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Ok… That does explain the ground issue for PTT too… it uses the same ground. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch –

No it's there I missed it! 1. Make a cable to connect the “R_OUT” (or Q) and “L_OUT” (or I) and Ground (GND) on the Teensy Audio Hat pins with the 90-degree pins next to the Teensy board (pins

Looks like we need more language around that in the assembly manual… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC

I now have full output in TX IQ calibrate Yea How ever nothing showing in Plot Almost there! Tim

Yep, Got the right version with chapter 20. If people look at the free sample on the amazon listing it shows the contents and chapter 20 is listed. Clarence,NT7V

It is… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand Piton – J68HZ

Ahaaa Tim Sent using myEarthLink

I’m not sure if this part was clear… but you should have jumper wires that go from the 90 degree pins on the MAIN board next to the processor up to the appropriate pins on the hat per the

Hi Jack, I'm looking at the V12 schematic, and the external audio amp is driven by the PCM5102 DAC IC.? It looks like the same audio path as V10/V11. -- 73 Greg KF5N

There has to be a 3 wire cable from the Audio Adapter LGR going down to the Main board. Looks like the matching connector on the V12 Main board is J22. -- 73 Greg KF5N

V12 still relies on an external audio amp. Jack, W8TEE

Thanks for the purchase...You did get the right version, though? I resubmitted the entire book yesterday (after spending 2.5 hours talking with Amazon/Kindle), which is not good because we lose the

I have been hooking up to the pins Iq out on main board, the ones we installed with rt angle pins. I will also try this connector. Tim

Ordered the new book on Monday this week and received it yesterday.? Amazon does still sohow the previous version for sale as well. On first review the new updates are helpful. Clarence, NT7V

It's not real clear where to connect the I and Q outputs (line out left and right) on the Audio Adapter.? Referring to the back side of the Audio adapter: Where it says LINE OUT To the right this are

This bit right here…. Make sire it works before moving on… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton,

Tim, Oliver is correct… if the audio hat + software is working… you should see a audio-like waveform on J17… which is the generated I/Q output to the RF board. You can trace that back to PINS 1

I have 3 ways of measuring power; Direct LPF output on Tek Scope, RMS voltage out of Pearson current monitor, an HP363 Taidacent power meter.? I get 9.7 +/-0.9 watts out at 7.2MHz.? My DC power in

Thanks, John! Jack, W8TEE

PTT working, it goes into TX and amps increase, relays click. I2C checked out on all but BPF which I am using 3rd party BCD to control. Audio hat works fine for RX. Tim