Date   

Wednesday Evening 40 and 80 meter Nets - Wed, 06/03/2020 #cal-notice

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

Wednesday Evening 40 and 80 meter Nets

When:
Wednesday, 3 June 2020
20:00 to 21:00
(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 is WQ5RP/ACØBQ 

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 operator is Johnny ACØBQ 

* 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.


Re: Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 06/03/2020 20:00-21:00 #cal-reminder

Johnny AC0BQ
 

Good afternoon Group
I have to attend my monthly Civic obligation.
Bert, N0YJ has offered to Call the 40 and 80 meter Nets tonight.
Have fun, good luck!
72
Johnny ACØBQ 

On Wed, Jun 3, 2020 at 3:00 PM main@4SQRP.groups.io Calendar <main@4sqrp.groups.io> wrote:

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 3 June 2020, 20:00 to 21:00, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

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

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 operator is Johnny ACØBQ 

* 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.

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


Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 06/03/2020 20:00-21:00 #cal-reminder

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

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 3 June 2020, 20:00 to 21:00, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

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

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 operator is Johnny ACØBQ 

* 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.


Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 06/03/2020 20:00-21:00 #cal-reminder

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

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 3 June 2020, 20:00 to 21:00, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

Description: The 40 Meter Net will be at 8:00 pm central time  on 7.122 +-. QRM
NCS is WQ5RP/AC0BQ

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 operator is Johnny AC0BQ.

* 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.


Re: 75A - Kits in the 190 Serial Number Range - Do They Need The Modification?

JOE CULWELL
 

Yes, that would make them more like the N75a.


On Mon, Jun 1, 2020 at 1:17 PM ohwenzelph via groups.io <Ohwenzelph=yahoo.com@groups.io> wrote:
What about removing R47 and the first hundred kits?


Re: problem with my 4SQRP Ozark Patrol Radio (Fixed!)

Herb Parsons <radioherb@...>
 

Curt,

It was an open land on the board. Thanks again for your help.

Herb


-----Original Message-----
From: Curt via groups.io <rhulett1@...>
To: main <main@4SQRP.groups.io>
Sent: Tue, Jun 2, 2020 8:36 am
Subject: Re: [4SQRP] problem with my 4SQRP Ozark Patrol Radio (Fixed!)

Herb,

Happy you found the problem.  Assume that it was solder at R3 or at the regen and not a broken land on the board. 

Almost every problem have had with a kit has been a missing or poor soldered connection.

Curt KB5JO


SOLD - FS wooden box for radio project

Paul Goemans
 

Thanks all!
 
Paul Goemans WA9PWP
Stoughton, WI


Re: FS wooden box for radio project?

John
 

Would be a shame to destroy it.   Those tuning eyes are magical.
John K5MO

On Tue, Jun 2, 2020 at 12:13 PM keith ford via groups.io <kf4tap=yahoo.com@groups.io> wrote:
Sweet! I would be interested in the entire unit.   Keith 


Sent from Yahoo Mail for iPad

On Tuesday, June 2, 2020, 10:53, Paul Goemans <wa9pwp@...> wrote:

Hello all,
  I have an old piece of test equipment, in a nice wooden box with a removable hinged lid. It is a Beckman RC16B2 conductivity bridge from a local SK estate. Maybe someone wants to build a radio into it? Dimensions are 11”wide x 8 3/4” deep x 8” high. See picture. Say $10 plus what it costs to ship, guessing $10 to $15. Look at those knobs! To lighten it up for shipping,  I can remove the “guts” and leave the front panel. Or take the whole thing! Interested?
 
Industrial Instruments Inc (Beckman) RC16B2 Conductivity Bridge
 
Paul Goemans WA9PWP
Stoughton, WI


Re: FS wooden box for radio project?

keith ford
 

Sweet! I would be interested in the entire unit.   Keith 


Sent from Yahoo Mail for iPad

On Tuesday, June 2, 2020, 10:53, Paul Goemans <wa9pwp@...> wrote:

Hello all,
  I have an old piece of test equipment, in a nice wooden box with a removable hinged lid. It is a Beckman RC16B2 conductivity bridge from a local SK estate. Maybe someone wants to build a radio into it? Dimensions are 11”wide x 8 3/4” deep x 8” high. See picture. Say $10 plus what it costs to ship, guessing $10 to $15. Look at those knobs! To lighten it up for shipping,  I can remove the “guts” and leave the front panel. Or take the whole thing! Interested?
 
Industrial Instruments Inc (Beckman) RC16B2 Conductivity Bridge
 
Paul Goemans WA9PWP
Stoughton, WI


FS wooden box for radio project?

Paul Goemans
 

Hello all,
  I have an old piece of test equipment, in a nice wooden box with a removable hinged lid. It is a Beckman RC16B2 conductivity bridge from a local SK estate. Maybe someone wants to build a radio into it? Dimensions are 11”wide x 8 3/4” deep x 8” high. See picture. Say $10 plus what it costs to ship, guessing $10 to $15. Look at those knobs! To lighten it up for shipping,  I can remove the “guts” and leave the front panel. Or take the whole thing! Interested?
 
Industrial Instruments Inc (Beckman) RC16B2 Conductivity Bridge
 
Paul Goemans WA9PWP
Stoughton, WI


Re: problem with my 4SQRP Ozark Patrol Radio (Fixed!)

Curt
 

Herb,

Happy you found the problem.  Assume that it was solder at R3 or at the regen and not a broken land on the board. 

Almost every problem have had with a kit has been a missing or poor soldered connection.

Curt KB5JO


Re: problem with my 4SQRP Ozark Patrol Radio (Fixed!)

Curt
 

Herb,

Wonderful! glad you have found the problem, you will have a lot of fun with the radio, I sure enjoy mine.

73, Curt KB5JO


Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 06/03/2020 20:00-21:00 #cal-reminder

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

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 3 June 2020, 20:00 to 21:00, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

Description: The 40 Meter Net will be at 8:00 pm central time  on 7.122 +-. QRM
NCS is WQ5RP/AC0BQ

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 operator is Johnny AC0BQ.

* 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.


Re: problem with my 4SQRP Ozark Patrol Radio (Fixed!)

Johnny AC0BQ
 

Hello Jim
Thanks for your excellent troubleshooting support
on this problem.
Very kind of you to jump in.
Very 73
Stay Safe

Johnny ACØBQ 

On Mon, Jun 1, 2020 at 5:55 PM n5ib_2 <n5ib@...> wrote:
Congrats, Herb!  Good catch.
As a fan of the British mysteries, I love a good detective story where the perpetrator is discovered by good old fashioned sleuthing. Let the evidence point the way.

BTW - don't you just hate it when you miss the first part of the mystery show....  You'll find out who dunnit, but you won't know what he done   :^))

Jim, N5IB








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


Re: problem with my 4SQRP Ozark Patrol Radio (Fixed!)

n5ib_2
 

Congrats, Herb! Good catch.
As a fan of the British mysteries, I love a good detective story where the perpetrator is discovered by good old fashioned sleuthing. Let the evidence point the way.

BTW - don't you just hate it when you miss the first part of the mystery show.... You'll find out who dunnit, but you won't know what he done :^))

Jim, N5IB


Re: problem with my 4SQRP Ozark Patrol Radio (Fixed!)

Herb Parsons <radioherb@...>
 

Hi Jerry,

I just found out that the connection between the regen pot and R3 was open. I ran a wire between them and the set came alive. Thanks so much for your help. I really appreciate it!

Herb


-----Original Message-----
From: Jerome Wysocki <jeromewysocki48@...>
To: main <main@4SQRP.groups.io>
Sent: Sun, May 31, 2020 9:33 pm
Subject: Re: [4SQRP] problem with my 4SQRP Ozark Patrol Radio

Hi Herb,
The fact that it squeals seems to indicate the audio section is at least working. Not quite sure why voltages around Q1 are not right, so for some reason the problem seems to gravitate there. For Q1, I tried replacing it with a 2N2222, and that worked fine for me, but still your incorrect voltages around Q1 gets me wondering.
... Jerry Wysocki, KC9JXE



Re: problem with my 4SQRP Ozark Patrol Radio (Fixed!)

Herb Parsons <radioherb@...>
 

Hi John,
I just found out that the connection between the regen pot and R3 was open. I ran a wire between them and the set came alive. Thanks so much for your help.
Herb



-----Original Message-----
From: John Lonigro <jonigro@...>
To: main <main@4SQRP.groups.io>
Sent: Mon, Jun 1, 2020 8:34 am
Subject: Re: [4SQRP] problem with my 4SQRP Ozark Patrol Radio

Just thinking out loud here, but what if both D2 and D3 were installed backwards?  I don't have an Ozark Patrol.  I'm just relying on Curt's observations.

72,
John, AA0VE

On 6/1/20 6:28 AM, Curt via groups.io wrote:
Herb

No voltage on Q1 base implies short to ground in that circuit.  Absent an internal B-E short, the voltage should be at least 1/2V across D2 and D3.  Since you have replaced that transistor, the other possibles would be BOTH D2 & D3 shorted ( not likely ), R10 (not likely), or C4 ( possible but not likely ).

Did you ever try headphones? 

Am at a loss. Sorry.

Curt


Re: problem with my 4SQRP Ozark Patrol Radio (Fixed!)

Herb Parsons <radioherb@...>
 

Hi Curt,

My problem is solved. While checking voltages on R3 and the regen pot, I found 0 volts on R3. The connection between R3 and the pot was open! I ran a wire from the pot to R3 and the set came alive. Thanks so much for your help!

Herb


-----Original Message-----
From: Curt via groups.io <rhulett1@...>
To: main <main@4SQRP.groups.io>
Sent: Mon, Jun 1, 2020 3:46 pm
Subject: Re: [4SQRP] problem with my 4SQRP Ozark Patrol Radio

Just for info, my radio (which works) has following readings

On Mon, Jun 1, 2020 at 09:59 AM, n5ib_2 wrote:
1) battery voltage, at the battery +terminal, or at the top of R1 = 8.6VDC

2) voltage at the junction of R1 and R2, or at the + lead of C3 = 7.9

3) voltage at the top of the regen pot, or + terminal of C13 = 7.85

4) voltage at the junction of R3 and the regen pot (other end of the pot) = 3.64
... also check that this voltage decreases as you swing the regen pot through its range towards full clockwise
... then put the pot back to full counterclockwise for the rest of these checks

5) voltage at the R3 / R10 junction, or the base of Q1 = 0.53
Curt KB5JO


Re: problem with my 4SQRP Ozark Patrol Radio (Fixed!)

Herb Parsons <radioherb@...>
 

Hi Jim,

Thank you for pointing me to the problem. When I got to #4 voltage check on your list, I found 0 volts on R3. I found the connection from R3 to the pot was open! As soon as I connected a wire from R3 to the pot, the set came alive. Thanks so much for your help. It is so appreciated!

Herb


-----Original Message-----
From: n5ib_2 <n5ib@...>
To: main <main@4SQRP.groups.io>
Sent: Mon, Jun 1, 2020 12:59 pm
Subject: Re: [4SQRP] problem with my 4SQRP Ozark Patrol Radio

Hi Herb,

I'm presuming you've fixed the earlier problem of low voltage on the Q3 collector?

Before replacing any more parts, do a little voltage detective work for us. This will give some clues as to whether the problem is Q1 itself, or its biasing circuit. With the regen pot fully counterclockwise (minimum resistance, maximum regeneration) measure the following with respect to ground (record the full resolution of your voltmeter):

1) battery voltage, at the battery +terminal, or at the top of R1

2) voltage at the junction of R1 and R2, or at the + lead of C3

3) voltage at the top of the regen pot, or + terminal of C13

4) voltage at the junction of R3 and the regen pot (other end of the pot)
... also check that this voltage decreases as you swing the regen pot through its range towards full clockwise
... then put the pot back to full counterclockwise for the rest of these checks

5) voltage at the R3 / R10 junction, or the base of Q1

The too high voltage at Q1 collector could be due to a short to ground at the base of Q1, or it couod be due to an open circuit in its base bias circuit. The above measurements ought to narrow it down.

Now, if you have time... temporarily unsolder and lift the base lead of Q1 and repeat the measurements above. For (5) above probe the PCB pad for the base of Q1 , not the base lead itself.

Neither a backwards nor forwards D2 and/or D3 would short Q1-B to ground unless *both* diodes were shorted.

Jim, N5IB



Re: problem with my 4SQRP Ozark Patrol Radio

Curt
 

Just for info, my radio (which works) has following readings

On Mon, Jun 1, 2020 at 09:59 AM, n5ib_2 wrote:
1) battery voltage, at the battery +terminal, or at the top of R1 = 8.6VDC

2) voltage at the junction of R1 and R2, or at the + lead of C3 = 7.9

3) voltage at the top of the regen pot, or + terminal of C13 = 7.85

4) voltage at the junction of R3 and the regen pot (other end of the pot) = 3.64
... also check that this voltage decreases as you swing the regen pot through its range towards full clockwise
... then put the pot back to full counterclockwise for the rest of these checks

5) voltage at the R3 / R10 junction, or the base of Q1 = 0.53
Curt KB5JO