4S QRP T41 EP SDR Experiment Platform
20 W SSB/CW SDR transceiver
80 / 40 / 20 / 15 / 10 meter
Available in the webshop
De 4S QRP T41 is an experiment platform for SDR.
De base is a Teensy 4.1 ( That's where T41 comes from ) 32 bit microcontroller which is programmed in the Arduino 2.0.x IDE.
The Sketch for V040 and later can be found at the group website of Jack and Al https://groups.io/g/SoftwareControlledHamRadio.
Check for updates, the software is constantly improved !
Becoming a member of the group involves only one mouse click, no acknowledge needed.
4S QRP also has its own groups.io page at https://4sqrp.groups.io/g/T41 Same here for becoming a member.
Both groups provide information and are worthwhile to visit regularly.
The software is still developing. Make sure you find the latest version by reading through the groups above.
There might come a updated github page for the software.
If you have programming skills the software can be altered to your wishes/preferences.
This is NOT a simple kit. Some experience with wiring together multiple PCBs and installing the Arduino IDE for Teensy and the libraries and code for the T41 are required BUT with reading/asking the Group.io pages and reading "how to's" on installing Arduino IDE and libraries it should possible for anyone to have a working transceiver.
The boards come populated with the SMD parts.
The developers Al Peter AC8GY en Jack Purdum W8TEE have written a book on this SDR radio development.
The book can be found on
Amazon
or purchased with your kit.
A Teensy 4.1 with PJRC Audio hat 4.0 and LCD display are NOT included and must be provided by you.
The Teensy 4.1 with Audio Hat and headers can be supplied by HAM Radio Land ( see webshop ).
The very nice, black with white print enclosure made of PCB material is included in the kit !
Delivery is started in November 2023 with a series of 125 pieces. HAM Radio Land received 10 kits which sold withtin a week.
There are still some available at 4S QRP, want to reserve one ? : send us an email.....
The fist series will be sold out begin December.... HAM Radio Land hopes to get another 2 or 3 kits soon.
All prices include 21% VAT.
When ordered only shipping is added.
Outside EU ? send us an email for a pro-forma invoice without tax
The builders manual can be found above ( button below the T41 photo ).
Disclaimer : HAM Radio Land only sells the kit as is but if parts are missing they will be supplied separately. Issues with software are at risk of buyer.
No warranty the kit will work. There is enough help available on internet to solve hardware/software issues. If you expect a hardware failure HAM Radio Land can help to find and solve the problem at a fee. Shipping costs to and from HAM Radio Land are for the customer.