I finished assembling my unit on the weekend and it seems to be working quite well. It picks up quite a few CW stations in the evening and I'm getting RF output of close to 2 Watts. I have to find a suitable case and play with some software tweaks.
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Congrads! The only way I can update your membership to use your call is to remove you from the membership list, which I have done. Reapply using your call this time.
Jack, W8TEE
From: "frye.dale@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Monday, June 20, 2016 7:19 PM
Subject: [SoftwareControlledHamRadio] Got my ticket!
?
A week ago last Sunday took the Technician test. Passed it. Then took the General even though I hadn't prepped for it. Passed it. Got my ticket today. Please add my call sign to the roster.
Dale Frye WM4UUB
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A week ago last Sunday took the Technician test. Passed it. Then took the General even though I hadn't prepped for it. Passed it. Got my ticket today. Please add my call sign to the roster.
Dale Frye WM4UUB
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I'll make the measurements tonite.
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I wouldn't unsolder them yet, until you're convinced they're bad. Check the voltage on the base and collectors of the transistors. I can't remember the voltages you should see on the collectors, but the collector of Q2 is connected to 12V via L1. Also, check to see what you're getting out of R1, too. As I said earlier, mine's not here now so I can't measure the voltages for you.
73, Jcak, W8TEE
From: "xeragi@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Monday, June 20, 2016 1:33 PM
Subject: [SoftwareControlledHamRadio] Re: Pilot error?
?
Ah - you are on to something. As best I can measure, I see no output from either transistor. ?Its hard to believe that both are faulty, but should I try to replace both of them? ?Last time I tried to unsolder from the board was not easy for me, but I can give it a try....
Just bought the components for the BCI filter.
Thanks
Ivan-WC2S ---In SoftwareControlledHamRadio@..., <jjpurdum@...> wrote : Check the buffer transistors. What are the voltages on their pins?
Jack, W8TEE
From: "xeragi@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Sunday, June 19, 2016 6:11 PM
Subject: [SoftwareControlledHamRadio] Re: Pilot error?
?Thanks for the suggestions. Since my original post, I reset the rotary encoder pin positions according to those I saw in W5GW's VFO checkout, and I think this question has been resolved.
I also aligned R8 to the correct voltage divider voltage (3.92v with my power supply) according to K5HDE's post, and hope that the AD9850 is happier.
However, I still do not see more than 2-3 millivolts output AC on my DVM at J3 as you recommended no matter where I put R1. ?I do not have a scope to verify the output frequency. J2 output is the same as J3, in the 2-3 mv range.
Thanks Ivan - WC2S
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Ah - you are on to something. As best I can measure, I see no output from either transistor. ?Its hard to believe that both are faulty, but should I try to replace both of them? ?Last time I tried to unsolder from the board was not easy for me, but I can give it a try....
Just bought the components for the BCI filter.
Thanks
Ivan-WC2S ---In SoftwareControlledHamRadio@..., <jjpurdum@...> wrote : Check the buffer transistors. What are the voltages on their pins?
Jack, W8TEE
From: "xeragi@... [SoftwareControlledHamRadio]" <SoftwareControlledHamRadio@...>
To: SoftwareControlledHamRadio@...
Sent: Sunday, June 19, 2016 6:11 PM
Subject: [SoftwareControlledHamRadio] Re: Pilot error?
?Thanks for the suggestions. Since my original post, I reset the rotary encoder pin positions according to those I saw in W5GW's VFO checkout, and I think this question has been resolved.
I also aligned R8 to the correct voltage divider voltage (3.92v with my power supply) according to K5HDE's post, and hope that the AD9850 is happier.
However, I still do not see more than 2-3 millivolts output AC on my DVM at J3 as you recommended no matter where I put R1. ?I do not have a scope to verify the output frequency. J2 output is the same as J3, in the 2-3 mv range.
Thanks Ivan - WC2S
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I just uoloaded the CH341SER zipped driver for windows 7 and the "non recognised" serial/usb port on the Arduino boards. Hope folks find this useful. Wayne - NQ0RP
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New file uploaded to SoftwareControlledHamRadio
Hello,
This email message is a notification to let you know that
a file has been uploaded to the Files area of the SoftwareControlledHamRadio
group.
File : /CH341SER.zip
Uploaded by : fleapowerus <wayne.dillon@...>
Description : Driver for the Chinese Arduino boards (Zipped)
You can access this file at the URL:
To learn more about file sharing for your group, please visit:
Regards,
fleapowerus <wayne.dillon@...>
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Re: Faulty Mini 360 Buck voltage regulator in the nano-DDS kit
Yep. I'll be with my club station: W8MRC.
73, Jack, W8TEE
From: "bobarr@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Monday, June 20, 2016 10:10 AM
Subject: Re: [SoftwareControlledHamRadio] Re: Faulty Mini 360 Buck voltage regulator in the nano-DDS kit
?
Jack, I "second" your motion!
U doing Field Day? Listen for K4WC here in Concord, NC.
73, Bo
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Re: Faulty Mini 360 Buck voltage regulator in the nano-DDS kit
Jack, I "second" your motion!
U doing Field Day? Listen for K4WC here in Concord, NC.
73, Bo
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Re: Faulty Mini 360 Buck voltage regulator in the nano-DDS kit
Karl, nice to see another "old timer" still at it! I'm 76, still having a great time (between the pain pills).
I got an early start at 14, so I may have an advantage.
Don't give up on it, you will find plenty of help here.
I got interested in it because of the Arduino computer/software.
73, W4GHV since 54. Bo
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Re: Faulty Mini 360 Buck voltage regulator in the nano-DDS kit
Hang in there, Karl! This "software stuff' can turn out to be a lot of fun. I'm 73 and still learning new techniques every day, and I think that's what keeps us around!
73, Jack, W8TEE
From: "Karl Schwab ktschwab@... [SoftwareControlledHamRadio]"
To: "SoftwareControlledHamRadio@..."
Sent: Monday, June 20, 2016 9:35 AM
Subject: Re: [SoftwareControlledHamRadio] Re: Faulty Mini 360 Buck voltage regulator in the nano-DDS kit
?
Thanks Wayne for your offer; I'll?just wait for my 10 pcs to arrive from China, as I am not in a hurry to get this build up and running with all of the summer activities that?I will be getting involved in.? If it were Winter, that would be a different story, hi hi.? This radio project looks like it will be quite challenging, however.? This software stuff, will be all new to me.? At age 80, I hope that I will be able to handle it, hi hi.? Thanks again, 73, de KO8S, Karl
On Thursday, June 16, 2016 8:13 PM, "wayne.dillon@... [SoftwareControlledHamRadio]" wrote:
?
Karl,
If you're stuck for one I'll mail you one as soon as I check out my existing stock. Let me know if you need one quicker than it'll arrive from China! you good in QRZ.com?
Blessings
Wayne - NQ0RP
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Re: Faulty Mini 360 Buck voltage regulator in the nano-DDS kit
Thanks Wayne for your offer; I'll?just wait for my 10 pcs to arrive from China, as I am not in a hurry to get this build up and running with all of the summer activities that?I will be getting involved in.? If it were Winter, that would be a different story, hi hi.? This radio project looks like it will be quite challenging, however.? This software stuff, will be all new to me.? At age 80, I hope that I will be able to handle it, hi hi.? Thanks again, 73, de KO8S, Karl
On Thursday, June 16, 2016 8:13 PM, "wayne.dillon@... [SoftwareControlledHamRadio]" wrote:
?
Karl,
If you're stuck for one I'll mail you one as soon as I check out my existing stock. Let me know if you need one quicker than it'll arrive from China! you good in QRZ.com?
Blessings
Wayne - NQ0RP
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Thanks - I did see your post on measuring the VFO output. Unfortunately, I do not have an oscilloscope to see that aspect of the output. However, per your suggestion and measuring with my DVM, I get only 2-3 millivolt output on J2 and J3 - no difference, and certainly nowhere near 3-4 volts. Ivan - WC2S
From: "bobarr@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Sunday, June 19, 2016 8:34 PM
Subject: [SoftwareControlledHamRadio] Re: Pilot error?
?
Did you see my earlier post on how to measure the VFO output? I'll go looking for it and post it here.
73, W4GHV Bo
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Check the buffer transistors. What are the voltages on their pins?
Jack, W8TEE
From: "xeragi@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Sunday, June 19, 2016 6:11 PM
Subject: [SoftwareControlledHamRadio] Re: Pilot error?
?
Thanks for the suggestions. Since my original post, I reset the rotary encoder pin positions according to those I saw in W5GW's VFO checkout, and I think this question has been resolved.
I also aligned R8 to the correct voltage divider voltage (3.92v with my power supply) according to K5HDE's post, and hope that the AD9850 is happier.
However, I still do not see more than 2-3 millivolts output AC on my DVM at J3 as you recommended no matter where I put R1. ?I do not have a scope to verify the output frequency. J2 output is the same as J3, in the 2-3 mv range.
Any thoughts on this?
I also need to figure out how to create an LCD.h file which apparently I need to functionalize the latest revision of the VFO.ino - mine won't compile because the LCD.h file is missing.
BCI filter to be constructed when I get to ordering the parts!
Thanks Ivan - WC2S
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Correction to prior post. Installing the proper .ino compiles just fine, and the voltage on the LCD indicates 13.8 v input from power supply. Still no significant voltage from J3 or J2.
Ivan - WC2S
|
Thanks for the suggestions. Since my original post, I reset the rotary encoder pin positions according to those I saw in W5GW's VFO checkout, and I think this question has been resolved.
I also aligned R8 to the correct voltage divider voltage (3.92v with my power supply) according to K5HDE's post, and hope that the AD9850 is happier.
However, I still do not see more than 2-3 millivolts output AC on my DVM at J3 as you recommended no matter where I put R1. ?I do not have a scope to verify the output frequency. J2 output is the same as J3, in the 2-3 mv range.
Any thoughts on this?
I also need to figure out how to create an LCD.h file which apparently I need to functionalize the latest revision of the VFO.ino - mine won't compile because the LCD.h file is missing.
BCI filter to be constructed when I get to ordering the parts!
Thanks Ivan - WC2S
|
Re: New file uploaded to SoftwareControlledHamRadio
Thanks for the advice Jack. I ended up uninstalling Arduino IDE and reinstalling which assigned COM3 allowing communication with the Nano board. I was able to upload the new "Sketch", with Hanks voltmeter, and it works great, ?However, there is very little audio coming from LM386 output pin 5 -- less than 1/2vpp. ?I have routed that audio to? an 8 watt amp and speaker and its still to low !?
Question: 1) Is Q1 supposed to amplify the signal coming from pin 4 of the mixer?? ? ? I get a loss from Drain to?Source of Q1.
Comment: I changed R2 (220K supplied) to a 10M ohm since the apps info indicated a 10M ohm resistor for Q1 Source to Gate biasing.
Cheers, Jim - Ab1BR
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Re: New file uploaded to SoftwareControlledHamRadio
There are device drivers in the directory where you installed the IDE. There are two EXE files and you need to run the one that pertains to your system. Intel or AMD.) The COM port can change, so try those that are presented to you in the IDE. If none of those work, try rebooting the system after you have installed the device driver.
Jack, W8TEE
From: "ab1br@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Friday, June 17, 2016 3:44 PM
Subject: Re: [SoftwareControlledHamRadio] Re: New file uploaded to SoftwareControlledHamRadio
?
It apparently needs a cap. R Jack as my prg would not compile until I capitalized "R" in Rotary...
It compiles but I am unable to address the board with the laptop. It is not finding the com3 which I used initially to prog the Nano.
This perhaps a driver prob(?); when I follow Arduino help instructions and look for com ports in "Device Drivers", it doesn't appear nor is it shown in the Arduino pull-down menu?!. It used to! For some reason the driver is unable to assign com 3 as before.?
Is there a known good Nano v3 software driver available to download somewhere?
Tnx, Jim -Ab1BR
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Re: New file uploaded to SoftwareControlledHamRadio
If you are using Windows then you will need a driver for the USB interface chip. This is not specific to the Nano but is used by many other microcontrollers. The driver that is built into Windows is from one manufacturer, FTDI. They got upset about the fact that other manufacturers chips could use their driver so they updated the driver (via Windows Update) to not only block the other chips but to actually brick them. They got a lot of flack about bricking the chips and so removed that code but still block other chips.
It is possible that if you hadn't done a Windows update in quite a while then you may have been using the original FTDI driver that would work with non-FTDI chips.
Linux does not have this problem since the needed driver was not written by FTDI. I do occasionally have issues with losing the ports but then I have both the Arduino IDE and Codebender running at the same time (I am developing code running on three processors talking to each other) and they can fight for the ports. When that happens I have to reboot.
You will need the correct driver for the CH340G chip that is used on many of the Chinese boards. ?c | | | | | | Here you can download latest version of verified & working Windows 7 driver for Mini USB 2.0 to TTL 6Pin CH340G Converter sold as BTE13-009/USB. C... | | | | Preview by Yahoo | | | ?
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Jeff Tranter
jjpurdum