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Sorry to see Chuck close QRP-Tech, let's see where this group goes.
Sorry to see Chuck close QRP-Tech, let's see where this group goes.
I will miss Chuck's posting.
cheers, Graham ve3gtc
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Graham <colonelkrypton@...>
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#1
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Re: Sorry to see Chuck close QRP-Tech, let's see where this group goes.
What happened? ?I did not understand his last sudden message??
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Troy - K4JDA
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#2
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Re: Sorry to see Chuck close QRP-Tech, let's see where this group goes.
I don't know. His last posting was a surprise.
He was never one to suffer fools so your guess is as good as mine.
We may never know.
cheers, Graham ve3gtc
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Graham <colonelkrypton@...>
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#3
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Re: Sorry to see Chuck close QRP-Tech, let's see where this group goes.
Read the DSB thread, it's all there.
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Faisal Akber (VA3SFA)
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#4
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Re: Sorry to see Chuck close QRP-Tech, let's see where this group goes.
the group will miss him, he did do a lot of projects technically oriented
Al VE3GAM
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VE3GAM Al McRorie
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#5
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Re: Sorry to see Chuck close QRP-Tech, let's see where this group goes.
Yes, he did everything he could to keep the building aspect of the hobby alive.? But we all ride off into the sunset eventually. He deserves our gratitude for the enormous amount of work he put into
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bleepingbeep
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#6
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good to see new group to move to
Well, things do change and I think Chuck had his mind in a few camps at once. As it was (and is) a physicist for a long time it is good to see that he still feels he wants to and can still contribute
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Brien Pepperdine <brianpepperdine@...>
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#7
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Do you have a favorite home brew short wave receiver to build with scouts?
Do you have a favorite home brew short wave receiver to build with scouts?
I wanted to kit crystal radios for the local kids? and concluded that simple crystal radios got very little bang for the
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Rob <roomberg@...>
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#8
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Re: Do you have a favorite home brew short wave receiver to build with scouts?
Hi Rob,
I have a schematic for a good DC receiver here:
https://miscdotgeek.com/building-a-direct-conversion-receiver-part-2/
I wrote that up to explain fully how it works as well, which may or may
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Ryan Flowers
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#9
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Re: Do you have a favorite home brew short wave receiver to build with scouts?
Rob,
I watch the Internet for radio kits and accessory kits, and list them at
radiokitguide.com
It's currently in need of an update, but there are some offerings to
consider.
A great kit supplier
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Neil Goldstein
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#10
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DDS VFO!
I am deigning/building a DDS VFO for the NorCal40 and NorCal Sierra.
The 49er DDS VFO could be used for both of these trancievers.
Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
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Bob Macklin <macklinbob@...>
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#11
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Re: DDS VFO!
Hi Bob,
That's great. Are you using the Si5351 as the DDS? If you are that
makes Things easier in that It can be used for both as the LO at the RF
mixer and BFO for the IF mixer.
I'm interested
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Faisal Akber (VA3SFA)
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#12
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Re: DDS VFO!
I have qrp-tech boards that need building, a DDS VFO would be great!
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Michael N6MST
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#13
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Re: DDS VFO!
Hi
Please not that the Si5351A is not a DDS. It is a synthesizer. BIG technological difference.
Bo
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Bo, OZ2M
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#14
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Re: DDS VFO!
The design is for either the QRP Labs SI 5351 module or the AD9850 Type I module.I am planning firmware for both.
I use serial LCDs. I use Newhaven LCD modules. If I must use a parallel LCD I use a
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Bob Macklin <macklinbob@...>
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#15
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Re: DDS VFO!
If you can find a 49er VFO you could use that.
I don't like the QRP Labs VFO because the serial port is not available and it uses a parallels.
Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The
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Bob Macklin <macklinbob@...>
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#16
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Re: DDS VFO!
Why does that matter? It accomplishes the same thing if you use the digital
output of the 9850.
Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
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Bob Macklin <macklinbob@...>
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#17
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Re: DDS VFO!
Hi
Differences among other things:
- A DDS is way faster than a synthesizer
- A DDS has, often, better frequency resolution
This being said if the choice is between an AD9850 and the Si5351A I will
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Bo, OZ2M
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#18
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Re: DDS VFO!
Arduino (uno or nano) , SI5351(many sources), 2 line by 16 char LCD(many many sources).
That will do it all very acceptable and the code to do that is out there.? Its good
to VHF.
The ad9850 is a
By
ajparent1/kb1gmx
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#19
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Re: DDS VFO!
Are you talking about the Jack Purdum / Farrukh Zia board? If so Jack mentioned in the SoftwareControlledHamRadio group that there are lots of boards out there based on their design. Might be worth
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Michael N6MST
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#20
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