Date   

Scraping insulation off magnet wire for toroids

KF5CSW
 

Hi everyone!

I'm making a toroid transformer. This is my first time.  I'm having a lot of trouble scraping away the necessary portions  of insulation from the 22 awg magnet wire. I'm using a Stanley Fatmax retractable utility knife(with fresh razor blade). It's not going very well. I miss a lot and have to do multiple attempts to get it all cleaned off, and was wondering if anybody had some tips. 

73,
John
KF5CSW 


Re: 4SQRPG antenna tuner/coupler

F1BFU - Fr - 79
 

Many thanks Ron. I understand the problem.
Thanks for you explanation.

73 QRO

Gilles F1BFU since 1969
GQRPClub 15889 
QRP ARCI 16979


Le 22 oct. 2021 à 18:07, AG1P Ron <ag1p@...> a écrit :

GM Gilles,
I would like to add to Steve’s comments.  Besides expensive shipping - at one point it cost $180 USD to ship a $30 USD kit to South Africa - we had a lot of kits taking between a month and 2 months to arrive at DX locations. One kit from US to Canada took 3 month to arrive. As you can imagine, the buyer was not happy.  A number were lost in transit and we had to refund the buyer wit the club taking a loss. Some DX buyers filed a claim with PayPal and with the refund, we lost the profit, the kit and the cost to ship. We are a small  non-profit so just can’t afford to lose the revenue needed to put on OzarkCon every year.  
 
At some point in the future when sanity returns to the postal system, we will reopen sales to DX locations. It is our hope that comes sooner than later. 
 
72 - Ron - AG1P
4SQRP Volunteer Secretary/Treasurer
 
From: main@4SQRP.groups.io [mailto:main@4SQRP.groups.io] On Behalf Of Steve MIller via groups.io
Sent: Friday, October 22, 2021 6:35 AM
To: main@4SQRP.groups.io
Subject: Re: [4SQRP] 4SQRPG antenna tuner/coupler
 
It's not the custom fees but the embargos due to covid....but shipping to anywhere out of the U.S. has become very expensive.
 
Steve N0SM
 
On Friday, October 22, 2021, 07:33:06 AM CDT, F1BFU - Fr - 79 <gilles.f1bfu@...> wrote: 
 
 
Hi Ted
 
No, the club does not want to send to France because of the high customs fees.
Maybe I'll turn to the ATU of the GQRPClub. I will study the characteristics of the two kits and then make a decision.
 
In any case, it's very kind of you for this proposal.
 
73 Gilles F1BFU since 1969
GQRPClub 15889 
QRP ARCI 16979
 
Le 22 oct. 2021 à 13:56, Ted via groups.io <k3rta@...> a écrit :
 
Will the club not post to France?  I would be tempted to purchase a kit and send it myself.
 
 
-ted
 
 




Re: 4SQRPG antenna tuner/coupler

AG1P Ron
 

GM Gilles,

I would like to add to Steve’s comments.  Besides expensive shipping - at one point it cost $180 USD to ship a $30 USD kit to South Africa - we had a lot of kits taking between a month and 2 months to arrive at DX locations. One kit from US to Canada took 3 month to arrive. As you can imagine, the buyer was not happy.  A number were lost in transit and we had to refund the buyer wit the club taking a loss. Some DX buyers filed a claim with PayPal and with the refund, we lost the profit, the kit and the cost to ship. We are a small  non-profit so just can’t afford to lose the revenue needed to put on OzarkCon every year. 

 

At some point in the future when sanity returns to the postal system, we will reopen sales to DX locations. It is our hope that comes sooner than later.

 

72 - Ron - AG1P

4SQRP Volunteer Secretary/Treasurer

 

From: main@4SQRP.groups.io [mailto:main@4SQRP.groups.io] On Behalf Of Steve MIller via groups.io
Sent: Friday, October 22, 2021 6:35 AM
To: main@4SQRP.groups.io
Subject: Re: [4SQRP] 4SQRPG antenna tuner/coupler

 

It's not the custom fees but the embargos due to covid....but shipping to anywhere out of the U.S. has become very expensive.

 

Steve N0SM

 

On Friday, October 22, 2021, 07:33:06 AM CDT, F1BFU - Fr - 79 <gilles.f1bfu@...> wrote:

 

 

Hi Ted

 

No, the club does not want to send to France because of the high customs fees.

Maybe I'll turn to the ATU of the GQRPClub. I will study the characteristics of the two kits and then make a decision.

 

In any case, it's very kind of you for this proposal.

 

73 Gilles F1BFU since 1969

GQRPClub 15889 
QRP ARCI 16979

 

Le 22 oct. 2021 à 13:56, Ted via groups.io <k3rta@...> a écrit :

 

Will the club not post to France?  I would be tempted to purchase a kit and send it myself.

 

 

-ted

 

 


Re: 4SQRPG antenna tuner/coupler

Steve MIller
 

It's not the custom fees but the embargos due to covid....but shipping to anywhere out of the U.S. has become very expensive.

Steve N0SM

On Friday, October 22, 2021, 07:33:06 AM CDT, F1BFU - Fr - 79 <gilles.f1bfu@...> wrote:


Hi Ted

No, the club does not want to send to France because of the high customs fees.
Maybe I'll turn to the ATU of the GQRPClub. I will study the characteristics of the two kits and then make a decision.

In any case, it's very kind of you for this proposal.

73 Gilles F1BFU since 1969
GQRPClub 15889 
QRP ARCI 16979

Le 22 oct. 2021 à 13:56, Ted via groups.io <k3rta@...> a écrit :

Will the club not post to France?  I would be tempted to purchase a kit and send it myself.


-ted



Re: 4SQRPG antenna tuner/coupler

Adam
 

The 4S Tuner really is the perfect bit of kit in the field! 
I built mine several years ago and use it regularly with my Bayou Jumper.
There are other QRP tuners on the market, but this is the perfect package with the cool features it has to offer including a built in attenuator, more adjustment then some other QRP tuners and twin LED indicators which are very useful even in bright daylight.

72
Adam
VK8FEET


Re: 4SQRPG antenna tuner/coupler

F1BFU - Fr - 79
 

Hi Ted

No, the club does not want to send to France because of the high customs fees.
Maybe I'll turn to the ATU of the GQRPClub. I will study the characteristics of the two kits and then make a decision.

In any case, it's very kind of you for this proposal.

73 Gilles F1BFU since 1969
GQRPClub 15889 
QRP ARCI 16979

Le 22 oct. 2021 à 13:56, Ted via groups.io <k3rta@...> a écrit :

Will the club not post to France?  I would be tempted to purchase a kit and send it myself.


-ted



Re: 4SQRPG antenna tuner/coupler

Ted
 

Will the club not post to France?  I would be tempted to purchase a kit and send it myself.


-ted


Re: 4SQRPG antenna tuner/coupler

F1BFU - Fr - 79
 

Hi Steve

Too bad we can't have such a kit in France or even PCBs.

73
Gilles F1BFU since 1969
GQRPClub 15889 
QRP ARCI 16979


Le 22 oct. 2021 à 13:40, K9NUD-Steve <k9nud@...> a écrit :

What a great little kit! 
--
73 de K9NUD

Gilles F1BFU since 1969
GQRPClub 15889 
QRP ARCI 16979


Re: 4SQRPG antenna tuner/coupler

K9NUD-Steve
 

What a great little kit! 
--
73 de K9NUD


Re: 40 and 80 Meter Net report

W6BOW
 

Ed - ad7gr,

Thanks for your inspiring e-mail.

Been there and done that OM.

You can't have hooked up with a better bunch of guys and gals of all ages than 4SQRP.

73

Don
W6BOW


-----Original Message-----
From: Ed - ad7gr via groups.io <edko@...>
To: main@4SQRP.groups.io
Sent: Wed, Oct 20, 2021 7:44 pm
Subject: Re: [4SQRP] 40 and 80 Meter Net report

Thanks Johnny,

I finally got my nerve up.   I've had a three year CW dry spell.   Now getting excited about QRP CW so I'll try checking in often and hopefully I won't be so nervous making with fumble fingers.

72,
Ed - ad7gr
#1191
Rev.14:6-12
1Cor.8:6
Eze.33:7
On 10/20/2021 6:59 PM, Johnny AC0BQ wrote:
Ge group 
Pretty good signals for a change! 
40 was in good shape and most of the signals were strong. 

CHeck in's were: 
40 Meters\
WI5H MIKE 
N4ELM DAVE 
AD7GR ED Fist time welcome ED
N0RSR ROGER 

80 METERS
N4ELM DAVE * DOUBLE
NK8O CHARLES
N0YJ BERT
WD4CFN STEVE 
AA9AA MIKE, Pretty Thin! 
K5ESE SCOTT

Thanks everyone, have a great week. 
Our WX has been beautiful!  
72 
Johnny AC0BQ



Re: 4SQRPG antenna tuner/coupler

W6BOW
 

Dick,

Thanks for the excellent testimonial most helpful.

I just purchased the 4S-Tuner/Antenna Coupler kit via the 4SQRP website. 
I'm looking forward to the assembly (with 4SQRP's group support if that may be needed).
I have built Dave's Hilltopper-20 kit and am contemplating acquiring/assembling the 40M and 30M versions of this versatile and robust rig.
(My wife will be part of those "contemplations" for reasons which are no surprise of course.)

I'd hoped to join the Wednesday 4SQRP Net during my cross country road trip this past summer. Circumstances prevented me from transmitting but I did RX the net FB from our motel parking lot in Memphis using a short wave portable radio and the venerable "hank" of wire. 
(Out here in my home QTH SF my 4SQRP net monitoring is limited to internet (SDR). 

I'll be with family in NJ over the holidays with a reasonable expectation of being able to join the 4SQRP 40 net from there - running QRP through my newly assembled 4S-Tuner/Antenna Coupler.

73

Don
W6BOW  


-----Original Message-----
From: OwlCricker - K7ULM <dickw299@...>
To: main@4SQRP.groups.io
Sent: Wed, Oct 20, 2021 8:05 am
Subject: [4SQRP] 4SQRPG antenna tuner/coupler

In my limited ham experience the 4S-Tuner/Antenna Coupler
Designed by David Cripe, NMØS, is a fun simple build and it is an awesome QRP tool. I use it quiet often and it is simple to use, powerfully effective and introduces very little if any noticable losses in QRP communications.  Using it, from Montana I can work all of the US, Canada, Mexico, PR, and parts of Europe.   With 5w, if I can hear them. I can generally work them.  Working weak signal SOTA and POTA activator are a blast to test the effectiveness of your QRP gear and the 4SQRPG Tuner improves performance.   The two indicator lights speed up tuning and make double checking the tune quick also.  Switching bands is a snap as it is dead on repeatable.  Plus it is a great looking piece of kit.  Tip of the hat to Dave Cripe, NM0S, for the fantastic design and to 4SQRPG for making it available.  Thanks for all your great kits, they have greatly enhanced my enjoyment of the hobby. 
K7ULM Dick 


Re: 40 and 80 Meter Net report

Ed - ad7gr
 

Thanks Johnny, I'll be back.

72,
Ed - ad7gr
Rev.14:6-12
1Cor.8:6
Eze.33:7
On 10/20/2021 8:19 PM, Johnny AC0BQ wrote:

Glad you jumped in Ed
Don’t worry about sending perfect code or sending super fast, just listen to my mistakes!
If you need me to slow down send QRS and I will dial it back.
72
Cul
Johnny ACØBQ 


Re: 40 and 80 Meter Net report

Johnny AC0BQ
 

Glad you jumped in Ed
Don’t worry about sending perfect code or sending super fast, just listen to my mistakes!
If you need me to slow down send QRS and I will dial it back.
72
Cul
Johnny ACØBQ 

On Wed, Oct 20, 2021 at 9:44 PM Ed - ad7gr via groups.io <edko=thegeo.net@groups.io> wrote:
Thanks Johnny,

I finally got my nerve up.   I've had a three year CW dry spell.   Now getting excited about QRP CW so I'll try checking in often and hopefully I won't be so nervous making with fumble fingers.

72,
Ed - ad7gr
#1191
Rev.14:6-12
1Cor.8:6
Eze.33:7
On 10/20/2021 6:59 PM, Johnny AC0BQ wrote:
Ge group 
Pretty good signals for a change! 
40 was in good shape and most of the signals were strong. 

CHeck in's were: 
40 Meters\
WI5H MIKE 
N4ELM DAVE 
AD7GR ED Fist time welcome ED
N0RSR ROGER 

80 METERS
N4ELM DAVE * DOUBLE
NK8O CHARLES
N0YJ BERT
WD4CFN STEVE 
AA9AA MIKE, Pretty Thin! 
K5ESE SCOTT

Thanks everyone, have a great week. 
Our WX has been beautiful!  
72 
Johnny AC0BQ


--
Check out the 4SQRP website at 4sqrp.com


Re: 40 and 80 Meter Net report

Ed - ad7gr
 

Thanks Johnny,

I finally got my nerve up.   I've had a three year CW dry spell.   Now getting excited about QRP CW so I'll try checking in often and hopefully I won't be so nervous making with fumble fingers.

72,
Ed - ad7gr
#1191
Rev.14:6-12
1Cor.8:6
Eze.33:7
On 10/20/2021 6:59 PM, Johnny AC0BQ wrote:

Ge group 
Pretty good signals for a change! 
40 was in good shape and most of the signals were strong. 

CHeck in's were: 
40 Meters\
WI5H MIKE 
N4ELM DAVE 
AD7GR ED Fist time welcome ED
N0RSR ROGER 

80 METERS
N4ELM DAVE * DOUBLE
NK8O CHARLES
N0YJ BERT
WD4CFN STEVE 
AA9AA MIKE, Pretty Thin! 
K5ESE SCOTT

Thanks everyone, have a great week. 
Our WX has been beautiful!  
72 
Johnny AC0BQ



DELTA MIKE ROMEO NET

Robert
 

GOOD NET TONIGHT

N0RSR ROGER
WA9BNZ BILL
KC0PP KEITH
WG5F ED
W0MQY JOE
NK8O CHARLES
KK5IB DARRYL
AC0BQ JOHNNY
N4ELM DAVE

THANKS TO ALL OF THOSE WHO CHECKED IN TONIGHT

73'S
BERT
N0YJ


40 and 80 Meter Net report

Johnny AC0BQ
 

Ge group 
Pretty good signals for a change! 
40 was in good shape and most of the signals were strong. 

CHeck in's were: 
40 Meters\
WI5H MIKE 
N4ELM DAVE 
AD7GR ED Fist time welcome ED
N0RSR ROGER 

80 METERS
N4ELM DAVE * DOUBLE
NK8O CHARLES
N0YJ BERT
WD4CFN STEVE 
AA9AA MIKE, Pretty Thin! 
K5ESE SCOTT

Thanks everyone, have a great week. 
Our WX has been beautiful!  
72 
Johnny AC0BQ





--

72
JOHNNY AC0BQ  ..



Now: Wednesday Evening 40 and 80 meter Nets - 10/20/2021 #cal-notice

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

Wednesday Evening 40 and 80 meter Nets

When:
10/20/2021
20:00 to 21:00
(UTC-05:00) America/Chicago

Where:
40 and 80 Meters

Organizer: jomatlock@...

View Event

Description:
The 40 Meter Net will be at 8:00 pm central time (DST)  on 7.122 +-. QRM
NCS is WQ5RP/ACØBQ 

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central Time Wednesday (DST). 



The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operator is Johnny ACØBQ 

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 02:00 UTC (9:00PM Central dst 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.


Re: Bending the wire

Curt
 

I was operating from my son's HOA house with an off center fed dipole cut for 30m, around 47 feet total fed at one third point with ladder line. The longer side put near peak of rafters, straight from feed point and bent at end. The smaller end was pretty much positioned where it fit. Made qrp contacts from 40 to 15 meters using a zm2 tuner. Of course the 4state tuner could work well here. My operating position was close to where feed enters attic which helped minimize its radiation. I also had used same ocfd from a cabin, to mate with a popular qrp rig that covers only 40 30 and 20 meters. As ocfd does better than center fed on even harmonics its worth consideration. Remember center is most important for radiation, and as others here note keep the ends away from significant metal objects. 

Curt


Re: Bending the wire

N5SE
 

Bobby, you are exactly right with one caveat.  My new house was built for energy efficiency.  Won't go into all the stuff they did, but the roof base is particle board with an shiny aluminum base.  The idea is that a major portion of the incoming heat is reflected back into the atmosphere.  All of the roof is bungalow style except for one peak facing due south.  It is so efficient that all attic  antennas have no outside world incoming or outgoing radiation except for a very narrow window due south.  I have three tower mounted VHF/UHF repeaters within ten miles that I cannot receive or hit with an attic mounted slim-jim.  Walk out the front door with my handheld with rubber duck and hit all three with 5/9 signal plus several others miles away.  Closest repeater to the south is over seventy miles away at an angle.  At night, the attic dipole says that 80 and 40 are dead; except for that narrow slice facing the Gulf of Mexico, the narrow slice between Africa and South America.

Big moral of the story, check the roofing for radiation shielding as well as other oppressive bends and turns.  Look for anything big and metal.  My gas fireplace is located on the interior of the house, not an outside wall.  The fake chimney is double wall steel to cut leakage of heat on the hot gases vented up six feet above the roof high point.  I spent hours with field strength meters, SWR bridges, baluns, ugly baluns, portable receivers, banging my head on rafters, etc.  I cannot believe that my roof provides an almost perfect dummy load. 

But all is well, now I know and can survive and learned a lot.  The gutters are up, and they are metal.  Lots of places to tap in on them.  Have already got mounts up for the UHF/VHF antenna, just have to weatherproof the slim-jim.

Billy Wayne Moore


From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of David Wilcox K8WPE via groups.io <Djwilcox01@...>
Sent: Wednesday, October 20, 2021 14:54
To: main@4sqrp.groups.io <main@4sqrp.groups.io>
Subject: Re: [4SQRP] Bending the wire
 
Bobby,

You are overthinking this.  Put up the longest dipole you can in your attic, bend it where ever the roof boards allow you to attach. Feed it with 450 ohm window line. Get a low cost (or high cost) tuner and see where it resonates.  With low power (5 to 15 watts) you will get out somewhere and make contacts.  It’s just that the better the antenna (outside, higher, longer, etc.) the easier it will be to make a contact.  But first try the simple dipole as discussed above and see where your signal goes.  

My first antenna was a 30’ wire run out through the screen in our first home and tied around a tree branch and I made contacts with 2 watts on 40 and 15 meters.  The bands are getting better.  Have fun. Once you get started you can try all kinds of wires in many hidden installations.  Then have fun experimenting, but some antennas will work better than others.  Just do it!

Dave K8WPE since 1960

David J. Wilcox’s iPad

On Oct 20, 2021, at 11:55 AM, Bobby Drummond <alphak4ja@...> wrote:


Question for the group:


Has anyone had success using a deliberate zig zag layout in an attic antenna?   I have an attic that is about 40 feet long at its longest point.  A doublet, if erected conventionally, would only be long enough for the 20 meter band and up.  I have heard (and used) an attic doublet antenna where the ends are bent in an L (one L pointed north on one side of the antenna and pointed south on the other side of the antenna)

If I laid out each side in a zig zag pattern I would be able to have more wire on each side, of course, but I am sure there would be some negative factors that would have to be considered.  I'm thinking that this might even give me enough wire in the air to be effective down to 40 meters.

Is there anyone on the list that could do an antenna modeling mock up of said antenna?

Bobby - AK4JA

On Tue, Oct 19, 2021 at 11:29 PM Kent Trimble, K9ZTV <k9ztv@...> wrote:
Thanks, Dick. 

Kent



On Oct 19, 2021, at 10:17 PM, OwlCricker - K7ULM <dickw299@...> wrote:


https://pa3hho.wordpress.com/2013/10/12/upc-unique-wire-tuner-2/
- - - - - - - - - - - - - - - - - - -
Dick Wendell - K7ULM
406-781-1333

If you don't know Morse Code,
You don't know dit.


On Tue, Oct 19, 2021 at 9:01 PM Kent Trimble, K9ZTV <k9ztv@...> wrote:
Way too sophisticated!

Newly graduated from grad school in 1970 and in a basement apartment, I ran a 20-gauge hookup wire out a window, under some gravel, through some bushes, to a self-tapping screw (to hell with the paint) into a downspout.  The other end to a UPC Unique Wire Tuner (that was its name and I still have it), to an FT-101B kicking out about 140 watts.   Same results plus wonderfully geometric TVI.  I only operated late at night.

73,

Kent  K9ZTV

On Oct 19, 2021, at 6:59 PM, Thomas Martin <tem494@...> wrote:

Some time ago the discussion was about antennas for limited spaces and mentioned that I had used the homes gutter system.
Here is a run down of what I used to make my gutters a working antenna. I obtained most of my information from articles on the internet and modified as to see fit to fit my location.
The back of my home which faces North has a continuous run of about 45 feet plus to down spouts each about 15 feet each giving me a length of roughly 75 feet. I must note none of the down spouts come on contact with the ground. I used a 9:1 unun which was attached to one of the down spouts I used self tapping metal screws to attach a short 14 gauge wire to the down spouts ( paint was removed around the crimp ring) this wire was attached to the unun. A wire from the radial terminal on the unun was the attaches to the ground rod. It should be noted that the wire from the down spout to the unun should be kept off the ground and I also kept it relatively short but that was my decision to do. I fed this with RG 8X. 
Using this arrangement I have been able to work North America South America, Europe at one point was able to work Japan and  Hawaii. I have ordered a commercial made gutter antenna which haven’t received yet but if there is interest I can share my results. 
This has been a great alternative for my HOA restrictions and my feelings I would use it even if I didn’t have HOA restrictions.

Tom
K0amd



--
73 de AK4JA


Event: Wednesday Evening 40 and 80 meter Nets - 10/20/2021 #cal-reminder

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

Reminder: Wednesday Evening 40 and 80 meter Nets

When:
10/20/2021
20:00 to 21:00
(UTC-05:00) America/Chicago

Where:
40 and 80 Meters

Organizer: jomatlock@...

View Event

Description:
The 40 Meter Net will be at 8:00 pm central time (DST)  on 7.122 +-. QRM
NCS is WQ5RP/ACØBQ 

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central Time Wednesday (DST). 



The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operator is Johnny ACØBQ 

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 02:00 UTC (9:00PM Central dst 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.

1301 - 1320 of 26553