开云体育

Thanks Mircea, The price will be competitive of course. I hope more people can enjoy this tiny radio for portable/mobile operation. I will return home tomorrow after a 10-day trip to restart the test.

Adam - An excellent idea for this mini transceiver. If the price will be competitive, it will be a great success. I do not have crystals for those frequencies, otherwise I try a replica.

Sounds like a good idea. Here we have a ham already tested this system okay. Thanks, Adam

Adam, Thanks for your response.? I was thinking of combining it with a Raspberry PI and batteries in a single enclosure for portable use, and use my phone for the UI. 73, Ron (KA3J)

Ron, The 20-meter version will be announced later. Why a version without an enclosure? Do you plan to integrate to a big system? Thanks, Adam

May I call it D4D - DSB transceiver for Digital mode? This 1-watt DSB transceiver will provide lots of fun of building and operating. The VOX circuit will provide even more convenience to the

Adam, Very good.? I was under the impression that you were just doing a 40 Meter version of this rig.? Sounds like you're planning to do a 20 Meter version as well.? Any chance, you'll sell a

Ron, A kit is being designed based on this circuit. I will announce in a month or two. You will likely see the prototype in digital mode forum in Hamvention this May. Thanks, Adam

Adam - Would love to see the schematic for this baby and your other 20 meter version too.? Thanks! Ron (KA3J)

Great idea Adam! I'm looking forward to it. 73, John AA7US

Folks, Thanks for encouragement from many hams. I have decided to make it a kit to include more features including: 1. VOX control 2. Better spectrum purity 3. Better frequency stability 4. A metal

Folks, JL1KRA made a dedicated page for the simple receiver I introduced earlier. The design is quite unique but the performance is acceptable regarding selectivity and sensitivity. You can give it a

https://www.youtube.com/watch?v=kw7xRyf8LDY -- Thanks, Adam Rong

Lots of fun building and operating this simple FT8 rig by manually switching RX/TX. And here is the schematic. Thanks, Adam

https://the-tech-examiner.com/2019/02/11/ht-1a-dual-band-cw-qrp-transceiver/ Thanks, Adam

I built it on my perf board. I made the first QSO days ago with a ham 1168 miles away. It is a 20m DSB 1-watt transceiver with VOX.

Folks, I managed the first QSO with this 1-watt DSB FT8 rig on 20m with a ham about 1168 miles away. The short term frequency stability is still an area for improvement due to final stage heating the

Gang, I followed VK3YE micro 40 and added a VOX circuit and here is the result: Thanks, Adam

Gang, The VOX circuit is very simple one like this: https://www.electroschematics.com/354/vox-circuit-schematic/ I changed 47k to 10k to shorten the hold time. Here is how I modified my radio

Very nicely done Adam! ?? There's nothing more satisfying than completing QSO's using a transceiver you built. ?Especially so for one built from scratch. 73, John AA7US