Date   

Re: [Elecraft_K3] Recommend a mic?

Milverton M. Swire
 

Audio Technica model ATR - 1300.
This Mic replaces the ATR - 30 which was a very good Mic and will hold it's own against the Heil PR - 40.
The ATR - 1300 cost a whopping $27.99 at B&H.

73 de Milverton.

Sent from my Verizon Wireless BlackBerry


From: "Sean" <trycw@...>
Date: Thu, 06 May 2010 15:52:59 -0000
To: <Elecraft_K3@...>
Subject: [Elecraft_K3] Recommend a mic?

 

Guys,
Our club just purchase two K3 radio's last year and we didn't
buy any mic's. We are looking for a decently priced mic that
we can use on field day and other activities. We are planning
on using something in conjuction with a foot switch.
What are you guys using for mic's and how do you like them?
thanks,
Sean VE7AYZ


Remote head for K3

patal7l <pmoore44@...>
 

I wonder if anyone has put together a remote head for operating the K3 mobile? It seems like it would be pretty easy, maybe with a PIC processor, to put a minimal set of controls at the driver/operator's fingertips - tuning, band selection, af gain, noise blanker, maybe filters or dsp. Along with a remote speaker and a low-impedance line for the microphone, this would allow strapping the K3 in the trunk and mounting the remote head with Velcro where the driver could easily reach it.

73 de AL7L


Re: [Elecraft_K3] Recommend a mic?

Chris Saunders
 

For contesting and serious operating;

The Yahama CM 500 headset.

For training and public demonstrations; The Elecraft fist mic’

 

Chris

G4ZCS

 


From: Elecraft_K3@... [mailto:Elecraft_K3@...] On Behalf Of Sean
Sent: 06 May 2010 16.53
To: Elecraft_K3@...
Subject: [Elecraft_K3] Recommend a mic?

 

 

Guys,
Our club just purchase two K3 radio's last year and we didn't
buy any mic's. We are looking for a decently priced mic that
we can use on field day and other activities. We are planning
on using something in conjuction with a foot switch.
What are you guys using for mic's and how do you like them?
thanks,
Sean VE7AYZ

No virus found in this incoming message.
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Re: [Elecraft_K3] Recommend a mic?

Hank Kohl
 

Yamaha CM-500 headset with boom microphone.

Hank     K8DD



On Thu, May 6, 2010 at 11:52 AM, Sean <trycw@...> wrote:
Guys,
Our club just purchase two  K3 radio's last year and we didn't
buy any mic's.  We are looking for a decently priced mic that
we can use on field day and other activities.  We are planning
on using something in conjuction with a foot switch.
What are you guys using for mic's and how do you like them?
thanks,
Sean VE7AYZ



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--
"I knew that God put me on this earth to be on the radio."    Ed Bradley

"Me too!"    K8DD
-


Recommend a mic?

Sean <trycw@...>
 

Guys,
Our club just purchase two K3 radio's last year and we didn't
buy any mic's. We are looking for a decently priced mic that
we can use on field day and other activities. We are planning
on using something in conjuction with a foot switch.
What are you guys using for mic's and how do you like them?
thanks,
Sean VE7AYZ


K3/100 3974 joining 2558

KU_5Q <ku5q.tx@...>
 

All happy here at KU5Q.

The best.

Yes, this a very nontechnical post, but what else can be said that hasn't been?

Thank you Elecraft.


Re: [Elecraft_K3] Re: PK3K and PR6 question

Dale, K9VUJ
 

Ok, thanks Eric.

73

Dale, K9VUJ

On 05, May 2010, at 17:00, wa6hhq wrote:



Both the P3 and PR6 can be used at the same time. They connect to different connectors on the KXV3 (and KXV3a).

We designed the PR6 to mount with the Male-Male BNC connectors to the rear of the K3. Its quite strong and we have had no reports of problems from the field. (The PR6 is not very heavy.) Of course, if you are concerned about this you can use short BNC cables instead.

73, Eric WA6HHQ
----

--- In Elecraft_K3@..., "southdaleus" <dalej2@...> wrote:

If I have the PK3K panadapter and the PR3 six meter preamp will I be able to use the PK3K and the PR6 together on six meters or will I have to switch off the PR6 to use the PK3K?

Also, how mechanically stable is the PR6 using the M to M BNC connectors? It appears to me there might be some stress applied to either the radio connections or the PR6 connections with regard to added weight of the additional BNC from the PK3K.

Dale, K9VUJ



------------------------------------

Yahoo! Groups Links



Re: PK3K and PR6 question

Eric Swartz - WA6HHQ, Elecraft
 

Both the P3 and PR6 can be used at the same time. They connect to different connectors on the KXV3 (and KXV3a).

We designed the PR6 to mount with the Male-Male BNC connectors to the rear of the K3. Its quite strong and we have had no reports of problems from the field. (The PR6 is not very heavy.) Of course, if you are concerned about this you can use short BNC cables instead.

73, Eric WA6HHQ
----

--- In Elecraft_K3@..., "southdaleus" <dalej2@...> wrote:

If I have the PK3K panadapter and the PR3 six meter preamp will I be able to use the PK3K and the PR6 together on six meters or will I have to switch off the PR6 to use the PK3K?

Also, how mechanically stable is the PR6 using the M to M BNC connectors? It appears to me there might be some stress applied to either the radio connections or the PR6 connections with regard to added weight of the additional BNC from the PK3K.

Dale, K9VUJ


Re: K3 and Dayton

Eric Swartz - WA6HHQ, Elecraft
 

Our new products showing at Dayton this year will be the P3 Panadapter, the KPA500 along with the K144XV internal 2 m module for the K3.

We'll certainly be available at Dayton to help you decide on your K3 configuration. Both Wayne and myself, along with several other Elecraft engineers and a number of our customers, will be at the booth ready to answer questions.

See you all there!

73, Eric WA6HHQ
----

--- In Elecraft_K3@..., "Tom" <t_biskit@...> wrote:

Will there be any surprise accessories to be revealed at Dayton next week?

Also, after nearly burning a proverbial hole in the wallet for the last year, I plan to seriously look and most likely order mine while I'm there. Will there be Elecraft folks to talk to that will help me build and most importantly filter my transceiver based on my requirements?

CU at Dayton es vy 73!
Tom Hybiske, K3GM


PK3K and PR6 question

Dale, K9VUJ
 

If I have the PK3K panadapter and the PR3 six meter preamp will I be able to use the PK3K and the PR6 together on six meters or will I have to switch off the PR6 to use the PK3K?

Also, how mechanically stable is the PR6 using the M to M BNC connectors? It appears to me there might be some stress applied to either the radio connections or the PR6 connections with regard to added weight of the additional BNC from the PK3K.

Dale, K9VUJ


K3 and Dayton

Tom <t_biskit@...>
 

Will there be any surprise accessories to be revealed at Dayton next week?

Also, after nearly burning a proverbial hole in the wallet for the last year, I plan to seriously look and most likely order mine while I'm there. Will there be Elecraft folks to talk to that will help me build and most importantly filter my transceiver based on my requirements?

CU at Dayton es vy 73!
Tom Hybiske, K3GM


Re: AGC Settings

aburkefl <aburkefl@...>
 

Thanks Bob. That's more along the lines of what I had in mind when I asked my question. I could see the appropriate parameters in the CONFIG but didn't understand what every one of them meant.

Art - N4PJ

--- In Elecraft_K3@..., "Rob Sherwood" <rob@...> wrote:

You might want to clarify that when set to 15, there is no AGC slope. In other words, once the AGC threshold has been exceeded, the audio will not get louder as the signal gets stronger. I happen to run a K3 that way.

Another setting is AGC threshold. As a rule of thumb, here is what I like, realizing there is no single setting optimum for 160 / 80 meters vs 20 / 15 meters, due to the vastly different atmospheric noise levels. (I am not even talking about local line noise or the like, just band noise.) No preamp: 2.5 uV is my choice. With preamp, 1 uV is my choice. Nothing magic here, and I do my operating at a very quiet rural QTH, a lot of it on 20 and 15 meters.

For 160 meter operation with an Orion II, for example, I had to set the threshold much higher than this. With that radio and factory settings, I could punch in the 6 dB pad, or even the 12 dB pad, and the band noise would not drop at all since it was far above the AGC threshold. Once set properly for 160 meters, punching in the 6 dB pad would drop the audio several dB. That worked out best for me during a 160 contest.

Some people like an AGC slope rather than flat, and I think the current default factory default is 12. Just play with it, and the threshold, and see what works for you. A significant slope will make the radio sound unusually quiet on the higher bands, but when a 0.5 uV signal is being copied, it will likely be necessary to turn up the audio gain. Not my choice, but again just personal preference.

What I really don't like is for the AGC to fill in any short duration pause in transmission with band noise. If a 200 msec pause give me full receiver gain (and noise), that is fatiguing to me. Others really like a very fast AGC, and that depends on conditions and what you are doing at a given time: contest, DX, rag chew, etc.

73,
Rob, NC0B





"aburkefl" <aburkefl@...> 5/3/2010 5:32 AM >>>
Tnx much - I'll try those settings for a while.

Art - N4PJ

--- In Elecraft_K3@..., "ab2tc" <ab2tc@> wrote:

Hi,

You can prevent that by setting the slope to maximum, 15. I have the threshold set the highest, also, 8. It's still plenty low so on 20m and below, unless the band is unusually quiet, I need to turn the RF gain down some to quiet the receiver.

AB2TC - Knut

--- In Elecraft_K3@..., "aburkefl" <aburkefl@> wrote:

I don't understand much about the AGC settings in the K3, but I do recognize too loud when I hear it!

In the IN7QPNE contest yesterday (the 7-land QSO Party, Indiana QSO Party and the New England QSO Party - how's that for a mouthful - withe the MARAC County Party thrown in!) signals at time seemed abnormally loud - almost as if they needed attenuation. I suspect the settings for the AGC are at fault.

What are some recommended settings for "normal" operation, in regard to slope, threshold, decay, etc.?

Art - N4PJ




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Firmware download was accomplished

Joseph LaVoie
 

Please disregard my previous request for assistance in downloading firmware. Elecraft just emailed a checklist and I discovered that I needed to lower my baud rate from my computer to the K3. The latest firmware is now installed.

Thanks...
Joe/AB7DP


Re: [Elecraft_K3] Help with firmware download

Dick Dievendorff <dieven@...>
 

This error can occur  when the wrong COM port is chosen.  The indication is that the device you have chosen echoes everything sent to it.

 

Verify that you have selected the correct COM port on the K3 Utility “port” tab. If there are several available, try a different one.

 

The K3 Utility Help has some troubleshooting pages that go through this.

 

I bet you’re trying to load firmware into your computer’s modem.

 

Dick, K6KR

 

From: Elecraft_K3@... [mailto:Elecraft_K3@...] On Behalf Of jcl7692
Sent: Monday, May 03, 2010 3:32 PM
To: Elecraft_K3@...
Subject: [Elecraft_K3] Help with firmware download

 

 

Hi to the group.

I'm new Elecraft owner having recently bought a used K3/10 from a local ham. I'm having some trouble trying to update the firmware that was on the radio to the newest version. The original owner told me that since he got the radio he has never updated the firmware.

I was able to successfully install the K3 Utility and copy the firmware files into my computer. The problem came when the utility program tried to write the data into the K3. Here is the error log:

14:56:15 Ready
14:56:15 K3 boot loader is ready for MCU firmware load. COM3 RS-232 speed 38400 bps
15:02:55 Sending firmware file hmcu0379.hex to MCU
15:02:55 Send MCU firmware failed at load address x0800
15:02:55 MCU firmware load failed

Anyone who can help me, I would appreciate it...

Joe LaVoie/AB7DP


Help with firmware download

Joseph LaVoie
 

Hi to the group.

I'm new Elecraft owner having recently bought a used K3/10 from a local ham. I'm having some trouble trying to update the firmware that was on the radio to the newest version. The original owner told me that since he got the radio he has never updated the firmware.

I was able to successfully install the K3 Utility and copy the firmware files into my computer. The problem came when the utility program tried to write the data into the K3. Here is the error log:

14:56:15 Ready
14:56:15 K3 boot loader is ready for MCU firmware load. COM3 RS-232 speed 38400 bps
15:02:55 Sending firmware file hmcu0379.hex to MCU
15:02:55 Send MCU firmware failed at load address x0800
15:02:55 MCU firmware load failed

Anyone who can help me, I would appreciate it...

Joe LaVoie/AB7DP


Re: AGC Settings

ab2tc
 

All agreed. I used the default slope of 12 for maybe one day until a strong signal made my ears hurt and quickly decided I wanted no slope, period. I think the threshold levels you mention is close to what you get with the highest setting, 8.

AB2TC - Knut

--- In Elecraft_K3@..., "Rob Sherwood" <rob@...> wrote:

You might want to clarify that when set to 15, there is no AGC slope. In other words, once the AGC threshold has been exceeded, the audio will not get louder as the signal gets stronger. I happen to run a K3 that way.

Another setting is AGC threshold. As a rule of thumb, here is what I like, realizing there is no single setting optimum for 160 / 80 meters vs 20 / 15 meters, due to the vastly different atmospheric noise levels. (I am not even talking about local line noise or the like, just band noise.) No preamp: 2.5 uV is my choice. With preamp, 1 uV is my choice. Nothing magic here, and I do my operating at a very quiet rural QTH, a lot of it on 20 and 15 meters.

For 160 meter operation with an Orion II, for example, I had to set the threshold much higher than this. With that radio and factory settings, I could punch in the 6 dB pad, or even the 12 dB pad, and the band noise would not drop at all since it was far above the AGC threshold. Once set properly for 160 meters, punching in the 6 dB pad would drop the audio several dB. That worked out best for me during a 160 contest.

Some people like an AGC slope rather than flat, and I think the current default factory default is 12. Just play with it, and the threshold, and see what works for you. A significant slope will make the radio sound unusually quiet on the higher bands, but when a 0.5 uV signal is being copied, it will likely be necessary to turn up the audio gain. Not my choice, but again just personal preference.

What I really don't like is for the AGC to fill in any short duration pause in transmission with band noise. If a 200 msec pause give me full receiver gain (and noise), that is fatiguing to me. Others really like a very fast AGC, and that depends on conditions and what you are doing at a given time: contest, DX, rag chew, etc.

73,
Rob, NC0B





"aburkefl" <aburkefl@...> 5/3/2010 5:32 AM >>>
Tnx much - I'll try those settings for a while.

Art - N4PJ

--- In Elecraft_K3@..., "ab2tc" <ab2tc@> wrote:

Hi,

You can prevent that by setting the slope to maximum, 15. I have the threshold set the highest, also, 8. It's still plenty low so on 20m and below, unless the band is unusually quiet, I need to turn the RF gain down some to quiet the receiver.

AB2TC - Knut

--- In Elecraft_K3@..., "aburkefl" <aburkefl@> wrote:

I don't understand much about the AGC settings in the K3, but I do recognize too loud when I hear it!

In the IN7QPNE contest yesterday (the 7-land QSO Party, Indiana QSO Party and the New England QSO Party - how's that for a mouthful - withe the MARAC County Party thrown in!) signals at time seemed abnormally loud - almost as if they needed attenuation. I suspect the settings for the AGC are at fault.

What are some recommended settings for "normal" operation, in regard to slope, threshold, decay, etc.?

Art - N4PJ




If this email is spam, report it here:
http://www.OnlyMyEmail.com/ReportSpam


[Elecraft_K3] Re: AGC Settings

Rob Sherwood
 


Re: AGC Settings

aburkefl <aburkefl@...>
 

Tnx much - I'll try those settings for a while.

Art - N4PJ

--- In Elecraft_K3@..., "ab2tc" <ab2tc@...> wrote:

Hi,

You can prevent that by setting the slope to maximum, 15. I have the threshold set the highest, also, 8. It's still plenty low so on 20m and below, unless the band is unusually quiet, I need to turn the RF gain down some to quiet the receiver.

AB2TC - Knut

--- In Elecraft_K3@..., "aburkefl" <aburkefl@> wrote:

I don't understand much about the AGC settings in the K3, but I do recognize too loud when I hear it!

In the IN7QPNE contest yesterday (the 7-land QSO Party, Indiana QSO Party and the New England QSO Party - how's that for a mouthful - withe the MARAC County Party thrown in!) signals at time seemed abnormally loud - almost as if they needed attenuation. I suspect the settings for the AGC are at fault.

What are some recommended settings for "normal" operation, in regard to slope, threshold, decay, etc.?

Art - N4PJ


Re: [Elecraft_K3] Re: K3 and Amplifier Problem

Bob McGraw - K4TAX
 

Franz:

I would determine the worst case band. Make an electrical 1/4 wavelength
coax jumper. You can use either 50 ohm or 75 ohm coax and do take into
consideration the velocity factor of the specific type coax you are
using. Coil it conveniently as you wish and use it between the
transceiver and the amp.

It may be necessary to put a series of ferrite donuts, probably 10 to 20
of them, over the outside of the cable. This serves as a RF choke and
will reduce or prevent RF from flowing on the outside of the coax back to
the transceiver. It may be that RF on the outside of the coax is
creating a condition that is giving false information to the SWR
protection and shutdown circuit of the K-3..3

73
Bob K4TAX

Is there a recommendation regarding the specific length?
Thanks and 73s
Franz, DK1II

--- In Elecraft_K3@..., "Bob McGraw - K4TAX" <RMcGraw@...>
wrote:

Since I recall the original post and concerns listed a couple of things
on the output of the K-3, being the MFJ device and then the amp, I
suspect a SWR issue that is presented to the K-3. With any grounded
grid amp, the amp tuning will affect the input Z of the amp. Thus the
load on the exciter is changing with tuning of the amp.

In the case of Collins and their 30L-1 amp, they strongly suggest a
specific length of coax between the amp and the exciter. I've found
that this does help on more modern amps that I've repaired. This is
specially true for amps that do not have a tuned input network.

73
Bob, K4TAX


----- Original Message -----
From: Mike Rodgers
To: Elecraft_K3@...
Sent: Wednesday, April 28, 2010 9:03 AM
Subject: [Elecraft_K3] K3 and Amplifier Problem



Don't know about that particular problem but I have experienced some
weird things happening on 15 only
Mike R

Sent from my mobile communicator


Re: AGC Settings

ab2tc
 

Hi,

You can prevent that by setting the slope to maximum, 15. I have the threshold set the highest, also, 8. It's still plenty low so on 20m and below, unless the band is unusually quiet, I need to turn the RF gain down some to quiet the receiver.

AB2TC - Knut

--- In Elecraft_K3@..., "aburkefl" <aburkefl@...> wrote:

I don't understand much about the AGC settings in the K3, but I do recognize too loud when I hear it!

In the IN7QPNE contest yesterday (the 7-land QSO Party, Indiana QSO Party and the New England QSO Party - how's that for a mouthful - withe the MARAC County Party thrown in!) signals at time seemed abnormally loud - almost as if they needed attenuation. I suspect the settings for the AGC are at fault.

What are some recommended settings for "normal" operation, in regard to slope, threshold, decay, etc.?

Art - N4PJ