Re: 40m QRP Transmitter Success
I've built several Pixies and none of them can hold a candle to the Forty-9er in terms of what can be heard. Also, the power output from the Pixie is pretty low. Indeed, I never made a contact with
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jjpurdum
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#126
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Re: 40m QRP Transmitter Success
Thanks for the tip on the cases, Jack. I need to take a hard look at all the choices because with all the "revisions" I have in mind, I want to be able to fit everything in. :-) I'd like to ask
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aaronhev@...
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#125
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Re: Purpose of this Group
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
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jjpurdum
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#124
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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
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Gary White <white512@...>
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#123
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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
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David Fine
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#122
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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
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aaronhev@...
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#121
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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
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jjpurdum
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#120
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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:
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Dennis Kidder W6DQ
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#119
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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
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aaronhev@...
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#118
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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
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jjpurdum
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#117
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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
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Farrukh Zia
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#116
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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
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wp3dx@...
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#115
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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
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aaronhev@...
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#114
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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.
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jjpurdum
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#113
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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
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jjpurdum
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#112
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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
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Gary White <white512@...>
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#111
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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
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jjpurdum
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#110
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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
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Dennis Stage <dennisstage@...>
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#109
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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:
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Dennis Stage <dennisstage@...>
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#108
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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.
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jjpurdum
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#107
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