Sorry, I must have missed something. Why would a KNBx have to be built using
ALL
SMT. There is a fair amount of vertical (and some horizontal) space where the
existing KNB2 fits. I have found no space issue with my Pre-Filter. The
requested noise blanker could be a hybrid like the KDSP2, with
Help Needed
After using the K2 for some time with the 100w module and putting back on the
15 watt module for a portable operation a problem occurred:
low batt indication, no power on transmit. with 13v ps. or with charged interne
battery the same thing. but when the 100w module installed and
What is the hand Mic of choice
amongst this august group? Any suggestions are most
welcome.
Best Regards, Bob K7HBG
Bob -
I was making an adapter to use my MD2 desk mike with both my
K2 and my Pegasus. An email to Bob Heil confirmed my
suspicion that the MD2 was the same as Heil's iC
An amusing aside to this thread, when I built the SSB board for my K2, the
only mic I had on hand was one from an old Tempo VHF-1 2 meter rig. This
microphone is identical to many of the older CB microphones, and has a 600
ohm, unamplified, dynamic cartridge. I hooked up the MIC hot ground, PTT
Hello!
After few weeks building incativity due to hot summer I'm back in my
shack. My K2 #4759 has been on the air several months. However, BFO
lower limit frequency didn't meet the required 4912.7 kHz
Leigh, WA5ZNU sent me a mail which he had got from Gary from Elecraft.
Gary adviced to
Rolf,
Yes, re-do CAL FIL to properly reposition the filter passbands - the BFO
controls that positioning, so any change in BFO frequency will cause a
shift.
You should not need to run CAL PLL since the PLL reference oscillator has
not been changed.
Why does adding a capacitor change the
Ken,
It is the VCO - not the bandpass filters. The VCO will stop changing
frequency when the voltage at the left end of R30 goes much above 7.7 volts
and becomes unstable below 1 volt.
It would appear that you need to re-investigate the entire VCO range
adjustment and adjust L30 to get
I didn't wanna say anything but I get better audio reports with a Radio
Shack el-cheapo mic than I do with the MH2 with my voice.
RonE.
WØIFL.
- Original Message -
From: Jim Sheldon [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Wednesday, July 20, 2005 06:03
Subject: RE:
I guess all the mikes for our rigs today have to be low impedance but I am
wondering how a D-104 would sound if we could get it to work! They have
untold punch!
Paul Gates
K1 #0231
KX1 #1186
XG1
[EMAIL PROTECTED]
Original Message Follows
From: Jim Sheldon [EMAIL PROTECTED]
To:
My K-1 (#933) has developed a low power situation on twenty meters. It still
receives on all four bands and transmits fine on the other three. When
tuning into a dummy load, it shows 0.1 watts and then indicates low power. I am
not very technically oriented, and I would appreciate any
Hello,
#2469 lives again. I finally located a sig gen so that I could begin
signal tracing in the IF strip.
As I was beginning, I touched Q21 and the receiver came alive again. A
close inspection of the rx pre-amp (on or off, previously tested) showed
nothing obviously amiss. I reheated
a supercheap computer stereo headset with boom mic $ 8.00
great sounding audioPRICELESS,,
bill
At 08:17 AM 7/20/2005, WØIFL wrote:
I didn't wanna say anything but I get better audio reports with a Radio
Shack el-cheapo mic than I do with the MH2 with my
I bought a really pretty D-104 at a hamfest last Winter with the intent of
doing this. I would probably try it first with the stock mic element and
amplifier but I also picked up a Heil element and ultimately planned on
bypassing the amp and running the Heil element in the D-104.
RonE.
WØIFL
Paul Gates wrote:
I guess all the mikes for our rigs today have to be low impedance but I am
wondering how a D-104 would sound if we could get it to work! They have
untold punch!
---
I just finished refurbishing a D-104 for a buddy to use on his 1950's era
E.F. Johnson
Paul Gates wrote:
I guess all the mikes for our rigs today have to be low impedance but I am
wondering how a D-104 would sound if we could get it to work! They have
untold punch!
---
I just finished refurbishing a D-104 for a buddy to use on his 1950's era
E.F. Johnson
K2:
far better base specs (performance and features)
The K1 has the best specs for spurious output of any Elecraft rig.
Mike / KK5F
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There's no denying the K1 is a very nice, and I'm beginning to think,
underrated rig. The KX1 kind of upstaged this solid little performer.
Due, in no small part, to some product reviews of the KX1 incorrectly
implying that the KX1 was an improved K1. It isn't.
I just say Let me see you work
On Wed, 20 Jul 2005, WØIFL wrote:
I didn't wanna say anything but I get better audio reports with a Radio
Shack el-cheapo mic than I do with the MH2 with my voice.
When I decided I wanted to try SSB with the K2, I realized I no longer had a
mikeso, I took the rig and the docs to the
Well, I'm certainly happy with my choice. The K1 is a serious ham rig and
mine does very well for me.
Eric
KE6US
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mike Morrow
Sent: Wednesday, July 20, 2005 7:07 AM
To: elecraft@mailman.qth.net
Subject: Re:
Thom, K3HRN wrote:
I picked, by the sound of his voice on the tape, the best sounding
mikeand when I had, he asked me for 3.95 for the mike.
I went home and that evening checked into a Maryland net that I hadn't been
in over 30 years.and some of my old budsasked if I was using my TR7 (g).
I would have another thought: Why not redesign a larger K2 with all the
necessary options / improvements in a conventional through hole format and
plenty of space in the box to have them installed.
True this may not be the backpak dream kind of rig, but it can be a high
performance base unit.
- Original Message -
From: W3FPR - Don Wilhelm [EMAIL PROTECTED]
To: Ken Bessler [EMAIL PROTECTED]; Elecraft Main Group
elecraft@mailman.qth.net
Sent: Wednesday, July 20, 2005 8:15 AM
Subject: RE: [Elecraft] K2 #4913 160m issue?
Ken,
It is the VCO - not the bandpass filters. The
Ken,
I really can't underatand why adding only C75 to the circuit (the only
change to the VCO for 160 meters) would throw off your prior adjustments, so
you might want to look for something else.
Actually the only thing I can think of right now is the possibility that T5
is mounted a bit loose
John, our club's K2/100 does the same thing - high current on topband, but
it seems normal on all other bands. I mentioned it on here some months
back, and received some useful suggestions to try, but I never did find
anything wrong as such, or a cure for that matter.
73 Fraser G4BJM
You can either use a high impedance to low transformer for the D104 mike, or
get one of the D104 amplified mikes which has a impedance converting
transistor circuit in its base, able to drive low impedance modern
microphone inputs.
The crystal high impedance element of the 104 needs to look into
Hi Wayne,
A thought for you. Some of us out here aren't afraid of surface mount
construction. For example I've built the DB6NT 10 GHz down-converter,
and some other similar stuff too. For your amusement I love tube stuff
and I'm a member of the glowbugs list. But the world is going to SMT and
Uuh! This is going to be hard!
After completing ssb kit to K2 I decided to wire mics for K2. I have two
mic connectors, one for Heil headset adapter cable and another to be
used in Yaesu MH31 mic from FT857/817/897.
I decided to wire MH31 first. There was a RJ45 connector in cable.
Through
Saw this posted on TowerTalk... from the following link...
http://www.fcc.gov/Daily_Releases/Daily_Digest/2005/ddtoday.html
AMENDMENT OF PART 97 OF THE COMMISSION'S RULES TO IMPLEMENT WRC-03
REGULATIONS APPLICABLE TO REQUIREMENTS FOR OPERATOR LICENSES IN THE
AMATEUR RADIO SERVICE. Revised the
Larry, N8LP wrote
Sad day for amateur radio
--
Not at all, Larry!
The FCC has simply told us Hams in the USA that it's time to set our own
agenda. They recognize that there's a huge interest in CW and that it's one
of the most popular modes today,
I guess I should have read it more completely. Yes, I guess it's just
another case of deregulation, and I suppose we don't need the government
telling us to like cw ;-)
BTW, I too have that pretty blue piece of wallpaper on my wall, although
I did need it way back when ;-)
73,
Larry N8LP
I'm looking for some parts. IF you use a company other than Mouser,
Jameco Allied I would really like to know
RC kc5wa
--
No virus found in this outgoing message.
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Rolf,
Yes, it is going to be hard since you have already cut the cable. It IS
possible to solder to those leads but it takes a great deal of care and
patience. Do not try to trim off the cotton, just tin the leads as they are
(cotton and all) and it can work. Headphone cords are similar
Try DigiKey, Dan's Small Parts, Ocean State Electronics, The Wireman,
RadioWorks, Marlin P Jones and Associates, All Electronics, Fair Radio
Sales, RF Parts, and a miriad of others, I have ordered from each of them at
one time or another, it all depends on what parts you are looking for. Each
has
I have one of the older KPA100s and have done all the mods and upgrades.
However, I have seen a recommendation to change C80 and C81 from 4700 to 5600.
I have not seen these cap changes in the errata sheets. My KPA100 works well
on all bands, 160 thru 10 (including 60 meters) with full
Hi guys,
It seems that my S Meter calibration is changing. I noticed this when I
was building the K2 and it seems to happen occasionally. What usually
occurs is when I take the RF gain all the way counter clockwise, the
last LED does not light up. I readjust it so that it does. It should
I read the entire NPRM. They make their case well, but they ignore some
logical extensions of their arguments.
If the telegraphy requirement is defined simply as demonstrating basic
ability in one mode of communication and is therefore unnecessary becase
skill in other modes is not required, then
You're right on, Ron. I left most of my hearing in SE Asia 40 years
ago, and CW is my choice, particularly for contesting. I worked my way
through college in the late 50's/early 60's in FM and TV broadcast with
a 1st phone. I still hold the wallpaper you mentioned. I worked my
senior year
On Thursday 21 July 2005 01:33, Craig Rairdin wrote:
OTOH I know I'm dangerously close to sounding like an Old Fart. I'm somewhat
disgusted to think that there will be Extra Class licensees that don't know
code but will be indistinguishable from me. (At the same time, the fastest
code test I
Roy Morris wrote:
I have one of the older KPA100s and have done all the mods and
upgrades. However, I have seen a recommendation to change C80 and
C81 from 4700 to 5600. I have not seen these cap changes in the
errata sheets. My KPA100 works well on all bands, 160 thru 10
(including 60
Hi all
Here's what works to cancel line noise at my QTH. I purchased, on Ebay,
an MFJ 1026 Deluxe Noise Cancelling Signal Enhancer gadget. I paid 125
bucks for like new. It takes most of my line noise from S6 or S7 down to
S1, or so, and I am delighted with it. One caveat: It is not as
On Wed, 20 Jul 2005, Craig Rairdin wrote:
OTOH I know I'm dangerously close to sounding like an Old Fart. I'm somewhat
disgusted to think that there will be Extra Class licensees that don't know
code but will be indistinguishable from me. (At the same time, the fastest
code test I passed was
One other thing Thom When I got my Extra in 2002 @ 72 years old, there
were Extra's who were unhappy about 5WPM So I said, OK guys I passed a
13 WPM test for your information. And, let's get down to brass tacks I
will take a 20wpm test and you guys take the theory exam for Extra.
so there are probably
some 20 WPM Extras out there who can't stand to be in the room with me,
either.)
I took my extra in 1978, in Fargo, ND, if I can recall correctly, the code
speed was actually 21 wpm. However, I may be one of the weird ones, but I
don't look down on any hams, whether
Morris,
If your KPA100 works FB, do not change anything.
I have it on good authority that the real problem is not the capacitors, but
the resistors, particularly the 1.6 ohm 2 watt resistors. Apparently the
manufacturer changed to an inductive design without consulting with their
clients
At the same time, the fastest
code test I passed was 13 WPM for my General in 1974, so there are probably
some 20 WPM Extras out there who can't stand to be in the room with me,
either.
This 20 WPM Extra Class licensee will welcome the No Code Extras and do
my best to help them discover and
On Wed, 20 Jul 2005, Paul Gates wrote:
One other thing Thom When I got my Extra in 2002 @ 72 years old, there
were Extra's who were unhappy about 5WPM So I said, OK guys I passed a
13 WPM test for your information. And, let's get down to brass tacks I
will take a 20wpm test and you
The local oscillator level at TP1 is 1.06 VDC (0.8 - 1.2)
LNA at TP2 is 241 mV with R13 set at its limit (CW)
R22 at its limit (CW) will just hit 20 W (PEP)
L15 peaks at 2 turns above the top of the can instead of two turns
down. I'm suspicious that I may have the wrong capacitor at C53. The
The local oscillator level at TP1 is 1.06 VDC (0.8 - 1.2)
LNA at TP2 is 241 mV with R13 set at its limit (CW)
R22 at its limit (CW) will just hit 20 W (PEP)
L15 peaks at 2 turns above the top of the can instead of two turns
down. I'm suspicious that I may have the wrong capacitor at C53. The
Back in the day, when I had the blue paper (FCC First Phone) and the white
paper (FCC Second CW) and the blue and white paper (Amateur Extra acquired
before the days of incentive licensing) I considered that any compromise on
the code requirement would lead directly to the demise of Western
On 7/20/05 3:44 PM, Stuart Rohre [EMAIL PROTECTED] wrote:
You can either use a high impedance to low transformer for the D104 mike, or
get one of the D104 amplified mikes which has a impedance converting
transistor circuit in its base, able to drive low impedance modern
microphone inputs.
Hi,
Many moons ago, I was employed as a Telephone Exchange Tech, and one
of the joys :-( of the job was making up switchboard leads for the Toll
boards and old manual exchanges that used to be scattered around the
district. (no new-fangled electronic exchanges in those days)
And those of us who took our 13 wpm AND 20 wpm code tests in front of a
grumpy FCC Inspector waiting for retirement instead of a collegial VE buddy
can't stand to be in the same room with ANY of you guys!
Eric
KE6US
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
Aren't those F.A.R.T.S. just called Sailmail customers for FCC purposes?
Eric
KE6US
-Original Message-
And don't forget, Dues Paying member of the Future Amateur Radio Technical
Sailboaters.
Thom
www.baltimorehon.com/Home of the Baltimore Lexicon
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