Date   

Re: Anti Static soldering mats

AG1P Ron
 

I was wondering same thing - From Amazon page -

This is silicone anti static mat, but its just static resistant, If you want ESD protection with your body, you can use it with an anti static wrist band

 

72 - Ron - AG1P

 

From: main@4SQRP.groups.io [mailto:main@4SQRP.groups.io] On Behalf Of Tim McDonough N9PUZ
Sent: Sunday, April 14, 2019 2:54 PM
To: main@4SQRP.groups.io
Subject: Re: [4SQRP] Anti Static soldering mats

 

Any idea if these mats are anti-static as well?

Tim N9PUZ

On 4/14/2019 2:02 PM, Virginia R Smith wrote:

Hi Everybody!

It's Virginia NV5F

I met some of you guys at Ozarkcon and had a great time! I hope I can make it back next year.

During the kit building Joe and I were using these nifty blue silicone soldering mats. I think there will be something on them in April CQ.

Anyway I was asked to provide information on them here. I actually head about them from Bob Heil on Ham Nation. Apparently Heil Sound has started using them. They are used by technicians to repair cell phones and small electronics but they work great for building kits! They are good for ESD and aren't affected by hot solder. They also have magnets that will hold little parts in place until they are needed. The magnets also help the mat stick to a cookie sheet!

And I got them on Amazon!

Kaisi S-140 magnetic insulation soldering mat

They come in several sizes. The S-140 fits perfect in a medium steel cookie sheet from Wal Mart!  And I find that when it gets overrun with leads and solder blobs you can clean it off with a piece of masking tape. And if you need to move your work just pick up the cookie sheet. Also the silicone makes for a nice quiet work surface.

Hope this helps everyone have even more fun building stuff!

Hope to see some of y'all in Dayton.

72
Virginia NV5F

 


Re: Anti Static soldering mats

Tim N9PUZ
 

Any idea if these mats are anti-static as well?

Tim N9PUZ

On 4/14/2019 2:02 PM, Virginia R Smith wrote:

Hi Everybody!

It's Virginia NV5F

I met some of you guys at Ozarkcon and had a great time! I hope I can make it back next year.

During the kit building Joe and I were using these nifty blue silicone soldering mats. I think there will be something on them in April CQ.

Anyway I was asked to provide information on them here. I actually head about them from Bob Heil on Ham Nation. Apparently Heil Sound has started using them. They are used by technicians to repair cell phones and small electronics but they work great for building kits! They are good for ESD and aren't affected by hot solder. They also have magnets that will hold little parts in place until they are needed. The magnets also help the mat stick to a cookie sheet!

And I got them on Amazon!

Kaisi S-140 magnetic insulation soldering mat

They come in several sizes. The S-140 fits perfect in a medium steel cookie sheet from Wal Mart!  And I find that when it gets overrun with leads and solder blobs you can clean it off with a piece of masking tape. And if you need to move your work just pick up the cookie sheet. Also the silicone makes for a nice quiet work surface.

Hope this helps everyone have even more fun building stuff!

Hope to see some of y'all in Dayton.

72
Virginia NV5F



Re: Anti Static soldering mats

tom martin <tecnician@...>
 

You can also get them from www.banggood.com. I got mine from them a year and half ago didn’t think about putting it in a cookie sheet neat idea. The silicone mat ar e a nice addition to the work bench.

Tom
K0amd


On Apr 14, 2019, at 3:12 PM, Virginia R Smith <virginia@...> wrote:

Hi Everybody!

It's Virginia NV5F

I met some of you guys at Ozarkcon and had a great time! I hope I can make it back next year.

During the kit building Joe and I were using these nifty blue silicone soldering mats. I think there will be something on them in April CQ.

Anyway I was asked to provide information on them here. I actually head about them from Bob Heil on Ham Nation. Apparently Heil Sound has started using them. They are used by technicians to repair cell phones and small electronics but they work great for building kits! They are good for ESD and aren't affected by hot solder. They also have magnets that will hold little parts in place until they are needed. The magnets also help the mat stick to a cookie sheet!

And I got them on Amazon!

Kaisi S-140 magnetic insulation soldering mat

They come in several sizes. The S-140 fits perfect in a medium steel cookie sheet from Wal Mart!  And I find that when it gets overrun with leads and solder blobs you can clean it off with a piece of masking tape. And if you need to move your work just pick up the cookie sheet. Also the silicone makes for a nice quiet work surface.

Hope this helps everyone have even more fun building stuff!

Hope to see some of y'all in Dayton.

72
Virginia NV5F


Anti Static soldering mats

Virginia R Smith
 

Hi Everybody!

It's Virginia NV5F

I met some of you guys at Ozarkcon and had a great time! I hope I can make it back next year.

During the kit building Joe and I were using these nifty blue silicone soldering mats. I think there will be something on them in April CQ.

Anyway I was asked to provide information on them here. I actually head about them from Bob Heil on Ham Nation. Apparently Heil Sound has started using them. They are used by technicians to repair cell phones and small electronics but they work great for building kits! They are good for ESD and aren't affected by hot solder. They also have magnets that will hold little parts in place until they are needed. The magnets also help the mat stick to a cookie sheet!

And I got them on Amazon!

Kaisi S-140 magnetic insulation soldering mat

They come in several sizes. The S-140 fits perfect in a medium steel cookie sheet from Wal Mart!  And I find that when it gets overrun with leads and solder blobs you can clean it off with a piece of masking tape. And if you need to move your work just pick up the cookie sheet. Also the silicone makes for a nice quiet work surface.

Hope this helps everyone have even more fun building stuff!

Hope to see some of y'all in Dayton.

72
Virginia NV5F


Re: OzarkCon video

Paul Smith
 

That video is cool tnx
de Paul N0NBD

Sent from Outlook


From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of K9NSE <kevin@...>
Sent: Sunday, April 14, 2019 3:15 PM
To: main@4SQRP.groups.io
Subject: [4SQRP] OzarkCon video
 
Hi folks,

I finally posted the video I took at OzarkCon, you can find it at
https://youtu.be/EZFg_DH-XCk

This was all shot on my mobile phone - yeah, I was that annoying guy
holding up my phone all the time.

This was my first time at OzarkCon, in fact I learned about it one week
before so I was a walk-in on Saturday. What a great group! I'm glad I
attended and OzarkCon 2020 is marked on my calendar already.

72,

Kevin K9NSE






Re: OZARKCON question

Dick Hammond
 

NO


On Sun, Apr 14, 2019 at 2:07 PM Everett Catlin via Groups.Io <everettcatlin=yahoo.com@groups.io> wrote:
Was there a Ballpark price given for the Nouveau 75 QRP AM transceiver?

73
Everett Catlin N5MZX


--
What a great improvement,  Yahoo just didn't work for me.  Dick,  n0tgr


OZARKCON question

Everett Catlin
 

Was there a Ballpark price given for the Nouveau 75 QRP AM transceiver?

73
Everett Catlin N5MZX


4SQRP Second Sunday Sprint - Sun, 04/14/2019 7:00pm-9:00pm #cal-reminder

main@4SQRP.groups.io Calendar <main@...>
 

Reminder:
4SQRP Second Sunday Sprint

When:
Sunday, 14 April 2019
7:00pm to 9:00pm
(GMT-05:00) America/Chicago

Organizer:
John Lonigro

Description:
4SQRP Second Sunday Sprint. See http://www.4sqrp.com/4sqrpOnTheAir.php for details.

View Event


Re: How do I best operate a 4S-Tuner with a Doublet antenna ?

Frank Perkins
 

Hi Bob,
What you have should work fine.
After I read your attached article, I discovered it's not a standard 40 meter  dipole.
Your feedline type alters the dipole design to allow a shorter leg length, and allow multiband performance.
You should get results attaching the feedline do the tuner, and probably some improvement with the 4 to 1 BALUN.
Cheers,
Frank N6CES



On Sat, Apr 13, 2019, 10:03 PM Frank Perkins via Groups.Io <N6CES.r=gmail.com@groups.io> wrote:
Hi,
At only 22ft per leg, sounds like you might have a 30 meter dipole, resonant around 10 mHz.
Adding a 4 to 1 BALUN will take the balanced feedline to balanced 50 ohms to enter your tuner.
Frank N6CES

On Sat, Apr 13, 2019, 7:23 PM Bob KM6BMX <km6bmx@...> wrote:
Hello, 

  I plan to operate my 4S-Tuner with a 40m "Doublet" antenna.  The doublet has two 1-wire legs, 22 feet each, with a 28 foot 2-wire feedline, which I assume is "balanced". (See URLs below for details). 
 
  I have 2 questions. 
 
    I recently re-read the manual, which states the following:  "With an external balun it will also match antennas with balanced feedlines."  However, there are 2 binding posts that share the same internal circuit connection as the output BNC connector ("ANT"). 
  
  Q1:  Can I just connect the "balanced" 2-wire feedline directly to the posts, picking one as the "antenna" and the other as "ground"? 
  
  On a related note, it seems that the 4S-Tuner is geared primarily towards high-impedance antennas, such as EFHW. 
 
  Q2:  How does it perform with an antenna with an impedance close to the nominal 50 ohms? 
  
  Thanks much for your insights!
 
Cheers & 73,
Bob KM6BMX  
--  central AZ
  
========================================
 
    NorCal "Crappie" antenna 
  
NorCal "Doublet" antenna
 
========================================
 


Looking for an Ozark 17 manual

stephen white
 

While at Ozark Con last week I picked up an old Ozark 17 transceiver PCB.  This is the old board the one with only 2 PA transistors and It has no markings on it for parts.  So am trying to find an old build manual for it.  I am not sure there are many around but am hopeful that some one might have one in electronic format. The newer board is totally different and the manual for that one does no really apply at all. If anyone has one I sure would appreciate it.

Steve White
NU0P


OzarkCon video

K9NSE
 

Hi folks,

I finally posted the video I took at OzarkCon, you can find it at https://youtu.be/EZFg_DH-XCk

This was all shot on my mobile phone - yeah, I was that annoying guy holding up my phone all the time.

This was my first time at OzarkCon, in fact I learned about it one week before so I was a walk-in on Saturday. What a great group! I'm glad I attended and OzarkCon 2020 is marked on my calendar already.

72,

Kevin K9NSE


Re: How do I best operate a 4S-Tuner with a Doublet antenna ?

Frank Perkins
 

Hi,
At only 22ft per leg, sounds like you might have a 30 meter dipole, resonant around 10 mHz.
Adding a 4 to 1 BALUN will take the balanced feedline to balanced 50 ohms to enter your tuner.
Frank N6CES

On Sat, Apr 13, 2019, 7:23 PM Bob KM6BMX <km6bmx@...> wrote:
Hello, 

  I plan to operate my 4S-Tuner with a 40m "Doublet" antenna.  The doublet has two 1-wire legs, 22 feet each, with a 28 foot 2-wire feedline, which I assume is "balanced". (See URLs below for details). 
 
  I have 2 questions. 
 
    I recently re-read the manual, which states the following:  "With an external balun it will also match antennas with balanced feedlines."  However, there are 2 binding posts that share the same internal circuit connection as the output BNC connector ("ANT"). 
  
  Q1:  Can I just connect the "balanced" 2-wire feedline directly to the posts, picking one as the "antenna" and the other as "ground"? 
  
  On a related note, it seems that the 4S-Tuner is geared primarily towards high-impedance antennas, such as EFHW. 
 
  Q2:  How does it perform with an antenna with an impedance close to the nominal 50 ohms? 
  
  Thanks much for your insights!
 
Cheers & 73,
Bob KM6BMX  
--  central AZ
  
========================================
 
    NorCal "Crappie" antenna 
  
NorCal "Doublet" antenna
 
========================================
 


Re: it's alive!

Leland Lannoye
 

Buy it anyway!
73, 
Lee, WA9AOE 



Sent from my Verizon, Samsung Galaxy smartphone

-------- Original message --------
From: Dale Holloway <daleholloway@...>
Date: 4/13/19 14:55 (GMT-05:00)
To: main@4SQRP.groups.io
Subject: Re: [4SQRP] it's alive!

In years past when SWL was still alive, I built several of Dave's transceivers. In my opinion, anything designed by Dave Benson is going to be great. I especially like the DSW transceivers and kick myself all the time for selling them a couple of years ago. I'd love to build the Hilltopper 20 but am having a tough time justifying the purchase with a KX2 due to arrive any day now and several other QRP rigs in the shack. This QRP stuff is down-right fun!
--
Dale Holloway, K4EQ
www.k4eq.net


How do I best operate a 4S-Tuner with a Doublet antenna ?

Bob KM6BMX
 

Hello, 

  I plan to operate my 4S-Tuner with a 40m "Doublet" antenna.  The doublet has two 1-wire legs, 22 feet each, with a 28 foot 2-wire feedline, which I assume is "balanced". (See URLs below for details). 
 
  I have 2 questions. 
 
    I recently re-read the manual, which states the following:  "With an external balun it will also match antennas with balanced feedlines."  However, there are 2 binding posts that share the same internal circuit connection as the output BNC connector ("ANT"). 
  
  Q1:  Can I just connect the "balanced" 2-wire feedline directly to the posts, picking one as the "antenna" and the other as "ground"? 
  
  On a related note, it seems that the 4S-Tuner is geared primarily towards high-impedance antennas, such as EFHW. 
 
  Q2:  How does it perform with an antenna with an impedance close to the nominal 50 ohms? 
  
  Thanks much for your insights!
 
Cheers & 73,
Bob KM6BMX  
--  central AZ
  
========================================
 
    NorCal "Crappie" antenna 
  http://www.norcalqrp.org/crappieantenna.htm
  
NorCal "Doublet" antenna
  http://www.norcalqrp.org/norcaldoublet.htm
 
========================================
 


ANNOUNCEMENT - THE GREAT 4SQRP LOGO CONTEST

AG1P Ron
 

GE Everyone,

 

Four State QRP Group has launched a new educational initiative - 4SQRP 4 Kids.  We would like to have a custom logo to use with the program, one that will signify that an education program is a legitimate 4SQRP sanctioned event.  In order to maximize the funding for OzarkCon and this kids program, we thought we would have a contest among our members to come up with an awesome design rather than engaging commercial artists.

 

Here are the rules.  A member or someone in his/her immediate family may submit one or multiple logos. By looking at the logo, it should be evident that it represents a children’s program sanctioned by 4SQRP.  Deadline for submitting entries is 2359 hrs on May 15th.  Submissions can be made by email  to me at  ag1p@... or mailed to:

 

Four State QRP Group

Logo Contest

PO Box 478

Waldport, OR 97394

 

Winner must be willing to transfer ownership to us so the logo can be trademarked to protect our kids program.  The winning entry will receive their choice of a 4SQRP Hilltopper 20 or Hilltopper 40 transceiver, plus a matching 4S-Tuner (Pun intended).  The decision of the panel of judges is final and the winning entry will be announced by June 1st.

 

Any questions should be directed to me at my email address above.

 

72 - Ron - AG1P

QRPcw

Volunteer Corporate Secretary

Volunteer Webmaster

Four State QRP Group

 

 


Re: it's alive!

Dale Holloway, K4EQ
 

In years past when SWL was still alive, I built several of Dave's transceivers. In my opinion, anything designed by Dave Benson is going to be great. I especially like the DSW transceivers and kick myself all the time for selling them a couple of years ago. I'd love to build the Hilltopper 20 but am having a tough time justifying the purchase with a KX2 due to arrive any day now and several other QRP rigs in the shack. This QRP stuff is down-right fun!
--
Dale Holloway, K4EQ
www.k4eq.net


4SQRP Second Sunday Sprint - Sun, 04/14/2019 7:00pm-9:00pm #cal-reminder

main@4SQRP.groups.io Calendar <main@...>
 

Reminder:
4SQRP Second Sunday Sprint

When:
Sunday, 14 April 2019
7:00pm to 9:00pm
(GMT-05:00) America/Chicago

Organizer:
John Lonigro

Description:
4SQRP Second Sunday Sprint. See http://www.4sqrp.com/4sqrpOnTheAir.php for details.

View Event


Re: it's alive!

W6BOW
 

Paul. Congratulations!

FYI in event you want to run the QRP 5W "legal limit" the following courtesy Dave Benson to an earlier query re. reducing Hilltopper output ...

"The most straightforward mod would be to squeeze the turns on L6 more tightly together. It would have the effect of decreasing the power getting through the low pass filter. Without a way of measuring power out, though, you'd be running blind. 

I adhere strictly to the 5 watt limit for the various QRP contests.  For my portable operations, though, there's no such power limit. I'm perfectly content to call 6 watts 'QRP'. 

73- Dave"

73-Don
San Francisco 


On Apr 13, 2019, at 2:53 AM, Walter - K5EST <walter.k5est@...> wrote:

Congrats Paul, but you may get a nose bleed running such High Power :-)
73,
Walter Dufrain - K5EST - QRPcw 




On Fri, Apr 12, 2019 at 2:49 PM Paul Goemans <wa9pwp@...> wrote:
Gang,
  Just completed the Hilltopper 40 kit. Works like a champ! Already “broke it in” with a QSO. For other HT40 owners; how much power output are you getting? I am measuring 7 watts (into a dummy load) at 12.5 V DC power supply! Wow!
I don’t own a spectrum analyzer but the harmonics are minimal so all seems well in the LPF.
 
Paul Goemans WA9PWP
Stoughton, WI


Re: it's alive!

Walter - K5EST
 

Congrats Paul, but you may get a nose bleed running such High Power :-)
73,
Walter Dufrain - K5EST - QRPcw 




On Fri, Apr 12, 2019 at 2:49 PM Paul Goemans <wa9pwp@...> wrote:
Gang,
  Just completed the Hilltopper 40 kit. Works like a champ! Already “broke it in” with a QSO. For other HT40 owners; how much power output are you getting? I am measuring 7 watts (into a dummy load) at 12.5 V DC power supply! Wow!
I don’t own a spectrum analyzer but the harmonics are minimal so all seems well in the LPF.
 
Paul Goemans WA9PWP
Stoughton, WI


it's alive!

Paul Goemans
 

Gang,
  Just completed the Hilltopper 40 kit. Works like a champ! Already “broke it in” with a QSO. For other HT40 owners; how much power output are you getting? I am measuring 7 watts (into a dummy load) at 12.5 V DC power supply! Wow!
I don’t own a spectrum analyzer but the harmonics are minimal so all seems well in the LPF.
 
Paul Goemans WA9PWP
Stoughton, WI