Re: VK3YE just reviewed CPK-3 KT Receiver
Here you will find my experience :)
72 de Matt, DL1SER
Am 03.01.2024 um 09:54 schrieb Adam
Rong:
toggle quoted message
Show quoted text
Guys,
Please take a look at:
Thanks Peter for another good video.
|
VK3YE just reviewed CPK-3 KT Receiver
Guys,
Please take a look at:
Thanks Peter for another good video.
|
Re: Drift on a new ADX build
Hi Jason,
The drift is caused by heating by the finals. To reduce the drift:
Warm up for 2-3 minutes. Make sure the antenna is a good match. Lower the power supply voltage a bit. Lower band has lower drift. Drift does not always mean poor decoding. If you have access to a TCXO of 25MHz, try to modify the 5351 module.
toggle quoted message
Show quoted text
在 2024年1月3日，09:13，Jason Matonis via groups.io <kb2sdrjay@...> 写道：
?Hello, I built a CRKits ADX recently and I've noticed some serious frequency drift. Does anyone have any advice on how to cure this? 73 Jason KB2SDR 
|
Hello, I built a CRKits ADX recently and I've noticed some serious frequency drift. Does anyone have any advice on how to cure this? 73 Jason KB2SDR 
|
CPK-3 Radio for 27/28 MHz
Thanks to Adam for my test unit.?
If you're curious about 27-28 MHz reception I suggest the following:?
1. 390k + 33k in series to get close to the required 422k (though I used 27k and that was also OK). For testing remove the Fav/Var link and wire the 422k across from the centre pin to earth.??
2. Add 56k resistor in the earth connection of the tuning control for better bandspread. Required as keeping the whole 18-28 MHz range makes the tuning too touchy. This will give a coverage of approx 26.8 - 28.55 MHz
3. Use of an external signal generator or even Nano VNA as a BFO for SSB/CW reception
4. Use loose coupling to outside antenna to avoid overload from AM broadcasters etc.?
Tests OK on locally generated signals but haven't yet heard external signals. However there is an increase in noise with an external antenna loosely coupled so should be OK.?
Other refinements include use of a 10k 10 turn pot for the tuning and/or a fine tuning pot.?
|
Re: We are closed from now to Jan 5
Thanks Nick for the build report. The radio is best fit for the
external antenna.
Thanks,
Adam
On 2023/12/30 7:29, Nick Cookson wrote:
toggle quoted message
Show quoted text
Happy New Year, I finally had time to build the KT-CP3, had a
little trouble getting it powered up until I noticed that there
was a? little switch on the battery box :-) after that it worked
beautifully on Broadcast AM and FM using the included antenna, I
haven't tested it on the other bands yet but will give it a try
later on when I hook it up to an external one.
It was really fun to build and I look forward to building some
more of your kits.
73
Nick
VA7ILO
|
Re: We are closed from now to Jan 5
Happy New Year, I finally had time to build the KT-CP3, had a little trouble getting it powered up until I noticed that there was a? little switch on the battery box :-) after that it worked beautifully on Broadcast AM and FM using the included antenna, I haven't tested it on the other bands yet but will give it a try later on when I hook it up to an external one.
It was really fun to build and I look forward to building some more of your kits.
73
Nick
VA7ILO
|
Re: We are closed from now to Jan 5
Happy New Year Adam and get some rest ! Jim WB4ILP?
On Wed, Dec 27, 2023, 9:18 AM Adam Rong < rongxh@...> wrote: Guys,
Happy new year. The store is closed and will be reopened from Jan 6.
Thanks,
Adam
|
Re: We are closed from now to Jan 5
Happy New Year.
Steve
V73CP
Marshall Islands
toggle quoted message
Show quoted text
On Dec 28, 2023, at 2:17?AM, Adam Rong <rongxh@...> wrote:
Guys,
Happy new year. The store is closed and will be reopened from Jan 6.
Thanks,
Adam
|
Re: We are closed from now to Jan 5
Happy new year!
Costin, YO8RCD ?n mie., 27 dec. 2023 la 16:18, Adam Rong < rongxh@...> a scris:
Guys,
Happy new year. The store is closed and will be reopened from Jan 6.
Thanks,
Adam
|
We are closed from now to Jan 5
Guys,
Happy new year. The store is closed and will be reopened from Jan 6.
Thanks,
Adam
|
Re: Merry X'mas and Happy New Year
Hi Adam,
FM for local Stations is also good, clear and loud. You did a great Job :)
73 de Matt
|
Re: Merry X'mas and Happy New Year
I hope everyone had some nice crkits QRP toys under the tree this morning ! Merry Christmas All ! Jim WB4ILP?
On Sun, Dec 24, 2023, 4:22 AM Adam Rong < rongxh@...> wrote: Guys,
Merry X'mas and Happy New Year 2024! I hope you all have great time with
your family and friends.
In 2023, we have announced ADX-S, CPK-1 Pixie2023, CPK-2 DC40 and CPK-3
KT. I have enjoyed? designing and producing these kits. Hope you enjoy them.
Thanks,
Adam
Owner of CRKits.COM
|
Re: Merry X'mas and Happy New Year
Merry Christmas?and Happy New Year to all ham operators in this group?
During 2023 we have announced some very cool products such as the ADX range Mini , MI2 and just announced MI3 soon in my store too .?
73s Jason? 9H5BM
Always consider your responsibility towards a cleaner world, Go Green and recycle?
Visit my Tindie Page at
On Sun, 24 Dec 2023 at 10:22, Adam Rong < rongxh@...> wrote: Guys,
Merry X'mas and Happy New Year 2024! I hope you all have great time with
your family and friends.
In 2023, we have announced ADX-S, CPK-1 Pixie2023, CPK-2 DC40 and CPK-3
KT. I have enjoyed? designing and producing these kits. Hope you enjoy them.
Thanks,
Adam
Owner of CRKits.COM
|
Re: Merry X'mas and Happy New Year
Great! Thanks for your report. Have you tried FM audio quality?
toggle quoted message
Show quoted text
[Edited Message Follows]
Merry Xmas to all. Here is my result of the small receiver. Again
a great kit of Adam.?
72 de Matt, DL1SER
With my 30m lw Antenna could listen to radio new Zealand on 13.
755? MHz
Amazing result for such an simple rx.?
|
Re: Merry X'mas and Happy New Year
Merry Xmas to all. Here is my result of the small receiver. Again a great kit of Adam.?
72 de Matt, DL1SER
With my 30m lw Antenna could listen to radio new Zealand on 13. 755? MHz
Amazing result for such an simple rx.?
|
Re: Merry X'mas and Happy New Year
Adam and group,
? Merry Christmas and Happy and Healthy 2024?
to all. Can’t wait to see what you kits will offer, this next year for us to build and enjoy.?
JP
KA3BWP
|
Re: Merry X'mas and Happy New Year
Merry Christmas to you Adam and thank you for the greetings. I am working the Pixie2023 now and hope to build more in the coming year. Thank you again. Merry Christmas and Happy Holidays to you, your family and all of the group.
73
[Steve
V73CP
Marshall Islands
toggle quoted message
Show quoted text
On Dec 24, 2023, at 9:21?PM, Adam Rong <rongxh@...> wrote:
Guys,
Merry X'mas and Happy New Year 2024! I hope you all have great time with your family and friends.
In 2023, we have announced ADX-S, CPK-1 Pixie2023, CPK-2 DC40 and CPK-3 KT. I have enjoyed designing and producing these kits. Hope you enjoy them.
Thanks,
Adam
Owner of CRKits.COM
|
Re: Merry X'mas and Happy New Year
Thanks Adam.
Merry Christmas!
73!
Costin,
?n dum., 24 dec. 2023 la 11:22, Adam Rong < rongxh@...> a scris:
Guys,
Merry X'mas and Happy New Year 2024! I hope you all have great time with
your family and friends.
In 2023, we have announced ADX-S, CPK-1 Pixie2023, CPK-2 DC40 and CPK-3
KT. I have enjoyed? designing and producing these kits. Hope you enjoy them.
Thanks,
Adam
Owner of CRKits.COM
|
Re: Merry X'mas and Happy New Year
Adam, Happy Christmas to you too. Best for the new year. Looking forward to getting the receiver.?
Still having fun with the Pixie.?
On Sun, Dec 24, 2023 at 6:35?AM Nigel Young ZL1NAY < multilec@...> wrote: Happy Christmas and New Year to you and your family Adam. Santa just left NZ so he will be with you shortly.. ?
Nigel de ZL1NAY?
On Sun, 24 Dec 2023, 10:22 pm Adam Rong, < rongxh@...> wrote: Guys,
Merry X'mas and Happy New Year 2024! I hope you all have great time with
your family and friends.
In 2023, we have announced ADX-S, CPK-1 Pixie2023, CPK-2 DC40 and CPK-3
KT. I have enjoyed? designing and producing these kits. Hope you enjoy them.
Thanks,
Adam
Owner of CRKits.COM
|
Nick Cookson
JP McGinley KA3BWP
Wayne Steury