
just right, and the output looked like a fuzzy little caterpillar! 73
de Alex NS6Y.
Bill,
Since you will have the headers required for most of the options, you could
get the boards and the on-board parts. The headers that you would not have
are for the KAF2/KDSP2 and the KNB2, and you could order those headers (and
the KNB2 standoff) separately. You will need a 2.7k resistor
Hi Bill,
Welcome to the list! I added the Rework Eliminator boards to my K2, and
I'm happy I did. I would recommend it to you for two reasons. First, you
will spare yourself from reworking your K2 when you add the accessories.
With the Rework Eliminators, to install an accessory board
We know that the K2 works with Writelog in all sorts of serial
interfaces, including USB serial adapters. I would wonder if the PCI
serial port is somehow expecting handshake signals which the K2
doesn't have (and presumably you do not have connected). If the port
is looking for an input
Thanks to all who answered my K2 CW questions, both on
and offline.
72 de N8PVZ
---bernie
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Hi All,
Thanks for all the responses to this - much appreciated.
I'm afraid it was a simple case of me not reading the instructions on the
keying circuit.
The FL-2100B pulls 20v on its keying input, whilst the circuit for the K2 is
only designed for 5-12v !! This is clearly written on the
This Wednesday evening (Thursday morning UTC time) will be the NAQCC
Sprint for July.
This month, the Sprint will be held on 80, 40 and 20 meters. A special
certificate will be given to the operator with the highest score who has
made at least 5 QSOs on each band.
The Sprint will run from
34 matches
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