Date   

Ocon Oscillator Hunt

WA0ITP
 

Just ran across this article on direction finding antennas.  Some vbersions look easy to build and would be good for the Ocon Oscillator Hunt. The Snoop Loop abt halfway down the page looks very good for our purposes.
http://www.ce5prd.cl/documentos/antenna_handbook/14.pdf
-- 
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com


Member List

davemrtn
 

WOW !!!

I see the 4SQRP member count very recently surpassed 1300.

Way to go 4SQRP team and members.

David -NA1MH



Sent from my Verizon, Samsung Galaxy smartphone


Re: 4QRP email blog 2017-1

Johnny AC0BQ
 

Good Job Walter.
Thanks 
Johnny AC0BQ

On Wed, Feb 8, 2017 at 12:11 PM Walter - K5EST walter.k5est@... [4sqrp] <4sqrp@...> wrote:


4QRP
The original email blog of the 4SQRP Group -- copyright February 2017
Walter - K5EST - Editor


This coming weekend

SSS Second Sunday Spring
February 12th

The Second Sunday Sprint is this coming Sunday, February 12th7:00-9:00 
pm CST (Monday, 0100-0300Z). The rules are simple. Go to the 4SQRP 
website <http://4sqrp.com> and click on "4SQRP on air activities" Scroll 
down to the bottom of that page and you will see a summary of the rules, 
plus links to where you submit your score and where you can get the 
complete rules.

If you tried to participate but nobody heard you (or you heard nobody), 
feel free to enter a score of 0 points, as long as you made an honest 
try for at least 15 minutes. Obviously, reporting a score of 0 is 
optional and won't affect anything, but it will give me an idea of how 
many people are participating.

I don't have 80M capability, but I understand 80M has been more friendly 
than 40M lately. It might be worth listening down there for a while.

72,

John, AA0VE
4SQRP Contest Coordinator



OzarkCon 2017

With less than 50 days until the pre-registration ends to the Premier MidWest QRP Conference, OzarkCon, please do not wait to pre-register! Do it now :-)

PrePaid Registrants will receive the following items in your package at the Registration desk when you arrive in Branson: 
1. Tickets for the prize drawings (two per registration) 
2. Meal tickets for the Friday night banquet dinner (if you ordered them) 
3. Souvenir callsign and name ID badge (if pre-registered and paid by the dates indicated on the website)

ALSO
an OzarkCon FIRST.....
The Hidden Oscillator

 

At the conclusion of the prize drawings on Saturday I’m going to activate a small rf oscillator and hide it somewhere in or around the Stonecastle. The person that returns it to me will receive an unbuilt Hy-Per-Mite* audio filter kit as a prize.

 The oscillator is set to approximately 7116.5 kHz and it switches on for about 1.5 seconds and off for about the same amount of time. You will be able to hear it with your cw receiver. (Actually it’s possible to "hear" it with just a portable AM shortwave receiver but during the ‘on’ time it will just quiet the receiver and you won’t get the nice CW note without a BFO). I can hear it with my County Comm GP-5/SSB receiver 125 feet away. I’ll let it run until someone finds it or until I have to leave on Sunday.

 It will be hidden in a “common” area that is accessible to everyone at any time. Nothing will have to be disassembled and nothing of any major consequence will have to be moved to find it. It will be stationary and its retrieval will not require you to be in an unsafe situation. 

Good luck.......73, Bill - KV6Z

Dummy Load QSO Party at O'Con

Be sure to bring along a portable rig, a dummy load and some QSL cards. There will be a fun operating event at the Stone Castle to make some QSO's on a dummy load. Suggested operating frequency is around 7040 and 7122KHz CW.

Special event station KØN will be on the air as well as WQ5RP on the dummy load. Make a QSO with KØN or WQ5RP and bring your QSL card to the station to be entered into a special prize drawing!

Terry, WA0ITP has provided some info on the OzarkCon Dummy Load Special Antenna that might be helpful to increase your signal strength.  Check it ot on Terry's web site.





The Bayou Jumper

Have you heard a "Jumper" on the air? This popular nostalgic kit has a huge following. Being "rock-bound" (crystal controlled) dread has sure changed over the years. The rock-bound has become an on the air status symbol. I hear operators moving frequencies to accommodate the the crystal bound stations. Seems like the nautical rules ......power boats give way to sail.

The rig has a socket for the old-style FT243 crystals, plus 7030 and 7122 kHz crystals and included crystal adapters. If you have old 7MHz Novice crystals, you can use them with this rig! AND only one toroid to wind in the receiver, and none in the transmitter. Only ONE for the whole rig!

To order your Bayou Jumper before OzarkCon, see

http://www.4sqrp.com/bayouJumper.php


SMALL ........but Not a Magnetic Loop Antenna

Maybe you remember the ole time twin lead vertical. How about a coax non-magnetic loop that is small and has some possibilities. My first loop was worth more experimenting. Best part is that NO butterfly capacitors or vacuum variables are needed :-) See:


dit

72/73....Walter Dufrain - K5EST

 



















--
Sent from Gmail Mobile


4QRP email blog 2017-1

Walter - K5EST
 


4QRP
The original email blog of the 4SQRP Group -- copyright February 2017
Walter - K5EST - Editor


This coming weekend

SSS Second Sunday Spring
February 12th

The Second Sunday Sprint is this coming Sunday, February 12th7:00-9:00 
pm CST (Monday, 0100-0300Z). The rules are simple. Go to the 4SQRP 
website <http://4sqrp.com> and click on "4SQRP on air activities" Scroll 
down to the bottom of that page and you will see a summary of the rules, 
plus links to where you submit your score and where you can get the 
complete rules.

If you tried to participate but nobody heard you (or you heard nobody), 
feel free to enter a score of 0 points, as long as you made an honest 
try for at least 15 minutes. Obviously, reporting a score of 0 is 
optional and won't affect anything, but it will give me an idea of how 
many people are participating.

I don't have 80M capability, but I understand 80M has been more friendly 
than 40M lately. It might be worth listening down there for a while.

72,

John, AA0VE
4SQRP Contest Coordinator



OzarkCon 2017

With less than 50 days until the pre-registration ends to the Premier MidWest QRP Conference, OzarkCon, please do not wait to pre-register! Do it now :-)

PrePaid Registrants will receive the following items in your package at the Registration desk when you arrive in Branson: 
1. Tickets for the prize drawings (two per registration) 
2. Meal tickets for the Friday night banquet dinner (if you ordered them) 
3. Souvenir callsign and name ID badge (if pre-registered and paid by the dates indicated on the website)

ALSO
an OzarkCon FIRST.....
The Hidden Oscillator

 

At the conclusion of the prize drawings on Saturday I’m going to activate a small rf oscillator and hide it somewhere in or around the Stonecastle. The person that returns it to me will receive an unbuilt Hy-Per-Mite* audio filter kit as a prize.

 The oscillator is set to approximately 7116.5 kHz and it switches on for about 1.5 seconds and off for about the same amount of time. You will be able to hear it with your cw receiver. (Actually it’s possible to "hear" it with just a portable AM shortwave receiver but during the ‘on’ time it will just quiet the receiver and you won’t get the nice CW note without a BFO). I can hear it with my County Comm GP-5/SSB receiver 125 feet away. I’ll let it run until someone finds it or until I have to leave on Sunday.

 It will be hidden in a “common” area that is accessible to everyone at any time. Nothing will have to be disassembled and nothing of any major consequence will have to be moved to find it. It will be stationary and its retrieval will not require you to be in an unsafe situation. 

Good luck.......73, Bill - KV6Z

Dummy Load QSO Party at O'Con

Be sure to bring along a portable rig, a dummy load and some QSL cards. There will be a fun operating event at the Stone Castle to make some QSO's on a dummy load. Suggested operating frequency is around 7040 and 7122KHz CW.

Special event station KØN will be on the air as well as WQ5RP on the dummy load. Make a QSO with KØN or WQ5RP and bring your QSL card to the station to be entered into a special prize drawing!

Terry, WA0ITP has provided some info on the OzarkCon Dummy Load Special Antenna that might be helpful to increase your signal strength.  Check it ot on Terry's web site.





The Bayou Jumper

Have you heard a "Jumper" on the air? This popular nostalgic kit has a huge following. Being "rock-bound" (crystal controlled) dread has sure changed over the years. The rock-bound has become an on the air status symbol. I hear operators moving frequencies to accommodate the the crystal bound stations. Seems like the nautical rules ......power boats give way to sail.

The rig has a socket for the old-style FT243 crystals, plus 7030 and 7122 kHz crystals and included crystal adapters. If you have old 7MHz Novice crystals, you can use them with this rig! AND only one toroid to wind in the receiver, and none in the transmitter. Only ONE for the whole rig!

To order your Bayou Jumper before OzarkCon, see

http://www.4sqrp.com/bayouJumper.php


SMALL ........but Not a Magnetic Loop Antenna

Maybe you remember the ole time twin lead vertical. How about a coax non-magnetic loop that is small and has some possibilities. My first loop was worth more experimenting. Best part is that NO butterfly capacitors or vacuum variables are needed :-) See:


dit

72/73....Walter Dufrain - K5EST

 




















Re: Hidden Oscillator

dekle <dekle@...>
 


Finding it will not be easy.
 
You'll need to be resourceful, creative, and, to some degree, lucky.
Imagine that it's a transmitter operated by the ICOBG* and it's sending instructions to the submarine fleet off the coast of Kansas.
It's your job to find it and prevent global destruction.
 
There's trouble at the Old Mill.
 
73
Bill
KV6Z
 
*International Coalition Of Bad Guys
 
 

----- Original Message -----
Sent: Tuesday, February 07, 2017 7:30 PM
Subject: Re: [4sqrp] Hidden Oscillator

 

Great idea Bill.  Any advice on rigs and antennas to find it?

72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 2/7/2017 4:20 PM, dekle@... [4sqrp] wrote:
 

            At the conclusion of the prize drawings on Saturday I’m going to activate a small rf oscillator and hide it somewhere in or around the Stonecastle. The person that returns it to me will receive an unbuilt Hy-Per-Mite* audio filter kit as a prize.

            The oscillator is set to approximately 7116.5 kHz and it switches on for about 1.5 seconds and off for about the same amount of time. You will be able to hear it with your cw receiver. (Actually it’s possible to "hear" it with just a portable AM shortwave receiver but during the ‘on’ time it will just quiet the receiver and you won’t get the nice CW note without a BFO). I can hear it with my County Comm GP-5/SSB receiver 125 feet away. I’ll let it run until someone finds it or until I have to leave on Sunday.

            It will be hidden in a “common” area that is accessible to everyone at any time. Nothing will have to be disassembled and nothing of any major consequence will have to be moved to find it. It will be stationary and its retrieval will not require you to be in an unsafe situation.

 

Good luck.

 

73

Bill

KV6Z

 

*The Hy-Per-Mite is a killer filter.  Check this out:

https://aa7ee.wordpress.com/2012/07/27/using-the-nm0s-hi-per-mite-filter-from-4sqrp-to-make-a-simple-40m-dc-cw-rx/

 






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This email has been checked for viruses by Avast antivirus software.
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Second Sunday Sprint

John Lonigro
 

The Second Sunday Sprint is this coming Sunday, February 12th, 7:00-9:00 pm CST (Monday, 0100-0300Z). The rules are simple. Go to the 4SQRP website <http://4sqrp.com> and click on "4SQRP on air activities" Scroll down to the bottom of that page and you will see a summary of the rules, plus links to where you submit your score and where you can get the complete rules.

If you tried to participate but nobody heard you (or you heard nobody), feel free to enter a score of 0 points, as long as you made an honest try for at least 15 minutes. Obviously, reporting a score of 0 is optional and won't affect anything, but it will give me an idea of how many people are participating.

I don't have 80M capability, but I understand 80M has been more friendly than 40M lately. It might be worth listening down there for a while.

72,

John, AA0VE
4SQRP Contest Coordinator


Re: Pixie success

Curt
 

I own several of the Pixie genre including a Tixie, Lil Squall, Sea Squirt, Tiny Tornado, and one of the Chinese clones. They have always interested me from the minimalist aspect. Have made a lot of QSOs with all of them as far as 1000 miles, very few 2xPixie QSOs though.  Never had one receive 20M and 40M at same time.  Would be happy to QSO with you, but none of mine would make 7.118.  If you post on QRPspots when QRV I can call you with the K1.

72, Curt KB5JO


Pixie success

Dennis Schaefer
 

I bought an assembled Pixie from eBay. It was in a little plastic box and only cost a little over $7.00. The Pixie is definitely a novelty rig, but an actual transceiver for $7.00 with free shipping from China can't be resisted.

I hooked up the antenna and heard lots of signals. It would hear many signals on 7.023 that my big rig wouldn't. I found out the reason was that it was simultaneously receiving on 7.023 and 14.046, with about 3 KHz bandwidth on both frequencies. Lots of very high CW tones!

I put a 40 meter external bandpass filter in the line and was able to have a QSO with WA5BDU, who is about 7 miles away.

I also made a contact with BDU on my Ham-Can. I built this a couple of years ago, but never got it to work. Some careful attention to solder connections finally made it work. I'd like to get a QSO out of the local area, so I'll listen on it and see if I can snag anyone. It is not on 7.122, it's more like 7.118.

Now to get the controls hooked up on the 20 meter One Watter I got from WK8S....

73,
Dennis, W5RZ


Re: Hidden Oscillator

WA0ITP
 

Great idea Bill.  Any advice on rigs and antennas to find it?
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 2/7/2017 4:20 PM, dekle@... [4sqrp] wrote:

 

            At the conclusion of the prize drawings on Saturday I’m going to activate a small rf oscillator and hide it somewhere in or around the Stonecastle. The person that returns it to me will receive an unbuilt Hy-Per-Mite* audio filter kit as a prize.

            The oscillator is set to approximately 7116.5 kHz and it switches on for about 1.5 seconds and off for about the same amount of time. You will be able to hear it with your cw receiver. (Actually it’s possible to "hear" it with just a portable AM shortwave receiver but during the ‘on’ time it will just quiet the receiver and you won’t get the nice CW note without a BFO). I can hear it with my County Comm GP-5/SSB receiver 125 feet away. I’ll let it run until someone finds it or until I have to leave on Sunday.

            It will be hidden in a “common” area that is accessible to everyone at any time. Nothing will have to be disassembled and nothing of any major consequence will have to be moved to find it. It will be stationary and its retrieval will not require you to be in an unsafe situation.

 

Good luck.

 

73

Bill

KV6Z

 

*The Hy-Per-Mite is a killer filter.  Check this out:

https://aa7ee.wordpress.com/2012/07/27/using-the-nm0s-hi-per-mite-filter-from-4sqrp-to-make-a-simple-40m-dc-cw-rx/

 




Re: Got my room booked!

Johnny AC0BQ
 

Thanks to you and Karen for doing a great job.
Cu at OZARKCON 17!!
Johnny 

On Tue, Feb 7, 2017 at 4:53 PM wg5f@... [4sqrp] <4sqrp@...> wrote:

Just booked our room for OzarkCon 2017 at the Stone Castle Hotel.

Looking forward to a great set of presentations..

Had more nice prize donations confirmed today.

Should be a terrific convention this year!

I'm anxious to see some of the items being built for show & tell.

72,

-Ed & Karen-

WG5F & W5KKM

--
Sent from Gmail Mobile


Re: Got my room booked!

Paul Smith
 

We will see u there

Paul


Sent from Outlook




From: 4sqrp@... <4sqrp@...> on behalf of wg5f@... [4sqrp] <4sqrp@...>
Sent: Tuesday, February 7, 2017 10:53 PM
To: 4sqrp@...
Subject: [4sqrp] Got my room booked!
 
 

Just booked our room for OzarkCon 2017 at the Stone Castle Hotel.

Looking forward to a great set of presentations..

Had more nice prize donations confirmed today.

Should be a terrific convention this year!

I'm anxious to see some of the items being built for show & tell.

72,

-Ed & Karen-

WG5F & W5KKM


Re: Preferred tone frequency

Bill Cromwell
 

Hi,

We should setup our radios for whatever we prefer. If there is no adjustment as Curt has mentioned we should use whatever that produces. I have one that is not adjustable and is 600 Hz. I dial the incoming signal to 600 Hz on my waterfall and *go*. I may install RIT on the rig to get me to my preferred 500 Hz. More likely I have better things to do so 600 it is.

73,

Bill KU8H

On 02/07/2017 05:49 PM, wb8yyy@yahoo.com [4sqrp] wrote:

My guess is our preferences mostly fit between 650 and 750 Hz. Note if a rig isn't adjustable, the offset between the transmitter and our favorite pitch gives our offset error.

73 Curt

--
bark less - wag more


Re: Preferred tone frequency

dekle@...
 

See 4sqrp Group message number 5214.

Bill
KV6Z


Got my room booked!

Ed Meyer, WG5F
 

Just booked our room for OzarkCon 2017 at the Stone Castle Hotel.

Looking forward to a great set of presentations..

Had more nice prize donations confirmed today.

Should be a terrific convention this year!

I'm anxious to see some of the items being built for show & tell.

72,

-Ed & Karen-

WG5F & W5KKM


Re: Preferred tone frequency

Curt
 

My guess is our preferences mostly fit between 650 and 750 Hz.  Note if a rig isn't adjustable,  the offset between the transmitter and our favorite pitch gives our offset error. 

73 Curt


Message to London sent earlier

Jim Sheldon
 

Due to a typographical error, here is a re-send of my last - it would
have been mostly unreadable. The proper sequence follows:

UCAMH UCAMH 20

MNTBU NKEPN IIYLX TDTSZ ATSBR

EEXTO YXMII RMEUR ASTER MOATT

EEMOX PECLO BXXWS FLNRX IELOE

CAEIE UIPBE WWALX NDPSX TTAEZ


W0EB


Hidden Oscillator

dekle@...
 

            At the conclusion of the prize drawings on Saturday I’m going to activate a small rf oscillator and hide it somewhere in or around the Stonecastle. The person that returns it to me will receive an unbuilt Hy-Per-Mite* audio filter kit as a prize.

            The oscillator is set to approximately 7116.5 kHz and it switches on for about 1.5 seconds and off for about the same amount of time. You will be able to hear it with your cw receiver. (Actually it’s possible to "hear" it with just a portable AM shortwave receiver but during the ‘on’ time it will just quiet the receiver and you won’t get the nice CW note without a BFO). I can hear it with my County Comm GP-5/SSB receiver 125 feet away. I’ll let it run until someone finds it or until I have to leave on Sunday.

            It will be hidden in a “common” area that is accessible to everyone at any time. Nothing will have to be disassembled and nothing of any major consequence will have to be moved to find it. It will be stationary and its retrieval will not require you to be in an unsafe situation.

 

Good luck.

 

73

Bill

KV6Z

 

*The Hy-Per-Mite is a killer filter.  Check this out:

https://aa7ee.wordpress.com/2012/07/27/using-the-nm0s-hi-per-mite-filter-from-4sqrp-to-make-a-simple-40m-dc-cw-rx/

 



Preferred tone frequency

davemrtn
 


I am not wanting to cause a long thread of responses to my question, but here it goes...

A few years ago when the Hi-Per-Mite was first released, there considerable discussion of the ideal or preferred tone frequency for cw.

Does know or remember the results of that discussion ?

What was the majority preference for tone freq. ?

NA1MH



Sent from my Verizon, Samsung Galaxy smartphone


Re: BJ stability

Curt
 

Honestly a varactor does not seem to be a huge impact on regen stability,  as these things can receive with high fidelity.  the varactor Q will vary some with bias but I am doubting any noticeable impact. 

My homebrew WBR has commercial varactors, and seems sharper than these receivers with makeshift varactors, but its only a coarse observation.

Has anyone measured their regens with a audio FFT like spectrogram?

73 curt


Re: BJ stability

RWeeks <neotoxo54@...>
 

http://qrpguys.apps-1and1.com/para80set

SENT FROM MY IPAD MINI
Rocky Weeks, AF5AF
East Arkansas Fur Takers, FTA Chap 29B
Arkansas Trappers Assoc.
South Western Arkansas Fur Takers, FTA Chap 29A

On Feb 6, 2017, at 17:19, kn2i.radio@... [4sqrp] <4sqrp@...> wrote:

 

Curt,

I have a BJ on order but am also interested in the Para80Set.  Would you mind giving us more information on it including ease of building and operating performance?  Thank you.

Dennis KN2I



---In 4sqrp@..., wrote :

Dave

I can't even remember my first CW operations as a novice, without a sidetone (but I still have the QSLs).  My second setup used an HW16, which has a sidetone (as every rig I have built and used perhaps since then). 

If you called this op who said your frequency was a bit low -- keep this in mind: the receive passband on a BJ is very wide compared to most anyone's receiver.  your ability to put your transmitter and receiver on same pitch is how well you match them by ear. 

I suspect all is well with your BJ. 

I imagine someone will post how to homebrew a sidetone in the BJ.  the rival Para80Set has both sidetone and electronic TR switching - so its a bit modern in these features!  Its a smaller board and isn't set up to be a front panel -- so guess what I have some drilling to do to get this thing put into a box. 

note a sidetone circuit can operate in parallel if you don't insist it come through your headphones.  I am a bit surprised they did not leave space on the board for sidetone circuitry, but needless to say it should fit easily inside the hobby lobby box. 

CUL Curt



On Monday, February 6, 2017 11:49 AM, David Wilcox wrote:


I did have one contact that said my frequency was a little low when I first called him but then was stable for the rest of the QSO.  He said my transmit frequency was right on, same as I had determined here at home.  I haven't had any other comments.

I do find the lack of a side tone to be very handicapping since my CW skill is poor.  I tried another small receiver near to the rig and that does help.

Dave K8WPE

> On Feb 6, 2017, at 9:41 AM, wb8yyy@... [4sqrp] <4sqrp@...> wrote:
>
> Curt


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