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But do you gain anything by populating 1 or 2 of the 8Mb SPI memory chips on the Teensy?? Or do you loose? some functionality by doing that? Just curious. Thanks, Duane - K5CA

Yeah, I did too, but twice received the wrong book. I have redone the submission from scratch and I should be hearing within 72 hours. It will have a new ISBN number, which means we lose all of the

Put scope on the IQ out pins and I don't detect and signals when in TX IQ calibrate Tim

I just received the wrong one, the old one that I already have :( Strange, as I waited until the purchase page had the new cover with the black T-41. John K1JO

Yes they are. Step through the circuit starting at the audio hat. Do you see the 750 Hz audio tone on the I and Q outputs of the audio hat? Then, walk through the transmit chain on the RF board and

Is the 750hz and 2 tone frequencies generated in Audio Hat? Still mucking around trying figure out why no carrier in SSB mode. Tim

I will check back later this week, and if it looks correct I will order, and of course you will get a review. -- 73 Greg KF5N

Oddly, two people have written that they received the right book. Even harder to figure out now. I just went through the entire process again and updated everything, including the ad narrative (which

Glad to hear it...thanks! Jack, W8TEE

I did, finally, receive a copy of the NEW book.? Received it last week.? I meant to post up about it but had a senior moment and forgot too.? Amazon even told me to keep the old copy. Duane - K5CA

I'll find out soon. Mine new version is supposed to arrive today.

Amazon needs to be hammered on again.? They are not getting it done correctly. -- 73 Greg KF5N

I've been working on a system to accurately evaluate HF linear power amplifiers.? It took quite a while to figure out how to get the system working. Here's the first tangible results in the form of a

Nor should you. But the problem is that the ad shows the new cover: and I can't figure out how that happened since we updated it April 4th. After 2.5 hours on the phone with Amazon and Kindle Direct,

I want a new copy, but I'm not going to order one from a page which says April 18 2024. -- 73 Greg KF5N

ALL: Has anyone received a copy of the new T41 book? The new version supposedly became available after April 4th and has a black T41 on the cover and Appendix C on Calibration has been expanded to a

Display is not showing anything. will dig deeper. TNX Tim Tim O'Rourke W4YN@... Low Power Amateur Radio Rocks Member of Flying Pigs,ARCI,GQRP,RSGB,ARRL Life Member R/C Pilot (sort of) NRA Life

If you take the Mic wires off the pins on the hat and just place your finger on Hat PIN 4 and key the radio, you will see a 60 cycle pattern in the display and hear that in the transmitted signal. If

No sir

Thanks Bill Don't worry about it.? I'll find some boards somewhere.? It's only the V10/11 QSE and maybe QSD boards that I would use. Good luck with your sales. 73 Harry GM3RVL