Hi Vic and all.
I have kept my K2 (1188) up to date with all the A/B mods, however at times
I see references such as the one below about T7 where a toroid may have
been changed from the original windings to a revised spec. Are these
documented anywhere, which toroids are now different and
Hi all,
I have a new set of mobile antennas, pro am series with magnet mount. Most
works just fine but I have one thing I don't understand. I have a K1 and a
K2 and while the K2 (without tuner enabled) shows an SWR of 2:1 on the 30m
antenna the K1 immediately reduces power to 0.1w and shows SWR
You know, Gerhard I have had the same problem at times.
Paul Gates
Elecraft K1 #231
XG1
[EMAIL PROTECTED]
- Original Message -
From: Gerhard Schwanz [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Monday, May 16, 2005 5:07 AM
Subject: [Elecraft] Antenna problem / phenomenon
Hi
Hello elecrafters,
my wifeŽs cell phone calls cq cq cq when a call comes in,
mine calls qrz?
I composed the ringtones myself on the computer and transferred them
to the phones using a programming-cable .
Too bad you cannot have different a ringtone for every entry in
the phones phonebook,
Gang,
My K2 s/n 4896 is alive and kicking! The assembly went flawless and
the alignment was a piece of cake (yes, indeed), MUCH easier than
aligning the K1! I finished the rig as a evening-project while I´m
at work in Sweden (and QRV as SM/LA2MOA), and the first CW QSO was
with LA9M/P on EU056 on
Pictures, please?
Dan / WG4S / K2 #2456
Just curious, but I don't have the buzz (I guess - I'm never more than
125KHz above the lower band edge.)
snip
An SMT inductor was chosen with a value of 18uh and SRF of 27Mhz. Its foot
print is a 1210 size
(120mils x 100 mils) and fit perfectly between
The easiest to get and a very excellent solvent for rosin on PCB is
Everclear (ethanol 95%) which is available at any liquor store. A pint will
last a long time (unless you quench your thirst with it). It has the
advantage of dissolving old rosin as well as that from newly soldered
joints.
The answer to the problem is an old one in that it is difficult to get an HF
antenna to work with a mag mount due to the low capacitance between the
magnetic base and the vehicle body.
VHF/UHF antenna mounted on a mag mount is OK as the effective low
capacitance does not present a problem.
Deni,
T7 is the only transformer that will make any difference. If it is wound
with a 13:3 turns ratio it can be rewound with a 20:5 ratio for a better
impedance match to the IF filter.
The number of turns on bifilar wound T3 has been reduced in later K2s, but I
have not noticed any difference
He that uses many words for explaining any subject, doth, like the
cuttlefish, hide himself for the most part in his own ink.
-John Ray, naturalist (1627-1705)
--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.308 / Virus Database: 266.11.10 - Release Date:
Have you tuned the length of the 30m antenna? Out of the box it might
be wrong.
You also need a ground strap, if you don't want a permanent
installation. I hopr your car is metal, not fiberglass. You may need
some straps to hook other parts of the car together, such as roof to
body, or hood
Deni F5VJC wrote:
I have kept my K2 (1188) up to date with all the A/B mods, however at times
I see references such the one below about T7 where a toroid may have been
changed from the original windings to a revised spec. Are these documented
anywhere, which toroids are now different and why?
I think electronics people and bullet casters will
have to have a special permit or license to possess
lead before long! (If the environmental whackos have
their way! The anti-gun folks will jump on this
bandwagon too, be assured!)
We have tons of lead we'd love to dump in your back
yard in
Hi John,
That was more of a general statement and not meant to be specific :-) . It did
not refer to any specific developments. No new radios in the near term for sure.
73, Eric WA6HHQ
Elecraft
---
John [K7SVV] wrote:
The paragraph that caught my eye said:
The company hopes to continue
Mike,
I don't have an answer for you, but wanted to say I *think* I am
experiencing the same thing. I have an old Bird model 43 watt meter
hooked up - not at all the thing to be testing phone output with - and
see one unexpected thing. SSB sounds fine on my test rcvr on 40m and
80m, 100 W into
If I remember correctly, as you increase the power level on a K2 with 100W
option installed, a relay kicks in at roughly 12 watts and the QRO section is
activated. Does the fan ever operate at QRP levels or is it entirely disabled
until you go beyond that threshold?
--Andrew
You have to be very careful what the media writes. Just ask the editors at
Newsweek. ;-)
Cheers,
Rod
K5BGB
Eric Swartz - WA6HHQ, Elecraft [EMAIL PROTECTED] wrote:
Hi John,
That was more of a general statement and not meant to be specific :-) . It did
not refer to any specific
This has to be market speak for we are going to announce something
really, really big at Dayton ;)
Probably something that will put Hallicrafters, Hammerlund, and Heathkit
all to shame!
Kevin. KD5ONS
On Mon, 16 May 2005 08:47:43 -0700, Eric Swartz - WA6HHQ, Elecraft
[EMAIL PROTECTED]
Allen KA5N wrote:
Most of the time, except for looks, rosin from good solders does no harm.
You can do more harm than good if your cleaning isn't done properly.
---
Allen makes an good point and he identifies a misconception that comes up
regularly - that rosin harms the board over
-Original Message-
I have kept my K2 (1188) up to date with all the A/B mods, however at times
I see references such as the one below about T7 where a toroid may have
been changed from the original windings to a revised spec. Are these
documented anywhere, which toroids are now different
AVA
From Berry
But the question is, will Berry bash the great and wonderful Bozo ???
Bozo, a grad of the Mike Jackson Daycare School...
Keep the gloves on boys and girl...
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
Just a short note for all you Elecrafters who are not on other QRP
lists--- it's not too late to get in on the fun at the Holiday Inn -
Fairborn. It's the 10th anniversary of our popular FDIM event. Rather
than take up space here, go to: http://www.eham.net/articles/10977 for
a recent post.
Tony,
To save you and others some work, Frank Witt did an extensive measurement
series on many tuners; and published it in QST and I think, QEX magazines
with additional studies. If you are an ARRL member, you can likely find the
info from the pieces on the ARRL web site. It may be in the open
I would like some advice on the correct Ferrite beads to use in the P/S line
to minimize noise from a switching P/S. Though slightly off topic, with the
exception you must get power to the Elecraft rig somehow and quite often it
is a switching power supply due to their small size this is going to
I just gave up on the whole thing, bought a car battery and a $20 trickle
charger. Two (both sides) 30A fuse holders and it even works after the power
goes out. A bit heavy, but a great addition to the bench! Pretty clean
powerg!
Dan / WG4S / K2 #2456
snip
I would like some advice on the correct
A Word of caution Charging Car Batteries give off HYDROGEN GAS don't
charge them indoors in a closed room
Dan Barker wrote:
I just gave up on the whole thing, bought a car battery and a $20 trickle
charger. Two (both sides) 30A fuse holders and it even works after the power
goes out. A bit
Hey,
Where is the Elecraft Party at Dayton?
Lee - K0WA
Common sense is in short supply - get some and use it.
If you can't find any common sense, ask somebody who owns some.
- Lee Buller
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Hello Rich
Several suggestions.
First, for the ac cord, use a large enough toroid so that you can get a
number
of turns through it. Try to get them to lay smoothly next to each other,
rather than bunching and crossing over each other. You can remove the ac
plug for the winding, then install a
My solution is similar. I use a sealed 12 AH gelcell 'jumpstart' battery with a
built in charger (paid $50 at AutoZone, but seen for as low as $40).
Here's a link to the Mity Mite:
http://www.batterychargers.com/details.cfm?prodid=PS%2D120Acatid=13
I leave it plugged into the outlet all of the
In a message dated 16/05/05 23:08:10 GMT Daylight Time, [EMAIL PROTECTED]
writes:
First, for the ac cord, use a large enough toroid so that you can get a
number
of turns through it. Try to get them to lay smoothly next to each other,
rather than bunching and crossing over each other. You
Ok, gang, please ignore my previous post and rack it up to simple
paranoia. I finished my 100 W stage Saturday, tried to make a few
QSOs Sunday and failed during the abysmal band condx. I felt
fairly sure I must've have messed up something while installing the
amp. *BUT* today after work I had
I posted this last Friday when it was fresh but it got rejected due to size
and I just got the bounce message today. Here it is again for those who
care:
I spend a lot of time tapping out text on my cell phone using T9 or
multitap input methods (the latter being where you press 2 once to get A,
I noticed a severe hum (60cycle) hum in the K2 after testing a Heath hw101
. it appeared that i had damaged the front end of the K2 ,and after some
alarm and checking all things i discovered that i had moved a Small Alarm
Clock
120vac near the K2 and it was causing all the problem . I
Thanks for the many replies, after spending HOURS of tweaking and reading
and retweaking and listening I have a better picture of what my K2 CW
filters are capable of.. There is an interesting dent in each of the curves
that I can not explain.. any ideas?
Worth noting, I found out by accident
I'm posting this on behalf of John, AE5X, who was having trouble
posting to the reflector. See URL below.
--Wayne, N6KR
* * *
My camping trip to the Wichita Mountains was great the KX1 performed
flawlessly. Details, photos, etc at:
http://www.ae5x.com/charon.htm
73,
John AE5X
---
Stuart K5KVH wrote:
He (Frank Witt) measured the Johnson Matchbox, and found although a good
balanced tuner, it did not match all impedances and work on all of today's
bands. -Stuart K5KVH
---
E.F. Johnson specified the Matchbox tuners for 3.5 to 30 MHz. Over that
range, the
Wayne Burdick wrote:
Morse has three other ergonomic advantages you didn't mention:
1. You can send Morse with one hand (even medium-fast text messaging
requires two hands)
Text messaging with my phone requires cradling the phone in one hand and
pressing the digits with the thumb of that
Ken Lotts wrote:
The below chart is the best I can produce with the AGC turned off. Bottom
line is that I get about 6 db of attenuation when I switch to the 200 Hz
filter.
I would say this is typical.
But...your widest filter shouldn't be centered on 570 Hz, since this allows
significant
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