Re: TruSDX FTW
My guess is, it isn't across the RF output. [email protected]> wrote:
By
Jeff Reagan
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#9624
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Re: TruSDX FTW
Guys, first of all I am not an engineer.? ?Please go to trusdx forum and do a search for 1n4756a.? Read the posting by Sars.? He says no I'll effects, i.e. spurious or harmonics generated.? ?Our
By
Doug Hendricks
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#9623
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Re: TruSDX FTW
Oops. I tend to give people the benefit of the doubt. It begs the question, where was that zener really connected? [email protected]> wrote:
By
Jeff Reagan
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#9622
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Re: The Joy of Six
I built a 6 meter rig back in high school.? I had a WA8 call and collected QSL cards from 20 states.? Then I move to CA and channel 2 TV brought that to an end. Last year, I got motivated to get
By
Paul AA6PZ
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#9621
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Re: TruSDX FTW
I totally agree.? With the one diode as originally proposed, it would clip the waveform and generate harmonics.
By
Paul AA6PZ
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#9620
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Re: TruSDX FTW
Cooy and paste from above: " I? strongly encourage you to install a 1N4756A diode between rf and ground."
By
David
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#9619
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Re: TruSDX FTW
David: you would be correct, if the zener were placed across the RF output. Then it wouldn't work at all. The zener would probably blow right away. I got the impression this zener was placed in
By
Jeff Reagan
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#9618
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Re: TruSDX FTW
My understanding is that a Zener diode "Zeners" in the reverse direction, but acts as a regular silicon diode in the forward direction, i.e., with a nominal 0.7 V forward drop. Since the transmitter
By
David
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#9617
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The Joy of Six
...meters, that is. I have a vintage Heathkit SB-110A 6-meter transceiver that I purchased c. 2000 and am considering selling on ePay. I was hoping to get it going for the first time this past weekend
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David
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#9616
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Chelegence MC-750 vertical
Does anyone have any experience with this antenna?? I would love to hear about it.? Doug
By
Doug Hendricks
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#9615
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Re: How do I delete a group
I knew it.? After a couple of hours fiddling, I realized that you probably can't do it on the phone, and I was right.? Went to laptop and solved problem.? Sorry for troubling the group.? Doug
By
Doug Hendricks
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#9614
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How do I delete a group
I have several groups.io groups that I haven't used in a long time.? ?How do I delete them
By
Doug Hendricks
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#9613
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Re: Alpha Anxiety
So glad!! Big props for them
By
Cliff Sojourner K6CLS
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#9612
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Re: What happened to the bands? 20m is dead
You might want to look at https://www.swpc.noaa.gov/communities/radio-communications Paul
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Paul Simon
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#9611
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Re: Alpha Anxiety
David, woohoo! 73, Eric NF6S ex WD6DBM ? On Mon, Jun 10, 2024 at 1:28 PM, David via groups.io<dkvarn@...> wrote: I sent a message to Steve (Alpha pres) with full set of pix and
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Eric
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#9610
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Re: Alpha Anxiety
I sent a message to Steve (Alpha pres) with full set of pix and received a reply within a few hours. Another tuning box will be sent right away along with a return label. He said that the boxes are
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David
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#9609
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Re: What happened to the bands? 20m is dead
CME hitting today from M9.7 x ray flare on Saturday
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Cliff Sojourner K6CLS
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#9608
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Re: What happened to the bands? 20m is dead
On Mon, Jun 10, 2024 at 12:17, Doug Hendricks <[ki6ds1@...](mailto:On Mon, Jun 10, 2024 at 12:17, Doug Hendricks <<a href=)> wrote: > Not a signal to be heard here. What are you guys
By
Connie W6EFI
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#9607
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What happened to the bands? 20m is dead
Not a signal to be heard here.? What are you guys experiencing?
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Doug Hendricks
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#9606
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Re: TruSDX FTW
I prefer units, such as the (tr)uSDX, which does not have a built-in battery. ?That allows me to plug in batteries of varying voltages to safely check the SWR of portable antennas (or operate QRPp at
By
Ron, N6YWU
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#9605
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