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Evan, That all looks good, thanks for doing such a thorough analysis! IMD could vary wildly depending on mike gain, and RV1 setting. Also, various builds may have significantly different gains due to

Jerry, I did do the testing of my modified v4 against my unmodified v5.? I have posted the power levels of the v4 on this thread.? The IMD measurements that I got are as follows: Modified v4:

I am looking forward to this talk.? I have at least one ?BITX that I plan to convert. 73 Evan AC9TU

I am really looking forward to this talk. It is the summary of almost a year's experiments in SDR starting from zero. I also describe how to convert a standard issue ubitx into an sdr using a

farhan@...> wrote: *** In a former life, I was responsible for repair & maintenance of something called the "Omni 2000". It was an elaborate rack wiring tester. Given a prewired equipment rack,

http://qrparci.org/?utm_source=sendinblue&utm_campaign=News_04012021&utm_medium=email note this talk " *Ashhar Farhan VU2ESE - sBITX - An Open Source SDR that YOU can hack!"* -- 73 Bob? KD8CGH

The smart, handsome, modest author of that BOM would like to point out that it is for V1.02, not V1.01, so not ideal for Justin. There is a V1.01 BOM here /g/ucx/files/uSDX.xlsx And,

Well that explains things. I didn’t realise that they had it that bad. Over there. Just goes to show you how different the world is these days. I guess I’ll wait awhile. Poor guy. 73, Robert,

Justin, I found the website where I saw the uSDX BOM for Digikey. Here’s the URL: /g/ucx/files/WB2CBA%20uSDX%20PCB%20V1.02%20Digi-Key%20BOM (

One could also get FM by doing it like many old FM mobiles did, by having a separate FM oscillator that was then mixed up with the LO to the TX frequency. In Mobira RC25 this was a 10.7MHz crystal vxo

I got delivery from there this week. Ordered March 26.

Not sure where Sunil is, but a good bet he's somewhere near Mumbai.

Hello everybody, Does anyone know if, I think their name is, Inkits is open, ( their URL is amateurradiokits.in ). I ordered a uBitx 5” Nextion universal case, with all the goodies included, from

Bob, I'm interested in building the uSDX. What is the cost for the boards & shipping? I'm interested in the 10 watt build as well. I'm in zip code 44124. Dave KE8PXV Sent from ProtonMail mobile

I have the V1.02 boards with the plug in band modules. https://antrak.org.tr/blog/projeler/usdx-an-arduino-based-sdr-all-mode-hf-transceiver-pcb-iteration-v1-02/ Later versions had 3 switched bands

Robert, I ordered boards using the V1.01 files which were the latest on the antrek site, it appears there some mods that need to be made to the board - boards are done and shipped.? As far as the

https://en.wikipedia.org/wiki/Phase_modulation _._ [email protected]> wrote:

Guys since I am lazy I will do a partial repost - this is necessary as I did not provide the link that my txt implied that I would - "In terms of? ?code for the Si570 I? note this contribution has

ARC-5. I made a linear in one. It had 4 6LQ6 tubes. A separate power supply sitting on the floor. I used the roller coil for my pi-network. On 15M, it only used a quarter turn at the end. As a

When I was a kid, a friend and I discovered that a battery operated toy motor made a "nice" transmitter. We decided to get on the air. We strung the longest antenna we could, attached the antenna to