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Re: What is CPK-3?
No if you pay as friend or family. Some nice guys wished to save my PayPal tax. I appreciate it but I need your address.
By Adam Rong · #4596 ·
Re: What is CPK-3?
Adam, I thought paypal showed our address when we paid. JP KA3BWP
By JP McGinley KA3BWP · #4595 ·
Re: What is CPK-3?
Guys, So far I have received orders of total 4 beta kits. Please don't forget to leave your address. Thanks, Adam
By Adam Rong · #4594 ·
Re: What is CPK-3?
Tested OK. Modified a bit and ordered another batch PCB. You can PayPal 9.9 USD each to rongxh@... for the beta kits now, and I plan to ship by tracked air shipping from Dec. 4. Thanks, Adam
By Adam Rong · #4593 ·
Re: What is CPK-3?
a more modern version of TA/CD2003 am/fm radio IC. For SSB RX, SI4732/SI4735 is a much better option imho. -- 73 Barb WB2CBA
By Barb WB2CBA · #4592 ·
Re: What is CPK-3?
It is a direct conversion receiver, Jim, so the short answer is, no. You could inject a signal close to it's dial frequency into the AM RF input, but you'd have to chase yourself up and down the
By John Kirk · #4591 ·
Re: What is CPK-3?
Yep, that is the one! Many thanks John, VK4Tj
By John Kirk · #4590 ·
Re: What is CPK-3?
John, I think this is it. Working on my phone so please verify. Regards, Nathan Sent from Proton Mail mobile
By AC1AS · #4589 ·
Re: What is CPK-3?
Have you got a link to an English language data sheet on the chip, Adam? My usual sources are coming up dry.... Thanks John
By John Kirk · #4588 ·
Re: What is CPK-3?
Could be a great kid kit.. does it do SSB? Steve Pardon the brevity, sent from a mobile device. So there.
By steve · #4587 ·
Re: What is CPK-3?
I haven't tried myself. I suppose it is not easy as the IF is not exposed to us.
By Adam Rong · #4586 ·
Re: What is CPK-3?
Hey Adam, Cool ! I'll take a couple. Can a BFO be added for CW/SSB? Jim WB4ILP
By Jim WB4ILP · #4585 ·
Re: What is CPK-3?
Adam, Looks nice. Hopefully they will be available for us so we can send you our money. JP KA3BWP
By JP McGinley KA3BWP · #4584 ·
What is CPK-3?
Guys, It is a FM/MW/SW radio receiver based on the KT-0936M(B9) radio-on-chip. Stay tuned as I am about to receive the PCB tomorrow. And it is the prototype I built on my Choc board. I'd say the
By Adam Rong · #4583 ·
Re: ADX-S+ESP32(Bluetooth Audio)
Dear Mahesh, Thanks for the test. ?I have tested on FT8CN and it worked. 73 Hitoshi, JE1RAV
By Hitoshi, JE1RAV · #4582 ·
Re: ADX-S+ESP32(Bluetooth Audio)
Hi Hitoshi, Thanks for sharing your work. I have successfully tested FT8.reception with my homebrew FT8 TRX. I fed audio to ESP32 and wsjtx decoded signals using BT/HFP on W10, but the Pi-4 failed to
By vu2iia · #4581 ·
Re: PIXIE2023: One of the cleanest output Pixie?
You can try adding 120pF or 100pF cap in parallel to 1uH inductor in the LPF. The performance is not promised as it also relates to the bias but it should improve. Thanks, Adam
By Adam Rong · #4580 ·
Re: PIXIE2023: One of the cleanest output Pixie?
Hey Adam, Congrats ! That's quite a bit better ! Great design but I haven't had time to build mine. Jim
By Jim WB4ILP · #4579 ·
Re: PIXIE2023: One of the cleanest output Pixie?
Thanks Adam! I understand that the modification consists in adding a capacitor. What is the value and position? 73! Costin, YO8RCD ?n lun., 13 nov. 2023 la 15:13, Adam Rong <rongxh@...> a
By Costin R · #4578 ·
Re: PIXIE2023: One of the cleanest output Pixie?
Jim, In short, regular Chinese Pixie -20dBc, my Pixie2023 -46dBc per test result. Thanks, Adam
By Adam Rong · #4577 ·