Date   

Wednesday Evening 40 and 80 meter Nets - Wed, 05/01/2019 8:00pm-9:00pm #cal-reminder

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

Reminder:
Wednesday Evening 40 and 80 meter Nets

When:
Wednesday, 1 May 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: FS QRP

bobby rolph
 

Hello George. Have you sold the one water? 73
Bobby Rolph
KB4QNR


Re: re :Magic box build, no sidetone

Jim Kortge
 

Ken,

Files for the MagicBox and SS-40 cases attached.

72,

Jim, K8IQY


PS...I need to get back with the 4 State QRP gang and maybe have them host these files on their web site.


On 4/29/2019 7:47 AM, Kenneth Ketner via Groups.Io wrote:
I have access to a 3D printer. I suspect others also would like to use your file to make a case for the combo. How can one obtain the file?

Ken Ketner
KA5ELD
PO Box 65135
Lubbock, TX 79464-5135


Re: re :Magic box build, no sidetone

Kenneth Ketner
 

I have access to a 3D printer. I suspect others also would like to use your file to make a case for the combo. How can one obtain the file?

Ken Ketner
KA5ELD
PO Box 65135
Lubbock, TX 79464-5135


Re: re :Magic box build, no sidetone

Jim Kortge
 

On 4/28/2019 10:26 AM, Kenneth Ketner via Groups.Io wrote:
Thanks Jim

You nailed it. That transistor had a short. Tested it with my Peak semiconductor tester. I stuck in another one. Now it toots quite well.

I am working to put together a Kortge transceiver using your class e tx, your rx, your audio filter and your variable xo, all linked with your magic box.

Your designs and manuals are great. Hope you will make more.

Thanks for the kind words Ken.  I'm getting too long in the tooth to do many more designs.  By the way, I have designed 3D printed cases for the MagicBox and SS-40 Rx/Tx combo if you have a way of printing them; you have a printer, local library has one, your UPS store has one etc.

Glad you found the defective transistor.  That is a rare failure; almost never happens with bipolar transistors.

72 and be well,

Jim, K8IQY


Re: re :Magic box build, no sidetone

Kenneth Ketner
 

Thanks Jim

You nailed it. That transistor had a short. Tested it with my Peak semiconductor tester. I stuck in another one. Now it toots quite well.

I am working to put together a Kortge transceiver using your class e tx, your rx, your audio filter and your variable xo, all linked with your magic box. 

Your designs and manuals are great. Hope you will make more.

Ken Ketner
KA5ELD
PO Box 65135
Lubbock, TX 79464-5135


Thoughts on the NM0S Hi Pass Filter

WA0ITP
 

NM0S has provided a very nice Hi Pass Filter Kit, http://www.4sqrp.com/4S-HPF.php, for 4SQRP to include in it's stable of kits. It is the same form factor as his earlier low pass filter, and there are no toroids to wind. Spiral coils on the pcb provide the needed inductance. IMHO this nice little filter hasn't received the attention that it deserves.

Why a Hi Pass?
Anyone using  a direct conversion receiver probably need one to prevent overload from local AM broadcast stations, unless that rcvr has a built in HPF.

My QTH is abt two miles from two kilowatt BCB stations, 1240kc and 1480 kc, and they have been a problem for every direct conversion receiver I've ever built - homebrew or commercial. Several years ago I added a very simple HPF to a project and it helped but didnt do the job completely.  So I added caps in series with the shunt inductors, to trap the BCB signals and that worked fb.

While my version is ok, Dave's rendition is superior (to be expected), and the kit's pcbs make it extremely easy to build and it looks great in it's case.  If you have an offending BCB station or two, make them disappear by changing C4 and C5 so as to make two series resonant traps.  There is a nice calculator here http://www.pronine.ca/lcf.htm

Attached are schematics and performance graphs for your review, all are screenshots from Tonnesoft's very excellent filter design program LC.  Thanks you Jim for a fantastic program and your willingness to share a free version.

Observe the awesome attenuation Dave's design has right off the bat. 1M attenuation is -96db!!!  My measly effort only attenuates 1Mc 36 dB..

If you need to use a high pass filter, the NM0S/4SQRP will do the job, and can't be beat for simplicity and effectiveness. http://www.4sqrp.com/4S-HPF.php  I just bought one !

This Saturday musing is brought to you buy the weather, is raining and cold here.  Questions and comments are welcome.

72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com


Re: re :Magic box build, no sidetone

Jim Kortge
 

On 4/26/2019 6:31 PM, Kenneth Ketner via Groups.Io wrote:
Greetings Jim:
Hi Ken,



I'm grateful for your reply.
The MB board I am building is marked V1.2B.
That's the latest version of the PCB.


I have a schematic also marked V1.2B. I don't have photo capabilities just now, so I can't send a photo (perhaps later if needed).
I was hoping that you might have a cell phone with camera to take a photo or two of the PCB as it currently exists.


The build passed all the sectional tests in the assembly manual prior to the sidetone section. I hear no sidetone after trying all positions of R32. The manual mentions no keying action. I simply powered up with a 13.8 linear bench supply, no tone with working phones plugged into J6.
Yes, that is correct, no keying, just a steady sidetone upon powering up the PCB.



Q14 and 15 are 2n3904 as supplied in the kit. Q16 is 2N7000.

I get the following voltages.
   Top of R25 and R26 10V; Q14 col 4V, base 1, emitter 0.5V;
That looks right.


top of R28 10V; Q15 col 10V, base 4V, emitter 0.0V ??fault??
Yes, the problem is here.  The base should be at 5 volts and the emitter about 4.3 volts.  It appears that the emitter is shorted to ground directly (solder blob?) and not connected to ground through the 220 Ohm emitter resistor.  The sidetone signal comes off of the emitter to Q16.


; R40 bottom 5V, top 4.9V; R38 top 4V; R37 top 0.0V.

I can send the whole board to you on my dime if that would help.
Well let's not do that yet.  Are there any hams in Lubbock, TX that can help you?  Do you have a good magnifier that you can use to look at the board in the area of R36?  Do you have the ability to unsolder parts without damaging the PCB?  If any of the above get a "NO" answer, then send me the PCB.  Use my callbook address:

Jim Kortge

PO Box 108

Fenton, MI 48430


I'm long in the tooth myself, Jim;>)
It ain't fun sometimes.....  :-)

72,

Jim, K8IQY


re :Magic box build, no sidetone

Kenneth Ketner
 

Greetings Jim:

I'm grateful for your reply. 
The MB board I am building is marked V1.2B. I have a schematic also marked V1.2B. I don't have photo capabilities just now, so I can't send a photo (perhaps later if needed). 

The build passed all the sectional tests in the assembly manual prior to the sidetone section. I hear no sidetone after trying all positions of R32. The manual mentions no keying action. I simply powered up with a 13.8 linear bench supply, no tone with working phones plugged into J6.

Q14 and 15 are 2n3904 as supplied in the kit. Q16 is 2N7000.

I get the following voltages.
   Top of R25 and R26 10V; Q14 col 4V, base 1, emitter 0.5V; top of R28 10V; Q15 col 10V, base 4V, emitter 0.0V ??fault??; R40 bottom 5V, top 4.9V; R38 top 4V; R37 top 0.0V.

I can send the whole board to you on my dime if that would help.

I'm long in the tooth myself, Jim;>)

vy 73


Ken Ketner
ARS KA5ELD
ARRL, RSGB, G-QRP
PO Box 65135, Lubbock, Texas 79464-5135


Re: Anyone know W5DLB Dennis Bailey?

Walter - K5EST
 

Ed, try,  W5DLB Dennis Bailey    dlb@... 
73,
Walter Dufrain - K5EST - QRPcw 




On Thu, Apr 25, 2019 at 4:02 PM <wg5f@...> wrote:
I was trying to contact Dennis Bailey W5DLB who was at OzarkCon but I cant seem to find an email address for him.
If you have contact information for him - please send it off list to: ed at meyertribe dot com
Thanks,
-Ed, WG5F-


Anyone know W5DLB Dennis Bailey?

Ed Meyer, WG5F
 

I was trying to contact Dennis Bailey W5DLB who was at OzarkCon but I cant seem to find an email address for him.
If you have contact information for him - please send it off list to: ed at meyertribe dot com
Thanks,
-Ed, WG5F-


FS QRP

George H. Gates
 

40 meter Universal one watter. Built in PC switch case. Digital read out. $45 shipped.
40 meter Rockmite II Built i PC switch case. Has tuneable audio filter added. Crystal sockets on back. $45 shipped
norcal FCC-1 frequency counter. Built in PC switch box. $40 shipped
Crystal checker. Built from kit in clear plastic case. Powered from usb.  $15 shipped. 
80 meter cricket 80a 2017. No case. $20 shipped
TNX George/W2BPI


Re: FS QRP

Robin Kidd <w4ien@...>
 

I would like to purchase the radios.  How do you want to be paid?  I can do PayPal if that is ok.

72/73,
EM73vx
Robin
G-QRP #12386
W4IEN 


On Apr 25, 2019, at 14:20, George H. Gates via Groups.Io <w2bpi1@...> wrote:

40 meter Universal one watter. Built in PC switch case. Digital read out. $45 shipped.
40 meter Rockmite II Built i PC switch case. Has tuneable audio filter added. Crystal sockets on back. $45 shipped
norcal FCC-1 frequency counter. Built in PC switch box. $40 shipped
Crystal checker. Built from kit in clear plastic case. Powered from usb.  $15 shipped. 
80 meter cricket 80a 2017. No case. $20 shipped
TNX George/W2BPI


FS QRP

George H. Gates
 

40 meter Universal one watter. Built in PC switch case. Digital read out. $45 shipped.
40 meter Rockmite II Built i PC switch case. Has tuneable audio filter added. Crystal sockets on back. $45 shipped
norcal FCC-1 frequency counter. Built in PC switch box. $40 shipped
Crystal checker. Built from kit in clear plastic case. Powered from usb.  $15 shipped. 
80 meter cricket 80a 2017. No case. $20 shipped
TNX George/W2BPI


FOXTRAVAGANZA!! Tonight!!

Dale Putnam
 



The FOXTRAVAGANZA happens Thursday evening, on 40 & 80, at 7pm MT, for the fastest 90 minutes in radio,
exchange. All the FOXES for the season, will be calling "CQ FOX"  and all the HOUNDS.. (that's everyone else) will
be answering or shooting at the FOXES.

- Signal Report
- QTH
- Operator's Name, and
- Power Output
Examples: 559 CO ET 1W
                579 NM DOC 5W

Then, after it is all over, and we are licking our wounds. We need to post our results, to the qfox reflector.
It's the celebration of a successful Winter Season. The results of that can be seen on http://qrpfoxhunt.org/
QRP Fox Hunt Home Page<http://qrpfoxhunt.org/>
A QRP Fox Hunt is a series of 90 minute Amateur Radio events during which low-power (QRP) stations, or "Hounds," attempt to make contact with specific QRP stations designated as "The Fox."
qrpfoxhunt.org


Remember.. only 5 watts. 2 bands. 90 minutes.
and the whole thing is about propagation study.
check out the maps for the season. Tells the tale of props!!!
http://www.k4oaq.com/fox/foxSignUp.php

or find us on FB.


Good Luck

WC7S WY Lee 5w


Re: 40m Net

w2sh@...
 

Bill ran a heavily populated 4SQRP net that lasted 50 minutes.  I joined it during
WA9PWP's QSO.  Staying with it to the end meant finding the 80m net had finished.

Here's how sigs were in northern NJ

WA9PWP     Paul       WI               579
N4DR           Marc      MD              589
K4VIG          Gary      TN               589
K3NLT         Russ      VA               589
WB5OJJ      Al           TX               579
K4KRW       Richard   NC             579/589
WA0ITP      Terry       IA                579
W2SH         Chas       NJ               Received 549
KK4ITX        John       FL               449
KV6Z           Bill          OK (NCS)   579

Tentec 539 (Argo 6) with inverted L up 86' & out 68'.

72,

Charles (aka Chas),  W2SH


From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of dekle <dekle@...>
Sent: Wednesday, April 24, 2019 22:09
To: main@4SQRP.groups.io
Subject: [4SQRP] 40m Net
 
Great one tonight!!!
QNIs were:

WA9PWP     Paul       WI
N4DR           Marc      MD
K4VIG          Gary      TN
K3NLT         Russ      VA
WB5OJJ      Al           TX
K4KRW       Richard     NC
WA0ITP      Terry       IA
W2SH         Chas       NJ
KK4ITX        John       FL
KV6Z           Bill          OK (NCS)

I think I got everyone who tried.
Thanks all - that was fun.
C U next week.

73
Bill
KV6Z


Tonight's DMR net

Robert
 

Great Net, Great Topic (tnx to Terry WA0ITP)

TONIGHT'S CHECK INS

WA0ITP TERRY

W4RK BILL

WG5F ED

NK8O CHARLES

N0SO MIKE

K0BOG CHUCK

N0MPM MIKE

W4DNQ RON

AC0BQ JOHNNY

AB0AH LARRY

THANKS TO ALL OF TONIGHT'S PARTICIPANTS


73'S FROM OUT IN THE STICKS

BERT

N0YJ


ARRL Rocky Mountain Division Conference

AG1P Ron
 

I have been in contact with the coordinator of the Utah Hamfest who is sponsoring the 2019 ARRL Rocky Mountain Division conference August 8th thru 10th in Ogden Utah. https://rmdc2019.org/  Marvin KA7TPH is asking us if any of our members will be attending the event.  He is also looking for someone to give a QRP presentation as part of the conference.  This would be good way to promote our aspect of the hobby to the QRO community. 

 

If planning to attend or wish to give a presentation, please contact me off list at my call at earthlink dot net.

 

72 - Ron - AG1P

4SQRP Volunteer Corporate Secretary

4SQRP Volunteer Webmaster

 

 


40m Net

dekle <dekle@...>
 

Great one tonight!!!
QNIs were:

WA9PWP     Paul       WI
N4DR           Marc      MD
K4VIG          Gary      TN
K3NLT         Russ      VA
WB5OJJ      Al           TX
K4KRW       Richard     NC
WA0ITP      Terry       IA
W2SH         Chas       NJ
KK4ITX        John       FL
KV6Z           Bill          OK (NCS)

I think I got everyone who tried.
Thanks all - that was fun.
C U next week.

73
Bill
KV6Z


Re: 80 Meter Net Report

Paul Smith
 

Cool net Johnny,
This is the first one I have been able to hear for a while. 72
Paul

Sent from Outlook


From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of Johnny Matlock <jomatlock@...>
Sent: Thursday, April 25, 2019 1:51 AM
To: 4SQRP@groups.io
Subject: [4SQRP] 80 Meter Net Report
 
ge Group
Nice net Tonight on 80 Meters:
Check in's were:

N0NBD PAUL
K3NLT RUSS
KL7IXI MIKE
AND
WA0ITP TERRY.

FYI
I listened to the 40 meter net for a while and Bill was sacking them up!
I could almost hear him on his peaks.

CU all next week, if the T storms stay away!
72
Johnny AC0BQ

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