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Re: QRP Quarterly Article
I don't have my copy yet, but good to know it's out. Actually, when I get the software done for the antenna analyzer, I'll integrate that into the 49er and post the file. My guess is Tuesday of next
By jjpurdum · #213 ·
QRP Quarterly Article
Nice article in the new issue of QRP Quarterly, Jack. Where do we slip that code into the 49er project code to take advantage of the quick QSY feature. Dave, W0DF
By dfine01 · #212 ·
Re: winding torrids and red wine don't mix
Hi Jack... and thanks for the reply. Just so there's no confusion, the Mini-360 bucking module has indeed been adjusted for a solid 5v as per Farrukh's instructions. The "issue" I was having - if you
By Aaron Heverin <aaronhev@...> · #211 ·
Re: winding toroids and red wine don't mix
OK...rained off and on most of the day so it was a good day to work on the board. I fixed the toroids and found a few other mistakes and questionable solder joints....adjusted the VFO output to about
By kc1at · #210 ·
Re: winding torrids and red wine don't mix
Thanks Dennis....I'll pull a turn off each of those toroids. (notice the correct spelling) Aaron....I hate to tell ya why the 882 blew out....BUT, the scope was on my other bench and I didn't have a
By kc1at · #209 ·
Re: winding torrids and red wine don't mix
Aaron: The rig is really rated at a max of 3W, not 5W. I would encourage you to limit the input voltage to the rig at 12V and adjust the VFO board for 5V per Farrukh's instructions. Adjust so output
By jjpurdum · #208 ·
Re: winding torrids and red wine don't mix
Hi Don. Dennis already responded to the coil issue you were having so I won't tie up the thread with that. I'm curious though how you happened to fry the D882. As I mentioned in an earlier thread, I
By Aaron Heverin <aaronhev@...> · #207 ·
Re: winding torrids and red wine don't mix
Hi, Don Nope, you have one extra turn on each coil.? Each time the wire passes through the core counts as a turn.? 12 passes through the core means 12 turns. Hopefully that will help clarify the
By Dennis Kidder W6DQ · #206 ·
winding torrids and red wine don't mix
OK so my 49'er is deaf...worse than me (double hearing aids)...takes about 1 millivolt out of my Wavetek SG to hear anything worth listening to.....(like a Hallicrafters S-120 with low line voltage.)
By kc1at · #205 ·
Re: DDS-VFO, Display, & Rotary encoder working..!!
That's because the lowest increment value is 10, not 1. Jack, W8TEE To: SoftwareControlledHamRadio@... Sent: Thursday, April 21, 2016 7:44 AM Subject: [SoftwareControlledHamRadio] DDS-VFO,
By jjpurdum · #204 ·
DDS-VFO, Display, & Rotary encoder working..!!
I finally got the DDS-VFO, Display, & Rotary encoder working..!! It appears everything loaded fine.. Just have to do some color coding of wires, only had blue ones to start.. Waiting on the multi
By ns3l@... · #203 ·
Re: Setting the voltage on the Mini-360 regulator
Hi Steve. Yes... that lettering on the DDS VFO board is a bit of a confusing issue especially for anyone not familiar with an Arduino, or header pin configuration for that matter - although it's not
By Aaron Heverin <aaronhev@...> · #202 ·
Re: Setting the voltage on the Mini-360 regulator
blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px #715FFA solid !important; padding-left:1ex !important; background-color:white !important; } I did get 12v and ground on pin
By Steve Nordahl <ns3l@...> · #201 ·
Re: Setting the voltage on the Mini-360 regulator
Pins 8-10 should all be +5V, while 3-6 are GND. Pins 1 and 2 should be +12V with respect to GND. The fact that you do not see 12V on pin 2(+) and 4(-) makes me wonder about the external power supply.
By jjpurdum · #200 ·
Re: Setting the voltage on the Mini-360 regulator
OK I may have figured this out.. On the DDS-VFO board itself there is lettering all along J1 and I tried connecting to the two lettered "2" and "4" however I actually ended up connecting to the right
By ns3l@... · #199 ·
Setting the voltage on the Mini-360 regulator
I have a dilemma, I followed the instructions for setting the regulator, however the connection points called out J1, pins 2 & 4 for the 12V+ did nothing. I had the 12V ground to one of the G's. I
By ns3l@... · #198 ·
When is an Arduino not an Arduino
Some may recall or have TI Launchpads. Similar in operation to Arduino, there is an IDE that allows you to develop Arduino code into them. Here is a screenshot of the free IDE, called Energia - look
By white512@... · #197 ·
Re: Heatsink for the 49'r?
Someone once told me: ? ? ?All electronic devices run on white smoke. Once the smoke gets out, the device dies. Seems to be true... Jack, W8TEE To: SoftwareControlledHamRadio@... Sent:
By jjpurdum · #196 ·
Re: Heatsink for the 49'r?
All: It wouldn't hurt to put one on, especially if you're running over 12V on the board. I've not tested it, but i read somewhere that the PA transistor get very hot above 12V. Jack, W8TEE To:
By jjpurdum · #195 ·
Re: Capacitor for the LC Circuit is a 56pF
You can order the parts for the 49-er modifications - along with pretty much anything else you'd need - from either Debco Electronics ( www.debcoelectronics.com), or from Tayda Electronics (
By Aaron Heverin <aaronhev@...> · #194 ·