Re: [Elecraft] KSB2 problems in K2 transceiver

2021-05-08 Thread Don Wilhelm
Mark, When you have the problem, look at the voltage at P1 pin 6 (that is VRFDET signal)? If that is high, the MCU will limit power drastically. Make sure Q1 is properly oriented.  If that does not help, try a mod to the KSB2 - reduce R9 to 1.5k and cut the trace between P1 pin 6 and the

Re: [Elecraft] KSB2 problems in K2 transceiver

2021-05-08 Thread Mike K8CN
Mark, Pin 5 of U2 provides ALC threshold voltage to the emitter of Q1 on the KSB2 board. The 5.89 V you measured on Pin 5 suggests that the DAC input register B didn't properly load the data word from the MCU. I would check the solder joints on all U2 pins and Pins 14, 16 and 17 of the MCU

[Elecraft] KSB2 problems in K2 transceiver

2021-05-08 Thread M Bak
Today I finished the KSB2 adapter and installed it into my K2. It worked first time but was intermittent. I found the issue as I had omitted to solder the outer top pins of the twin three pin interconnects. That done everything seems ok and then No Apparent RF output. USB/LSB/CW Pressing

[Elecraft] KSB2 Assembled For Sale

2015-03-18 Thread Jerry Holcomb
I have for sale an assembled KSB2 sideband board for the K2. $75.00 shipped CONUS. Jerry Holcomb N0XWR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] KSB2 Problem Continued

2015-01-15 Thread Don Wilhelm
Gareth, Yes, 100mV audio should be adequate to drive the KSB2. Do you have the K2 wired to use an Elecraft or Icom microphone? If so, try lifting the bias resistor to see if the DC bias is interfering with the output level of your audio generator - instead of lifting the bias resistor, you

[Elecraft] KSB2 SSB Adapter Problem

2014-01-18 Thread Darrell Hagan
Hi everyone! I recently bought a used K2 with the KSB2 SSB adapter. The builder did a very clean, professional building job on both the radio and the KSB2 and I can find nothing wrong with the construction - i.e. no cold solder joints, no shorts, no solder bridges, all circuit paths are as

[Elecraft] KSB2

2013-04-14 Thread dan
Has anyone else had a problem with high current on transmit after installation of the ksb2? I took it out and everything returned to normal. Filters work great and no degraded receive just high current on transmit. I am going through the voltage and short checks that are in the book trying to

[Elecraft] KSB2 and KAF2

2013-03-13 Thread Bernie KF0QS
Dear Folks: I thought I'd mention that I successfully installed my KSB2 in my K2 a week ago Sunday, and it works great. I've been getting excellent audio reports from people and have even managed to work some DX on QRP SSB. What fun to have SSB installed in the K2, even though I'm primarily a

[Elecraft] KSB2 Problem with Assembly

2012-08-01 Thread KC9QQ
I am currently in the process of assembly a KSB2 (REV E KSB2 PC Board) which I purchased with my K2 in November 2011. I am currently completing the installation of the resistors on the back side of the board. After I completed installing the resistors I noticed that I had an extra 10K resistor.

Re: [Elecraft] KSB2 Problem with Assembly

2012-08-01 Thread Don Wilhelm
Fred, Look carefully, that new manual does not match your KSB2. Yours has an SSM2165 Speech Compressor and the new one uses an SSM2166 - the added resistors support that new IC. As far as the extra 10k resistor, one is supplied with every KSB2 for use as a bias resistor if needed. It is

Re: [Elecraft] KSB2 screw up --

2011-09-14 Thread David Lankshear
Just a tail end to what was said about Edsyn. They charge a monumental sum for shipping, BUT they send orders in pre-packs by the most economical method and then they refund the difference back onto your card. They say it's due to a very old website Sorry I didn't mention it before and I

[Elecraft] KSB2 screw up

2011-09-13 Thread TJ Campie
So I accidentally skipped the first page of instructions then found that I had some parts left over at the end of construction and I was missing the header P1 or whatever, so I grabbed the connector and soldered it inonly to find that the previous owner of my K2 had already put the female

Re: [Elecraft] KSB2 screw up

2011-09-13 Thread Dale Putnam
@mailman.qth.net Subject: [Elecraft] KSB2 screw up So I accidentally skipped the first page of instructions then found that I had some parts left over at the end of construction and I was missing the header P1 or whatever, so I grabbed the connector and soldered it inonly to find that the previous

Re: [Elecraft] KSB2 screw up

2011-09-13 Thread John Cooper
: [Elecraft] KSB2 screw up So I accidentally skipped the first page of instructions then found that I had some parts left over at the end of construction and I was missing the header P1 or whatever, so I grabbed the connector and soldered it inonly to find that the previous owner of my K2 had already

Re: [Elecraft] KSB2 screw up --

2011-09-13 Thread John Ragle
Tom... Such things are a pain in the ASCII...and I have made several mistakes of this kinds previously. After fooling around, tearing traces, etc. I have discovered that BY FAR THE BEST way to go about this is to use solder braid. You can buy it in small spools from Radio Shack, or just

Re: [Elecraft] KSB2 screw up

2011-09-13 Thread Don Wilhelm
Tom, It won't help you with that task right now since you have already done the deed, but the process is easy. For removing the male headers, you can tug on one pin with pliers while heating the solder - that pin will come out - continue while they are all out. For the female headers, the

Re: [Elecraft] KSB2 screw up --

2011-09-13 Thread Don Wilhelm
John, Each to his own choices, but I would NEVER use a drill of any sort in a thru-plated hole Even if the trace is only on one side (particularly on the component side), I would not take the chance. Consider the situation where the PC trace is only on the component side of the board - you

[Elecraft] KSB2 with HM-7 mic question

2011-09-13 Thread TJ Campie
Thought of something else I ran into last night - I did not have any 820 Ohm resistors to install on the config connector when wiring up for my Icom HM-7 microphone so I used a 1.1k - what are the effects of using a larger value? Should I try to find/make an 820 Ohm resistor or does it matter? TJ

Re: [Elecraft] KSB2 screw up --

2011-09-13 Thread John Ragle
Don: Well, since you put this out to public view, I will answer in public. Please note my admonition to BE CAREFUL, and my suggestion to use a pin vise, not a powered device. There is no need for a complicated set of rules of behavior when common sense will do. If you are so concerned about

Re: [Elecraft] KSB2 with HM-7 mic question

2011-09-13 Thread Don Wilhelm
Tom, That microphone has an internal amplifier, and the resistor acts as a collector load resistor. I would guess that anything from the recommended 820 ohms up to about 2k would work, but I can't say for sure since I do not have data on the current drawn by the amplifier from a 5 volt

Re: [Elecraft] KSB2 screw up --

2011-09-13 Thread Fred Townsend
-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Tuesday, September 13, 2011 8:49 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KSB2 screw up -- John, Each to his own choices, but I would NEVER use a drill of any sort in a thru-plated hole

Re: [Elecraft] KSB2 screw up

2011-09-13 Thread William Ravenel
When I built my K1 I actually installed a male connector in the wrong set of holes and was able to successfully remove it without destroying it. I used a large solder sucker (plunger type) and cleared one hole at at time. With a little additional heating and wiggling I was able to pull the

Re: [Elecraft] KSB2 screw up --

2011-09-13 Thread Wayne Conrad
I don't think anyone has mentioned my favorite fix the goof soldering tool, a great big vacuum desoldering pump. I use a Soldapult Deluxe that usually cleans the holes right out, without the foul language that solder braid seems to need. Do the experts prefer solder braid, or is that just

Re: [Elecraft] KSB2 screw up --

2011-09-13 Thread Don Wilhelm
Wayne, That is just where the conversation led. I would not trade my Hakko 808 for solder braid - but there are times when solder braid is the best answer, use whatever will do the best job. 73, Don W3FPR On 9/13/2011 4:37 PM, Wayne Conrad wrote: I don't think anyone has mentioned my

Re: [Elecraft] KSB2 screw up --

2011-09-13 Thread Brendan Minish
I have always had great results with the simple Spring loaded solder suckers that you use with your normal iron. There is a bit of technique in using them effectively and it's important to keep the solder sucker well cleaned. In addition to this do ensure it's lubricated once in a while and

Re: [Elecraft] KSB2 screw up --

2011-09-13 Thread Dale Putnam
To: elecraft@mailman.qth.net Date: Wed, 14 Sep 2011 00:12:51 +0100 Subject: Re: [Elecraft] KSB2 screw up -- I have always had great results with the simple Spring loaded solder suckers that you use with your normal iron. There is a bit of technique in using them effectively and it's important

Re: [Elecraft] KSB2 screw up --

2011-09-13 Thread David Lankshear
I've used the spring type solder sucker for decades and it works well for me. A memorable event in my solder sucking career was the removal of the main right angled multipin connector that had been soldered to the wrong side of a part built K2 RF board. The board was returned to its owner with

Re: [Elecraft] KSB2 screw up --

2011-09-13 Thread Sam Morgan
Couldn't afford the vacuum kit I wanted, so I built a low end wantabe tool for my desoldering tasks. I have combined a Radio Shack 45-Watt Desoldering Iron https://www.radioshack.com/product/index.jsp?productId=2062731 and one of Radio Shack's (popper styled) Vacuum Desoldering Tool

Re: [Elecraft] KSB2 screw up --

2011-09-13 Thread Ron D'Eau Claire
Soldapulit sells an especially marked ESD Safe unit (Mfgr p/n SS750LS). It isn't expensive - somewhere between 9 and 11 USD. Dale is quite right. ESD safety is always something to check on with anything that is brought into contact with modern gear. Ron AC7AC -Original Message- One

[Elecraft] KSB2 being procured

2011-09-07 Thread TJ Campie
I am in the process of procuring a KSB2 - thank you for the offers. TJ W0EA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net

[Elecraft] KSB2 Resistor Packs

2011-08-18 Thread vk8fqrp
Good Day All, Going through the inventory for the KSB2. RP1 2 are 8pin 101577083272p however I have only got one of these, the other 8 pin is L83C103. Have things changed or have I been sent an incorrect part? Regards Brendon VK8FQRP -- View this message in context:

Re: [Elecraft] KSB2 Resistor Packs

2011-08-18 Thread Don Wilhelm
Brendon, I would wager that you purchased the KSB2 about 3 months ago. There was a short period of time when only 1 of those R-Paks was placed in the bag. That problem has been corrected by the kiting quality control. I spotted the problem when I found 2 kits with only one 2.7k R-Pak - one

Re: [Elecraft] KSB2 Resistor Packs

2011-08-18 Thread vk8fqrp
Thanks for the reply Don, Will send off an email. Regards Brendon -- View this message in context: http://elecraft.365791.n2.nabble.com/KSB2-Resistor-Packs-tp6701616p6701798.html Sent from the Elecraft mailing list archive at Nabble.com.

[Elecraft] KSB2 Question

2011-05-29 Thread David Dietrich
Hi All! I have subscribed to this list in the past when I was working on my K1-4 a few year back.  I just recently broke down and bought a K2 (10 W) s/n 7164.  I'm long overdue to get one, but I figured it was now or never.   I am planning on using this rig as a CW only QRP radio.  I am not

Re: [Elecraft] KSB2 Question

2011-05-29 Thread Don Wilhelm
David, If you are considering the KSB2, I would suggest you install it and the mic jack - it will be ready if you ever decide to try out some digital mode. 73, Don W3FPR On 5/29/2011 3:34 PM, David Dietrich wrote: Hi All! I have subscribed to this list in the past when I was working on my

Re: [Elecraft] KSB2 Question

2011-05-29 Thread Jim Dunstan
At 12:34 PM 5/29/2011 -0700, you wrote: Hi All! I have subscribed to this list in the past when I was working on my K1-4 a few year back. I just recently broke down and bought a K2 (10 W) s/n 7164. I'm long overdue to get one, but I figured it was now or never. I am planning on using this

Re: [Elecraft] KSB2 build time?

2011-05-09 Thread Don Wilhelm
TJ, If you are doing it for the first time, give yourself 8 to 12 hours for the whole task. As Alan Wilcox has said, use Specrtrogram for alignment, and become familiar with its use beforehand since you have a deadline. The use of Spectrogram 5.17 (and its download) is available from Tom

[Elecraft] KSB2 build time?

2011-05-05 Thread TJ Campie
How long do you think it should take to complete a KSB2 including tuning and such? I plan on getting one at Dayton and would like to have it done in 3 or 4 evenings so I can use it when I do a SOTA activation over memorial day weekend. (which I leave for Thursday night) So figure 4 hours a

Re: [Elecraft] KSB2 build time?

2011-05-05 Thread VK7JB
Hi Tom, I'm a slow and methodical constructor and the KSB2 took me 8 hours to build, over 4 nights. What took a bit of time for me was the BFO alignment to optimise TX audio, configuring the filters etc. I found Spectrogram very helpful. I did a lot of monitoring and recording to get the

Re: [Elecraft] KSB2 build time?

2011-05-05 Thread Alan D. Wilcox
TJ, If you've built kits before, you should have plenty of time to get it done. Enjoy the build! You might want to order some toroids from Mychael, The Toroid Guy, ahead of time so you have them ready. Watch that you put the diodes in properly. I always fold the top lead down on all of them

Re: [Elecraft] KSB2 build time?

2011-05-05 Thread Don Wilhelm
Tom, John's comments are right on for the entire process of building, installing and doing the alignment. The building is not a problem, it just depends on your construction methods - if you are a insert one component and then solder it type of builder, it will take you longer than those who

[Elecraft] KSB2 Setup issue

2009-05-02 Thread Matt Palmer
Got my KSB2 to the point where I am running the BFO setup for LSB/USB, i get all the way thru setting the LSB/BF!t frequency, I hit band- to return to the BFO parameter display, but when i hit mode to change the mode I am getting an info 230 message, and they K2 kicks me out of the menu without

Re: [Elecraft] KSB2 Setup issue

2009-05-02 Thread Matt Palmer
Discovered my freq counter probe is intermittent, trying to fix, but ordered a new one from elecraft just in case, guess i'll have to shelve the k2 until the new one arrives. Matt W8ESE Former KD8DAO http://blog.MattIsKichigai.com On Sat, May 2, 2009 at 12:14 PM, Matt Palmer kd8...@gmail.com

Re: [Elecraft] KSB2 Setup issue

2009-05-02 Thread Don Wilhelm
Matt, Check the crimp pins in the connector housing - that is the most common place for the probe to fail. The pins must be inserted correctly into the housing and the small tabs must lock into the rectangular holes in the side of the housing. If the wire has been inserted too far into the

[Elecraft] KSB2

2008-11-08 Thread David Robertson
Curt, I have 2 K2s and both have the KSB2 option. First, Installing the SSB option and aligning it correctly doesn't reduce the K2's effectiveness in the CW mode, in fact it inhances it. Second, This option opens the door to digital, SSB and sstv communications. If your K2 is stock CW then you

[Elecraft] KSB2 INSTALL - RX LOST

2008-05-15 Thread MTcja
Just throwing this out there while I start backtracking to figure it out. I have installed the K160RX, KAT2, KBT2 and now the KSB2. Prior to install I was able to hear activity on the bands. After install I could hear very few stations. On the ones that I could hear, it was barely so even

Re: [Elecraft] KSB2 INSTALL - RX LOST

2008-05-15 Thread Don Wilhelm
Chris, Track down the receive problem first - it is not related to either the mic wiring or the transmit path. The problem is on the KSB2 board. First thing to check is the orientation of the diodes on the KSB2 board - all the cathodes (marked ends) should be mounted away from the board. The

RE: [Elecraft] KSB2 INSTALL - RX LOST

2008-05-15 Thread James C. Hall, MD
, May 15, 2008 12:27 PM To: elecraft@mailman.qth.net Subject: [Elecraft] KSB2 INSTALL - RX LOST Just throwing this out there while I start backtracking to figure it out. I have installed the K160RX, KAT2, KBT2 and now the KSB2. Prior to install I was able to hear activity on the bands. After

Re: [Elecraft] KSB2 INSTALL - RX LOST

2008-05-15 Thread Joe Planisky
Have you checked the obvious things? I feel qualified offering the following suggestions as I've made all of these mistakes myself :-) - Make sure the antenna is plugged into the right connector. If your KAT2 is connected, use one of the Antenna Tuner connectors on the back side of the

Re: [Elecraft] KSB2 INSTALL - RX LOST

2008-05-15 Thread Peter Wollan
This sounds a lot like a problem I had installing the KNB2 (which still isn't solved, regrettably). The cables between the top cover and the main boards of the K2 have a variety of connections, and they can get flexed in taking the cover off. In my case, the ground shield broke at the

Re: [Elecraft] KSB2 INSTALL - RX LOST

2008-05-15 Thread Joe Planisky
Oh, forgot about rAnt. Make sure you didn't accidentally turn on rAnt (the receive-only antenna you get with the K160RX option) in the menu. It's right next to the CAL menu item and I've accidentally turned it on while calibrating the filters. 73 -- Joe KB8AP On May 15, 2008, at 11:34

RE: [Elecraft] KSB2 INSTALL - RX LOST

2008-05-15 Thread James C. Hall, MD
: [Elecraft] KSB2 INSTALL - RX LOST Hi Glenn: FB on all this. I LOVE the idea of a hard number of paid members such as 11 for club business. All I saw was a typo or two - checks for club rather than 'cub' business. HI Also you have two instances of the word 'next' in one sentence to describe the 2

[Elecraft] KSB2: Accidentally reversed RP2 - OK?

2008-05-14 Thread TF3KX
I was staying up a bit too late last night, assembling my KSB2, and accidentally installed the 2.7K resistor network RP2 reversed (pin1 is where pin 8 should be, etc.). Now, if RP2 simply consists of four equal and individual resistors (pins 1-2, 3-4, 5-6, 7-8) I would believe this does not

Re: [Elecraft] KSB2: Accidentally reversed RP2 - OK?

2008-05-14 Thread John R. Lonigro
Kristinn: Looks like the resistor gods were with you this time. If you look at the schematic for the KSB2, you'll see (upper right corner) that RP2 is 4 separate resistors with no pins in common (1-2, 3-4, 5-6, 7-8), so you can keep RP2 installed reversed. The same is true for RP1. HOWEVER,

Re: [Elecraft] KSB2 mic hook up

2008-01-03 Thread Mike Harris
Hi Robert, Correct, just had the side off #1400 to check. Regards, Mike VP8NO - Original Message - From: Robert 'RC' Conley [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Wednesday, January 02, 2008 10:24 PM Subject: [Elecraft] KSB2 mic hook up | I'm installing the KSB2 in K2

[Elecraft] KSB2 mic hook up

2008-01-02 Thread Robert 'RC' Conley
I'm installing the KSB2 in K2-#6321. I'm using A Kenwood MC-43S Mic from my TS 850S. It looks like all the pins are wired straight across EXCEPT PINS 5 6 6 WHICH ARE NOT JUMPED if I'm reading it right RC kc5wa ___ Elecraft mailing list Post to:

Re: [Elecraft] KSB2 sidetone?

2007-11-19 Thread Don Wilhelm
Chris, I cannot relate 'sidetone in the headset' with SSB operation. In CW, there is a sidetone presented to the headphones or speaker which follows the keying, but there is nothing of that sort for SSB. If you lost your CW sidetone while using the K2 memory, that is quite another matter.

RE: [Elecraft] KSB2 sidetone?

2007-11-19 Thread Craig Rairdin
I cannot relate 'sidetone in the headset' with SSB operation. In CW, there is a sidetone presented to the headphones or speaker which follows the keying, but there is nothing of that sort for SSB. The K3 does provide a means of monitoring the transmitted audio (but that is not a

Re: [Elecraft] KSB2 sidetone?

2007-11-19 Thread David Cutter
@mailman.qth.net Sent: Monday, November 19, 2007 3:08 PM Subject: RE: [Elecraft] KSB2 sidetone? I cannot relate 'sidetone in the headset' with SSB operation. In CW, there is a sidetone presented to the headphones or speaker which follows the keying, but there is nothing of that sort for SSB. The K3

Re: [Elecraft] KSB2 sidetone?

2007-11-19 Thread Robert 'RC' Conley
to taste and local conditions. David G3UNA - Original Message - From: Craig Rairdin [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, November 19, 2007 3:08 PM Subject: RE: [Elecraft] KSB2 sidetone? I cannot relate 'sidetone in the headset' with SSB operation. In CW

[Elecraft] KSB2 sidetone?

2007-11-18 Thread Chris Kantarjiev
Even though I built and installed a KSB2 a year or so ago, this week is the first time I've actually used it. I have to admit, phone operation is sort of fun, though I'm not likely to spend much time outside contests doing it - altogether too much like a telephone. One question: there doesn't

Re: [Elecraft] KSB2 OP1 filter USB response...

2007-10-08 Thread John Magliacane
--- Steve Kallal [EMAIL PROTECTED] wrote: It has been a few weeks since I built the KSB2 option. There is one problem I haven't yet resolved. The response on the USB side of OP1 is not as broad as the LSB side, and has a narrower peak. Hi Steve. Assuming your KSB2 is working properly, what

[Elecraft] KSB2 OP1 filter USB response...

2007-10-06 Thread Steve Kallal
It has been a few weeks since I built the KSB2 option. There is one problem I haven't yet resolved. The response on the USB side of OP1 is not as broad as the LSB side, and has a narrower peak. I didn't pay much attention to this before. I've never transmitted in USB except for the digital modes

Re: [Elecraft] KSB2 OP1 filter USB response...

2007-10-06 Thread Don Wilhelm
Steve, Tell us more. The SSB OP1 filter as observed with Spectrogram in LSB or USB should show a relatively flat passband extending from about 300 Hz to 2600 Hz. I do not understand 'peak' in that context. It may be that your BFO frequencies are not adjusted properly, but your use of the

Re: [Elecraft] KSB2 No Transmit Audio

2007-08-20 Thread Don Wilhelm
Mark, The path through Q1 is only used in CW mode to make the path from the BFO to the Transmit Mixer (on the RF Board) complete - that circuitry replaces C167 which you removed from the RF board. For SSB, the Balanced modulator signal goes 'backwards' through the filter and is applied to Q2

[Elecraft] KSB2 No Transmit Audio

2007-08-19 Thread Beth Wenzel
Hi guys, i built my k2 about a year and a half ago, I've recently decided to add a Ksb2, all wen together well, but... alas it doesn't work. I've checked all of the signal voltages, everything is ok. I've traced (with an o-scope) a nice looking modulated signal to the top of D3, then nothing.

[Elecraft] KSB2 Kit Resistor query

2007-08-17 Thread Denis Jackson
Hi, Just got to the step in the control panel where, if you are also planning to fit the KSB2 board, you add some of the optional components to the control board. On the KSB2 instructions, page 16, it says R13 is 68.1k - and also in the inventory on page 3 it gives the same value for this

[Elecraft] KSB2 Fine Carrier Adjustment

2007-04-06 Thread Steve Watkins
Thanks to Jerry, WA2DKG, I got past the Deaf K2 by plugging the speaker into the P5 on the RF board vs. the Control Board. I'm not sure how or where I missed that it should be plugged in there, but it works, so things weren't shorted after all on the KSB2 board. Now I'm at the Fine Carrier

[Fwd: Re: [Elecraft] KSB2 Fine Carrier Adjustment]

2007-04-06 Thread Don Wilhelm
I noticed this did not go to the list - I intended it to! 73, Don W3FPR Original Message Steve, Yes, just put a short length of wire on the other receiver and adjust the spacing, length of antenna and other things so you get about an S-9 or just a bit higher signal on the

[Elecraft] KSB2

2007-03-31 Thread Phil Zminda
I just finished my KSB2 and was ready to get it checked out with the mike, but I accidently put the 16 pin header on the wrong side of the Control Board. I was able to get it out but not without ruining it. Other than being more convenient to change mikes, any real need for the header? Do any

[Elecraft] KSB2 Bandwidth modification

2007-03-05 Thread Barry, Stephen
Question for the K2 listserv. I have a K2 (s/n 377) and the KSB2 with the normal 2.1 KHz. bandwidth configuration. I get excellent audio reports but it is narrow. I'm thinking of purchasing another KSB2 board and want to make it either 2.4 or 2.6 KHz. For any who may have made

RE: [Elecraft] KSB2 Bandwidth modification

2007-03-05 Thread Siu Johnny
quality with reasonable selectivity. 2.6Khz is too wide for me. For most voice operation, 2.4khz is the norm. 73 Johnny Siu VR2XMC From: Barry, Stephen [EMAIL PROTECTED] To: elecraft@mailman.qth.net Subject: [Elecraft] KSB2 Bandwidth modification Date: Mon, 5 Mar 2007 13:32:23 -0500 Question

[Elecraft] KSB2 SSB Use Report

2007-02-21 Thread Scheidler, Dale A.
I wanted to report that the K2 (#5230) with KSB2 SSB board and Kenwood MC 43S mic was used for my first contact with a local ham. He has a K2 and was interested in hearing my radio because he has never heard a K2 voice transmission. Said I sounded fine and the mic and board were working well.

[Elecraft] KSB2 - need to configure P1 before coarse carrier balance?

2007-01-30 Thread ub5_073_oleg
Hi, I'm currently checking/aligning my KSB2. The microphone is not purchased until now, but I still wanted to adjust KSB2 tonight as far as I could. Can I do a coarse carrier adjustment without configuring P1 first? (R1 has no effect on field strength, S-meter is zero)

[Elecraft] KSB2 SSB Adapter problem

2006-12-27 Thread Håkan Olsson
I have just put together the KSB2 SSB ADAPTER and I have problems. Referring to the manual on page 15 “Initial Test” the last paragraph “Verify that the K2 performs...” I do not get any sound in the loudspeaker, or the sound I get is very very muted. I can hear some very faint - both CW and

RE: [Elecraft] KSB2 SSB Adapter problem

2006-12-27 Thread Don Wilhelm
Haken, At this point, do not be concerned about those voltages you found did not agree with the chart in the manual. The no voltages at the diodes is a cause for concern. The problem may be in where you measured for voltage or the settings you were using. We will get to that. Let's verify

Re: [Elecraft] KSB2 SSB Adapter problem

2006-12-27 Thread Håkan Olsson
Don, it was a short betwen either RFC1 or RFC2 and one of the crystal cases that caused the problem. Really embarassing because it was basically the first and only real problem I have come upon building my K2 #5810 and all the extras... :-) It's so easy to happen that I really think it

[Elecraft] KSB2 board - should be renamed.

2006-11-17 Thread Darwin, Keith
I started the KSB2 last night. Between interruptions, I got about 1/2 way through. I think the board should be renamed. Call it the 103 board. Man are there a bunch of blue 103 caps to install! With tonight's effort I just may have the rig ready for some SSB action this weekend. - Keith

[Elecraft] KSB2 no audio output

2006-11-13 Thread ve2ssl
Hi, My SSB module worked fine before. I add my kpa100 and every test went well. I test my kat100 and every test went well until I did the last test with the dummy load. Now my Mic is sending a tone. No more voice. But the power still there. Is any body had this probleme? Best regard and best

RE: [Elecraft] KSB2 no audio output

2006-11-13 Thread Ron D'Eau Claire
Are you still in SSB mode or perhaps did the MODE button get bumped to put you in CW mode?? Ron AC7AC -Original Message- Hi, My SSB module worked fine before. I add my kpa100 and every test went well. I test my kat100 and every test went well until I did the last test with the dummy

[Elecraft] KSB2 ALC Mod

2006-08-15 Thread Roy Morris
Some time ago I installed the PN amp mod to my KSB2 board to increase the 10 meter SSB output on my QRP K2. Later I added the KPA100. John (KI6WX) said the KSB2 amp mod was no longer needed since adequate output is obtained on 10 meters. I have since removed this PN amp mod. However,

RE:[Elecraft]KSB2

2006-07-27 Thread Richard Kent
Before you send it off. Check the diodes. I installed 1 backwards and got the same issues. I am referring to the switching diodes on both ends of the crystal filter. Richard Kent, WD8AJG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net

[Elecraft] KSB2

2006-07-26 Thread Fred Jensen
Hi all, Although I operate almost no SSB, I built the KSB2 for my K2 (#4398) late last year so I could use the K2 for RTTY contests. It seems to do everything a well conditioned KSB2 should do except it exhibits about 30 dB loss through the on-board filter. Thus, the SSB output from the K2

RE: [Elecraft] KSB2

2006-07-26 Thread Dan Barker
I think you should keep the KSB2 until the new one is finished also, BUT... The statement without it, my beloved K2 is dead is not true. Just stick a couple jumpers in the short jacks (1 to 3), and a [I Forgot] pF cap in the big one, between 5 and 7 if memory serves. Dan / WG4S / K2 #2 456

RE: [Elecraft] KSB2

2006-07-26 Thread Ron D'Eau Claire
Fred, take care not to put too much solder on the pins of the crystals when you install them in your new KSB2. One of the most common reasons for low gain is a bit of solder that puddled around the pin under the crystal can where you can't see it and shorting the signal path to the can. Remember,

[Elecraft] KSB2 and microphone gain

2006-06-30 Thread Piet Meindertsma
I just completed a number of mods for the SSB module, described by KI6W ('Improving the Performance of the KSB2'), by DF7KHK (increase of audio compression) and by DJ3FR (change R8 and R10 to 560 Ohm). After these modification I played a bit with the radio. During a contest last weekend I

[Elecraft] KSB2 R15

2006-06-29 Thread Mike Short
I am building the KSB2, and R15 (180 ohms) is missing. Can I substitute a 220 ohm resistor for this? It is the attten signal on the Mic AF. Mike AI4NS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the

Re: [Elecraft] KSB2 in K2/100

2006-06-19 Thread John, KI6WX
I know this message is a bit old, but I've been too tied up with other projects to read the reflector mail for the last two months (fyi - the reflector generated over 2000 emails in the last 2 months). The increased gain mod I did for the KSB2 was originally designed to increase the transmit

Re: [Elecraft] KSB2 in K2/100

2006-06-19 Thread Rick Dettinger
John - KI6WX said: (fyi - the reflector generated over 2000 emails in the last 2 months). == No wonder I havn't got the house painted! Rick Dettinger K7MW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You

[Elecraft] KSB2 in K2/100

2006-06-03 Thread Roy Morris
I would like to hear from anyone who has K2/100s with both the unmodified KSB2 and the modified KSB2 with the KI6WX 2N amp mod (and 1.08 firmware). How does this mod affect mic gain and VOX operation? How does the absence of this mod affect mic gain and VOX operation? Does the mod help

RE: [Elecraft] KSB2 in K2/100

2006-06-03 Thread Ron D'Eau Claire
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roy Morris Sent: Saturday, June 03, 2006 9:42 AM To: elecraft@mailman.qth.net Subject: [Elecraft] KSB2 in K2/100 I would like to hear from anyone who has K2/100s with both the unmodified KSB2 and the modified KSB2

Re: [Elecraft] KSB2 in K2/100

2006-06-03 Thread Jack Brindle
Roy; I'm confused. Previous posts indicate you have already made this mod (and the secondary ALC mod) to your KSB2. If so, what have you found? I am contemplating the mod (and possibly the secondary ALC mod) for my K2/100. Thus I am very interested in comments on both mods... On Jun 3,

Re: [Elecraft] KSB2 in K2/100

2006-06-03 Thread Stewart Baker
Roy, As this mod is after the balanced modulator it does nothing to affect the mic gain or improve the VOX operation. 73 Stewart G3RXQ On Sat, 3 Jun 2006 12:41:42 -0400, Roy Morris wrote: I would like to hear from anyone who has K2/100s with both the unmodified KSB2 and the modified KSB2

RE: [Elecraft] KSB2 P1 Wiring Questions

2006-04-05 Thread Don Wilhelm
I just wonder why would a K2 owner want to spend good money for one of those solely to jumper the mic lines. There is a header to do the same thing on the rear of the front panel. Elecraft designed it so you can interface any mic to the K2, but I still believe it is easier to re-wire the mic

RE: [Elecraft] KSB2 P1 Wiring Questions

2006-04-05 Thread Phil Kane
On Wed, 5 Apr 2006 08:22:01 -0400, Don Wilhelm wrote: There is a new item from MFJ that people may find helpful when interfacing a mic to the K2. Its an MFJ-655 mic equalizer/conditioner/ preamp that is supposed to interface any mic to just about any rig. I just wonder why would a K2 owner

[Elecraft] KSB2 P1 Wiring Questions

2006-04-04 Thread n7on
Fellow Elecrafters-- I've successfully completed the KSB2 module for my K2/100 through p. 16 in the manual, front panel PCB component installation. Now it's time for mic configuration, p. 17. Winding toroids, soldering multi-pin connectors and IC's, stuffing capacitors, etc.--those I don't

RE: [Elecraft] KSB2 P1 Wiring Questions

2006-04-04 Thread Don Wilhelm
Folks, My advice on mic wiring - unless you must use the mics with multiple rigs, wire the mic configuration header for the Elecraft mics, and then change the wiring at the mic plug to match the Elecraft configuration. By doing that, it certainly simplifies things a whole lot. I see no sense in

[Elecraft] KSB2 Missing parts

2006-03-25 Thread Stephen John Farthing
Hi, I have just checked my inventory for the KSB2 and seem to be short of all of the components for mounting on the front panel board, i.e. : - P1, c4-c8,q3,rp3,rbias and R13, It seems to me that the parts must all have been in 1 envelope and this was omitted from my kit. Before I contact

RE: [Elecraft] KSB2 Missing parts

2006-03-25 Thread Don Wilhelm
Steve, Unless something has changed at Elecraft packaging recently, those parts are mixed in with all the rest (not packaged in a separate envelope). So if you have sorted all the parts and they are still not present, a note to mailto:[EMAIL PROTECTED] would seem to be in order. Unless of

[Elecraft] KSB2 problem

2006-03-23 Thread Chris Kantarjiev
I recently bought a KSB2 that was advertised here. It's an early release, rev B board, so I picked up a number of update kits and started assembly, slowly and carefully, as Gary advises. I got through it in a couple of evenings. Last night, I installed it in my K2 and got INFO 080. Drat! I was so

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