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40 and 80 m nets
Ge Group The bands were fair tonight, my noise floor on 40 was down to a S7 after a big rain last night. 80 was pretty bad but some of you braves souls made it through. 40 Meters NK80 CHAS N5IXA RANDY N0YJ BERT N4MJ GLENN N3AAZ?? JOHN AA4K?? LOST HIM WI5H MIKE AA0B ROY KA9DVX JOHN 80 METERS NK80 CHAS KG5UK BRAD QSP WA0ITO TERRY KG5UK BRAD IN PERSON! N0YJ BERT KL7IXI MIKE THANKS ALL LETS HOPE I FIND MY QRN BEFORE THE NEXT NET. 72 Johnny AC0BQ --  72
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POTA activation
Tom Sevart
Hi all,
If anyone's interested in Parks on the Air, I will be activating Crawford State Park (Farlington lake) K-2333 while I and my family camp there Sunday through Friday. I'll be operating QRP on 40, 30, 20, 17, and 15 meters at various times throughout the week, depending on family activity and weather. I'll also take along a 2m/440 handheld but will mostly focus on HF. -- Tom Sevart N2UHC St. Paul, KS
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Now: Wednesday Evening 40 and 80 meter Nets - 05/18/2022
#cal-notice
Group Notification <noreply@...>
Wednesday Evening 40 and 80 meter Nets When: Where: Organizer: jomatlock@... Description:
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Re: 4SQRP Kits recently built
Larry Ryan
About the Transformer Experimentation Board: I got a quick reply from the designer, Bryan K0EMT who requested a photo. I sent it and he saw the problem right away: wrong number of turns plus my cross over didn't run under the toroid and start turns the other way. I rewound the toroid correctly this time and used #22 wire making it easier to wind and solder into the board. The results were amazing! After adjusting my antenna length a bit, it's 53 ohms and no reactance at 7.030 and 14.030 measured with my MFJ antenna analyzer. Fairly broad too and covers nearly the whole band. It will work on 15 and 10 but not as well. I could do more antenna wire length adjustments but I'm not too concerned with the other bands. My goal was to learn how to make my own EFHW and use it on 40m with the Bayou Jumper. Mission accomplished thanks to help from K0EMT.
I experimented with counterpoise lengths from 2 ft (recommended in experimentation board doc), 7 ft (recommended by Bryan) and 30 ft (used with a tuneable EFHW I used in the past). Neither of them made any difference. As pointed out by Jerry above, my 6 ft of coax from rig to the board probably served as counterpoise. And Don, thanks for your offer of help. My next project will be an 80M EFHW that handles 500W. Of course, I'll have to use big toroids and wire but I can get away with 2 turns of twisted and a total of 14 turns. I live on a heavily wooded property and there are a few really tall Doug Firs to support that longer antenna wire. 73, Larry W7DGP 73, Larry W7DGP
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Event: Wednesday Evening 40 and 80 meter Nets - 05/18/2022
#cal-reminder
Group Notification <noreply@...>
Reminder: Wednesday Evening 40 and 80 meter Nets When: Where: Organizer: jomatlock@... Description:
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Event: Wednesday Evening 40 and 80 meter Nets - 05/18/2022
#cal-reminder
Group Notification <noreply@...>
Reminder: Wednesday Evening 40 and 80 meter Nets When: Where: Organizer: jomatlock@... Description:
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Re: Crystals, crystals, everywhere crystals!
For crystal storage I have a piece of white packing foam at the bottom or a small box. The crystals plug into the foam and sit upright. On the top of each crystal I placed a small white label with the frequency and the rig used in, if special. This makes it easy to choose the crystal and protects them from my occasional fumbling. The labels were printed on address labels in small print. My handwriting is not so clear. A quick spray of clear krylon keeps them clean. Dr. Don W4BWS
God Bless All
On Tue, May 17, 2022 at 2:03 PM Lloyd Sumpter <lsumpter@...> wrote: For those rock-bounders like me...
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Crystals, crystals, everywhere crystals!
Lloyd Sumpter
For those rock-bounders like me...
I'm getting quite a collection of crystals for 40m and 20m. Currently they're all in a small metal box, and I have to take off my glasses and squint at them for a while to see what freq they are. How do you store your crystals? Do you have some method of sorting them so you can quickly find the freq you want? Lloyd VA7LAS
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Re: 4SQRP Kits recently built
J.K. Wright
I have several efhw - 66ft, 126ft...all have a 49:1 with 15ft counterpoise wires. Also your coax shield will act as a counterpoise. I use a common mode balun (can be an ugly balun) at the 49:1 box. A 66ft efhw should have nil swr on 40m and 20m and be tunable on 10-40m. You can also ck out a homebrew 49:1 balun by placing a 2.5k resistor across the out put and measure swr at input with antenna analyzer. You should see R of about 50 ohms. Jerry, NK2C
On Mon, May 16, 2022, 11:18 PM Larry Ryan <llryan@...> wrote: Being a late comer to 4SQRP (started with the Bayou Jumper) I have found the various kits really well designed and a bargin when compared to other gear on the market. My past QRP was my pair of FT-817s I carried all over the world before I retired from Hewlett-Packard. They were sold a few years ago with a goodbye to QRP. The BJ was too tempting so I'm back. BTW, I added the Souperuper and EZKeyer IIi/SMT to the BJ. I even bought an IC-705 to replace my FT817s.
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Re: 4SQRP Kits recently built
Don, W9EBK
Larry, My first guess is the counterpoise wire is too long. Based on your description it sounds like you built an Off-center Fed Dipole for 4.875 MHz. Try shortening your counterpoise to 3 feet and check it again. If you need more details, please contact me. I'll be happy to help when I'm not at work . Don, W9EBK
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4SQRP Kits recently built
Larry Ryan
Being a late comer to 4SQRP (started with the Bayou Jumper) I have found the various kits really well designed and a bargin when compared to other gear on the market. My past QRP was my pair of FT-817s I carried all over the world before I retired from Hewlett-Packard. They were sold a few years ago with a goodbye to QRP. The BJ was too tempting so I'm back. BTW, I added the Souperuper and EZKeyer IIi/SMT to the BJ. I even bought an IC-705 to replace my FT817s.
I recently built 3 kits that I want to mention: 4S Tuner, QRPoMeter and the Transformer Experimentation Board 4S Tuner: I finished this tuner last night and tested it this afternoon. It went together quite well although it took a search for more photos of the coil winding and understanding the options. Basically, everything needed to build and use the tuner was in the manual. Using PCB material for the case is a fantastic idea. I like the design of the 4S Tuner because of the IN/OUT switch where you can set the tuner without melting your final transistor. The bridge design with a dummy load makes a lot of sense and I see it used with the QRPoMeter. For the test, I used an existing 66 ft long wire for EFHW pulled out to 73 ft. I also used the existing 30 ft counterpoise lying on the ground. No problems - it tuned right up on 20M with the inductor set at E or F (goes from A to L in steps). On 40, it tuned right up on L for the inductor (max inductance). I called a station in Bend, OR (I'm near Seattle) and got a 44 report. Then I switched from IN to OUT (duh!) and he copied me Q5! OUT connects the rig to the antenna rather than to a dummy load and bridge SWR detector. This tuner is a worth while project and will go with my Bayou Jumper to simulate the actual Paraset use of a longwire antenna. QRPoMeter: I didn't get this through 4SQRP but directly from NM0S. I learned about it from this group, however. This kit went together quite well with excellent build instructions. Like the 4S Tuner, I really like the design and the use of a bridge circuit to measure SWR and a nice load on the rig during the process. Also it provides a dummy load. Back in my FT-817 days, I had an Oak Hills QRP Wattmeter which got sold with the rigs. The QRPoMeter is a good fit and is quite accurate. Its powered by an internal 9v battery and has a very sharp LCD display. Its clearly a superior instrument. Transformer Experimentation Board: This kit has a very handy set of components with the PC board. After learning why certain size of toroids require a certain number of turns, I decided to build the EFHW 49:1 transformer and use this with my Bayou Jumper rather than a long wire as used back in WWII. I did the winding carefully and gave it a try with a 66 ft longwire and a 30 ft counterpoise. Didn't work. Then I checked the photo and see the jumper is needed to connect the CP to the circuit. Still no joy. My antenna analyzers indicate that its not an antenna for ANY ham band. I checked everything closely and made sure I burned off the thermaleze and tinned the wires, etc. The included caps are unmarked but I measured them and chose the largest one. With or without cap, its the same. I'm at a loss on this one. All in all, lots of fun building inexpensive projects that make ham radio fun and interesting. My hat's off to all those who design and produce these kits. 73, Larry W7DGP
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Event: Wednesday Evening 40 and 80 meter Nets - 05/18/2022
#cal-reminder
Group Notification <noreply@...>
Reminder: Wednesday Evening 40 and 80 meter Nets When: Where: Organizer: jomatlock@... Description:
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Room available at the Holiday Inn Dayton/Fairborn
Howard Hoyt
Hi all,
One last plea: if anyone needs a room for FDIM or Hamvention, I have one available at the Holiday Inn in Fairborn and I'm willing to deal on the price! Cheers & 73, Howie / WA4PSC
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Re: If you are going to FDIM/Xenia ...
Johnny, Jim (N5IB) and anyone headed to Xenia that does go to the Airforce museum, I can’t remember which hangar it’s in, but there is a small twin engined blue & white Aero Commander 560 in a back corner that was actually used as Air Force One several times for Eisenhower. For a while, during my Army career, while I was stationed at Fort Devens, MA, I belonged to the Fort Devens flying club and they actually had it in their stable of aircraft. We had a picture of Eisenhower getting into it framed by the rear door and that photo is still on the aircraft. The wife of one of our club members made a set of checkered seat covers for it and as far as I know, they are still on the seats. I took some multi engine flight training in that plane and have actually flown it. When aviation gas prices got so high we turned the plane back over to the Air Force and they put it in the museum shortly after that. The one time I went to FDIM, I saw it there and several other hams from here (Wichita, KS) have told me it’s still on display there.
toggle quoted messageShow quoted text
Jim, W0EB
On May 14, 2022, at 6:41 PM, Johnny AC0BQ <jomatlock@...> wrote:
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Re: If you are going to FDIM/Xenia ...
Ge Jim That’s a interesting bit of history with a twist of ham radio! How cool is that. I hope you can make it up there to get some pictures some day. 73 Johnny ACØBQ
On Sat, May 14, 2022 at 2:28 PM Jim, N5IB <n5ib@...> wrote: Should you be heading for the Dayton area for the big 'Fest and/or FDIM, don't forget you're less than 10 miles away from the National Museum of the U.S. Air Force. --
Check out the 4SQRP website at 4sqrp.com
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Re: If you are going to FDIM/Xenia ...
Everett Catlin
Jim have a good trip. Someday I will get to go.ay safe and I am about to finish building a QCX-Mini transceiver. Built one for 20 and it works great. Have a fun time. 73 Everett Catlin Jr WA2BHS formerly N5MZX
On Sat, May 14, 2022 at 7:28 PM Jim, N5IB <n5ib@...> wrote: Should you be heading for the Dayton area for the big 'Fest and/or FDIM, don't forget you're less than 10 miles away from the National Museum of the U.S. Air Force.
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If you are going to FDIM/Xenia ...
Jim, N5IB
Should you be heading for the Dayton area for the big 'Fest and/or FDIM, don't forget you're less than 10 miles away from the National Museum of the U.S. Air Force.
Open 9am-5pm 7 days a week And if you should take time for a visit... and if you are wandering the WW2 gallery... and should you happen across a Bell P39Q AiraCobra... you might notice the name lettered below the canopy - - Lt. L Spoonts That would be my Uncle Les - Lt, later LtCol (ret) Leslie Spoonts, W5WWX (SK) It was Uncle Les who put me on a path to my Novice ticket back about 1960. That call sign is now held by my son, Ian, who's a meteorologist. Perhaps I'll get there yet, but I'd dearly love to have someone send me a photo of that aircraft, with a bunch of hams in the picture. 73 Jim, N5IB
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QRP, NN1G transceiver
Paul Goemans
Curt,
I had one once upon a time, got the kit from a “new ham” who
discovered it was beyond his abilities. Worked swell when I got it assembled and
alligned. Can you send the schematics to me if you have them in a digital
format?
I think the photo below is of my NN1G two board.
 Paul
Goemans WA9PWP
Stoughton, WI
From: Curt via groups.io
Sent: Saturday, May 14, 2022 12:55 PM
To: main@4SQRP.groups.io
Subject: Re: [4SQRP] New thread, QRP QRP.
Here tinkering with a nn1g 2 board transceiver. 1993 predecessor to 40-40 and sw
series. Similar receiver except fixed gain mc1350 between the ne602 and it uses
a real variable capacitor. Original builder had not aligned TX and rx, well
nearly 0 Hertz difference. Now it's able to make qsos. Curt
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Re: New thread, QRP
If you are going to Hamvention you should go early if you can to catch FDIM. The vendors night is open to all; you have to register for the talks and banquet. QRPARCI is also offering streaming memberships this year, so you can catch the talks at home if you are not making the trip.
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Re: New thread, QRP
Curt
QRP. Here tinkering with a nn1g 2 board transceiver. 1993 predecessor to 40-40 and sw series. Similar receiver except fixed gain mc1350 between the ne602 and it uses a real variable capacitor. Original builder had not aligned TX and rx, well nearly 0 Hertz difference. Now it's able to make qsos.
Curt
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