Re: How do I power the 49er ?
My apologies to the group. It appears this thread has be hijacked to continue the discussion about the hiss issue I'm having with my 49-er. I have some additional information but I'll put it out on the thread I started regarding the issue - ?"40m QRP Transceiver Success." Many thanks... and apologies again.
Aaron - N2HTL
On Sat, Apr 9, 2016 at 10:47 PM, Aaron Heverin <aaronhev@...> wrote: Thanks, Dave. Well... that's exactly what I'm using - a 12 volt gel cell. Heavy bugger but it's working great. The radio itself is working perfectly. The rotary encoder is tuning as it should. 40m is loaded with signals tonight. In fact, I'm making some contacts during the SKCC Weekend Sprint with the radio right now. I'm just trying to get to the bottom of the the excessive hiss coming from the audio output. Unfortunately, I don't have another LM386 chip on hand to see if perhaps the chip is weak in some way.? Aaron - N2HTL
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Re: How do I power the 49er ?
Thanks, Dave. Well... that's exactly what I'm using - a 12 volt gel cell. Heavy bugger but it's working great. The radio itself is working perfectly. The rotary encoder is tuning as it should. 40m is loaded with signals tonight. In fact, I'm making some contacts during the SKCC Weekend Sprint with the radio right now. I'm just trying to get to the bottom of the the excessive hiss coming from the audio output. Unfortunately, I don't have another LM386 chip on hand to see if perhaps the chip is weak in some way.? Aaron - N2HTL
?
Aaron,? I am using a 12 volt gel cell battery to power my 49er and I'm using Yamaha CM-500 headphones.? I don't know if the earbuds would make a difference or not, but as Jack just said, wall warts are generally junk and plagued with noise and are not acceptable for use on the 49er.
Also, regarding the rotary encoder, I originally tried to use one of the encoders with the resistors on the circuit board.? It was one that came with one of the Arduino starter kits.? It did not work.? I don't know if it was a bad encoder (suspect it was), or if it was incompatible in some way.? I had some that were stand alones (not on a PCB) without the resistors that I had purchased from Adafruit, they worked fine.
Dave, W0DF
?
I have a Jetstream 30A power supply with adjustable output voltage. I run it at 13.8V for my 100W rig, but 12V for my Forty-9er. Wall warts can be very noisy and so can some cheap 12V supplies. If you have a scope, look at the output.
Jack, W8TEE
?
What are you using to power the 49er with, battery, wall wart, 12 volt supply???
?
Hi Dave. Just disconnected the antenna and there's a lot of hiss on the output. Of course, the band is flooded with signals tonight due to the SKCC Weekend Sprint going on so it's much busier than it was last night. But regardless, with just a pair of earbuds on, it's very hissy. On very weak signals, the hiss makes it very hard to copy any weak signals.
Aaron - N2HTL On Sat, Apr 9, 2016 at 10:02 PM, dfine100@... [SoftwareControlledHamRadio] <SoftwareControlledHamRadio@...> wrote:
?
Aaron,
What does the audio sound like with the antenna disconnected?? Are you hearing 40 meter band noise, or are you hearing audio hiss from within the 49er circuitry. I have one working and it does not have hiss when the antenna is disconnected.? Also, what are using for the 12 volt power supply?
Dave, W0DF
?
Hello Norbert. I'm glad you found the solution. Was just about to respond when I read your latest post. Glad you got it resolved.?
I was wondering if you could do me a small favor. Once you power up the 49-er and get a chance to test it out, would you please report your findings on the quality of the signals coming from the audio output of the 49-er? I'm chasing down an issue with what seems to be excessive hiss - not band noise - coming from mine and since I've never assembled a 49-er before, I'm not sure how it's supposed to sound. Having another example to compare mine to would be a great help in determining if anything isn't right here.
Many thanks... and best 73s.
Aaron - N2HTL
On Sat, Apr 9, 2016 at 9:28 PM, wp3dx@... [SoftwareControlledHamRadio] <SoftwareControlledHamRadio@...> wrote:
?
Got it, in finding some minor differences between the instructions in the QST and Farruk's link. I re-read the whole thing and page 22 on the QST instructions clearly states;
"12V power for the Forty-9er is taken from pins 1 and 3 of the J1 header on the Nano/VFO board."
Regards Norbert
-- Aaron
-- Aaron
|
Re: How do I power the 49er ?
Aaron,? I am using a 12 volt gel cell battery to power my 49er and I'm using Yamaha CM-500 headphones.? I don't know if the earbuds would make a difference or not, but as Jack just said, wall warts are generally junk and plagued with noise and are not acceptable for use on the 49er.
Also, regarding the rotary encoder, I originally tried to use one of the encoders with the resistors on the circuit board.? It was one that came with one of the Arduino starter kits.? It did not work.? I don't know if it was a bad encoder (suspect it was), or if it was incompatible in some way.? I had some that were stand alones (not on a PCB) without the resistors that I had purchased from Adafruit, they worked fine.
Dave, W0DF
On Saturday, April 9, 2016 9:32 PM, "Jack Purdum jjpurdum@... [SoftwareControlledHamRadio]" wrote:
?
I have a Jetstream 30A power supply with adjustable output voltage. I run it at 13.8V for my 100W rig, but 12V for my Forty-9er. Wall warts can be very noisy and so can some cheap 12V supplies. If you have a scope, look at the output.
Jack, W8TEE
From: "dfine100@... [SoftwareControlledHamRadio]"
To: "SoftwareControlledHamRadio@..."
Sent: Saturday, April 9, 2016 10:19 PM
Subject: Re: [SoftwareControlledHamRadio] Re: How do I power the 49er ?
?
What are you using to power the 49er with, battery, wall wart, 12 volt supply???
On Saturday, April 9, 2016 9:15 PM, "Aaron Heverin aaronhev@... [SoftwareControlledHamRadio]" wrote:
?
Hi Dave. Just disconnected the antenna and there's a lot of hiss on the output. Of course, the band is flooded with signals tonight due to the SKCC Weekend Sprint going on so it's much busier than it was last night. But regardless, with just a pair of earbuds on, it's very hissy. On very weak signals, the hiss makes it very hard to copy any weak signals.
Aaron - N2HTL
|
Re: How do I power the 49er ?
Sorry... forgot to answer that question. I'm using a 12v, 8aH battery. It's the same one I use when I take my other rigs portable. Aaron - N2HTL
?
I have a Jetstream 30A power supply with adjustable output voltage. I run it at 13.8V for my 100W rig, but 12V for my Forty-9er. Wall warts can be very noisy and so can some cheap 12V supplies. If you have a scope, look at the output.
Jack, W8TEE
?
What are you using to power the 49er with, battery, wall wart, 12 volt supply???
?
Hi Dave. Just disconnected the antenna and there's a lot of hiss on the output. Of course, the band is flooded with signals tonight due to the SKCC Weekend Sprint going on so it's much busier than it was last night. But regardless, with just a pair of earbuds on, it's very hissy. On very weak signals, the hiss makes it very hard to copy any weak signals.
Aaron - N2HTL On Sat, Apr 9, 2016 at 10:02 PM, dfine100@... [SoftwareControlledHamRadio] <SoftwareControlledHamRadio@...> wrote:
?
Aaron,
What does the audio sound like with the antenna disconnected?? Are you hearing 40 meter band noise, or are you hearing audio hiss from within the 49er circuitry. I have one working and it does not have hiss when the antenna is disconnected.? Also, what are using for the 12 volt power supply?
Dave, W0DF
?
Hello Norbert. I'm glad you found the solution. Was just about to respond when I read your latest post. Glad you got it resolved.?
I was wondering if you could do me a small favor. Once you power up the 49-er and get a chance to test it out, would you please report your findings on the quality of the signals coming from the audio output of the 49-er? I'm chasing down an issue with what seems to be excessive hiss - not band noise - coming from mine and since I've never assembled a 49-er before, I'm not sure how it's supposed to sound. Having another example to compare mine to would be a great help in determining if anything isn't right here.
Many thanks... and best 73s.
Aaron - N2HTL
On Sat, Apr 9, 2016 at 9:28 PM, wp3dx@... [SoftwareControlledHamRadio] <SoftwareControlledHamRadio@...> wrote:
?
Got it, in finding some minor differences between the instructions in the QST and Farruk's link. I re-read the whole thing and page 22 on the QST instructions clearly states;
"12V power for the Forty-9er is taken from pins 1 and 3 of the J1 header on the Nano/VFO board."
Regards Norbert
-- Aaron
-- Aaron
|
Re: Lead Free Soldering - Some lessons here may transfer over to building your circuits.
I'll second Jack's recommendation on the Radio Shack solder.? That is all I use on circuit boards.? It is great stuff.? If I ever run out, I may have to quit the hobby.
Dave. W0DF
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Re: How do I power the 49er ?
I have a Jetstream 30A power supply with adjustable output voltage. I run it at 13.8V for my 100W rig, but 12V for my Forty-9er. Wall warts can be very noisy and so can some cheap 12V supplies. If you have a scope, look at the output.
Jack, W8TEE
From: "dfine100@... [SoftwareControlledHamRadio]"
To: "SoftwareControlledHamRadio@..."
Sent: Saturday, April 9, 2016 10:19 PM
Subject: Re: [SoftwareControlledHamRadio] Re: How do I power the 49er ?
?
What are you using to power the 49er with, battery, wall wart, 12 volt supply???
On Saturday, April 9, 2016 9:15 PM, "Aaron Heverin aaronhev@... [SoftwareControlledHamRadio]" wrote:
?
Hi Dave. Just disconnected the antenna and there's a lot of hiss on the output. Of course, the band is flooded with signals tonight due to the SKCC Weekend Sprint going on so it's much busier than it was last night. But regardless, with just a pair of earbuds on, it's very hissy. On very weak signals, the hiss makes it very hard to copy any weak signals.
Aaron - N2HTL
|
Re: Lead Free Soldering - Some lessons here may transfer over to building your circuits.
I never use lead-free solder. I prefer 62/36/2 in a .022" diameter (2% silver). It melts like a dream at low temps. Radio Shack carried it, but it's getting tough to find. I found 7 spools on eBay and bought all 7. If you still have a RS in business, see if they still have some. It so, buy it...and I'll buy it from you if you don't want it.
Jack, W8TEE
From: "white512@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Saturday, April 9, 2016 4:02 PM
Subject: [SoftwareControlledHamRadio] Lead Free Soldering - Some lessons here may transfer over to building your circuits.
?
I rarely use lead free solder - my fav is 63/37 or 60/40. However recently the PCB in my A/C and Heat Pump started twinking out.?
After troubleshooting the obvious (connectors, sensors, relays) I surmised a cold solder joint. Careful inspection under a 30X jewelers loupe didn't reveal any obvious breaks or bad solder joints. But since I had taken it out I decided to re-solder every connection on the PCB. ?
I wasn't able to get good wetting with my workhorse soldering pencil. Instead, I noted that it only came up to about 275 degrees C when measured using a K type thermocouple - I have a new tip on order as it appears it has degraded over the years. Certainly still good for basic 60/40 solder but not satisfactory due to the heat I needed to transfer to many of the more substantial component connectors on the PCB and the obvious lead free solder. Even my more rugged Weller soldering gun struggled a tad.
So, if you suspect lead free solder, be prepared to crank up the temp to 325 C. or more. Am also now looking into a more versatile temperature controlled soldering pencil. ?I am posting this as I'm seeing more and more commercial PCBs with lead free solder.
Oh, the AC/Heat Pump works fine now.
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Re: How do I connect the rotary encoder ?
First, download Farrukh's document:
and look at the encoder on the schematic:
'D' on the schematic is the data line, or DT. Now follow it to J1. What pin is it connected to? 'G' on the schematic is the GND line, or GND. Now follow it to J1. What pin is it connected to? 'C' on the schematic is the clock line, or CLK. Now follow it to J1. What pin is it connected to? 'S1' on the schematic has one side connected to ground, but the side (SW) is connected to J1. What pin is it connected to? '+' ?connects to 5V, so it could be pin 7, 8, 9, or 10 on J1.
If you make the connections from the encoder to J1 as the schematic tells you, what happens?
Jack, W8TEE
From: "wp3dx@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Saturday, April 9, 2016 6:15 PM
Subject: [SoftwareControlledHamRadio] How do I connect the rotary encoder ?
?
Hi!
My rotary encoder has 5 pins as follow;?
CLK DT SW ?+? GND
How do I connect that to the VFO board ? pins 17 thru 24 (yellow headers )
Thanks in advance.
Norbert
|
Re: How do I power the 49er ?
What are you using to power the 49er with, battery, wall wart, 12 volt supply???
On Saturday, April 9, 2016 9:15 PM, "Aaron Heverin aaronhev@... [SoftwareControlledHamRadio]" <SoftwareControlledHamRadio@...> wrote:
?
Hi Dave. Just disconnected the antenna and there's a lot of hiss on the output. Of course, the band is flooded with signals tonight due to the SKCC Weekend Sprint going on so it's much busier than it was last night. But regardless, with just a pair of earbuds on, it's very hissy. On very weak signals, the hiss makes it very hard to copy any weak signals.
Aaron - N2HTL
?
Aaron,
What does the audio sound like with the antenna disconnected?? Are you hearing 40 meter band noise, or are you hearing audio hiss from within the 49er circuitry. I have one working and it does not have hiss when the antenna is disconnected.? Also, what are using for the 12 volt power supply?
Dave, W0DF
?
Hello Norbert. I'm glad you found the solution. Was just about to respond when I read your latest post. Glad you got it resolved.?
I was wondering if you could do me a small favor. Once you power up the 49-er and get a chance to test it out, would you please report your findings on the quality of the signals coming from the audio output of the 49-er? I'm chasing down an issue with what seems to be excessive hiss - not band noise - coming from mine and since I've never assembled a 49-er before, I'm not sure how it's supposed to sound. Having another example to compare mine to would be a great help in determining if anything isn't right here.
Many thanks... and best 73s.
Aaron - N2HTL
On Sat, Apr 9, 2016 at 9:28 PM, wp3dx@... [SoftwareControlledHamRadio] <SoftwareControlledHamRadio@...> wrote:
?
Got it, in finding some minor differences between the instructions in the QST and Farruk's link. I re-read the whole thing and page 22 on the QST instructions clearly states;
"12V power for the Forty-9er is taken from pins 1 and 3 of the J1 header on the Nano/VFO board."
Regards Norbert
-- Aaron
|
Re: How do I power the 49er ?
Hi Dave. Just disconnected the antenna and there's a lot of hiss on the output. Of course, the band is flooded with signals tonight due to the SKCC Weekend Sprint going on so it's much busier than it was last night. But regardless, with just a pair of earbuds on, it's very hissy. On very weak signals, the hiss makes it very hard to copy any weak signals.
Aaron - N2HTL
?
Aaron,
What does the audio sound like with the antenna disconnected?? Are you hearing 40 meter band noise, or are you hearing audio hiss from within the 49er circuitry. I have one working and it does not have hiss when the antenna is disconnected.? Also, what are using for the 12 volt power supply?
Dave, W0DF
?
Hello Norbert. I'm glad you found the solution. Was just about to respond when I read your latest post. Glad you got it resolved.?
I was wondering if you could do me a small favor. Once you power up the 49-er and get a chance to test it out, would you please report your findings on the quality of the signals coming from the audio output of the 49-er? I'm chasing down an issue with what seems to be excessive hiss - not band noise - coming from mine and since I've never assembled a 49-er before, I'm not sure how it's supposed to sound. Having another example to compare mine to would be a great help in determining if anything isn't right here.
Many thanks... and best 73s.
Aaron - N2HTL
On Sat, Apr 9, 2016 at 9:28 PM, wp3dx@... [SoftwareControlledHamRadio] <SoftwareControlledHamRadio@...> wrote:
?
Got it, in finding some minor differences between the instructions in the QST and Farruk's link. I re-read the whole thing and page 22 on the QST instructions clearly states;
"12V power for the Forty-9er is taken from pins 1 and 3 of the J1 header on the Nano/VFO board."
Regards Norbert
-- Aaron
|
Re: How do I power the 49er ?
I connect the 12V to J1; + to pins 1 or 2 and - to pins 3 or 4.
Jack, W8TEE
From: "wp3dx@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Saturday, April 9, 2016 6:31 PM
Subject: [SoftwareControlledHamRadio] How do I power the 49er ?
?
Hi!
Quick question,?I see pins 2 and 4 in the diagram to power the VFO board and I already tried it when calibrating the mini360 ?5V output.?
My question is how do I power the 49er ? Does it feed from the VFO board ??
Thanks in advance.
Norbert
|
Re: How do I power the 49er ?
Aaron,
What does the audio sound like with the antenna disconnected?? Are you hearing 40 meter band noise, or are you hearing audio hiss from within the 49er circuitry. I have one working and it does not have hiss when the antenna is disconnected.? Also, what are using for the 12 volt power supply?
Dave, W0DF
On Saturday, April 9, 2016 8:51 PM, "Aaron Heverin aaronhev@... [SoftwareControlledHamRadio]" wrote:
?
Hello Norbert. I'm glad you found the solution. Was just about to respond when I read your latest post. Glad you got it resolved.?
I was wondering if you could do me a small favor. Once you power up the 49-er and get a chance to test it out, would you please report your findings on the quality of the signals coming from the audio output of the 49-er? I'm chasing down an issue with what seems to be excessive hiss - not band noise - coming from mine and since I've never assembled a 49-er before, I'm not sure how it's supposed to sound. Having another example to compare mine to would be a great help in determining if anything isn't right here.
Many thanks... and best 73s.
Aaron - N2HTL
?
Got it, in finding some minor differences between the instructions in the QST and Farruk's link. I re-read the whole thing and page 22 on the QST instructions clearly states;
"12V power for the Forty-9er is taken from pins 1 and 3 of the J1 header on the Nano/VFO board."
Regards Norbert
|
Re: How do I power the 49er ?
Hello Norbert. I'm glad you found the solution. Was just about to respond when I read your latest post. Glad you got it resolved.?
I was wondering if you could do me a small favor. Once you power up the 49-er and get a chance to test it out, would you please report your findings on the quality of the signals coming from the audio output of the 49-er? I'm chasing down an issue with what seems to be excessive hiss - not band noise - coming from mine and since I've never assembled a 49-er before, I'm not sure how it's supposed to sound. Having another example to compare mine to would be a great help in determining if anything isn't right here.
Many thanks... and best 73s.
Aaron - N2HTL
?
Got it, in finding some minor differences between the instructions in the QST and Farruk's link. I re-read the whole thing and page 22 on the QST instructions clearly states;
"12V power for the Forty-9er is taken from pins 1 and 3 of the J1 header on the Nano/VFO board."
Regards Norbert
|
Re: How do I power the 49er ?
Got it, in finding some minor differences between the instructions in the QST and Farruk's link. I re-read the whole thing and page 22 on the QST instructions clearly states;
"12V power for the Forty-9er is taken from pins 1 and 3 of the J1 header on the Nano/VFO board."
Regards Norbert
|
Re: How do I connect the rotary encoder ?
Never mind, I found the answer to my question while reading another post. For some reason I wasn't clear after reading the QST instructions, figure A11.?
Switch:? Pin 17 Clock: Pin 22 (D3) Data: Pin 18 (D2) GND: grounf +: 5vdc
Regards Norbert
|
Re: Increment Problems [1 Attachment]
Thanks Jack. I just got back from out of town and will do it soon ? Dennis ?
To: SoftwareControlledHamRadio@... From: SoftwareControlledHamRadio@... Date: Thu, 7 Apr 2016 20:11:35 +0000 Subject: Re: [SoftwareControlledHamRadio] Re: Increment Problems [1 Attachment]
?
[Attachment(s) from Jack Purdum included below]
Dennis:
It appears that there has been a change in the library. Try the attached version and see if it works for you with the I2C library. I can't do it right now as I loaned by Forty-9er to a friend.
Jack, W8TEE
|
How do I power the 49er ?
Hi!
Quick question,?I see pins 2 and 4 in the diagram to power the VFO board and I already tried it when calibrating the mini360 ?5V output.?
My question is how do I power the 49er ? Does it feed from the VFO board ??
Thanks in advance.
Norbert
|
How do I connect the rotary encoder ?
Hi!
My rotary encoder has 5 pins as follow;?
CLK DT SW ?+? GND
How do I connect that to the VFO board ? pins 17 thru 24 (yellow headers )
Thanks in advance.
Norbert
|
Lead Free Soldering - Some lessons here may transfer over to building your circuits.
I rarely use lead free solder - my fav is 63/37 or 60/40. However recently the PCB in my A/C and Heat Pump started twinking out.?
After troubleshooting the obvious (connectors, sensors, relays) I surmised a cold solder joint. Careful inspection under a 30X jewelers loupe didn't reveal any obvious breaks or bad solder joints. But since I had taken it out I decided to re-solder every connection on the PCB. ?
I wasn't able to get good wetting with my workhorse soldering pencil. Instead, I noted that it only came up to about 275 degrees C when measured using a K type thermocouple - I have a new tip on order as it appears it has degraded over the years. Certainly still good for basic 60/40 solder but not satisfactory due to the heat I needed to transfer to many of the more substantial component connectors on the PCB and the obvious lead free solder. Even my more rugged Weller soldering gun struggled a tad.
So, if you suspect lead free solder, be prepared to crank up the temp to 325 C. or more. Am also now looking into a more versatile temperature controlled soldering pencil. ?I am posting this as I'm seeing more and more commercial PCBs with lead free solder.
Oh, the AC/Heat Pump works fine now.
|
Re: Purpose of this Group
Yes, I'm already signed up ?and will stay at the hotel, even though I only live a little over an hour away. I'm also one of Rex's volunteers at his build.
From: "dfine100@... [SoftwareControlledHamRadio]"
To: "SoftwareControlledHamRadio@..."
Sent: Saturday, April 9, 2016 11:17 AM
Subject: Re: [SoftwareControlledHamRadio] Re: Purpose of this Group
?
OK, I'll check it out.? Thanks for the tip.
I was at FDIM last year and sat and talked with Glen for a while, he's quite a character.? Perhaps our paths crossed there. I really enjoyed the show last year but I haven't decided whether I am going back this year yet.? Would like to but this is a busy time of the year for me.?? I retired from Boeing about three years ago but I have a Boat and RV Storage Lot of 160 spaces that keeps me busy during the good weather seasons, and supports my hobbies.? Might still try to get away though, and if so, I'll try to look you up if you are going to be there.
Dave, W0DF
On Saturday, April 9, 2016 9:57 AM, "Jack Purdum jjpurdum@... [SoftwareControlledHamRadio]" wrote:
?
Hi Dave:
As I recall, I was doing all my phone patch work on 15M back then, but was part of a net. I enjoyed it and probably checked in at least twice a week. Every Christmas I would have more pies, cookies, cakes, and booze than I could ever consume myself. The wives really appreciated it.
I met Glen last year at the FDIM conference that takes place just before the Dayton hamfest. It's a QRP group and was a great time. We talked at length about various topics.?
You might want to take a look at the keyer in the Arduino Projects book. It's a little different, as I adapted it to run on a capacitive touch principle, which means you can use almost anything conductive for the paddles. I used two solder lugs, which makes it very portable and rugged. Also, the code is pretty simple.
Keep the group posted.
Jack, W8TEE
From: "dfine100@... [SoftwareControlledHamRadio]"
To: "SoftwareControlledHamRadio@..."
Sent: Saturday, April 9, 2016 10:49 AM
Subject: Re: [SoftwareControlledHamRadio] Re: Purpose of this Group
?
Jack,
The
Frog Sound kit that I used was identical to the 49er in your QST
article.? I had actually started building it for another DDS VFO project
that I had received preliminary info for from Glen Popiel.? I think he
is planning on including it in his next Arduino book, which he will
probably be devoting more time to now that his MESH network book is
complete and being advertised by the ARRL.? The preliminary software
that he had sent me for his version includes a keyer, which I would like
to incorporate into your 49er/Frog Sound software.? I'm not much of a
software writer, but might take a shot at mashing it together with yours
when I get the time.
I
have had the W0DF call since about 1976, was first licensed in 1962
with novice call sign WN0CWH, then WA0CWH before the W0DF.? I was on the
other end of the phone patches while serving in the US Navy, 1968
through 1971 as a Morse intercept operator, thus the love for CW.? I
appreciated all the phone patch operators that would hang out on the
Maritime Mobile Service Net on 14.313 Mhz.
I've bent your ear long enough.? Thanks for replying to my emails and for starting this group.
Dave, W0DF
On Friday, April 8, 2016 8:48 PM, "Jack Purdum jjpurdum@... [SoftwareControlledHamRadio]" <SoftwareControlledHamRadio@...> wrote:
?
Hi Dave:
I was not aware of the analyzers by the other, but will contact them to see if they will share ideas. No reason not to.
I'm happy to hear that you have your Frog Sound up and running. Was there anything different in the conversion? It appears they are pretty similar designs.
I did send your email on to them and they found out that it was a club in Sweden where it all started. They are in contact with the club, but haven't said anything further to me, other than they will keep me informed.
I did a double-take when I saw your call. I was a prof at Creighton University back in the '70s and my call was W0ODF...pretty close at first glance! I did tons of phone patch traffic between Guam and the Marshall Islands and the spouses at Offutt AFB, SAC headquarters...very rewarding endeavor.
73, Jack, W8TEE
From: "dfine100@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Friday, April 8, 2016 4:35 PM
Subject: [SoftwareControlledHamRadio] Re: Purpose of this Group
?
Hi Jack,
Regarding the antenna analyzer project, our local QRP club (SLQS- St. Louis QRP Society) currently has an antenna analyzer project underway using the AD9850 DDS, a NANO and a NOKIA 5110 display.? N0SA, Larry, is the brains behind this one and I just finished kitting up the parts this morning for distribution April club meeting, pending delivery of the PCBs. We are only building enough for club members and will not be offering kits.? Also, I'm sure you are aware of the Austin, TX group that is building and offering kits of an analyzer they call VIA, software being done by Milt, W8NUE.? I mention these only on the possibility that you may find some things in them to consider when designing your kit. I am interested in what your analyzer will do and will be following your posts in this group.? I do prefer the TFT display over the NOKIA.
I have the DDS VFO and 49-er (Frog Sound) project completed and operational.? Thanks to you and Farrukh for designing and offering the PCB and partial kit.? It was a lot of fun to build.? I'll post pictures soon.
Do you know if McGraw Hill was successful with getting the website shut down that I emailed you about?
73
Dave Fine, W0DF?
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jjpurdum