CTR2-Micro is an exciting new addition to the CTR2 family. Built on the same code base as CTR2-Mini+ it has more features than the CTR2-Mini at a extremely low price point. The Micro is available as a complete kit of parts with an enclosure to build your own (great for a club build project!), or as an assembled and tested unit.
IN STOCK AND AVAILABLE NOW!
December 3, 2023
If you’ve recently tried to order and received an error, try again. WordPress corrupted the order form a few days ago. It should be fixed now. If you have any problems with ordering, contact me.
New orders received by Dec. 15 should arrive before Christmas. This applies for US orders only, all bets are off for exports 🙂
I’ve had two brand new ESP32-C3 processors that refused to connect to the PC out of the box. To insure this doesn’t happen to you I am now pre-loading the current version of firmware on all processors shipped in kits starting December 1, 2023. You’ll still want to download the EspressIF Flash Download Tool and check here for more recent firmware when you get your kit built.
You will not be charged until I’m ready to ship your order. Orders are typically shipped the day of payment.
If your thinking of doing a club build with the Micro kit, contact me. I can do a Zoom meeting with your club to show what it does.
These are introductory prices and may be adjusted in the future as needed. If you have any questions, contact me.
| CTR2-MICRO | DESCRIPTION | PRICE (USD) |
 CTR2-Micro-COMPETE-KIT | The complete kit includes everything you need to build one CTR2-Micro. Select Option 1A or 1B, and 2A or 2B below. You will need a USB-C cable to connect it to your PC. Radio I/O cables can be ordered below. | $30.00 |
 CTR2-Micro-ASSEMBLED-UNIT | Assembled units come ready to use and are tested. Select Option 1A or 1B, and 2A or 2B below. You will need a USB-C cable to connect it to your PC. Radio I/O cables can be ordered below. | $47.00 |
CTR2-Micro-OPTION1A | Option 1A specifies a DETENT encoder to be supplied with the units ordered above. | N/C |
CTR2-Micro-OPTION1B | Option 1B specifies a NO-DETENT (smooth) encoder to be supplied with the units ordered above. | N/C |
| CTR2-Micro-OPTION2A | Option 2A specifies an internal header with header jumpers to be supplied for CAT polarity configuration. To change CAT polarity you will need open the unit. | N/C |
| CTR2-Micro-OPTION2B | Option 2B supplies an 8-position DIP Switch for CAT polarity configuration that is accessible without opening the unit. Order this option if you have more that one radio CAT format you want to use the unit with. | $3.00 |
RADIO INTERFACE CABLES | DESCRIPTION | PRICE (USD) |
 FT8X7DIN8 | 6 foot cable connects the Micro’s CAT I/O to the the Yaesu FT817, FT857, or FT897 CAT port using an 8-pin Mini-DIN connector. Built with a stereo 3.5mm male on one end and an 8-pin Mini-DIN on the other. | $16.00 |
 PTTKEY6 | 6 foot cable with a 3.5mm (1/8″) stereo plug that splits the Micro’s PTT/Key Outputs into two separate 3.5mm plugs. An inline 3.5mm jack is provided for PTT that must be wired to your radio’s auxiliary connector. | $16.00 |
 PTTKEYDIN8 | 6 foot cable with a 3.5mm stereo plug that splits the PTT/Key Output on the Micro to an 8-pin Mini-DIN plug for PTT and a 3.5mm stereo plug that connects to the Key input on the radio. This cable fits the Xiegu G90 or X5105. | $17.00 |
 PTTKEYFLEX6 | 6′ splitter cable with a 3.5mm stereo male that connects the PTT/Key jack on the Micro to an RCA connector on the Flex for PTT and a 3.5mm stereo plug to connect to the Key input on the radio. | $16.00 |
 RS232FF6 | This is a 6 foot cable for radios with an RS232 DB9-Male CAT port such as the Yaesu FTdx101. It includes a 3.5mm male plug that connects the CAT I/O port on the Micro to the DB9-Male on the radio. It includes a female/female null modem adapter to roll the TD and RD pins. NOTE: A jumper from pin 7 to 8 on the DB9 can be added for hardware handshaking on Kenwood radios that require it. | $16.00 |
RS232FM6 | 6 foot cable for the Icom PCR1000 receiver and other radios that use a DB9-female RS232 CAT connector. It includes a 3.5mm male plug that connects the CAT I/O port on the Micro to the DB9-Female on the radio. It includes a male/female null modem adapter to roll the TD and RD pins. | $16.00 |
 STEREOMM6 | 6 foot cable with a 3.5mm (1/8″) stereo plug on each end. Used to connect the Micro’s CAT or Key/PTT Out to various radios that also use the 3.5mm stereo connector for these signals. | $6.50 |