Date   

US supplied Vietnam Village VHF handheld QRP radios....

Jerry Brown
 

Gang, 

Recollections after a visit to the Fair Radio website today!

From my time living in El Paso, TX (Ft Bliss); I was active duty and training in internal medicine at the Army hospital there.

Hams friends there got their first solar powered repeater up and running....at 7,200 feet+,  on North Mt Franklin!
A Texas Air National Guard Chinook took the concrete enclosure for the repeater to the peak for them.

Check out the QST (cover) article on this repeater written by Roy Gould, N5RG,  that
was published in Jan 78 QST (you may have to be an ARRL member to get this article).....


The village VHF radios my roommate Steve Guerra WB5LCN  used for building the repeater RX/TX modules 
are now being sold at Fair Radio. The Hallicrafters plant in El Paso that made these radios closed in 1974.


73,
Jerry N4EO, ex-WA4GKO, ex-YI9EO, ex-HL9EO
Ret'd US Army



Re: QRP Banner

Johnny AC0BQ
 

Hello Robert
Try this one.
Johnny ACØBQ 

On Sat, Sep 26, 2020 at 11:46 AM griffithsesq.robert via groups.io <signalnaut=aol.com@groups.io> wrote:
Is there a direct email address for proposed Banner articles?

Griff NE3I



Robert Alan Griffiths











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


Re: Keying interface for PC

Johnny AC0BQ
 

Thanks Jim
I appreciate you digging into this.
I am trying to key my Kx3 for the upcoming NAQACC N3A event.

I was thinking that it required two port connections, but I couldn’t figure out how to do that?

The little interface would still be a great asset on a simpler QRP rig.

Thanks again
73
Johnny ACØBQ 

On Sat, Sep 26, 2020 at 11:48 AM n5ib_2 <n5ib@...> wrote:
Update:   it's amazing what you can learn just by "doing your homework"    :^))



Scott (N3FJP) has in fact already implemented an "almost as good" feature for sending CW over the CAT connection to the Elecraft rigs (and others that support a similar feature, like the Icom 7600 and 7610)



In the CW transmit settings, if the function key stored messages are prefixed with "RI:" then the characters that follow will be sent over the active CAT link as command(s) rather than used as text to key the transmitter over a separate keying link.



See the Elecraft KIO2 programmer's reference, page 9:

<https://ftp.elecraft.com/K2/Manuals%20Downloads/KIO2%20Pgmrs%20Ref%20rev%20E.pdf>



and N3FJP's CW transmit settings instructions (quoted below):

".....

With version 1.1, I have added the ability to play saved CW strings stored in your rig (for rigs equipped with this feature).  To send a command to your rig instead of sending the string, precede the text with RI:.  For example, when placed in an F key string, the following will trigger the Icom 7300 and Icom 7610 internally recorded voice messages: (you must have rig interface enabled and be connected by a com port)......"



For example, if the F4 key is loaded with "RI:SW16;SW08;" then pressing the F4 key will send the message stored in the K2's message memory #1.

  the SW16;  simulates a tap of the MSG button, and the SW08; simulates tapping the "1" button.



In like manner...

"RI:SW16;SW09;"  sends memory #2,  "RI:SW16;SW10;"  sends #3 and so on.



So in one swell foop [sic] I've almost obsoleted my wired USB keying interface     LOL    and designated the wireless BlueTooth CAT link as a the keying interface.



What is lost in the scheme is the ability to auto-insert callsigns, serial numbers, etc into a stored message. So Scott still owes us some midnight oil...       Break's Over, Scott!!       LOL



Jim, N5IB













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


Re: Keying interface for PC

Jim, N5IB
 

Update: it's amazing what you can learn just by "doing your homework" :^))

Scott (N3FJP) has in fact already implemented an "almost as good" feature for sending CW over the CAT connection to the Elecraft rigs (and others that support a similar feature, like the Icom 7600 and 7610)

In the CW transmit settings, if the function key stored messages are prefixed with "RI:" then the characters that follow will be sent over the active CAT link as command(s) rather than used as text to key the transmitter over a separate keying link.

See the Elecraft KIO2 programmer's reference, page 9:
<https://ftp.elecraft.com/K2/Manuals%20Downloads/KIO2%20Pgmrs%20Ref%20rev%20E.pdf>

and N3FJP's CW transmit settings instructions (quoted below):
".....
With version 1.1, I have added the ability to play saved CW strings stored in your rig (for rigs equipped with this feature). To send a command to your rig instead of sending the string, precede the text with RI:. For example, when placed in an F key string, the following will trigger the Icom 7300 and Icom 7610 internally recorded voice messages: (you must have rig interface enabled and be connected by a com port)......"

For example, if the F4 key is loaded with "RI:SW16;SW08;" then pressing the F4 key will send the message stored in the K2's message memory #1.
the SW16; simulates a tap of the MSG button, and the SW08; simulates tapping the "1" button.

In like manner...
"RI:SW16;SW09;" sends memory #2, "RI:SW16;SW10;" sends #3 and so on.

So in one swell foop [sic] I've almost obsoleted my wired USB keying interface LOL and designated the wireless BlueTooth CAT link as a the keying interface.

What is lost in the scheme is the ability to auto-insert callsigns, serial numbers, etc into a stored message. So Scott still owes us some midnight oil... Break's Over, Scott!! LOL

Jim, N5IB


QRP Banner

griffithsesq.robert
 

Is there a direct email address for proposed Banner articles?
Griff NE3I

Robert Alan Griffiths


Re: Keying interface for PC

Jim, N5IB
 

I should append a note about using the keying interface with rigs other than the K2...

The 4N25 optoisolator's output transistor is rated at 70 volts C-E breakdown and 50 mA continuous collector current. So the voltage won't be an issue with any solid state rig (tube rig ops beware!), but the current and saturation voltage might be, as Terry had noted.

The K2 draws less than a mA on key-down and has enough voltage margin to accommodate the C-E voltage of the opto plus the diodes used for the "straight-key-sensing" circuit.

Other rigs might sink considerably more current through the key, or require a "harder" ground condition. For instance, a Bayou Jumper passes the full Tx current, about 700 mA, through the key, so no way the little opto could handle that. To test, use your DMM as an ammeter across the rig's key line to measure the "short circuit current." If less than 30 mA or so then no worries.

Worst case - you might have to add a more robust keying transistor stage at the output to handle an beefier keying circuit, or if the opto doesn't pull the line close enough to ground.

I'll make a test with my IC-706 and TS-430S and report back, though I seem to recall using a similar opto isolator with the 706 a few years back with no issues.

I wish I could find a serial BlueTooth module that managed the modem control lines properly, but the ones I've tried, even those with a pinout for RTS, DTR, etc, didn't seem to control them.

I gently prodded N3FJP a couple years back to add program support for Elecraft rigs' ability to send CW via a command over the CAT link, but to date he hasn't had occasion to implement it. Perhaps a "re-prod" is in order :^))

If that feature were included, then my little wireless BlueTooth CAT adapter:
<https://qsl.net/n5ib/Elecraft%20K2%20Bluetooth%20Interface%20Overview.pdf>
would handle rig control and CW keying over the same link.

Jim, N5IB


Re: Keying interface for PC

Johnny AC0BQ
 

Gm Jim 
I have to agree with Wayne.
Great Job!
I have been trying to figure out how to key my radio with the N3FJP software.

Now I need to get busy and build one!!

Thanks
73
Johnny ACØBQ 

On Fri, Sep 25, 2020 at 10:49 AM n5ib_2 <n5ib@...> wrote:
A few days ago I was reading Terry's (WA0ITP) description of a keying interface he made in order to use N3FJP contest and general logging software to send CW . His interface connected to a PC's printer port.

<http://www.wa0itp.com/cwinterface.html>



With the demise of real serial ports and printer port on laptops, I decided to make an interface using a USB to serial adapter module that I had on hand. As long as it brought out the needed modem control lines (RTS in this case) it ought to work. I made a quick toner transfer PC board, and exercised my recently acquired 3D printer to make an enclosure.



Attached is a PDF document of the project. It works fine - and just in time to get ready for November Sweepstakes.

Additional support information can be found at  <https://qsl.net/n5ib/>



73,

Jim, N5IB















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


Re: Keying interface for PC

Wayne Dillon
 

Seriously nice job Jim, thanks muchly for sharing.
Wayne - NQ0RP

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

Fate whispered to courageous "You cannot withstand the storm"
Courageous  whispered back "I am the storm"


Virus-free. www.avast.com


Keying interface for PC

Jim, N5IB
 

A few days ago I was reading Terry's (WA0ITP) description of a keying interface he made in order to use N3FJP contest and general logging software to send CW . His interface connected to a PC's printer port.
<http://www.wa0itp.com/cwinterface.html>

With the demise of real serial ports and printer port on laptops, I decided to make an interface using a USB to serial adapter module that I had on hand. As long as it brought out the needed modem control lines (RTS in this case) it ought to work. I made a quick toner transfer PC board, and exercised my recently acquired 3D printer to make an enclosure.

Attached is a PDF document of the project. It works fine - and just in time to get ready for November Sweepstakes.
Additional support information can be found at <https://qsl.net/n5ib/>

73,
Jim, N5IB


Delta Mike Romeo Net

Robert
 

Thanks to those who checked in tonight

WG5F ED
AC0BQ JOHNNY
N0TGR DICK
N4ELM DAVE
WA9BNZ BILL

TONIGHT'S TOPIC BEACONS

73'S

bERT
N0YJ


40 and 80 meter net report

Johnny AC0BQ
 

Ge Group 
Well, I am still waiting on Cycle 25 to begin, but I'm not sure it has started yet? 

Check in's tonight were

40 Meters
KW4JS JOHN
WA9PWP PAUL 
N4ELM DAVE 
WI5H MIKE 

80 METER CHECK IN'S WERE: 

N4ELM DAVE DOUBLE 
WA9PWP PAUL DOUBLE 
WA0ITP TERRY 
N0YJ BERT 

Thanks all, have a great week, enjoy the fall WX! 
72 
Johnny AC0BQ


Wednesday Evening 40 and 80 meter Nets - Wed, 09/23/2020 #cal-notice

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

Wednesday Evening 40 and 80 meter Nets

When:
Wednesday, 23 September 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.


Wednesday Evening 40 and 80 meter Nets - Wed, 09/23/2020 20:00-21:00 #cal-reminder

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

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 23 September 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.


Wednesday Evening 40 and 80 meter Nets - Wed, 09/23/2020 20:00-21:00 #cal-reminder

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

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 23 September 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.


Wednesday Evening 40 and 80 meter Nets - Wed, 09/23/2020 20:00-21:00 #cal-reminder

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

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 23 September 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.


Question Related to My NS40 Transmitter

Bobby Drummond
 


Will the IRF510 in the NS40 transmitter by 4States handle 24 volts DC in the final of the transmitter safely?

If I add a 12 or 15 volt regulator in series with the 2N7000 oscillator transistor (to keep the voltage on it lower than the final's new voltage) and supply 24 volts to the IR510 circuit, will it handle the extra voltage?

I assume it might need a better heat sink if so.  I would also insert a DC switching circuit in series with the power to the transmitter so I would only be switching low voltage and low current DC voltage to effect the same thing as direct key switching.

What would be the approximate power output from the transmitter be in that case?


--
73 de AK4JA


Re: For Sale Ten-Tec 4020 CW transceiver

Bill VanKirk
 

The TenTec 4020 has been spoken for. Thanks to all that emailed about it.

73
Bill
W0PT


Re: For Sale Ten-Tec 4020 CW transceiver

Matt Jodz
 

Hi Bill,
    Sounds good. What is it shipped and do you take PayPal?
73 de Matt ND7MJ
Ps pics would be Great but not necessary.

On Sun, Sep 20, 2020 at 4:49 PM Bill VanKirk <bvkirk@...> wrote:
I have a Ten-Tec 4020 CW transceiver for sale in good condition. Makes 5 watts on both 40 and 20 meters. Works great and is a lot of fun to use when out and about. Has built in keyer, etc. Google for further details. I have a box full of QRP gear so this one needs a new home. Asking $85. Pictures available. Email me direct for details.

73
W0PT










For Sale Ten-Tec 4020 CW transceiver

Bill VanKirk
 

I have a Ten-Tec 4020 CW transceiver for sale in good condition. Makes 5 watts on both 40 and 20 meters. Works great and is a lot of fun to use when out and about. Has built in keyer, etc. Google for further details. I have a box full of QRP gear so this one needs a new home. Asking $85. Pictures available. Email me direct for details.

73
W0PT


2020 NJQRP Skeeter Hunt Soapbox has been published

Larry Makoski
 

 You can see all the comments of your fellow Skeeter Hunters!

You can go to the Official NJQRP Skeeter Hunt Webpage and scroll to the bottom for the links. Or ...

Soapbox Page 1 is here https://www.qsl.net/w2lj/index%20page%2016

Soapbox Page 2 is here https://www.qsl.net/w2lj/index%20page%2017

Soapbox Page 3 is here https://www.qsl.net/w2lj/index%20page%2018

Once again, thanks to all of you out there who participated and continue to participate from year to year. YOU make the NJQRP Skeeter Hunt the success that it is. Without you, it would be four hours of dead air.

Certificates will be mailed in October

72 de Larry W2LJ

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