Re: More power
Hi Rich,
The "part 2" of the QST article on the WA2EBY amp notes that you can set a resistor pad up for 5 W input to the original 1 W input that WA2EBY's amp is designed for, but you waste 4 W in
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W1PJE
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#29155
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Re: Raduino v1.17 with FINE TUNE capability released
Great! Thanks!
?
--
John - WA2FZW
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John P <j.m.price@...>
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#29154
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Re: Raduino v1.17 with FINE TUNE capability released
OK, point taken!
I think we can improve this in the next version.
73 Allard PE1NWL
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Allard PE1NWL
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#29153
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Re: Amp.
The manual is attached to this post.? Page 42 has a schematic of the amplifier module, but I did not see a complete schematic for the entire amp.? More information is available at
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KC8WBK
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#29152
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Re: Amp.
http://www.philipstorr.id.au/radio/seven/five/WA2EBY%20HF%20Amp%20Pt%201.pdf
Search shows lots on WA2EBY amp.
Mike, WA6ISP
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Michael Hagen
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#29151
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Re: Raduino v1.17 with FINE TUNE capability released
I too would like to see at least the 2nd say 7.123.45.
?
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?
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David
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N8DAH
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#29150
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Amp.
* Hello KC8WBK, I would like to see the schematic of your linear,
please send a copy to me? Thank you very much.*
*-- *
* 73 de Jorge PY2PVT Campinas SP GG67MD*
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Jorge Luiz Fenerich
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#29149
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Re: More power
So far, I am impressed.? I was able to qso with two stations that previously could not hear me on 5W.? It might have been better propagation that day, but I think that this configuration is similar
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KC8WBK
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#29148
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Re: More power
I am in the process of building a WA2EBY amp from a set of boards I bought from Sunil's store on EBay (also came with a pair of IRF510's and a rotary switch). This is the amp the HF Packer was based
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Richard Andrew Knack
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#29147
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More power
I had my HFPacker amp refurbished and set up for 5 watts in, 38 watts out.? It makes things easier although it is less of a challenge.? I built the amp from a kit about 10 years ago so it is one of
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KC8WBK
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#29146
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Re: Dial is locked
Good! Yes, correct grounding from one central ground point is usually
recommended especially in RF environments. Glad you were able to get it
working!
73 Allard PE1NWL
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Allard PE1NWL
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#29145
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Re: Si5351A: facts and myths
Hans,
Now that I think about it, divides were avoided because I thought it might be going into an FPGA.
But that never happened.
Jerry
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Jerry Gaffke
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#29144
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Re: Si5351A: facts and myths
Hans,
I'm rather proud of the shifty trick in the new si5351bx routines: ??/g/BITX20/files/KE7ER/si5351bx_0_0.ino
( /g/BITX20/files/KE7ER/si5351bx_0_0.ino ) msa =
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Jerry Gaffke
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#29143
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Re: Raduino v1.17 with FINE TUNE capability released
Here's a thought!
In the "Fine Tuning" mode, instead of displaying the offset on the 2nd line of the display, would it be possible to display the full frequency on the top line, for example, "A
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John P <j.m.price@...>
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#29142
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Re: Dial is locked
Ok. Here is how I solved this.
i have completlyvredone the wiring keeping the negative sidew all togheter and positive ones all togheter.
not mixing grounds from other places!
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EA3IAV <Cesarleon@...>
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#29141
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Re: Bitx TFT display code
I came across your site and was looking all over to find some sample code but no joy. ?I'm very interested I will keep checking back.
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Steve Greer
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#29140
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Re: Si5351A: facts and myths
Hello Jerry
Your findings re the Si5351A slow register programming are fascinating to
me. They kind of imply the Si5351A DOES double-buffer the registers!
Amazing. I want to do lots more experiments
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Hans Summers
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#29139
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Re: Bitx TFT display code
Do you have a hardware list for your project.. I did not see a listing on
your site
I want of make sure I have the correct type of tft or I need to order one..
Joe
VE1BWV
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Joe
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#29138
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Re: Bitx TFT display code
Wow!,
The features look great.... cant wait to try it out.
Your website on the Colour TFT display and si5351 looks very interesting.
I like the idea of using the si5351
Thanks for the
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Joe
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#29137
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Re: Si5351A: facts and myths
Yes it is using the same SDA and SCL lines as the Si5351 just a different address. The display is a 5v one. I didn't know there was a choice. I separated the Nano and display so I could mount the Nano
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Jeff
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#29136
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