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Ocean drifter using Hans' type of WSPR telemetry
Lots of possibilities inland huh. Thanks for the information. 73 Phil WA8YAN Sent from my Verizon, Samsung Galaxy smartphone
Lots of possibilities inland huh. Thanks for the information. 73 Phil WA8YAN Sent from my Verizon, Samsung Galaxy smartphone
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By
wa8yan.radio
· #85632
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Balloon antenna work in progress.
#Balloon
#antennas
#u4b
For cement, how about a light coat of Polyeurethane from a spray can? Lightest application possible.... Ted K3RTA
For cement, how about a light coat of Polyeurethane from a spray can? Lightest application possible.... Ted K3RTA
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By
Ted
· #85631
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missing parts
Those tyvex packages take a beating and still make it across the globe. JP KA3BWP
Those tyvex packages take a beating and still make it across the globe. JP KA3BWP
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By
JP McGinley
· #85630
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12V to 9V Converter : QDX ?
Willie - Yes, that address is correct ... many thanks! 73 - Bruce K1FFX
Willie - Yes, that address is correct ... many thanks! 73 - Bruce K1FFX
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By
Bruce K1FFX
· #85629
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2N2222 challenge photos and videos
Much better today. Almost back to normal (whatever that is.) Glad to hear you're feeling better too. Lot's got sick; haven't heard of any serious issues.
Much better today. Almost back to normal (whatever that is.) Glad to hear you're feeling better too. Lot's got sick; haven't heard of any serious issues.
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By
Daniel Walter
· #85628
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12V to 9V Converter : QDX ?
Doh! Didn’t think to click on “Show More” and look for the link, not a big fan of YouTube, as you might have guessed. 🙈 73, Willie N1JBJ
Doh! Didn’t think to click on “Show More” and look for the link, not a big fan of YouTube, as you might have guessed. 🙈 73, Willie N1JBJ
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By
William Smith
· #85627
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12V to 9V Converter : QDX ?
Did you people not even read the description on his YouTube video? The link is right there. Link: https://www.printables.com/model/152388-housing-box-and-the-lid-for-the-dcdc-down-converte
Did you people not even read the description on his YouTube video? The link is right there. Link: https://www.printables.com/model/152388-housing-box-and-the-lid-for-the-dcdc-down-converte
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By
JT Croteau
· #85626
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Balloon antenna work in progress.
#Balloon
#antennas
#u4b
Hi Alan don't try and sand fine wire just stick it into a blob of 340c solder till it is tinned Dave VE3KCL
Hi Alan don't try and sand fine wire just stick it into a blob of 340c solder till it is tinned Dave VE3KCL
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By
VE3KCL
· #85625
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2N2222 challenge photos and videos
Just because I prefer real radios that glow in the dark, may I suggest a 4-1000A challenge for next year? I once made a regenerative receiver using an 833A triode. Mark K9TR
Just because I prefer real radios that glow in the dark, may I suggest a 4-1000A challenge for next year? I once made a regenerative receiver using an 833A triode. Mark K9TR
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By
Mark
· #85624
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12V to 9V Converter : QDX ?
Couldn’t easily find his website, but found: https://www.printables.com/model/152388-housing-box-and-the-lid-for-the-dcdc-down-converte An hour and change to print it, it’s running now, thanks! Bruce,
Couldn’t easily find his website, but found: https://www.printables.com/model/152388-housing-box-and-the-lid-for-the-dcdc-down-converte An hour and change to print it, it’s running now, thanks! Bruce,
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By
William Smith
· #85623
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Low Pass Filter Caps dual positions puzzling
Alan, your test circuit looks great. Can you post pictures of the pcb that you connect between NanoVNA&Filters, please. thanks JP KA3BWP
Alan, your test circuit looks great. Can you post pictures of the pcb that you connect between NanoVNA&Filters, please. thanks JP KA3BWP
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By
JP McGinley
· #85622
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2N2222 challenge photos and videos
Hi Dan Hope your Covid is going OK... personally I feel a lot better today. Almost back to normal. This 2nd time, seems a lot more mild than the first bout. Well it could be tempting to try. Though Da
Hi Dan Hope your Covid is going OK... personally I feel a lot better today. Almost back to normal. This 2nd time, seems a lot more mild than the first bout. Well it could be tempting to try. Though Da
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By
Hans Summers
· #85621
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2N2222 challenge photos and videos
"TO92 style plastic 2N2222 have a higher rated power dissipation and the SMD version is even higher still! " So, Hans, next year you'll have an SMD version with 10 sq cm heat sink and get 8 watts out
"TO92 style plastic 2N2222 have a higher rated power dissipation and the SMD version is even higher still! " So, Hans, next year you'll have an SMD version with 10 sq cm heat sink and get 8 watts out
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By
Daniel Walter
· #85620
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12V to 9V Converter : QDX ?
Yes finding a 3D printer? I had a friend local in Oregon printer mine it’s a nice case
Yes finding a 3D printer? I had a friend local in Oregon printer mine it’s a nice case
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By
Edward Reynolds
· #85619
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12V to 9V Converter : QDX ?
Go to his website and the files are there Ed N7SNT
Go to his website and the files are there Ed N7SNT
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By
Edward Reynolds
· #85618
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12V to 9V Converter : QDX ?
I just mostly-skipped through the 12.5 minute video explaining what and why and how, but didn’t see anything about the STL files for the case, do you know if it was available on Thingiverse or anywher
I just mostly-skipped through the 12.5 minute video explaining what and why and how, but didn’t see anything about the STL files for the case, do you know if it was available on Thingiverse or anywher
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By
William Smith
· #85617
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Balloon antenna work in progress.
#Balloon
#antennas
#u4b
In playing with the float altitude, I am going to have to add some ballast with a 32” balloon. I had to make a strain relief for the dipole but the .011 enameled wire I am using is working well. The G
In playing with the float altitude, I am going to have to add some ballast with a 32” balloon. I had to make a strain relief for the dipole but the .011 enameled wire I am using is working well. The G
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By
Colin Kaminski
· #85616
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12V to 9V Converter : QDX ?
Anyone in the Boston, MA, area with a 3D printer? I just made an Amazon order for the DC-to-DC converter in LY2H's video. It would be fun to have the matching case. Thanks! - Bruce K1FFX
Anyone in the Boston, MA, area with a 3D printer? I just made an Amazon order for the DC-to-DC converter in LY2H's video. It would be fun to have the matching case. Thanks! - Bruce K1FFX
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By
Bruce K1FFX
· #85615
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Balloon antenna work in progress.
#Balloon
#antennas
#u4b
Well, I'm calling my 0.002 Inch diameter (44 guage)+ Dyneema fishing line antenna a failure and moving on to bigger wire. I got everything stretched out on the floor, got the wire cemented to the line
Well, I'm calling my 0.002 Inch diameter (44 guage)+ Dyneema fishing line antenna a failure and moving on to bigger wire. I got everything stretched out on the floor, got the wire cemented to the line
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By
Alan Kilian
· #85614
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Operational Delay from FED X
I received an "operational delay" notification from FedEx last Friday. They delivered my package Sunday afternoon. Overall, my FedEx experience has been better than with UPS with regards to "lost" pac
I received an "operational delay" notification from FedEx last Friday. They delivered my package Sunday afternoon. Overall, my FedEx experience has been better than with UPS with regards to "lost" pac
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By
Mark
· #85613
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