Transmit status LED for DDS/VFO 49'-er? Expand Messages
Can anybody tell me where I would make a tap on the 49'er keyer section so I could have a front panel indication of the transmit state? I'd like to use a small led. I found one at RS and it would need 12V, however I could find something lower power if needed.. I just need to get an idea where the +/- connections would be for this particular board.
Steve NS3L
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Re: In need of some vfo help
Thanks for the help on the display , that part is working now.. now to rack my brain on other problems.
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Faulty Mini 360 Buck voltage regulator in the nano-DDS kit
Well I finally got to building the nano-DDS kit, Nice, very nice. But I had difficulty with the mini360 regulator board. I could not get it to adjust below 8.7v, I had a few in my stock box so no biggie but I tested the replacement before I swapped out the one I had already fitted, yep, the new one adjusts down to 5v no worries so I went ahead and replaced the original. I tested the original outside of the nano kit and sure enough it would not go below 8.7v. I mention this to prospective builders and suggest that you test the module before you fit it. This is just a heads-up to save prospective builders some potential trouble and is absolutely not a criticism. Thanks again for a great project. Blessings
Wayne - NQ0RP
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Debco has a 10 pack of 5.1V 1W zener diodes for $1.25 and a 2 pack of 22uH chokes for $2. I buy a lot of stuff from them...husband and wife team, both hams, and great people.
Jack, W8TEE
From: "n9jcvphone@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Thursday, May 26, 2016 9:22 AM
Subject: [SoftwareControlledHamRadio] part swap anyone?
?
I would like to trade; 2 1W 36 Zerner Diodes 2 100uh inductors
for? 2 5.1 1W zener diodes 2 22uh inductors
I can send today. ?Send me an email to n 9 j c v @ mail.com
Thanks b
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Re: Looking to gather the parts
Well, my update is that I made it back from FDIM and have been checking out some new toys.
I ordered the remaining parts/modules for the DDS VFO and should have all that in a few weeks. In the meantime, I'll be finish getting the parts together for the MMR 40.
The plan is to get the NANO/DDS VFO running, build the MMR 40, then put them together. The integration will require changes to the code to have the DDS generate the ~3 MHz VFO signal and display the 7 MHz operating frequency.
Stay tuned for more updates.
Dave, N4ELM
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I would like to trade; 2 1W 36 Zerner Diodes 2 100uh inductors
for? 2 5.1 1W zener diodes 2 22uh inductors
I can send today. ?Send me an email to n 9 j c v @ mail.com
Thanks b
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Re: 49er transceiver build by W0MNA
While Farrukh is working on a modification to the Beta PCB, I'm continuing to work on the software. Something most AA's won't let you do is store a scan for use later. The attached photo shows a previously stored scan (yellow) overlayed with a current scan. (Perhaps you trimmed the antenna between the two scans.) This allows you to compare "before and after" adjustments. Since each scan can be save to a built-in SD card, you can compare to any previously-stored scan, not just back-to-back scans. You are limited to 9000 scans on the SD card...probably not a hardship. You can also download the saved scans via a USB cable into an application that can read a CSV file (e.g. Excel).
I think this is going to be a pretty useful piece of gear.
Jack, W8TEE
From: "Gary Auchard w0mna74@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@...
Sent: Wednesday, May 25, 2016 12:18 PM
Subject: Re: [SoftwareControlledHamRadio] 49er transceiver build by W0MNA
?
Jack,
What you were demonstrating to me on your new AA device really looked interesting and definitely worth building.? While you were showing me the device I was also thinking of how I could possibly package that into some box that would look good plus hold up to abuse at times in a backpack. In recent years I have been picking up blank pieces of circuit board material from Far Circuits while at the hamvention.? I picked up six really nice pieces this year just for the purpose of making cases for projects where there is no really good case designed to fit it. I've built cases like this in the past for several projects and they all came out really well since you can solder them together.? I use a small table saw from Harbor Freight that cuts these boards like they are made from butter.? Nice clean cuts and easy to paint when done.? I make the square/rectangular holes for displays using a scroll saw with a starter hole in each corner to start the cuts.? Then I finish off the hole with a fine file to make it really square up and look nice.? I'll be building your AA when the article is published so keep on working on it as this should appeal to a lot of hams just like the 40 meter transceiver article did.? The 40 meter transceiver I built sure did get a lot of attention on Friday evening and I've had a number of people email me since I returned home asking more questions.? You sure came up with a fun device when you dreamed up that item. Gary A.
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Gary:
Yes, the new AA will be completely portable, but will allow you to save scans to an SD card, which can then be sent to a PC via a USB connection. Since it's stored as a CSV file, it can be input directly into Excel. I'm working on one more feature that will allow you to overlay the previous scan with a new scan. That way, you can see directly what impact any change you made since the last run. I've also added coverage for the 60M band.
Each scan is comprised of 100 sample points spaced out over the frequency range you input. So if you do a scan from 7.0mHz to 7.1mHz, you have one point for every 1kHz. What is not obvious is that each one of those points is an average of 70 individual voltage tests. That will dampen the effect that small environmental changes (e.g., wind) can have on a single reading. If we can get the accuracy to 10%, it will be as good or better than units costing two to three times as much. I'm pretty excited about it.
Gotta run...still working on code tonight...
Jack
?
Interesting on the two calls.? Never thought to look them up.? I was lucky and ended up with a call ending in MNA when I started but have over the years modified it a bit with WN0, AB0, WB0 and now W0MNA.? Think I'll stop with this one.? Great CW call.
Just checked my supply of Arduino and I have a Mega board new still in the package.? I'm ready whenever you publish the article.? It really looked interesting and I can see this being used on a SOTA summit for checking the antenna when you put it up in a tree or however so you end up with the best SWR etc. you can get in that location.? I have another antenna analyzer I put together as a kit a few years ago but it requires a computer to see the results.? Yours looked like something I could really make use of in the field. Thanks again, Gary A. - W0MNA On Tue, May 24, 2016 at 3:14 PM, Jack Purdum jjpurdum@... [SoftwareControlledHamRadio] <SoftwareControlledHamRadio@...> wrote:
?
Gary:
You did a good job, as I said.
BTW, I wondered if anyone had the call W0MAN, and it turns out a lady has it, but a guy has W0MEN. Interesting!?
I'll keep you posted on the AA project. I have the Beta board working now.
Jack, W8TEE
?
Jack,
Thanks for the nice comments on the transceiver and for creating the design to start with.? Some pretty tough competition at this build session.? Really looking forward to building your next project you showed me at FDIM.? I can see a number of uses for that device.
Also, thanks for all the assistance you gave me early on in the building process with the sketch.? Really enjoyed talking to you at FDIM and hope to see you there again next year.
Gary A. - W0MNA
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Re: 49er transceiver build by W0MNA
Jack,
What you were demonstrating to me on your new AA device really looked interesting and definitely worth building.? While you were showing me the device I was also thinking of how I could possibly package that into some box that would look good plus hold up to abuse at times in a backpack. In recent years I have been picking up blank pieces of circuit board material from Far Circuits while at the hamvention.? I picked up six really nice pieces this year just for the purpose of making cases for projects where there is no really good case designed to fit it. I've built cases like this in the past for several projects and they all came out really well since you can solder them together.? I use a small table saw from Harbor Freight that cuts these boards like they are made from butter.? Nice clean cuts and easy to paint when done.? I make the square/rectangular holes for displays using a scroll saw with a starter hole in each corner to start the cuts.? Then I finish off the hole with a fine file to make it really square up and look nice.? I'll be building your AA when the article is published so keep on working on it as this should appeal to a lot of hams just like the 40 meter transceiver article did.? The 40 meter transceiver I built sure did get a lot of attention on Friday evening and I've had a number of people email me since I returned home asking more questions.? You sure came up with a fun device when you dreamed up that item. Gary A.
?
Gary:
Yes, the new AA will be completely portable, but will allow you to save scans to an SD card, which can then be sent to a PC via a USB connection. Since it's stored as a CSV file, it can be input directly into Excel. I'm working on one more feature that will allow you to overlay the previous scan with a new scan. That way, you can see directly what impact any change you made since the last run. I've also added coverage for the 60M band.
Each scan is comprised of 100 sample points spaced out over the frequency range you input. So if you do a scan from 7.0mHz to 7.1mHz, you have one point for every 1kHz. What is not obvious is that each one of those points is an average of 70 individual voltage tests. That will dampen the effect that small environmental changes (e.g., wind) can have on a single reading. If we can get the accuracy to 10%, it will be as good or better than units costing two to three times as much. I'm pretty excited about it.
Gotta run...still working on code tonight...
Jack
?
Interesting on the two calls.? Never thought to look them up.? I was lucky and ended up with a call ending in MNA when I started but have over the years modified it a bit with WN0, AB0, WB0 and now W0MNA.? Think I'll stop with this one.? Great CW call.
Just checked my supply of Arduino and I have a Mega board new still in the package.? I'm ready whenever you publish the article.? It really looked interesting and I can see this being used on a SOTA summit for checking the antenna when you put it up in a tree or however so you end up with the best SWR etc. you can get in that location.? I have another antenna analyzer I put together as a kit a few years ago but it requires a computer to see the results.? Yours looked like something I could really make use of in the field. Thanks again, Gary A. - W0MNA On Tue, May 24, 2016 at 3:14 PM, Jack Purdum jjpurdum@... [SoftwareControlledHamRadio] <SoftwareControlledHamRadio@...> wrote:
?
Gary:
You did a good job, as I said.
BTW, I wondered if anyone had the call W0MAN, and it turns out a lady has it, but a guy has W0MEN. Interesting!?
I'll keep you posted on the AA project. I have the Beta board working now.
Jack, W8TEE
?
Jack,
Thanks for the nice comments on the transceiver and for creating the design to start with.? Some pretty tough competition at this build session.? Really looking forward to building your next project you showed me at FDIM.? I can see a number of uses for that device.
Also, thanks for all the assistance you gave me early on in the building process with the sketch.? Really enjoyed talking to you at FDIM and hope to see you there again next year.
Gary A. - W0MNA
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Re: 49er transceiver build by W0MNA
Gary:
Yes, the new AA will be completely portable, but will allow you to save scans to an SD card, which can then be sent to a PC via a USB connection. Since it's stored as a CSV file, it can be input directly into Excel. I'm working on one more feature that will allow you to overlay the previous scan with a new scan. That way, you can see directly what impact any change you made since the last run. I've also added coverage for the 60M band.
Each scan is comprised of 100 sample points spaced out over the frequency range you input. So if you do a scan from 7.0mHz to 7.1mHz, you have one point for every 1kHz. What is not obvious is that each one of those points is an average of 70 individual voltage tests. That will dampen the effect that small environmental changes (e.g., wind) can have on a single reading. If we can get the accuracy to 10%, it will be as good or better than units costing two to three times as much. I'm pretty excited about it.
Gotta run...still working on code tonight...
Jack
From: "Gary Auchard w0mna74@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Tuesday, May 24, 2016 4:29 PM
Subject: Re: [SoftwareControlledHamRadio] 49er transceiver build by W0MNA
?
Interesting on the two calls.? Never thought to look them up.? I was lucky and ended up with a call ending in MNA when I started but have over the years modified it a bit with WN0, AB0, WB0 and now W0MNA.? Think I'll stop with this one.? Great CW call.
Just checked my supply of Arduino and I have a Mega board new still in the package.? I'm ready whenever you publish the article.? It really looked interesting and I can see this being used on a SOTA summit for checking the antenna when you put it up in a tree or however so you end up with the best SWR etc. you can get in that location.? I have another antenna analyzer I put together as a kit a few years ago but it requires a computer to see the results.? Yours looked like something I could really make use of in the field. Thanks again, Gary A. - W0MNA
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Re: In need of some vfo help
Peter, Besides making sure you are using the correct I2C library for the DDS/49-er radio, you need to make sure that you are calling the display in the code but its proper address. If you head over to this site:? - there's a TON of information about several I2C displays including how to install the latest I2C library. About 3/4 of the way down the page, there's a sketch for an "I2C Address Scanner." If you copy and paste this code into a new Arduino sketch, then run it according to the instructions, you'll find the address for YOUR display. I think the standard address for the 16 x 2 display is "0x27" but I wouldn't quote me on that. Not having the correct I2C address will cause all kinds of issues IF the display puts out any data at all - which is most often the case... nothing showing up. The best you might do is the backlight coming on. However, since you're getting small bits of data being displayed, I'm going with the incorrect I2C library being installed as being your problem. However, it never hurts to check for the correct I2C display just to rule that out as a potential issue.
Aaron - N2HTL
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The listing is no longer viewable. If you can, write the vendor and ask which libraries the display uses.
Jack, W8TEE
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here's a link to the display i bought on eBay.?
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Re: In need of some vfo help
The listing is no longer viewable. If you can, write the vendor and ask which libraries the display uses.
Jack, W8TEE
From: "wh6fao@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Tuesday, May 24, 2016 9:15 PM
Subject: Re: [SoftwareControlledHamRadio] In need of some vfo help
?
here's a link to the display i bought on eBay.?
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Re: In need of some vfo help
here's a link to the display i bought on eBay.?
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Re: 49er transceiver build by W0MNA
Interesting on the two calls.? Never thought to look them up.? I was lucky and ended up with a call ending in MNA when I started but have over the years modified it a bit with WN0, AB0, WB0 and now W0MNA.? Think I'll stop with this one.? Great CW call.
Just checked my supply of Arduino and I have a Mega board new still in the package.? I'm ready whenever you publish the article.? It really looked interesting and I can see this being used on a SOTA summit for checking the antenna when you put it up in a tree or however so you end up with the best SWR etc. you can get in that location.? I have another antenna analyzer I put together as a kit a few years ago but it requires a computer to see the results.? Yours looked like something I could really make use of in the field. Thanks again, Gary A. - W0MNA
?
Gary:
You did a good job, as I said.
BTW, I wondered if anyone had the call W0MAN, and it turns out a lady has it, but a guy has W0MEN. Interesting!?
I'll keep you posted on the AA project. I have the Beta board working now.
Jack, W8TEE
?
Jack,
Thanks for the nice comments on the transceiver and for creating the design to start with.? Some pretty tough competition at this build session.? Really looking forward to building your next project you showed me at FDIM.? I can see a number of uses for that device.
Also, thanks for all the assistance you gave me early on in the building process with the sketch.? Really enjoyed talking to you at FDIM and hope to see you there again next year.
Gary A. - W0MNA
|
Re: 49er transceiver build by W0MNA
Gary:
You did a good job, as I said.
BTW, I wondered if anyone had the call W0MAN, and it turns out a lady has it, but a guy has W0MEN. Interesting!?
I'll keep you posted on the AA project. I have the Beta board working now.
Jack, W8TEE
From: "w0mna74@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@...
Sent: Tuesday, May 24, 2016 3:33 PM
Subject: Re: [SoftwareControlledHamRadio] 49er transceiver build by W0MNA
?
Jack,
Thanks for the nice comments on the transceiver and for creating the design to start with.? Some pretty tough competition at this build session.? Really looking forward to building your next project you showed me at FDIM.? I can see a number of uses for that device.
Also, thanks for all the assistance you gave me early on in the building process with the sketch.? Really enjoyed talking to you at FDIM and hope to see you there again next year.
Gary A. - W0MNA
|
Re: 49er transceiver build by W0MNA
Jack,
Thanks for the nice comments on the transceiver and for creating the design to start with.? Some pretty tough competition at this build session.? Really looking forward to building your next project you showed me at FDIM.? I can see a number of uses for that device.
Also, thanks for all the assistance you gave me early on in the building process with the sketch.? Really enjoyed talking to you at FDIM and hope to see you there again next year.
Gary A. - W0MNA
|
Re: 49er transceiver build by W0MNA
Norbert,
I found the case at a hamfest for $3.00.? It had something else in it at one time but was empty when I bought it.? I was able to use the former front panel as the back panel since it has an LED and ON/OFF switch already in it.? I made a new front panel from some blank circuit board material I bought from FAR Circuits at the Dayton Hamvention last year.? I just cut my own holes in the new front piece to put the parts where I needed them to be.
Gary A. - W0MNA
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Re: 49er transceiver build by W0MNA
Very nice looking package.? Congrats.
Dave, W0DF
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Re: 49er transceiver build by W0MNA
I saw Gary's Forty-9er at the Four Days In May (FDIM) conference in Fairborn, OH (suburb of Dayton) that takes place just before the Dayton hamfest. The rig looks even better than the photos. I know it generated a lot of interest at the FDIM Builders Night that showcases individual QRP projects. I kinda thought Gary's Forty-9er would take the grand prize, it was that nice.
BTW, if you're interested in QRP, the FDIM should be on your Bucket List. I've attended the last two years and have enjoyed it very much. They also have a build-a-thon plus shuttle buses to the Hamfest on Friday and Saturday. I also enjoy the group's magazine, QRP Quarterly, too.
Jack, W8TEE
From: "w0mna74@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Tuesday, May 24, 2016 10:43 AM
Subject: [SoftwareControlledHamRadio] 49er transceiver build by W0MNA
?
I¡¯ve uploaded to the pictures section two pictures of the 40
Meter CW transceiver I built using the info from the March 2016 QST Magazine
article.? After completing the build as
described in the article, I added two more features I felt would enhance the operation
of this nice little QRP rig.
I added a programmable CW keyer and CW filter.? The keyer is the version 2 that was designed
by Craig Johnson ¨C AA0ZZ and the CW filter is the Hi-Per-Mite kit from 4SQRP
kits.? The version 2 keyer is now a
retired kit from the 4SQRP group but they do still have a few circuit boards
and IC¡¯s available.? They are now
advertising the version 3 kit and it will work very well in this transceiver
also.
Looking at the inside view of the transceiver you will see the
VFO section consisting of the AD9850 DDS and Arduino Nano in the upper
left.? To the right of that board is the
49er kit build exactly as laid out by the guide from the Farrukh Zia
website.? In the lower left is the keyer
board with three buttons to program buffers.?
In the lower right is the CW filter which can be switched in or
out.? It¡¯s nice to be able to switch the
filter out when you tune up into the SSB portions of the band.? The small board on the far lower right is a
voltage regulating board I built to provide the 9vdc and 5vdc required for the
keyer and CW filter.
The transceiver works very well and does a surprisingly good
job on receive when the band is open, but unfortunately band conditions have
been poor lately.? The transmitter will
put out 3.4 watts using a 12vdc battery.
This was a fun project and thanks to Jack Purdum ¨C W8TEE,
Farrukh Zia ¨C K2ZIA and Dennis Kidder ¨C W6DQ for coming up with the
design.? One other note, use only the
files from the Farrukh Zia website when building this project.? They are up-to-date and complete.? I found the ARRL website files not to be the
latest and most accurate.
Gary A. ¨C W0MNA
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Re: 49er transceiver build by W0MNA
Hi!
Excellent build, looks very Pro. Where did you get the case ? I see that it has a volume knob and the filter capability sounds like a pretty cool feature.
Thanks for sharing the pics.
73s
Norbert
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49er transceiver build by W0MNA
I¡¯ve uploaded to the pictures section two pictures of the 40
Meter CW transceiver I built using the info from the March 2016 QST Magazine
article.? After completing the build as
described in the article, I added two more features I felt would enhance the operation
of this nice little QRP rig.
I added a programmable CW keyer and CW filter.? The keyer is the version 2 that was designed
by Craig Johnson ¨C AA0ZZ and the CW filter is the Hi-Per-Mite kit from 4SQRP
kits.? The version 2 keyer is now a
retired kit from the 4SQRP group but they do still have a few circuit boards
and IC¡¯s available.? They are now
advertising the version 3 kit and it will work very well in this transceiver
also.
Looking at the inside view of the transceiver you will see the
VFO section consisting of the AD9850 DDS and Arduino Nano in the upper
left.? To the right of that board is the
49er kit build exactly as laid out by the guide from the Farrukh Zia
website.? In the lower left is the keyer
board with three buttons to program buffers.?
In the lower right is the CW filter which can be switched in or
out.? It¡¯s nice to be able to switch the
filter out when you tune up into the SSB portions of the band.? The small board on the far lower right is a
voltage regulating board I built to provide the 9vdc and 5vdc required for the
keyer and CW filter.
The transceiver works very well and does a surprisingly good
job on receive when the band is open, but unfortunately band conditions have
been poor lately.? The transmitter will
put out 3.4 watts using a 12vdc battery.
This was a fun project and thanks to Jack Purdum ¨C W8TEE,
Farrukh Zia ¨C K2ZIA and Dennis Kidder ¨C W6DQ for coming up with the
design.? One other note, use only the
files from the Farrukh Zia website when building this project.? They are up-to-date and complete.? I found the ARRL website files not to be the
latest and most accurate.
Gary A. ¨C W0MNA
|
jjpurdum