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Sounds like we got started about the same way. My first transmitter was HB...two tubes, 15W. The receiver was a used S40B that I got for $25 and my antenna was a 300Ω twin-lead dipole cut for 40M. I

Jack, I couldn't help but smile when I read that you got your ARRL Life Membership in 1972, I did too. I built my novice transmitter in high school electronics shop from a QST article ... I still

Thanks Tim, I'll try to recreate and fix this bug.

Here is sequence, fairly accurate age you know! Previous session I finished TX IQ cal on 40, 20 and 75M bands. I planned on making first Q with this build today. Fired it up, all good, set power out

Oliver, thanks for the reply. I thought I had traced out all of the pins on the 23017, but I may have missed something. I'll check things again. About the AD7991, "BIT" has been showing an Ad7991 at

OOPS… was reading linearly and missed this response. Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton,

Then we are fine. Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand

The LPF control cable connects to the “BANDS” connector on the MAIN board, J12…. and to the “BANDS” connector on the LPF Control board J21. It should be on on WIRE2 at hex address x25 which

Can you describe how you found this bug in more detail? i.e., what specific buttons you pressed and in what order. If your radio seems to be in an unrecoverable state, you may need to reset the flash.

Soldering JP2 while leaving JP1 and JP3 open makes the address bits 101 (they are high by default and soldering the junction pulls them to ground). This should correspond to the address 0x25, as you

My point was that I’m in that “Give Back” part of my life to support this hobby, and I talk about it to inspire other to do the same.? But evidently that struck a sour chord with you.. so

Finished building the LPF Control board, no detectable shorts or opens and no smoke escaped. The board is configured for I2C addressing and the address jumpers are set for address "25"(Open, Short,

Hi Justin. Thank you for the information.? I'll move forward with the build. Duane - K5CA

Hi Steve: You're right...and in some cases, those interests change over time. I ran 500W from about 1972 to 1990's and then went to a "standard" 100W transceiver. When I retired in 2009, I discovered

The point missed here is that our hobby survives by bringing new people into the hobby and helping them to flourish in whatever avenue keeps them interested (building, operating, POTA, Digital Modes,

Hey Duane, The 0R resistors are correct. When I sent my boards to fabrication 3.3K resistors were in the schematic but this was changed shortly afterward. There was some discussion in this group that

Will do. Thanks. Duane - K5CA

All One of the great things about this hobby of amateur radio is that is has so many different aspects that interest just about anyone. I became interested in amateur radio twenty years ago. I ended

Like I said, you are a big contester and, while much more modest equipment, I enjoy contesting, too. I'm just not very good at it. I've participated in Field Day, the Sweepstakes, and several QRP

Completed RX and TX IQ cal all working fine. I went into menu to change display options, as soon as menu came up it returned went back to spectrum display which was only partial display. Now it