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CS-xxV SSB Transceiver Kit with Speaker Microphone Combo - New panels from August 2020

Unit Price: 80 USD. EMS Shipping and Handling: 22 USD. You can choose from CS-40V, CS-40V (US), and CS-15V. If you can wait and need cheaper shipping, let us know.

 

 

We introduced the KN-Q7A SSB transceiver kit in October 2011, and it was a big success. Thousands of kits were sold in the past years, then it was discontinued due to parts shortage. Now, we bring it back with a few modifications. We also newly added 15-meter called CS-15V. Here, V in CS-xxV is for VXO. There is no DDS, MCU, or anything else digital. All analog, all traditional.

The IF crystal filter pass band flatness is improved with a better impedance matching. Thus, the receiving and transmitting audio sounds noticeably better. And the insertion loss of the filter is greatly improved as well.

The MC1350 replacement is a tiny module of a dual gate FET.  The gain is lower, the gain control is counterclockwise [of course, you can modify it back], but it is loud enough for the speaker microphone if you are using a full sized antenna.

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[The previous generation KN-Q7A was widely introduced by CQ Amateur Radio magazine in US, CQ Ham Radio magazine in Japan, RadCom magazine in UK, Amateur Radio magazine in Australia, and some other brief introductions in other countries since 2012.

KN-Q7A eHam product review average rating 4.8/5.0

KN-Q7A manual for PCB V2.2, including schematics and partlist for 80/75/40/20m ]

 

D4D DSB Transceiver Kit for Digital Mode

Unit Price: 35 USD. EMS Shipping and Handling: 22 USD. All parts and case are included. You can choose from one from 3573, 7074 or 14074. If you can wait and need cheaper shipping, let us know.

 

D4D stands for DSB transceiver for Digital mode. It is a very simple and low cost crystal controlled 1-watt transceiver designed specially for FT8, FT4, or JS8CALL and etc. VOX is included, so you just need audio cables to work with your computer or Raspberry Pi. Simple and creative heater is included to improve frequency stability.

Dimensions: 103mm(L) x 66mm(W) x 27mm(H), not including protruding parts
Weight: about 165 grams

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eHam product review average rating 5.0/5.0

 

R3500D ARDF Receiver (Assembled)

Unit Price: 35 USD. EMS Shipping and Handling: 22 USD. If you can wait and need cheaper shipping, let us know.

 

R3500D is the upgraded version of the well known PJ-80 80m direction finding direct conversion receiver kit. 3500~3600 kHz coverage. Color is random.

R3500D English manual including part list, modification instruction to 40-meter band and photo of the PCB assembly

Note that the LO frequency is at half of the working frequency. It is by design, no worries.

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