¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
Re: DSB transceiver for Digital mode
Folks, I have placed order for PCB two days ago. The first batch is 350 pcs. I have finalized the parts value and will place order for parts tomorrow. The RF output is 1-watt at 12V for 14.074MHz, and
By Adam Rong · #2554 ·
Re: FT8 DSB VOX
Adam, I understand and thanks for the reply 72 73 John N3AAZ
By John Kirby <n3aaz_qrp_1@...> · #2553 ·
Re: FT8 DSB VOX
John, No. I will keep the schematic paper based only for customers for a period of time. Thanks, Adam
By Adam Rong · #2552 ·
Re: DSB transceiver for Digital mode
Jim, I would leave it for customers¡¯ modification. We have added a crystal in the front end as the filter. We will have to switch both. Thanks, Adam
By Adam Rong · #2551 ·
Re: FT8 DSB VOX
Adam, Sounds good ! Will you release the schematic even if preliminary ? 72 73 John N3AAZ
By John Kirby <n3aaz_qrp_1@...> · #2550 ·
Re: DSB transceiver for Digital mode
What about having both crystals and then adding a switch to go between the FT8 and JS8 frequencies?
By Jim · #2549 ·
Re: DSB transceiver for Digital mode
Technically it is possible. Just change the crystal and I might be able to customize it. However, we will need to consider the unwanted LSB signal will go into FT8 spectrum and it might cause
By Adam Rong · #2548 ·
Re: FT8 DSB VOX
Good job on the modification. It saves $ and time. I sent 4 kits to domestic hams based on the first version PCB, and 3 of them completed the building, although they did have a few questions and
By Adam Rong · #2547 ·
Re: FT8 DSB VOX
ps ... Q2 has no FT8 function (yet) John N3AAZ
Re: FT8 DSB VOX
Adam, My RockMite mod for FT8 DSB (NOVOX (yet hi hi)) John N3AAZ
By John Kirby <n3aaz_qrp_1@...> · #2545 ·
Re: DSB transceiver for Digital mode
Would it be possible to make this rig operate on the JS8CALL frequency of 7.078 instead?
By Jim · #2544 ·
Re: FT8 DSB VOX
John, Looks good. How did you modify your RockMite 40 to transmit DSB? My technique is just to live with it as the signal is QRPp level, hihi. Thanks, Adam
By Adam Rong · #2543 ·
Re: FT8 DSB VOX
Adam, Modified RockMite 40 (7030), no VOX yet, for simplex FT8 DSB to shack FT991 :>) Anxious waiting to learn your LSB suppression technique! TNX AGN 72 73 John N3AAZ
By John Kirby <n3aaz_qrp_1@...> · #2542 ·
Re: Simple FT8 DSB rig
Ron, I built a SSB FT8 radio based on my KN-Q7A PCB and it works okay. If you check out my previous post, I even added a VOX circuit for this rig. However this SSB concept is very common, and I am
By Adam Rong · #2541 ·
Re: DSB transceiver for Digital mode
Folks, Let¡¯s use this thread to update the status. The test is done. I have tested both 7074 and 14074 radios. I need to update PCB to include a minor fix. I will accept order and start to ship
By Adam Rong · #2540 ·
FT8 DSB VOX
Adam, ?Love your FT8 DSB VOX concept Can't wait for a kit 72 73 John N3AAZ FM19
By John Kirby <n3aaz_qrp_1@...> · #2539 ·
Re: EOL: CRK-10A CW Transceiver Kit
Thanks Ian. Check out HT-1A and you will love it too. -- Thanks, Adam Rong
By Adam Rong · #2538 ·
Re: EOL: CRK-10A CW Transceiver Kit
I fully appreciate the reasoning and economics of this but it will still be missed.... it was a well loved classic.... keep up the good work & many thanks ian.... gm0sim
By gm0sim@... · #2537 ·
Re: Simple FT8 DSB rig
Adam, What do you think of going SSB instead of DSB at least for the transmitter?? I believe this would just involve the addition of a simple 3 pole crystal filter and an additional SA612 mixer
By Ron Stone · #2536 ·
EOL: CRK-10A CW Transceiver Kit
Folks, This is to announce the EOL for CRK-10A CW Transceiver Kit. You might find some left at my distributors but I have zero in stock now. I will focus on HT-1A dual band CW transceiver, R3500D ARDF
By Adam Rong · #2535 ·