开云体育

Are you certain that your PTT button is working? You should hear relays click when you press it. If the PTT button is working, then a lack of signals out of the audio hat implies that the hat is not

Thanks Jack. The automated message from Amazon told me to keep the old book and they would send a new one :)...I wonder if they will send a new Old one. When the New new one arrives, I will write a

You gain some slow memory to store stuff in… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner –

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