Dummy Load placement?
2
How would I connect a 50 ohm dummy load in place of the LPF? Do I just connect it from the live end of the 12 turn inductor via a .01 capacitor? Are any other caps needed? Thanks, Jack
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File /ADX-S/V2/ADX-S V2 Kit Assembly Manual V1.2.pdf updated
#file-notice
The following files and folders have been updated in the Files area of the [email protected] group. /ADX-S/V2/ADX-S V2 Kit Assembly Manual V1.2.pdf By: Adam Rong <rongxh@...> Description: V2 Assembly Manual V1.2
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ADX-S V2!
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Guys, Please treat this message as the formal announcement to the worldwide. ADX-S V2 is now ready to take big volume orders. Actually I already shipped a big box to a builders' group in Europe earlier today. I live near a big park in Shanghai and I operate ADX-S a lot in the park. With the popularity of FT8CN and iFTx Apps, I realized that I must design for the mobile devices for field digital modes operation. That's why I have added features like TCXO, Audio Cable Adapter and Bluetooth Module. RX modifications are incorporated in the V2 hardware so you can easily toggle ATT while you are suffering from strong BCI. Band module automatic detection and TCXO addition make the setup and alignment much easier. In most of the occasions, you can save the frequency calibration and band setting. Hate toroids winding like me? Now you just need to wind 11 toroids instead of 21 to support 7 bands. Hate desoldering the Arduino Nano module? Low profile sockets are provided in the kit so you can easily replace if necessary, and meanwhile keep the total height to fit in the original plastic box. Photos? They look the same as the ADX-S. Only difference is the main board. The price is 89 USD including tracked air shipping. Please place order through the web store at: http://crkits.com The assembly manual, schematic, part list, source code, and firmware update tools are now available for download from: /g/crkits/files/ADX-S/V2 You are welcome to spread the word to your local group or club. Third party review videos will be available soon and I will let you know the link. Thanks, Adam
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File /ADX-S/V2/ADX-S V2 BOM 20240602.pdf updated
#file-notice
The following files and folders have been updated in the Files area of the [email protected] group. /ADX-S/V2/ADX-S V2 BOM 20240602.pdf By: Adam Rong <rongxh@...> Description: Part list. Added C25 for PCB 2024/05/05 or later.
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ADX-S mod for use with trusdx-audio
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I modified ADX-S for use with "trusdx-audio" which is used for (tr)uSDX digital mode. Both audio and CAT are sent and received via serial communication, so only one USB cable is needed to connect to the PC. The modifications to the motherboard consisted of adding an LM386 audio IC and two capacitors. The firmware needs to be changed, and "trusdx-audio" by threeme3 (PE1NNZ) needs to be installed on the PC. More information can be found at https://github.com/je1rav/ADX-S_trusdx-audio/ I am very sorry, but the document is written in Japanese. Please use a language translator like DeepL. JE1RAV
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Hi Adam
5
Hi Adam, I see by your email address suffix that you are associated with the University of Science and Technology of China. Thank You for bringing that level of expertise to our amateur radio hobby and Thanks for all the great products ! Jim WB4ILP
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BS170 simple tester
3
Guys, Made a simple tester for BS170 as you may find two different pin out in the market. We already know 2N7000 has reversed pin out with BS170. Thanks, Adam
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File /ADX-S/V2/ADX-S V2 Kit Assembly Manual V1.0.pdf updated
#file-notice
The following files and folders have been updated in the Files area of the [email protected] group. /ADX-S/V2/ADX-S V2 Kit Assembly Manual V1.0.pdf By: Adam Rong <rongxh@...> Description: V2 Assembly Manual V1.0
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May 1-5 holiday
2
Guys, I am spending holiday now. No shipping from May 1 to 5. Thanks, Adam
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Can I upgrade ADX-S V1 to V2?
Folks, Someone asked me this question. The answer is yes and no. If your V1 kit is not yet assembled, it is pretty easy to obtain an upgrade kit from CRKITS.COM and do the upgrade, as most of the V1 parts can be shared. You can keep 7 band filters with minor rework. If your V1 is already assembled, it is not easy to fully upgrade to V2. The most difficult part is the band auto detection. However, you still can upgrade TCXO, Audio Cable Adapter kit, and Bluetooth module if you wish. If you are interested, please let me know. If you have no idea about V1 and V2 yet, please visit: /g/crkits/files/ADX-S /g/crkits/files/ADX-S/V2 Thanks, Adam
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File /ADX-S/V2/ADX-S V2 Kit Assembly Manual V0.3.pdf updated
#file-notice
The following files and folders have been updated in the Files area of the [email protected] group. /ADX-S/V2/ADX-S V2 Kit Assembly Manual V0.3.pdf By: Adam Rong <rongxh@...> Description: V2 Assembly Manual V0.3 for early builders
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File /ADX-S/V2/ADX_S_V2.0.ino uploaded
#file-notice
The following files and folders have been uploaded to the Files area of the [email protected] group. /ADX-S/V2/ADX_S_V2.0.ino By: Adam Rong <rongxh@...> Description: Shipping firmware, TCXO support, with ATT default on. No frequency calibration is required. Band filter module auto detection, with protection if module is not properly inserted. Early customers, you can use UpdateFW.zip to update firmware directly.
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TCXOM is ready for order
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Guys, Why you will need this TCXO Module? No more noticeable drift, even WSPR at full RF output! The TCXO is supplied by KDS of Japan. The spec says 0.5ppm. I am offering two options. Please add 5 USD for shipping each order. PayPal to rongxh@... and leave your ship-to address. I have 30 pcs in stock at this moment. The green daughter board on the left, only available to this group, 4.9 USD each, 5 pcs max each order The reworked module on the right, will be made available to public, 9.9 USD each, 5 pcs max each order Thanks, Adam
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3D printed container/shell for PIXIE
13
HI am I loving my crkits pixie. I did the 40-20 mod and N9EGT reviewed it to make sure all was good. so it works. BUT I am curious if anyone has printed a container /shell for the pixie? tnx Niece
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ADX-S video from Germany
Guys, Not sure if you can understand Germany but it looks a great video about ADX-S, V1. I will keep 4 band V1 at 69 USD for a while at http://CRKITS.COM https://youtu.be/4YLMmQhBVfk?si=Esg5UU11AV27-1Z8 Thanks, Adam
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Just announced ADX-S V2 in China
Guys, See this post: https://mp.weixin./s/Ri-qgD1n9gKioqVHDRnf4A For more information, you can check out in Files ADX-S/V2 folder in this group. Thanks, Adam
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File /ADX-S/V2/ADX-S V2 Kit Assembly Manual V0.1.pdf uploaded
#file-notice
The following files and folders have been uploaded to the Files area of the [email protected] group. /ADX-S/V2/ADX-S V2 Kit Assembly Manual V0.1.pdf By: Adam Rong <rongxh@...> Description: V2 Assembly Manual V0.1 for preview.
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A Secret Folder
3
Guys, Check out the secret folder: /g/crkits/files/ADX-S/V2 If you are interested, please order a 7-band ADX-S on http://crkits.com and leave message V2. The optional Bluetooth Module will be included. Plan to ship on April 15. Thanks, Adam
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ADX-S No RF power above 18 MHz
6
Hello group, I've assembled the ADX-S kit from crkits.com. The construction manual is well written and gives excellent advice during the process. Everything worked the first time. RF output from my ADX-S between 7 MHz and 18 MHz is fine (2-3 W), but there is no output from 21 MHz and above. I've tried the following to rectify the power problem: Matched 3 x BS170 from at batch of 12. Matching parameter Vgs. No change. Swapped the 3 x BS170 with 3 x 2N7000 (they were matched from a batch of 10). No change Bypass C22 and remove D6 and R12. No change What to do now? 73 from OZ1BXM Lars Petersen
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Cell phone speaker element use
2
Most cell phone speakers sound pretty good for their size. Does anyone have any experience using a speaker out of a defunct cellphone for projects? ken -wa4mnt
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