Date   
D4D 20m For sale

 

Built, tested, working with one of the IMD mods.

Built for 20m solid 1w+ out (was getting 1.2w but turned it down for 1w)

asking 45$ shipped conus (will ship over seas but must help with shipping)

73

 David

 N8DAH

contact off site gud on the zed.

Re: Tecsun 2P3 AM radio kit

matthew cook
 

I see the manual on the site but not the kit? Will it be available soon? Also some pictures would be cool.  Tks for the info...

Re: Tecsun 2P3 AM radio kit

Adam Rong
 

Matthew,

I offered the kit a few years ago but discontinued later. You can purchase from other channels now.

Thanks,
Adam

Re: Tecsun 2P3 AM radio kit

Adam Rong
 

John,

Indeed. Tecsun is the number 1 company in China to produce radio receivers. The kit quality is superb.

Thanks,
Adam

Re: Tecsun 2P3 AM radio kit

bleepingbeep
 

The kit may be purchased through Amazon.

Just FYI.

On Fri, Jun 14, 2019, 5:43 PM Adam Rong <rongxh@...> wrote:
John,

Indeed. Tecsun is the number 1 company in China to produce radio receivers. The kit quality is superb.

Thanks,
Adam

Field Day Equipment of D4D and Raspberry Pi

Adam Rong
 

Folks,

Hopefully you can view this video. Should you have any questions, please reply to this thread. Enjoy.
https://mp.weixin.qq.com/s/u7VGaNoBkQkuLb68LNZUFg

I hope I can put on YouTube in a few days with some editing.

Thanks,
Adam

Re: Field Day Equipment of D4D and Raspberry Pi

Adam Rong
 

Folks,

I just posted to YouTube with some editing:
https://youtu.be/la6BSmRS0k0

Thanks,
Adam

New file uploaded to crkits@groups.io

crkits@groups.io Notification <crkits+notification@...>
 

Hello,

This email message is a notification to let you know that a file has been uploaded to the Files area of the crkits@groups.io group.

File: D4D Kit Assembly Manual Rev.B.pdf

Uploaded By: Adam Rong

Description:
This version Rev.B is the update of the full manual in modifications and accessories sections. Also the photo quality is much better in this version. The Rev. A is now obsolete.

You can access this file at the URL:
https://groups.io/g/crkits/files/D4D%20Kit%20Documentations/D4D%20Kit%20Assembly%20Manual%20Rev.B.pdf

Cheers,
The Groups.io Team

Re: D4D 20m For sale

 

Still for sale 40$ shipped.

Re: D4D 20m For sale

 

Some pics

Re: D4D 20m For sale

Adam Rong
 

Well built.

Thanks,
Adam

在 2019年6月18日,上午11:56,N8DAH <Dherron@...> 写道:

Some pics
<20190617_213412.jpg>
<20190617_213320.jpg>

D4D: Quarterly Contest in 2019

Adam Rong
 

Folks,

After you've done your build, you are encouraged to put into use and report your distance of QSO with a screen snapshot of the software (WSJT-x or JTDX) in this thread. The longest distance QSO so far was made by BG7IKK with an Italian station and the distance is over 9000km with his 20m D4D, per his report in D4D WeChat group.

The contest will be quarterly based and the first place will be awarded a D4D kit. As this quarter ends soon, the first contest ends September 30. I wish to continue the test in Q4 and will send total 2 free kits this year. Wish you good luck.

Thanks,
Adam

Re: D4D: Quarterly Contest in 2019

John M
 

Adam, 

I received the kit, but life (as it does) has gotten in the way of my hobby. 

I will I’ll be building it soon, and will report back on the quality of the instructions, and my contacts with the kit.

73

John McGrath
KF6EFG

Re: D4D: Quarterly Contest in 2019

Adam Rong
 

Sounds good, John. You are one of the earliest buyers and I wish you good luck with your build and contest.

Thanks,
Adam

在 2019年6月20日,上午8:19,John M <kf6efg@...> 写道:

Adam, 

I received the kit, but life (as it does) has gotten in the way of my hobby. 

I will I’ll be building it soon, and will report back on the quality of the instructions, and my contacts with the kit.

73

John McGrath
KF6EFG

Re: D4D: Quarterly Contest in 2019

Adam Rong
 

Folks,

This is the 1st place so far:

Thanks,
Adam

在 2019年6月20日,上午8:06,Adam Rong via Groups.Io <rongxh@...> 写道:

Folks,

After you've done your build, you are encouraged to put into use and report your distance of QSO with a screen snapshot of the software (WSJT-x or JTDX) in this thread. The longest distance QSO so far was made by BG7IKK with an Italian station and the distance is over 9000km with his 20m D4D, per his report in D4D WeChat group.

The contest will be quarterly based and the first place will be awarded a D4D kit. As this quarter ends soon, the first contest ends September 30. I wish to continue the test in Q4 and will send total 2 free kits this year. Wish you good luck.

Thanks,
Adam

Z-match Antenna Tuner on Choc perfboard

Adam Rong
 

Folks,

This is my work this weekend.

https://mp.weixin.qq.com/s/ehBss8YBT0Y8z2WMg5oKpA


Thanks,
Adam

Re: Z-match Antenna Tuner on Choc perfboard

AA7US
 

Nice work Adam!

John
AA7US

BC breakthrough

Trent Trent
 

I just made my first and fuckin LAST crkits 20M FT8 transceiver,i've done most of it on the TX side and as I done the RX side which it is missing the needed 27p cap all I get is fuckin BC from ABC radio here in VK7 no matter what I do

Re: BC breakthrough

Bruce
 

Wow a little angry there.  Part of this hobby is fixing problems as they come up. A 27pf cap is a jelly bean part which can be purchased at any supply house. If you don't want to purchase one, harvest one from something else. It's a simple problem, quit your cussing and figure it out.

Re: BC breakthrough

Adam Rong
 

Trent,

BCI is the nature of a direct conversion receiver. The crystal and the 27p cap in the front end will help reduce it, however I did receive a BCI report from Beijing where the MW broadcast station is nearby, after selling over 100 kits. An additional BCI filter inserted between antenna and the D4D will be helpful. If you can confirm MW station is the major problem, you can consider making one following this page:
http://www.calculatoredge.com/electronics/ch%20pi%20high%20pass.htm

Thanks,
Adam

在 2019年6月25日,上午11:10,Trent Trent <vk7hrs@...> 写道:

I just made my first and fuckin LAST crkits 20M FT8 transceiver,i've done most of it on the TX side and as I done the RX side which it is missing the needed 27p cap all I get is fuckin BC from ABC radio here in VK7 no matter what I do