Date   

Re: 80 meter net

gary Lyons
 

Johnny & gang,

I tried but a no go tonite. Strong thunderstorm over the county next to with impressive lightning displays. I left my antenna unhooked. Maybe next week. (Fingers crossed)

73,
Gary/w0gx


On Wed, Jun 20, 2018, 9:53 PM Johnny Matlock <jomatlock@...> wrote:
Well 
80 meters was a little thin and a lot noisy, static crashes were strong.

Checking in were:
KK5IB in AR
N0EVH portable
And 
KV6Z from OK.
Thanks guys 
Cu next week 
72
Johnny AC0BQ 
--
Check out the 4SQRP website at 4sqrp.com


Re: 40m Net

Ruth A Mumaw
 

I was there, but very rough copy. Your report was 339 with QSB and QRN. I will be on next week again, then back to alternate weeks. Radio K2 at 5 watts.   Russ



On June 20, 2018, at 10:13 PM, dekle <dekle@...> wrote:


Not too bad tonight.
QNIs were:

W7KFI        Susan     MS
N0XM         Mike        KS
KA8ONW   Mark        MI
WA9PWP   Paul        WI
AC0BQ      Johnny    KS

I also think I got K3NLT - Russ in VA  - but the SSB QRM came up so bad that I'm not 100% positive.
I got the K3 part clearly but every time he sent the rest of his call the SSB ducks started quacking.
The KS stations were the loudest ones tonight.

Thanks all for trying.
See you next week.

73
Bill
KV6Z


40m Net

dekle <dekle@...>
 

Not too bad tonight.
QNIs were:

W7KFI        Susan     MS
N0XM         Mike        KS
KA8ONW   Mark        MI
WA9PWP   Paul        WI
AC0BQ      Johnny    KS

I also think I got K3NLT - Russ in VA  - but the SSB QRM came up so bad that I'm not 100% positive.
I got the K3 part clearly but every time he sent the rest of his call the SSB ducks started quacking.
The KS stations were the loudest ones tonight.

Thanks all for trying.
See you next week.

73
Bill
KV6Z


80 meter net

Johnny AC0BQ
 

Well 
80 meters was a little thin and a lot noisy, static crashes were strong.

Checking in were:
KK5IB in AR
N0EVH portable
And 
KV6Z from OK.
Thanks guys 
Cu next week 
72
Johnny AC0BQ 
--
Check out the 4SQRP website at 4sqrp.com


Re: Parallel Resistance calculator

Howard Weinstein <wa3mck@...>
 

Or you could immerse them in oil and make a unique dummy load

"Quis custodiet ipsos custodes?”

On Jun 20, 2018, at 20:45, Nick Kennedy <kennnick@...> wrote:

This reminds me of an article in QST in July 1963 called "Euclid and a quart of resistors". It showed how to take a quantity of resistors of a single value (say you have a quart of 47 ohm, 1% resistors ...) and combine them to produce any value, exactly.

I guess I'm regressing to my youth because I looked up that 55 year old article and ran though a couple examples to see that it worked. I don't think it really has much practical value - it's just an interesting demonstration of a technique.

73-

Nick, WA5BDU

On Wed, Jun 20, 2018 at 2:45 PM WA0ITP <wa0itp@...> wrote:
A while back someone  posted, on some list, a link to a calculator that provided abt 15 or so parallel resistor combination which matched a desired value that was entered into the calculatorMatching parallel values were tabulated as were error deviations in percent. Alas I lost the email with the link.

Google is not my friend on this.  Did anyone here see and save that email/link?  Thanks for checking, appreciate it.
-- 
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com


Wednesday Evening 40 and 80 meter Nets - Wed, 6/20/18 #cal-notice

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

Wednesday Evening 40 and 80 meter Nets

When:
Wednesday, 20 June 2018
8:00pm to 9:00pm
(GMT-05:00) America/Chicago

Where:
40 and 80 Meters

Description:
The 40 Meter Net will be at 8:00 pm central or 0100 UTC on 7.122 +-.
NCS will be Bill KV6Z.

Wednesday evening 80 Meter CW Net. will be at 0130 UTC Thursday (8:30PM Central Time Wednesday). 
The net will be called on 3.564 MHz +/- QRM.



Net control operators are Johnny AC0BQ or Paul N0NBD.


Re: Parallel Resistance calculator

Nick Kennedy <kennnick@...>
 

This reminds me of an article in QST in July 1963 called "Euclid and a quart of resistors". It showed how to take a quantity of resistors of a single value (say you have a quart of 47 ohm, 1% resistors ...) and combine them to produce any value, exactly.

I guess I'm regressing to my youth because I looked up that 55 year old article and ran though a couple examples to see that it worked. I don't think it really has much practical value - it's just an interesting demonstration of a technique.

73-

Nick, WA5BDU

On Wed, Jun 20, 2018 at 2:45 PM WA0ITP <wa0itp@...> wrote:
A while back someone  posted, on some list, a link to a calculator that provided abt 15 or so parallel resistor combination which matched a desired value that was entered into the calculatorMatching parallel values were tabulated as were error deviations in percent. Alas I lost the email with the link.

Google is not my friend on this.  Did anyone here see and save that email/link?  Thanks for checking, appreciate it.
-- 
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com


Re: Freq. mite and MFJ-9040

Kelly <n3hsy@...>
 

Dave et al,
Thanks so much for the help. Had to resort to a capacitor T’ed off the back of the so-239 and no jumpers. Seems to be working well just hold the key down before you close the switch and it reads 3 digits to right of decimal! Very nice addition to the rig. 

72/73
AE5II 
Kelly


On Jun 20, 2018, at 15:43, Dave Benson <davek1swl@...> wrote:

Kelly-

Wayne's correct about not needing any jumpers. :-)

Try taking a signal off the junction of R41 ('VFO DRV) and Q1.  It's a buffered sample of the local oscillator signal from U1.

73- Dave Benson, K1SWL
(Freq-Mite Designer)

On Wed, Jun 20, 2018 at 2:34 PM, Paul Smith <n0nbd@...> wrote:

Kelly,

I have the 9020,30 and 40 and had never thought of putting the Freq-Mite in them. Cool idea! All of mine have pencil marks for the appx spots for watering holes. MFJ has the manuals for a free download. I was reading and see the VFO is 4.85 to 5 Mhz I could not dope out where to sample the frequency tho... maybe someone else will chime in good luck de Paul N0NBD


Sent from Outlook




From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of Kelly <n3hsy@...>
Sent: Wednesday, June 20, 2018 3:21 PM
To: 4SQRP@groups.io
Subject: [4SQRP] Freq. mite and MFJ-9040
 
Looking for answers. ... freqMite is installed and working... but don’t know where to sample RF on the board and what is correct offset pin jumper settings. Now all jumpers on as per manual I hear only 0000. Any one have this rig / combo?? Any help greatly appreciated, thanks es 72/73

AE5II
Kelly





Re: Parallel Resistance calculator

Howard Weinstein <wa3mck@...>
 

Ditto - It’s more fun to do the math!
Howie WA3MCK 

"Quis custodiet ipsos custodes?”

On Jun 20, 2018, at 16:47, John T. Fitzer <John.fitzer@...> wrote:

You don’t need a specific calculator, Just keep in mind that for parallel values of resistors the equivalent resistance will always be lower than the lowest value of any one resistor in the parallel combination. The easiest way to calculate the needed value of a parallel resistor combination is to convert all values of resistance into conductance. The value of any resistance in mho is equal to 1/R where R is resistance in ohms. As an example let’s say you have an 81 ohm resistor and you want to parallel that with some value to get 50 ohms. 1/50=0.02 – 1/81=0.012345679=0.007654321 mho of additional conductance required =1/0.007654321 ohms =130.6451613 ohms. Nearest standard value = 130 ohm 5%. If you want to find the parallel resistance of 2 or more resistance, simply convert each resistance to conductance, add them all together then convert back to ohms by taking the reciprocal of the total conductance, i.e. R total = 1/ 1/R1+1/R2+1/R3 etc. Example the parallel combination of a 100 ohm, 150 ohm, & 180 ohm resistors in parallel = 1/100 = 0.01 + 1/150 =0.006666667 + 1/180 = 0.005555556 =0.022222222 mho = 1/0.022222222 = 45 ohm. I hope this helps

 

From: main@4SQRP.groups.io [mailto:main@4SQRP.groups.io] On Behalf Of Jeff Collins
Sent: Wednesday, June 20, 2018 3:11 PM
To: main@4SQRP.groups.io; 4sqrpio
Subject: Re: [4SQRP] Parallel Resistance calculator

 

Dear WA0ITP,

    Try this: https://gock.net/resistor/

    Or this: parallel resistor calculator reverse

Thank you,
 
Jeffrey R. Collins - W7GRV
FCC(SW) USN, Ret.
BS, EMT-P, FF I/II
Training Oficer -
Birch Tree Volunteer Fire and Rescue
Member of Missouri Region G HazMat Team

On 6/20/2018 2:45 PM, WA0ITP wrote:

A while back someone  posted, on some list, a link to a calculator that provided abt 15 or so parallel resistor combination which matched a desired value that was entered into the calculator.  Matching parallel values were tabulated as were error deviations in percent. Alas I lost the email with the link.

Google is not my friend on this.  Did anyone here see and save that email/link?  Thanks for checking, appreciate it.

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

 


Re: Parallel Resistance calculator

John T. Fitzer
 

You don’t need a specific calculator, Just keep in mind that for parallel values of resistors the equivalent resistance will always be lower than the lowest value of any one resistor in the parallel combination. The easiest way to calculate the needed value of a parallel resistor combination is to convert all values of resistance into conductance. The value of any resistance in mho is equal to 1/R where R is resistance in ohms. As an example let’s say you have an 81 ohm resistor and you want to parallel that with some value to get 50 ohms. 1/50=0.02 – 1/81=0.012345679=0.007654321 mho of additional conductance required =1/0.007654321 ohms =130.6451613 ohms. Nearest standard value = 130 ohm 5%. If you want to find the parallel resistance of 2 or more resistance, simply convert each resistance to conductance, add them all together then convert back to ohms by taking the reciprocal of the total conductance, i.e. R total = 1/ 1/R1+1/R2+1/R3 etc. Example the parallel combination of a 100 ohm, 150 ohm, & 180 ohm resistors in parallel = 1/100 = 0.01 + 1/150 =0.006666667 + 1/180 = 0.005555556 =0.022222222 mho = 1/0.022222222 = 45 ohm. I hope this helps

 

From: main@4SQRP.groups.io [mailto:main@4SQRP.groups.io] On Behalf Of Jeff Collins
Sent: Wednesday, June 20, 2018 3:11 PM
To: main@4SQRP.groups.io; 4sqrpio
Subject: Re: [4SQRP] Parallel Resistance calculator

 

Dear WA0ITP,

    Try this: https://gock.net/resistor/

    Or this: parallel resistor calculator reverse

Thank you,
 
Jeffrey R. Collins - W7GRV
FCC(SW) USN, Ret.
BS, EMT-P, FF I/II
Training Oficer -
Birch Tree Volunteer Fire and Rescue
Member of Missouri Region G HazMat Team

On 6/20/2018 2:45 PM, WA0ITP wrote:

A while back someone  posted, on some list, a link to a calculator that provided abt 15 or so parallel resistor combination which matched a desired value that was entered into the calculator.  Matching parallel values were tabulated as were error deviations in percent. Alas I lost the email with the link.

Google is not my friend on this.  Did anyone here see and save that email/link?  Thanks for checking, appreciate it.

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

 


Re: Freq. mite and MFJ-9040

Dave Benson
 

Kelly-

Wayne's correct about not needing any jumpers. :-)

Try taking a signal off the junction of R41 ('VFO DRV) and Q1.  It's a buffered sample of the local oscillator signal from U1.

73- Dave Benson, K1SWL
(Freq-Mite Designer)

On Wed, Jun 20, 2018 at 2:34 PM, Paul Smith <n0nbd@...> wrote:

Kelly,

I have the 9020,30 and 40 and had never thought of putting the Freq-Mite in them. Cool idea! All of mine have pencil marks for the appx spots for watering holes. MFJ has the manuals for a free download. I was reading and see the VFO is 4.85 to 5 Mhz I could not dope out where to sample the frequency tho... maybe someone else will chime in good luck de Paul N0NBD


Sent from Outlook




From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of Kelly <n3hsy@...>
Sent: Wednesday, June 20, 2018 3:21 PM
To: 4SQRP@groups.io
Subject: [4SQRP] Freq. mite and MFJ-9040
 
Looking for answers. ... freqMite is installed and working... but don’t know where to sample RF on the board and what is correct offset pin jumper settings. Now all jumpers on as per manual I hear only 0000. Any one have this rig / combo?? Any help greatly appreciated, thanks es 72/73

AE5II
Kelly





Re: Parallel Resistance calculator

Jeff Collins
 

Dear WA0ITP,

    Try this: https://gock.net/resistor/

    Or this: parallel resistor calculator reverse

Thank you,

Jeffrey R. Collins - W7GRV
FCC(SW) USN, Ret.
BS, EMT-P, FF I/II
Training Oficer -
Birch Tree Volunteer Fire and Rescue
Member of Missouri Region G HazMat Team
On 6/20/2018 2:45 PM, WA0ITP wrote:

A while back someone  posted, on some list, a link to a calculator that provided abt 15 or so parallel resistor combination which matched a desired value that was entered into the calculator.  Matching parallel values were tabulated as were error deviations in percent. Alas I lost the email with the link.

Google is not my friend on this.  Did anyone here see and save that email/link?  Thanks for checking, appreciate it.
-- 
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com


Re: Freq. mite and MFJ-9040

Wayne Dillon
 

Kelly,
Try removing ALL the jumpers as there is no Khz portion of the offset, it's just 12Mhz and no Khz.
Just a thought,
Wayne - NQ0RP

On Wed, Jun 20, 2018 at 1:34 PM, Paul Smith <n0nbd@...> wrote:

Kelly,

I have the 9020,30 and 40 and had never thought of putting the Freq-Mite in them. Cool idea! All of mine have pencil marks for the appx spots for watering holes. MFJ has the manuals for a free download. I was reading and see the VFO is 4.85 to 5 Mhz I could not dope out where to sample the frequency tho... maybe someone else will chime in good luck de Paul N0NBD


Sent from Outlook




From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of Kelly <n3hsy@...>
Sent: Wednesday, June 20, 2018 3:21 PM
To: 4SQRP@groups.io
Subject: [4SQRP] Freq. mite and MFJ-9040
 
Looking for answers. ... freqMite is installed and working... but don’t know where to sample RF on the board and what is correct offset pin jumper settings. Now all jumpers on as per manual I hear only 0000. Any one have this rig / combo?? Any help greatly appreciated, thanks es 72/73

AE5II
Kelly






--
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
God Bless from Wayne Dillon - NQ0RP



Wednesday Evening 40 and 80 meter Nets - Wed, 6/20/18 8:00pm-9:00pm #cal-reminder

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

Reminder:
Wednesday Evening 40 and 80 meter Nets

When:
Wednesday, 20 June 2018
8:00pm to 9:00pm
(GMT-05:00) America/Chicago

Where:
40 and 80 Meters

Description:
The 40 Meter Net will be at 8:00 pm central or 0100 UTC on 7.122 +-.
NCS will be Bill KV6Z.

Wednesday evening 80 Meter CW Net. will be at 0130 UTC Thursday (8:30PM Central Time Wednesday). 
The net will be called on 3.564 MHz +/- QRM.



Net control operators are Johnny AC0BQ or Paul N0NBD.

View Event.


Parallel Resistance calculator

WA0ITP
 

A while back someone  posted, on some list, a link to a calculator that provided abt 15 or so parallel resistor combination which matched a desired value that was entered into the calculator.  Matching parallel values were tabulated as were error deviations in percent. Alas I lost the email with the link.

Google is not my friend on this.  Did anyone here see and save that email/link?  Thanks for checking, appreciate it.
-- 
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com


Re: Freq. mite and MFJ-9040

Paul Smith
 

Kelly,

I have the 9020,30 and 40 and had never thought of putting the Freq-Mite in them. Cool idea! All of mine have pencil marks for the appx spots for watering holes. MFJ has the manuals for a free download. I was reading and see the VFO is 4.85 to 5 Mhz I could not dope out where to sample the frequency tho... maybe someone else will chime in good luck de Paul N0NBD


Sent from Outlook




From: main@4SQRP.groups.io <main@4SQRP.groups.io> on behalf of Kelly <n3hsy@...>
Sent: Wednesday, June 20, 2018 3:21 PM
To: 4SQRP@groups.io
Subject: [4SQRP] Freq. mite and MFJ-9040
 
Looking for answers. ... freqMite is installed and working... but don’t know where to sample RF on the board and what is correct offset pin jumper settings. Now all jumpers on as per manual I hear only 0000. Any one have this rig / combo?? Any help greatly appreciated, thanks es 72/73

AE5II
Kelly




Freq. mite and MFJ-9040

Kelly <n3hsy@...>
 

Looking for answers. ... freqMite is installed and working... but don’t know where to sample RF on the board and what is correct offset pin jumper settings. Now all jumpers on as per manual I hear only 0000. Any one have this rig / combo?? Any help greatly appreciated, thanks es 72/73

AE5II
Kelly


Wednesday Evening 40 and 80 meter Nets - Wed, 6/20/18 8:00pm-9:00pm #cal-reminder

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

Reminder:
Wednesday Evening 40 and 80 meter Nets

When:
Wednesday, 20 June 2018
8:00pm to 9:00pm
(GMT-05:00) America/Chicago

Where:
40 and 80 Meters

Description:
The 40 Meter Net will be at 8:00 pm central or 0100 UTC on 7.122 +-.
NCS will be Bill KV6Z.

Wednesday evening 80 Meter CW Net. will be at 0130 UTC Thursday (8:30PM Central Time Wednesday). 
The net will be called on 3.564 MHz +/- QRM.



Net control operators are Johnny AC0BQ or Paul N0NBD.

View Event.


Re: BJ for sale on Ebay

Ed Redwine
 

Yes...got got a call from Larry. Someone bought it at three "buy it now" price. Thanks to all who looked.


On Tue, Jun 19, 2018 at 7:28 PM, Frank King
<aa7xa@...> wrote:

Looks like it has been sold already.

AA7XA

 

From: main@4SQRP.groups.io [mailto:main@4SQRP.groups.io] On Behalf Of Ed Redwine via Groups.Io
Sent: Tuesday, June 19, 2018 5:13 PM
To: main@4SQRP.groups.io
Subject: [4SQRP] BJ for sale on Ebay

 

Since I don't do Ebay, I asked my good friend Larry, AB0AH, to list it on my behalf. My health is failing plus my apartment
complex forbids  any antennas. The BJ tests at 5 watts with a 13v supply.
   Please check it out...
QRP WWII Spy Radio Replica.


Re: BJ for sale on Ebay

Frank King
 

Looks like it has been sold already.

AA7XA

 

From: main@4SQRP.groups.io [mailto:main@4SQRP.groups.io] On Behalf Of Ed Redwine via Groups.Io
Sent: Tuesday, June 19, 2018 5:13 PM
To: main@4SQRP.groups.io
Subject: [4SQRP] BJ for sale on Ebay

 

Since I don't do Ebay, I asked my good friend Larry, AB0AH, to list it on my behalf. My health is failing plus my apartment
complex forbids  any antennas. The BJ tests at 5 watts with a 13v supply.
   Please check it out...
QRP WWII Spy Radio Replica.

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