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The transistor is IRFP 150 that is being used in my easy Bitx after the driver of 2 no's 2n3904 . By mistake I mentioned the FET as IRF150 it's IRFP150. The make is Harris . Picture attached Regards

You can read it here https://freedv.org/freedv-specification/

My intention to use IRFP150 with 200mw drive was for pure experimentation. Secondly i wanted a solution for changing the mosfet if someone using our kit burns the mosfet either while setting the bias

Gaah, they beat us to it. The good news is, in open source, we just get to use it all the same! I am off to read the code... - f

I am expecting delivery in a few days of an RS918 (originally designed by M0NKA).? It supports Freedv, just for your information. Gerry Sherman Sent by the Linux Thunderbird

I think that is wonderful, and when you remember the name please send it to me. I am at the point where I sort of forget things temporairly also, so that is no big deal. Oh, well. I am interested in a

The digital voice mode that could possibly replace ssb is freedv. It is actually two things that work together. First, the voice is converted into a stream of very few bits per second. A usual voice

If it's not affecting performance now, I doubt it would affect anything mostly by situating the board within a specific build or position. Good luck on the project!

Gordon: Either RadComm or Sprat had an article how students in England were fascinated by Morse code. When asked why, they replied that "voice" (SSB) didn't interest them because they could do that

I am building a V5 into a pelican style case for POTA activations.? My concern is that while inspecting the board, I noticed that one of the RV3 pot nearest the finals is slightly twisted or

Well, for several years now we have observed some thing very fascinating among middle schoolers in our local school. They are not interested at all in walkie-talkies They are not interested at all in

Hi All, I finally found some time to try fixing this issue. I moved the LED and photoresistor out of the board and over the AUDIO socket. Now there is no long cables connecting the photoresistor to

Thank you for the information. I see you and I are both CW old timers. So far we have lost about half of the CW people without any real replacements coming along, but you and I came along during a

Eventually there will be something that replaces analog single side band voice. But it’s not yet here. And I think I have been doing CW for 55 years or more. That’s my thought Gordon Kx4z

I need help with reloading the V6 soft ware. If you can help me, please call 907-262-7699. i have read numerous times the instructions on the web and have attempted to follow them with no success. I

I have been sending Morse code now for 57 years, and I will just continue to send Morse code, but since you seem to be very knowledgeable is there a digital voice modulation system that will

When you are running mm you can do some things that other people cannot do. I run mobile CW when I am traveling across the country, and that works very well for me. I have a lot of different

Single side band typically requires a 10 DB signal to noise ratio for useful communications in a disaster. That is, the efficient transfer of information My contrast, using the same base noise in that

And of course the header on the v6 Raduino has been expanded by 2 pins. I made the mistake of plugging in a v5 Raduino into a v6 board and aligning the pins to the left. magic smoke! ?Fortunately

I used 20 watts for a long time, and I have had a number of people refuse to talk to me, because my signal was too week, so more power is needed. I have written a booklet about solar cells, and maybe