If CM-500 is connected to rear panel mic jack it works fine, however
if it is connected to front panel mic jack via conversion connector
I have a very low mic lebel with max mic level setting.
If CM-500 is connected to KX3 it works fine.
CM-500 mic plug to 8p plug connection in conversion
Connect a 5.6K Ohm resistor between pin 6 and the ring of the CM-500
and a 1 uF capacitor between the tip of the CM-500 and pin 1 or
simply *disconnect* pin 6 and use bias for the K3 front mic jack.
Tip and ring are connected together in the CM-500.
There is a 10 uF capacitor from pin 6 to
Joe
Thanks for suggestions. I will try that.
73 de aki
ja1nlx
(2014/08/31 22:38), Joe Subich, W4TV wrote:
Connect a 5.6K Ohm resistor between pin 6 and the ring of the CM-500
and a 1 uF capacitor between the tip of the CM-500 and pin 1 or
simply *disconnect* pin 6 and use bias for the K3
Hi Rich,
don't know the external one (XV144) myself so cannot comment. The
internal one (K144XV) has one drawback: no adequate cooling! Cooling is
done only passively using the left side of the enclosure. As JT65 on EME
is a key-down mode you will see that power drops soon and dramatically,
The mechanical stabilizers I've been making for bugs have been extremely
well received and I thank my customers for their kind words reviews.
The orders have finally slowed down a bit and since finally obtaining a
decent bench-top mill/drill I've been able to get a few ahead and now
have
When holding in the NR button to adjust noise reduction, I get
F1-1,2,3,4 then F2-1,2,3,4 etc for F3 and F4. Going further this is
repeated for NRmF5, F6, F7 and F8.
Can someone direct me to where in the K3 manual it explains what these
settings mean and/or when to use NR or NRm?
Thanks.
You'll find it on page 25.
Bob NW8L
On Sun, 31 Aug 2014, Gene wrote:
Date: Sun, 31 Aug 2014 16:57:11 -0400
From: Gene ea...@roadrunner.com
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Noise reduction question
When holding in the NR button to adjust noise reduction, I get F1-1,2,3,4
On 8/31/2014 3:57 PM, Gene wrote: When holding in the NR button to
adjust noise reduction, I get
F1-1,2,3,4 then F2-1,2,3,4 etc for F3 and F4. Going further this is
repeated for NRmF5, F6, F7 and F8.
Can someone direct me to where in the K3 manual it explains what these
settings mean and/or
I'm not sure if it is just something on my end or what, but when I try
to click on any link with in the http://www.elecraft.com/K3/K3FAQ.htm
page I get thrown into a page that shown nothing about what I clicked
on, such as the noise reduction link which points to:
http://www.elecraft.com/#NR
Looks like this HTML tag may be breaking the page anchor links. I dropped a
note to the webmaster.
base href=/ view-source:http://www.elecraft.com/ /
Regards,
David McAnally
WD5M
K3 SN 6493
On Sun, Aug 31, 2014 at 4:48 PM, Sam Morgan k5oai@gmail.com wrote:
I'm not sure if it is just
Excellent comments, Oliver. I've not done EME (too many tall trees in
the way), but I do own an XV144, and recently set it up with a vintage
Mirage 2W in to 150W out brick amp of pre-MFJ vintage. Some thoughts
based on my experience.
The internal transverter is rated for about 10W, the
On Sat,11/20/2010 12:48 PM, John, KI6WX wrote:
The ARRL is aware of this issue. This problem was discussed in my 1988
articles on phase noise in QST (March April issues). The article notes
that a high phase noise transmitter degrades the performance of a low phase
noise receiver to that of
This one works for me:
http://www.elecraft.com/K3/K3FAQ.htm#NR
73,
Matt VK2RQ
On 1 Sep 2014, at 7:48 am, Sam Morgan k5oai@gmail.com wrote:
I'm not sure if it is just something on my end or what, but when I try to
click on any link with in the http://www.elecraft.com/K3/K3FAQ.htm page I
Yes, works if you scroll down, Matt -- which I had
not thought to do. But the links at the top of
that page all seem to take me to the Elecraft home
page. I guess that's the broken part.
Phil W7OX
On 8/31/14, 3:54 PM, Matt VK2RQ wrote:
This one works for me:
No need to scroll down with the link I provided -- the browser will place the
corresponding anchor at the top of the window (unless the anchor is too close
to the bottom of the page).
The links at the top of the FAQ page are indeed all broken, and need to include
the file name of the FAQ page
Hello Rich,
You may also wish to consider transverters from Down East Microwave. They are
good at power and frequency stability. Do some search in this elecraft email
listing, you will find some discussion in the past about XV144.
73
Johnny VR2XMC
寄件人︰
Jim,
Thanks for your analysis of transmitted phase and keying noise of various
transceivers. I'd like to provide a couple of technical details, and to give
credit where it is due.
To achieve the excellent results shown in your paper for the K3, we used a
combination of four techniques:
1. A
Typo:
Change ...or in the case of PLL designs, VCOs with a much higher C/L ratio
than the K3...
to ...or in the case of PLL designs, VCOs with a much *lower* C/L ratio than
the K3.
Wayne
N6KR
On Aug 31, 2014, at 7:17 PM, Wayne Burdick n...@elecraft.com wrote:
Jim,
Thanks for your
This is why that on more than one occasion over the years I've said (only
semi-facetiously) that the two-tone testing of the receiver portion of a
transceiver should be performed using two other like transceiver transmitters,
running rated output power, as the two test tones. When our
On Sun,8/31/2014 7:17 PM, Wayne Burdick wrote:
I'd like to provide a couple of technical details, and to give credit where it
is due.
Thanks Wayne. I was aware of some of this, but didn't want to show any
more of your cards than you chose. Your comments will make a fine sidebar.
73, Jim
On Sun,8/31/2014 8:17 PM, Wes (N7WS) wrote:
This is why that on more than one occasion over the years I've said
(only semi-facetiously) that the two-tone testing of the receiver
portion of a transceiver should be performed using two other like
transceiver transmitters, running rated output
A couple of notes on using the XV144 for EME:
1. The crystal oven option helps stability. Allow 30-minute warmup.
2. Max power for JT65 is 10 watts, but cooling is inadequate. I use a small
muffin fan attached to the desktop that blows air under the XV144 and works
perfectly. The extra
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