Date   

Tonight's DMR net

Robert
 


The forecast is for rain and hail during net time at my QTH tonight, it is very probable that my Satellite internet connection will fail or at least be highly compromised during our scheduled net time,  I will try to run  the net but if my connection fails someone else will have to pick up the net  control role for tonight's net.

Thanks 
Bert 
N0YJ 


Sent from my Verizon, Samsung Galaxy Tablet


Wednesday Evening 40 and 80 meter Nets - Wed, 04/17/2019 8:00pm-9:00pm #cal-reminder

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

Reminder:
Wednesday Evening 40 and 80 meter Nets

When:
Wednesday, 17 April 2019
8:00pm to 9:00pm
(GMT-05:00) America/Chicago

Where:
40 and 80 Meters

Organizer:
jomatlock@...

Description:
The 40 Meter Net will be at 8:00 pm central time  on 7.122 +-. QRM
NCS will be Bill KV6Z.

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central Time Wednesday). 
The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operators are Johnny AC0BQ or Paul N0NBD.

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 0300 UTC (9:00PM Central Time Wednesday/)
Four States QRP has a Brandmeister DMR Talk Group (TG31654). Join us to discuss QRP, ask questions, or just ragchew. The Wednesday net is a directed net  but any other time you may use the Talk Group to chat with other QRPers.
Net Control operator is Bert NØYJ.

View Event


Re: OzarkCon video

K9NSE
 

Thank you Don for your kind words. In the spirit of amateur radio this was definitely an amateur video. Glad you liked it.

72 and have fun in Thailand!

Kevin K9NSE


Re: W5LFL, ham astronaut passes

Dale Holloway, K4EQ
 

I remember well Garriott's 1983 shuttle flight. Our family lived in Honduras at the time and I marveled at the possibility of hearing the space shuttle. One day I was doing something outside the house and also monitoring his frequency on my 2m HT. Suddenly, the squelch broke and it sounded as if the guy talking was standing next to me. Sure enough, it was W5LFL. That was a thrill!
--
Dale Holloway, K4EQ
www.k4eq.net


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

Gwen Patton
 

I've got an Emtech ZM-2 I built about a decade ago. Still works like a champ. It'll frequently tune what my Elecraft T1 won't. I needed to use it for my Cricket 30 because the antenna was really lousy, and the Cricket wasn't putting out enough power for the T1. I might get one of those QRPGuys multi-tuners, though, that looks sharp. I've got a lot of their other gear.

On Tue, Apr 16, 2019 at 11:00 PM Jeff Logullo N0̸MII <jeff@...> wrote:
Speaking of magic/fun, and antenna experimentation, and balanced wire feedline... you might consider adding a z-match tuner to your arsenal of ham goodies. Something like:


Both tuners are great designs, but are targeted at different types of antennas. A tuner like this one may be a better choice for your balanced feedline.

Try both -- experiment! WSPR and/or the RBN can help you evaluate how things are working. Have fun!

Jeff N0̸MII 


On Apr 16, 2019, at 9:34 PM, jleahy00 via Groups.Io <jleahy00@...> wrote:

I have been using WSPR for a couple of years now to check the effectiveness of my antennas for TX & RX.  In just a few minutes you can see just how your system is working, make some changes and re-test.  

On Apr 16, 2019, at 16:37, Frank Perkins <N6CES.r@...> wrote:

Hi Bob,
Antennas are the magic part of ham radio.
Your 4sqrp tuner is a great one, basically designed for use with a "random length wire" antenna and a counterpoise wire.



--
Jeff N0̷MII



--

-+-+-+-+-
Jenny Everywhere's Infinite: Quark Time
http://quarktime.net


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

Jeff Logullo N0̸MII
 

Speaking of magic/fun, and antenna experimentation, and balanced wire feedline... you might consider adding a z-match tuner to your arsenal of ham goodies. Something like:


Both tuners are great designs, but are targeted at different types of antennas. A tuner like this one may be a better choice for your balanced feedline.

Try both -- experiment! WSPR and/or the RBN can help you evaluate how things are working. Have fun!

Jeff N0̸MII 


On Apr 16, 2019, at 9:34 PM, jleahy00 via Groups.Io <jleahy00@...> wrote:

I have been using WSPR for a couple of years now to check the effectiveness of my antennas for TX & RX.  In just a few minutes you can see just how your system is working, make some changes and re-test.  

On Apr 16, 2019, at 16:37, Frank Perkins <N6CES.r@...> wrote:

Hi Bob,
Antennas are the magic part of ham radio.
Your 4sqrp tuner is a great one, basically designed for use with a "random length wire" antenna and a counterpoise wire.



--
Jeff N0̷MII


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

John - KK4ITX
 

Bob,

I have been using WSPR for a couple of years now to check the effectiveness of my antennas for TX & RX.  In just a few minutes you can see just how your system is working, make some changes and re-test.  

I also check WSPR almost daily for real propagation in real time....... not a prediction but current condx and a map showing actual current results for any band.

WSPR (IPad/IPhone) APP or WSPRnet (computer software) are free offerings.  I am currently working on a presentation on this subject for a local club, if it all comes together I’ll share it with the group. (Use Google to find them).

As many, many have said before us, the antenna (including the feed line) is the most important part of your system....... almost 1400 miles between us, I was at 5w on an Inverted V and SHE was running 2w into a 3 element beam during not so great band condx.

Love to play with wire !

John
KK4ITX 

If you need a parachute and don't have one you probably won't need one again.

On Apr 16, 2019, at 16:37, Frank Perkins <N6CES.r@...> wrote:

Hi Bob,
Antennas are the magic part of ham radio.
Your 4sqrp tuner is a great one, basically designed for use with a "random length wire" antenna and a counterpoise wire.
For portable use, the antenna could be anywhere from 20 to 80 feet, and the counterpoise from 4 to 15 feet.
The antenna wire on the red binding post and counterpoise on the black post.
However, you are using a dipole antenna with a balanced feedline.
I would first try it connected to the red & black binding posts, and see what results you get (signal strength and direction determined by call zones received). Then switch the feedline wires and test again. Then twist both feedline wires together onto the red post and a 10 ft counterpoise wire on the black post.
Compare data. Which gave best results?
A typical dipole at about 40 ft off the ground running North and South will have the best coverage to the East and West. If only 10 to 12 feet high, it will be NVIS and work best on 40, 80, & 160, and give omnidirectional 300-500 mile range.
Later, you can build a little 1:1 and 4:1 BALUN to try between the feedline pair and the posts.
That's the fun of antennas.
I don't think you mentioned what type of rig you have, but if it's portable, take it to a park with a spool of lightweight wire.
Take a fishing pole with a 1-1/2oz sinker, sling it into a tree, pull the end of the antenna wire into the tree and have a blast!
Cheers,
Frank N6CES

On Tue, Apr 16, 2019, 6:58 AM Bob KM6BMX <km6bmx@...> wrote:
Hi all,

  Thanks for the replies.

  Frank, you mentioned a 4:1 balun. If I am connecting the 2-wire feedline directly to the tuner binding posts, how do I make / find a "bal-bal"? Or, are you suggesting that I use an actual 4:1 balun (2-wire feedline on one side, coax connector on the other side, and multiple turns of coax in between) and hook that to the coax antenna connector on the tuner?

  If I understand correctly, at 40m the Doublet will present roughly 50 ohms to the tuner. Since I can dial out most of the inductance and capacitance with the 3 knobs, I should be able to match with low SWR fairly quickly. 

  At harmonic shorter bands (20m, 15m, 10m), the Doublet will likely present with a higher impedance. Then, I can dial in increasing amounts of inductance and capacitance to match the antenna to the transceiver operating at the higher frequencies.

  I think that the tuner will really shine with some of other HF bands (30m, 17m, 12m). At those frequencies,  the Doublet will truly present as a "random wire".

  As you all say, I will know when I try it. Now that I have a feasible and highly portable antenna and tuner, I need to find a small HF transceiver to actually operate. Perhaps I can bring it to a Field Day or other operating event somewhere in central AZ and ask if I can try it with one of their rigs. 

  For my own rig, I am waiting until Hans Summer releases his QSX multi-mode all-HF band QRP transceiver. I Hopefully, his QRP Labs ( http://www.qrp-labs.com ) will make those available sometime this summer of 2019. 

  I am not yet CW capable and won't have time to learn Morse code anytime soon. Thus, I need a rig that supports SSB and maybe even some of the digital modes ( RTTY, PSK31, Olivia, FT-x, etc.)

Cheers & 73,
Bob KM6BMX
--  central AZ


Re: W5LFL, ham astronaut passes

 

Sorry to hear that.

I recall that his operation from Columbia was a rather big deal and even
got a nice full page article in the Washington County (Kansas) News. I
was a newly licensed Novice so I couldn't take part and I didn't have a
2m radio at the time, but I remember the QST cover and article of Owen
in W5LFL. Several years later a job took me to Enid, OK, Owen's home
town where the main esat/west highway is named Owen K. Garriott.
Nothing special, just a personal memory.

God Speed, Owen, 73 es R.I.P., OM.

72, Nate

--

"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

Web: http://www.n0nb.us GPG key: D55A8819 GitHub: N0NB


Re: W5LFL, ham astronaut passes

W6BOW
 

Dang sad news.

image1.jpeg



W5LFL, ham astronaut passes

Jerry Brown
 


Re: OzarkCon

Walter - K5EST
 

Glad you could give us the great presentation. I think folks in the audience were impressed at the software and depth of use. Definitely a break-out session would be in order.

Thank you, Barry, great to have you at Ozarkcon.....73,

Walter Dufrain - K5EST - QRPcw 




On Tue, Apr 16, 2019 at 5:40 PM WØIY <barry.w0iy@...> wrote:
All,

I want to say I had a great time at OzarkCon!  Everyone I talked to was
very friendly and interesting.

I hope you all enjoyed the presentation on KiCad. There is a lot to
learn and I really had to go through it rather quickly. This really was
just a Show and Tell to give you an idea of the features and power of
the tool. There are many more features which I did not discuss and
probably questions from you which didn't get asked or answered. I'm just
a KiCad user and disciple spreading the word.

If you want to know more, here are a few links you will find of interest.

==========  KiCad Forums  ============

https://forum.kicad.info/ This is a great place to get help. Lots of new
users showing up on a daily basis. If you have a question, it may have
been answered, so please search before posting. You will need to create
an account and login.


==========  YouTube Videos =============

The current version of KiCad is V5.x   and many of the videos on YouTube
are older V3 or V4.  If the video is dated before about June 2018, the
info MAY NOT BE ACCURATE. There are still good videos for basic things
that are a year or 2 old.

I recommend 2 particular presenters, you can search for them by name and
see what they have.

Chris Gammel https://www.youtube.com/watch?v=iTyi3RvNoB0

There are also a number of videos made by Shawn Hymel for Digi-Key.
https://www.youtube.com/results?search_query=digikey+kicad

Thanks again for inviting me to OzarkCon and I hope I was able to
contribute to the event and the group!

Barry WØIY





Re: OzarkCon

Johnny AC0BQ
 

Thank you Barry for great presentation.
I was quite amazed at what Ki-Cad could do, even though my lap top had other idea's.

We may consider some additional smaller seminars next year, but right now were just try to breathe a sign of relief! 

Thanks for the recommendations of the other possible speakers.

72 
and Thanks again 
Johnny AC0BQ

Were glad you had fun  



On Tue, Apr 16, 2019 at 5:40 PM WØIY <barry.w0iy@...> wrote:
All,

I want to say I had a great time at OzarkCon!  Everyone I talked to was
very friendly and interesting.

I hope you all enjoyed the presentation on KiCad. There is a lot to
learn and I really had to go through it rather quickly. This really was
just a Show and Tell to give you an idea of the features and power of
the tool. There are many more features which I did not discuss and
probably questions from you which didn't get asked or answered. I'm just
a KiCad user and disciple spreading the word.

If you want to know more, here are a few links you will find of interest.

==========  KiCad Forums  ============

https://forum.kicad.info/ This is a great place to get help. Lots of new
users showing up on a daily basis. If you have a question, it may have
been answered, so please search before posting. You will need to create
an account and login.


==========  YouTube Videos =============

The current version of KiCad is V5.x   and many of the videos on YouTube
are older V3 or V4.  If the video is dated before about June 2018, the
info MAY NOT BE ACCURATE. There are still good videos for basic things
that are a year or 2 old.

I recommend 2 particular presenters, you can search for them by name and
see what they have.

Chris Gammel https://www.youtube.com/watch?v=iTyi3RvNoB0

There are also a number of videos made by Shawn Hymel for Digi-Key.
https://www.youtube.com/results?search_query=digikey+kicad

Thanks again for inviting me to OzarkCon and I hope I was able to
contribute to the event and the group!

Barry WØIY






--
QRP....."More smiles per Watt"
72
JOHNNY AC0BQ  ..



Wednesday Evening 40 and 80 meter Nets - Wed, 04/17/2019 8:00pm-9:00pm #cal-reminder

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

Reminder:
Wednesday Evening 40 and 80 meter Nets

When:
Wednesday, 17 April 2019
8:00pm to 9:00pm
(GMT-05:00) America/Chicago

Where:
40 and 80 Meters

Organizer:
jomatlock@...

Description:
The 40 Meter Net will be at 8:00 pm central time  on 7.122 +-. QRM
NCS will be Bill KV6Z.

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central Time Wednesday). 
The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operators are Johnny AC0BQ or Paul N0NBD.

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 0300 UTC (9:00PM Central Time Wednesday/)
Four States QRP has a Brandmeister DMR Talk Group (TG31654). Join us to discuss QRP, ask questions, or just ragchew. The Wednesday net is a directed net  but any other time you may use the Talk Group to chat with other QRPers.
Net Control operator is Bert NØYJ.

View Event


Re: OzarkCon video

W6BOW
 

Kevin K9NSE,

Great job! A true labor of love and respect for the hobby. Your arms must still be aching after all that rock steady "Armstronging" of your phone/ camera Kevin.

Hope to make OzarCon sometime. Your work gave us a next best thing experience!

Gratefully,

Don - W6BOW
San Francisco CA. USA

P.S. I'm presently on vacation in the town of Lampang in Thailand. Small world indeed.

On Apr 14, 2019, at 10:15 PM, K9NSE <kevin@...> wrote:

Kevin K9NSE


OzarkCon

WØIY <barry.w0iy@...>
 

All,

I want to say I had a great time at OzarkCon!  Everyone I talked to was very friendly and interesting.

I hope you all enjoyed the presentation on KiCad. There is a lot to learn and I really had to go through it rather quickly. This really was just a Show and Tell to give you an idea of the features and power of the tool. There are many more features which I did not discuss and probably questions from you which didn't get asked or answered. I'm just a KiCad user and disciple spreading the word.

If you want to know more, here are a few links you will find of interest.

==========  KiCad Forums  ============

https://forum.kicad.info/ This is a great place to get help. Lots of new users showing up on a daily basis. If you have a question, it may have been answered, so please search before posting. You will need to create an account and login.


==========  YouTube Videos =============

The current version of KiCad is V5.x   and many of the videos on YouTube are older V3 or V4.  If the video is dated before about June 2018, the info MAY NOT BE ACCURATE. There are still good videos for basic things that are a year or 2 old.

I recommend 2 particular presenters, you can search for them by name and see what they have.

Chris Gammel https://www.youtube.com/watch?v=iTyi3RvNoB0

There are also a number of videos made by Shawn Hymel for Digi-Key.
https://www.youtube.com/results?search_query=digikey+kicad

Thanks again for inviting me to OzarkCon and I hope I was able to contribute to the event and the group!

Barry WØIY


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

Frank Perkins
 

Hi Bob,
Antennas are the magic part of ham radio.
Your 4sqrp tuner is a great one, basically designed for use with a "random length wire" antenna and a counterpoise wire.
For portable use, the antenna could be anywhere from 20 to 80 feet, and the counterpoise from 4 to 15 feet.
The antenna wire on the red binding post and counterpoise on the black post.
However, you are using a dipole antenna with a balanced feedline.
I would first try it connected to the red & black binding posts, and see what results you get (signal strength and direction determined by call zones received). Then switch the feedline wires and test again. Then twist both feedline wires together onto the red post and a 10 ft counterpoise wire on the black post.
Compare data. Which gave best results?
A typical dipole at about 40 ft off the ground running North and South will have the best coverage to the East and West. If only 10 to 12 feet high, it will be NVIS and work best on 40, 80, & 160, and give omnidirectional 300-500 mile range.
Later, you can build a little 1:1 and 4:1 BALUN to try between the feedline pair and the posts.
That's the fun of antennas.
I don't think you mentioned what type of rig you have, but if it's portable, take it to a park with a spool of lightweight wire.
Take a fishing pole with a 1-1/2oz sinker, sling it into a tree, pull the end of the antenna wire into the tree and have a blast!
Cheers,
Frank N6CES

On Tue, Apr 16, 2019, 6:58 AM Bob KM6BMX <km6bmx@...> wrote:
Hi all,

  Thanks for the replies.

  Frank, you mentioned a 4:1 balun. If I am connecting the 2-wire feedline directly to the tuner binding posts, how do I make / find a "bal-bal"? Or, are you suggesting that I use an actual 4:1 balun (2-wire feedline on one side, coax connector on the other side, and multiple turns of coax in between) and hook that to the coax antenna connector on the tuner?

  If I understand correctly, at 40m the Doublet will present roughly 50 ohms to the tuner. Since I can dial out most of the inductance and capacitance with the 3 knobs, I should be able to match with low SWR fairly quickly. 

  At harmonic shorter bands (20m, 15m, 10m), the Doublet will likely present with a higher impedance. Then, I can dial in increasing amounts of inductance and capacitance to match the antenna to the transceiver operating at the higher frequencies.

  I think that the tuner will really shine with some of other HF bands (30m, 17m, 12m). At those frequencies,  the Doublet will truly present as a "random wire".

  As you all say, I will know when I try it. Now that I have a feasible and highly portable antenna and tuner, I need to find a small HF transceiver to actually operate. Perhaps I can bring it to a Field Day or other operating event somewhere in central AZ and ask if I can try it with one of their rigs. 

  For my own rig, I am waiting until Hans Summer releases his QSX multi-mode all-HF band QRP transceiver. I Hopefully, his QRP Labs ( http://www.qrp-labs.com ) will make those available sometime this summer of 2019. 

  I am not yet CW capable and won't have time to learn Morse code anytime soon. Thus, I need a rig that supports SSB and maybe even some of the digital modes ( RTTY, PSK31, Olivia, FT-x, etc.)

Cheers & 73,
Bob KM6BMX
--  central AZ


Re: Eagle Parts Library for QRP projects?

Nick Kennedy <kennnick@...>
 

I've found the same thing, Curt. Using ExpressPCB to make SMT toner transfer designs, the footprints that are standard are no-doubt fine for machine assembly or paste & heat, but if you are using a soldering iron you long for a bit more room to put down your soldering iron tip and solder without disturbing the part. 

Those little SOT23-3 transistors and regulators are especially difficult. But even big ole 1206 parts can benefit from a bit more foil. So I do make a lot of custom parts, sometimes starting with what came with the program and making the pads larger if there's room.


73-

Nick, WA5BDU


Re: Eagle Parts Library for QRP projects?

Mike D
 

The Sparkfun libraries are a good resource for getting started. 

I use Eagle extensively, and generally Mouser has libraries available for most parts they stock.  I usually order most of my components from there anyways, so it's a good resource.

Mike kd5rjz

On Tue, Apr 16, 2019 at 11:28 AM Curt via Groups.Io <rhulett1=consolidated.net@groups.io> wrote:
Well, as it happens, just now found the SparkFun libraries https://www.sparkfun.com/EAGLE , which look promising.  Not sure how missed these. I am going to wander through those parts to see what the footprints are like.  Also that site seems to have some tutorials that ought to be useful.

Curt KB5JO


Re: Eagle Parts Library for QRP projects?

Curt
 

Well, as it happens, just now found the SparkFun libraries https://www.sparkfun.com/EAGLE , which look promising.  Not sure how missed these. I am going to wander through those parts to see what the footprints are like.  Also that site seems to have some tutorials that ought to be useful.

Curt KB5JO


Re: Anti Static soldering mats

W4OED
 

Bob,

ESD mats are for benchtop usage.

The same applies to the Craft E Mat or the Kasis S-140 previously mentioned before.

Large ESD floor mats or even ESD floor paint exist, but they are mostly for production areas and repair shops. In this case, technical personnel wear ESD ankle straps over their shoes to discharge static electricity to the floor.

Oscar
W4OED

Quoting Bob Parr <parr@...>:

Is the idea to use this on a bench as a work surface or on the floor under your feet?

Bob
KG5GTE

I had problems following the links. I went to Amazon and searched
for Bertech Rubber ESD and there you go........ all kinds of
choices.

Thanks Bill for that info, used these years ago but here in Florida
especially during the summer there's not much static if you're shop
isn't air conditioned!! I may get the 18 x 24 one for my winter
projects.


John
KK4ITX

If you need a parachute and don't have one you probably won't need
one again.

On Apr 15, 2019, at 18:39, W4OED <w4oed@...> wrote:


Hi there,

I sensed that there was a bit of confusion regarding ESD mats and
I would like to clarify a few things, if I may. BTW, I work at an
electronics equipment factory and I wear an ESD wrist wrap and an
ESD lab coat when writing and verifying the testing procedures
for our products.

The Craft E Mat may be good as a work bench protector and
components gathering device, but it is not ESD compliant.

Here you have an example of a true ESD mat:

https://www.amazon.com/Bertech-Temperature-Rubber-Wrist-
Grounding/dp/B01KT3YPPS/ref=sr_1_1_sspa?
crid=WH16OYYVTSYC&keywords=esd+mat+kit+with+a+wrist+strap+and+groundin
g+cord &qid=1555363698&s=gateway&sprefix=ESD+mat%2Caps%2C200&sr=8-
1-spons&psc=1

In any event, ESD compliant mats and wrist straps are only
necessary when working with ESD sensitive devices, such as MOSFET
transistors, computer ICs, RAM memory sticks, some LEDs (laser
and UV), and CMOS ICs. Most TTL ICs
and bipolar transistors are quite resilient to ESD.

For the most part, when the ESD sensitive devices are soldered or
connected to the PCB, they become more resilient to ESD. When the
PCB carrying those devices is connected to the rest of the
equipment, only some I/O ports may still be ESD sensitive.

ESD compliant mats have a high-resistance top layer that
dissipates static electricity by sending it to a ground
connection. This ground can be the ground terminal of a nearby ac
socket or a dedicated low-resistance earth ground rod. The wrist
strap works in a similar fashion.

73!

Original email:
-----------------
From: wohlsson . wohlsson@...
Date: Sun, 14 Apr 2019 21:00:45 -0400
To: main@4sqrp.groups.io
Subject: Re: [4SQRP] Anti Static soldering mats


Opps...forgot the link

https://www.amazon.com/Craft-Mat-Oversize-Worry-
Silicone/dp/B07GBFRCJY/ref=sr_1_1?
keywords=craftemat&qid=1555288975&s=gateway&sr=8-1


Bill...wa8bda

<https://www.avast.com/sig-email?
utm_medium=email&utm_source=link&utm_campaign=sig-
email&utm_content=webmail&utm_term=icon> Virus-free.
www.avast.com <https://www.avast.com/sig-email?
utm_medium=email&utm_source=link&utm_campaign=sig-
email&utm_content=webmail&utm_term=link> <#DAB4FAD8-2DD7-40BB-
A1B8-4E2AA1F9FDF2>

On Sun, Apr 14, 2019 at 8:58 PM wohlsson . via Groups.Io
<wohlsson= gmail.com@groups.io> wrote:

Yes, these silicone mats are nice for bench work/kit building.
I have been

using the one

below now for a few months. Grand kids orginally bought one for
craft

projects and I was

attracted to the large 1/2" sides to contain things. Also the
large

working area allow me to

also place test equipment/tools on the work area and still have
lots of

space. I use a anti-static

wrist band when needed.


Bill.....wa8bda


<https://www.avast.com/sig-email?
utm_medium=email&utm_source=link&utm_campaign=sig-
email&utm_content=webmail&utm_term=icon> Virus-free.

www.avast.com

<https://www.avast.com/sig-email?
utm_medium=email&utm_source=link&utm_campaign=sig-
email&utm_content=webmail&utm_term=link>

<#m_1504296041646331162_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>


On Sun, Apr 14, 2019 at 6:55 PM Tim McDonough N9PUZ
<tim.n9puz@...>

wrote:


We have rolls of material that look similar at work. They cut
it to size
for the work area but then the corner gets punched and a snap
terminal
installed which has a lead connecting it to ground.


I've been starting to look for a small anti-static mat for my
home bench
and these that were mentioned look nice since they have the
raised edge
to
help keep things from escaping.


Tim N9PUZ


On 4/14/2019 5:05 PM, AG1P Ron wrote:


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
<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

<https://www.avast.com/sig-email?
utm_medium=email&utm_source=link&utm_campaign=sig-
email&utm_content=webmail&utm_term=icon> Virus-free.

www.avast.com

<https://www.avast.com/sig-email?
utm_medium=email&utm_source=link&utm_campaign=sig-
email&utm_content=webmail&utm_term=link>

<#m_1504296041646331162_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

------------------------------------------------------------------
-- mail2web - Check your email from the web at
https://link.mail2web.com/mail2web