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Re: the 50k ohm pot
Yeah, I'm pretty sure what he's referring to. but he says: ? I followed the detailed instructions on the 49er board and left the pot out but in one of the pictures I see the pot installed.? did something change? I cannot find an image with that pot installed. If you have one, can you copy it to me. I cannot find a picture of the original rig that he describes. Jack, W8TEE From: "hdskullfire2@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Friday, May 13, 2016 11:58 AM Subject: Re: [SoftwareControlledHamRadio] the 50k ohm pot Jack, I think he's referring to the image of the unmodified 49'er in the 49'er DDS/VFO manual.. That little square white and blue pot. That is the one that is not installed on the DDS/VFO.. Steve NS3L
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Re: the 50k ohm pot
OK, I recall that part, but I can't find the photo you're referring to. Where is that? Jack, W8TEE From: "k7ndm.nate@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Friday, May 13, 2016 11:45 AM Subject: Re: [SoftwareControlledHamRadio] the 50k ohm pot I am at work now but it is the one that had 3 prongs and we had to pur a jumper in its place. On the instructions its not there but in one pic with the green bci filter it shows up
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Re: My Forty-9'er w/DDS-VFO progress..
Nice! You have way too much nice test equipment. You need to give some of it away...to me! Jack, W8TEE From: "hdskullfire2@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Friday, May 13, 2016 11:37 AM Subject: [SoftwareControlledHamRadio] My Forty-9'er w/DDS-VFO progress.. I've been doing pretty good with my progress do far.. Awaiting a ABS Project case, standoffs, and some other stuff.. Hopefully have something other than a couple pcb's and cables.. I've created an album on Flickr showing close detail, and all the progress photos to date.. I'll add more as I move along.. Enjoy the photos... Steve NS3L |
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Re: the 50k ohm pot
Which pot are you referring to? Jack, W8TEE From: "k7ndm.nate@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Thursday, May 12, 2016 11:27 PM Subject: [SoftwareControlledHamRadio] the 50k ohm pot I followed the detailed instructions on the 49er board and left the pot out but in one of the pictures I see the pot installed.? did something change?
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Re: Looking to gather the parts
I'll be the fat old guy with a name tag that has "Jack Purdum" on it!! ?I may be wearing my favorite Tee shirt: ? ?There are 10 types of people in the world: ? ? ? Those who understand binary ? ? ? ?and those who don't. Think about it... Jack, W8TEE From: "n4elm@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Wednesday, May 11, 2016 3:31 PM Subject: [SoftwareControlledHamRadio] Re: Looking to gather the parts Thanks Jack! Good info on the page and I ordered a PCB kit. Now just need to find the other parts. I should see you at FDIM. I've signed up for all the?activities. I'll be the older pudgy, grey haired guy with a bald spot :-) 73 - Dave, N4ELM
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Re: Where to purchase a enclosure for my DDS/VFO 49'er?
I bought the enclosure from Amazon, but they no longer carry it. My future projects will use on of these: These also have a hinged lid. I didn't use a cutout for the display, but kept it behind the cover. It protects the LCD surface.? Standoffs are expensive for what they are. I suggest a few extra nuts on the bolts, or buy a small length of plastic tubing and cut to length. Hobby stores usually carry it. Jack, W8TEE From: "hdskullfire2@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Wednesday, May 11, 2016 8:28 AM Subject: [SoftwareControlledHamRadio] Where to purchase a enclosure for my DDS/VFO 49'er? Who has found a good source for enclosures? Any solid color ones with cutout/s for the Display? I'd like to purchase an enclosure for my DDS/VFO 49'er similar to the one in the QST article, but a bit larger so I can add to it..? 1-2 window would be nice.. I'd also like to know where I have to go to get the PCB board standoff's.. Steve NS3L
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Re: Looking to gather the parts
Hi Dave: If you want to use a PCB, Farrukh is selling them at a pretty good price: I'll be at the FDIM conference...perhaps we can have an eyeball QSO then. Jack, W8TEE From: "n4elm@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Tuesday, May 10, 2016 4:18 PM Subject: [SoftwareControlledHamRadio] Looking to gather the parts I read the QST article and while it looks like a good project to learn about controlling DDSs with Arduinos, I was not too impressed with the RF part. My plan is to get all the DDS & Arduino & LCD & encoder stuff together and couple it to a homebrew MMR40 radio. While the MMR40 is a little more expensive in parts and more involved?construction, it also has more useful features - single signal reception and supports both SSB & CW operation at 5 watts output. The software challenge will be to modify the controller to operate the DDS at ~ 3 MHz for the LO to run the radio. Enhancements could be adding band memories to move quickly from the CW to SSB parts of the band and a digital interface for PSK and/or JT-65 modes. I will be looking at FDIM & Hamvention to see if I can get all the controller parts together. I would really like to find a single source for all the controller stuff. I have most of the radio parts together but will still be looking for some items to complete the list. Here is a link to homebrewing a MMR40: ? 73 - Dave, N4ELM |
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Re: 49'er - Power supply voltage vs Wattage out??
?It's all in the antenna. Amen to that! I honestly believe that, dollar-for-dollar, putting cash into the antenna usually pays bigger dividends than almost anything else. As to me, I have a crappy end-fed wire thrown up in the trees. But, I look at Roberto in Italy with 160' tower and a 3 element beam on 40M running 500W and think: "Even I could make contacts with that setup." Yet, I really do get a kick out of running a few watts and seeing just how far I can go with it. I think of the guy in Japan who made DXCC with 500mW. Now there's some operating skill! I also think of all the hams who don't know Morse and how much they are missing. It's kinda sad, really... Jack, W8TEE From: "Aaron Heverin aaronhev@... [SoftwareControlledHamRadio]" To: SoftwareControlledHamRadio@... Sent: Saturday, May 7, 2016 11:40 PM Subject: Re: [SoftwareControlledHamRadio] 49'er - Power supply voltage vs Wattage out?? I ran my 49-er at 11.5 volts accidentally and destroyed the original D882. Up until it smoked, I was getting around 5-6 volts out. When I replaced the D882 and adjusted the output of R1, I'm now getting about 3 watts out - which is just fine. I wouldn't advise running the D882 any higher than the 4 volt peak to peak voltage as the manual states. Even at 3 watts out, I'm making lots of contacts with the thing. It's all in the antenna. :-) Aaron - N2HTL On Sat, May 7, 2016 at 12:35 PM, Jack Purdum jjpurdum@... [SoftwareControlledHamRadio] <SoftwareControlledHamRadio@...> wrote:
Aaron
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jjpurdum