Gang, This product will be released in about a month. It is designed by the designer of HB-1B and will be sold by crkits and distributors only. Mostly in assembled form, but I will offer a few kits wi

Gang, I have an over time job and I travel a lot for business. It explains why I ship less often and the average waiting time is long recently. I made a bit change. I will store a few kits in the ware

Gang, For the assembled R3500D 80-meter ARDF receiver, you buy from http://crkits.com and you get free shipping in May. That is to say, you get one receiver at 39 USD including air shipping. The R3500

Hello Adam ! Long time since i wrote you an email and i hope Everything is fine with you. Now my question.Whats new in the kit front? Do you have any interesting Kits these Days ?I have not built any

Hi I am clearing a SK shack on behalf of the XYL. Here are the equipment remaining after some hamfests.... Icom 7700,ICOM IC 7800 ANAN-100D SDR Yaesu FTDX 5000 Flex 6500,Flex 6300 Kenwood TS-2000LE, K

Gang, This is my post on qrp-tech. Please comment. A few days ago, an American ham wrote to me asking for donation of my single band SSB transceiver fully assembled. He wrote, I am interested in your

Any member here have the later HB1B rig? Want to know what the new chip does and can I buy the chip? Thanks Bob

Bob AF2DX On Jan 26, 2018 10:29 AM, "Adam Rong rongxh@... [CHINA_QRP]" <CHINA_QRP@...> wrote: Guys, The following price will be effective from today. Web site will be updated this weekend. My Chinese

Guys, The following price will be effective from today. Web site will be updated this weekend. My Chinese New Year holiday starts from Feb 10. Before Chinese New Year, the shipment windows are Jan 29

I have added a summary of my experiments with the KN-Q7A and CS-Series radio using the Sandwich VFO. Thought you might enjoy the read. This discusses the latest modification to the Arduino Sketch to e

Gang, Recently a famous QRPer in United States wrote to me looking for a good source of NP0 or C0G monolithic capacitors for VFO, and my recommendation is the light green capacitors that I have been u

Gang, Job is done. I get full 40-meter coverage without birdie on 7.023 MHz because my digital VFO outputs operating frequency plus BFO frequency. The bandwidth of the crystal filter seems a bit wide

Hi all, I finally got the bias voltage right ( had a shorted 3357 ), now , not having a rf meter for 20 meters, I hung a scope on the antenna. I could only peak for 6 volts p-p, all the 530 voltages a

Hi Again, I was aligning the tx section of my rig and don't have a watt meter for 20 meters so I put a scope probe on the antenna, the envelope measured 6 volts p-p. Is that about right or do i really

Gang, As the year end comes, we will provide 8% off promotion for CS-series kit only from now on to the end of this year. Place online order through: http://crkits.com Thanks, Adam

I am announcing the availability of three new kits which when added to the Sandwich will give Frequency Readout. If you have any questions, please let me know. An upgrade to the Sandwich code is requi

Adam, The CS-Series is a great platform for learning and experimenting by changing a few components at a time just to see what effect it has. So I'm curious why 8.4672 MHz was chosen as the IF in the

Hi All, Finally getting around to finishing my knq7, but ran into a problem. The idle current is around 40 ma but when PTT is keyed it jumps up to around 1400ma at the low end. Any ideas on where to s

Gang, I think everyone should be informed of this effort by JH3BTK. He did modification for JT-65 and FT-8 before and now he is supporting CAT for CS-series. http://www.geocities.jp/mx6s/JH3BTK2.html

Gang, https://youtu.be/8ZXhJMG3lvQ Finally I got the OMRON switch and completed the Pixie 2 build. I hope you will love it. As a bonus, I introduced NE602+LM386 receiver build. Thanks, Adam