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Re: DDS VFO Mini-360 Buck Regulator
I found this re the Mini 360 on the web. With respect to using Wall Warts, or any switching power supply I have found the AD 9850 boards from China will generate some serious spurs and really like a
By Gary White <white512@...> · #123 ·
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
By David Fine · #122 ·
DDS VFO Mini-360 Buck Regulator
Wondering if there are any specs on the Mini-360 buck regulator that comes with the DDS VFO board. I've been looking at similar Mini-360s on eBay (although different design) and the specs for those
By aaronhev@... · #121 ·
Re: 40m QRP Transmitter Success
Looks good, Aaron. The case I used is no longer available from Amazon, unless you buy 100 of them! However, I did find another one that is a little different, but still has the hinged lid, which I
By jjpurdum · #120 ·
Re: 40m QRP Transmitter Success
Aaron, Great to hear that your prototype is working!? Good luck with the club project -- I hope your members enjoy your presentation and building the radios! 73, -dennis W6DQInyokern CA To:
By Dennis Kidder W6DQ · #119 ·
Re: 40m QRP Transmitter Success
I've posted a photograph of my prototype in the photos section. For the time being, the boards are sitting on plastic bags and foam pads. :-) The speaker output for the 49-er is being fed into a Radio
By aaronhev@... · #118 ·
Re: 40m QRP Transmitter Success
Super! Jack, W8TEE To: SoftwareControlledHamRadio@... Sent: Thursday, April 7, 2016 5:03 PM Subject: [SoftwareControlledHamRadio] 40m QRP Transmitter Success ? Afternoon to all.With
By jjpurdum · #117 ·
Re: Mystery board??
The mystery green board is a VSWR bridge. I bought it from kitsandparts Toroids, Ferrites, Parts, Kits, Toroid King, QRP Erector Set http://kitsandparts.com/ Toroids, Ferrites, Parts, Kits, Toroid
By Farrukh Zia · #116 ·
Re: 40m QRP Transmitter Success
Hi. That's great news, any pictures ? I'm waiting for one more part to come in the mail and will be ready to finish mine. Keep us posted. 73s Norbert
By wp3dx@... · #115 ·
40m QRP Transmitter Success
Afternoon to all. With everything finally completed, I fired up the first prototype of the 40m QRP Transceiver with the DDS VFO and the 49-er. Happy to report that the unit is up and running. Receive
By aaronhev@... · #114 ·
Re: Increment Problems
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.
By jjpurdum · #113 ·
Re: Increment Problems
The class name is capitalized, which is why you see the line: Rotary r = Rotary(2, 3); ? ? ? // Create encoder object and set the pins the rotary encoder uses. ?Must be interrupt pins. in the VFO
By jjpurdum · #112 ·
Re: Increment Problems
Jack, Now I am confused. The rotary library that came with the DDS-VFO is capitalized as is the include in the DDS into file. As is Brian Low¡¯s include library. 73 Gary
By Gary White <white512@...> · #111 ·
Re: Increment Problems
You are still using the wrong encoder library. I know this because the include does not use a capital 'R' for the file; it should be lowercase 'r'. Delete the Rotary library that comes with the IDE
By jjpurdum · #110 ·
Re: Increment Problems [1 Attachment]
Gary, Thanks for going to the trouble of developing a wiring check sheet. I completed all of the tests and it all checks out. I still think this may be a sketch problem: the fact that when I download
By Dennis Stage <dennisstage@...> · #109 ·
Re: Increment Problems
Just got back. Been at my mountain property trying to get a cabin built. Will all that you suggest later today. Thanks for the input. To: SoftwareControlledHamRadio@... From:
By Dennis Stage <dennisstage@...> · #108 ·
Re: Antenna Analyzer
I've already started it...that's where the photo came from (simulated data). Right now I have it working on a breadboard, but the new part of the circuit is on the homemade board you see in the photo.
By jjpurdum · #107 ·
Antenna Analyzer
Any thoughts to developing an antenna analyzer using the DDS VFO as the core of the analyzer?
By white512@... · #106 ·
Re: Increment Problems [1 Attachment]
Glad to see this up on the site...I'm sure it will be helpful. Jack, W8TEE To: SoftwareControlledHamRadio@... Sent: Wednesday, April 6, 2016 3:25 PM Subject: Re:
By jjpurdum · #105 ·
Re: Increment Problems
A continuity matrix for your encoder issue
By Gary White <white512@...> · #104 ·