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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
By David Fine · #146 ·
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
By jjpurdum · #145 ·
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
By jjpurdum · #144 ·
Re: How do I connect the rotary encoder ?
First, download Farrukh's document: http://www.farrukhzia.com/k2zia/dds-vfo-assembly-manual-rev2.pdf and look at the encoder on the schematic: 'D' on the schematic is the data line, or DT. Now follow
By jjpurdum · #143 ·
Re: How do I power the 49er ?
What are you using to power the 49er with, battery, wall wart, 12 volt supply???
By David Fine · #142 ·
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
By Aaron Heverin <aaronhev@...> · #141 ·
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 To: SoftwareControlledHamRadio@... Sent: Saturday, April 9, 2016 6:31 PM Subject: [SoftwareControlledHamRadio]
By jjpurdum · #140 ·
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
By David Fine · #139 ·
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
By Aaron Heverin <aaronhev@...> · #138 ·
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
By wp3dx@... · #137 ·
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
By wp3dx@... · #136 ·
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
By Dennis Stage <dennisstage@...> · #135 ·
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
By wp3dx@... · #134 ·
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
By wp3dx@... · #133 ·
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
By white512@... · #132 ·
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. To:
By jjpurdum · #131 ·
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
By David Fine · #130 ·
Re: Purpose of this Group
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,
By jjpurdum · #129 ·
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
By David Fine · #128 ·
Re: 40m QRP Transmitter Success
Thanks, Jack. I suppose that's another issue too, isn't it? 40m has been very rough lately for hearing any sort of signals worth copying. I've got the radio on now and there are LOADS of CW signals on
By Aaron Heverin <aaronhev@...> · #127 ·