Due to the general disarray of the supply chain I am unable to order relays for the Antenna Switch Controller (ASC) boards. Relays for this board are back ordered until March 2022. I have parts for the other boards. I’ll update the order page when the new relays come in.


CTR2 is available as a ready to deploy system or as individual circuit boards that you can assemble yourself. Complete systems contain everything you need to add CTR2 to your station. Simply order the package you want and one Radio I/O module for each radio in your shack. You will need to provide a 12 VDC power source capable of at least 1 amp with a 2.1mm x 5.5mm coaxial power plug, CAT5 cables long enough to connect the Radio I/O modules to the RJ45 Switch (if used), and connectors to interface the Radio I/O modules to each of your radios. This post contains detailed radio interface diagrams and connector specifications.

If you decide to order blank PCBs you will need to purchase the additional components listed on the bill-of-material spreadsheet to complete each board.

COMPLETE SYSTEMS

All systems come completely assembled and programmed. System packages are supplied with acrylic top and bottom cover plates for the stack as shown in each photo. The cover plates can be ordered separately if you are building your own system from individual boards.

The System prices below DO NOT include a user interface. You can order a complete Nextion Display console separately (UI #1 or UI #2) or you can use Node-RED as a user interface.

SystemCapabilitiesPackage Cost
System #1Single radio control. This system includes an HMI and
Auxiliary Option 1 board. It is capable of controlling
a single radio.

Fully assembled System #1 package
$190.00
System #2Single radio control with Antenna Switch Controller (ASC).
This package includes an HMI, an Auxiliary Option 1, and a
4-port Antenna Switch Controller board. Increase the number
of antenna ports to 8 with the 8-port Antenna Switch Controller.
This package is ideal for a station with a single radio and multiple
antennas.
This package requires an electrically operated remote antenna
switch for operation.


Fully assembled System #2 package
Unavailable due to
parts availability

$230.00
System #3Multiple radio control using a manual RJ45 switch. This
package includes an HMI and an Auxiliary Option 2
board. Antenna connections are manually managed.
Order one Radio I/O board for each radio separately.
The user must supply the manual RJ45 switch and CAT5
cables to connect the Radio I/O modules to the switch.

Fully assembled System #3 package
$165.00
System #4Automatically select up to four radios using the CTR2 RJ45
Switch. This package includes an HMI and a 4-port CTR2
RJ45 Switch-Master board. Up to 3 RJ45 Switch-Expansion
boards can be added to select up to 16 radios.
Antenna connections are manually managed.
Order one Radio I/O module for each radio separately.
The user must supply the CAT5 cables to connect the
Radio I/O modules to the switch.

Fully assembled System #4 package
$210.00
System #5Automatically select up to four radios using the CTR2
RJ45 Switch and route a single antenna to them using
the Radio Antenna Switch Controller (RASC). This package
includes an HMI, a 4-port CTR2 RJ45 Switch-Master,
and a 4-port Radio Antenna Switch Controller board.
To select more radios, add up to 3 RJ45 Switch-Expansion
boards and increase the RASC capacity from 4 to 8 or 16
ports. Order one Radio I/O module for each radio separately.
The user must supply the CAT5 cables to connect the
Radio I/O modules to the switch. This package also
requires an electrically operated remote antenna switch
for operation.


Fully assembled System #5 package
$250.00
System #6Automatically select up to four radios using the CTR2
RJ45 Switch and route one or more antennas to them
using the Radio Antenna Switch Controller and Antenna
Switch Controller. This package includes an HMI, a
4-port CTR2 RJ45 Switch-Master, a 4-port Radio
Antenna Switch Controller (RASC), and a 4-port
Antenna Switch Controller (ASC) board.
To select more radios, add up to 3 RJ45 Switch-Expansion
boards and increase the RASC and ASC capacity to more
ports. Order one Radio I/O module for each radio separately.
The user must supply the CAT5 cables to connect the
Radio I/O modules to the switch. This package also
requires two electrically operated remote antenna

switches for operation.

Fully assembled System #6 package
Unavailable due to
parts availability
$290.00
UI #1This is a fully-assembled control console that contains a
Nextion 3.5″ Enhanced color touchscreen display
mounted in an acrylic case. The console includes the
Display Adapter board, rotary encoder and knob.
The user must supply the CAT5 cable to connect the
display to the HMI.


Fully assembled UI #1 display
$120.00
UI #2This is a fully-assembled control console that contains a
Nextion 5″ Enhanced color touchscreen display mounted
in an acrylic case. The console includes the Display Adapter
board, rotary encoder and knob.
The user must supply the CAT5 cable to connect the
display to the HMI.


Fully assembled UI #2 display
$150.00

INDIVIDUAL BOARDS

The following table lists the available boards. The first cost column is the cost of the PCB (with SMT components) only. The second cost column is the cost of the completed, programmed (if applicable), and tested board. A $15.50 USPS flat rate shipping charge will be added to each order. At the current time I’m only shipping to North America. International shipping will be added in the future.

NOTE: If you’re building your own HMI board you can purchase the ESP8266 WiFi module from various vendors. I’ve found that it’s generally hard to tell which version of firmware they have loaded on them until you connect them to a terminal program and query them. The last ones I bought had v1.2 AT firmware. CTR2 was developed and expects v1.74 AT firmware so if you get a board with older firmware you’ll need a programmer to upload the v1.74 firmware. To make it easier for you, I can supply pre-programmed and tested ESP8266 boards for $5.00 each. They’re on the order form.

BOARD PCB
ONLY
FULLY ASSEMBLED
BOARD
HMI – The fully assembled board includes all headers, connectors,
a Teensy 4.1 processor board, a Teensy 4 Rev D Audio Adapter,
an ESP-01 WiFi board and a 16 GB SD card. It is programmed with
the latest CTR2 firmware and functionally tested.

Fully assembled HMI board
$15.00 $140.00
ESP8266 WIFI Module – pre-programmed and tested with
v1.74 AT firmware – only required if you’re building the HMI
board yourself.
N/A$5.00
DISPLAY – The PCB is a fully assembled Display Adapter only.
The fully assembled board price includes either a
Nextion 3.5″ or 5″ Enhanced display, a rotary encoder with
knob, and is assembled in an acrylic wedge enclosure.

Display Adapter PCB Assembled 3.5″ Assembled 5″
$10.00 $120.00 (3.5″)
$150.00 (5″)
AUXILIARY w/Option 1 – The fully assembled and tested board
includes 25mm standoffs to mount it on the HMI stack and the
Radio I/O circuit to interface to a single radio. This option does
not require additional Radio I/O modules.

Fully assembled Aux w/Opt 1 board
$10.00$40.00
AUXILIARY w/Option 2 – The fully assembled and tested board
includes 25mm standoffs to mount it on the HMI stack. It’s built
on the same PCB as the Option 1 board but only includes the
10-pin ribbon and RJ45 connectors. It requires a
manual RJ45 switch to switch between two or more
Radio I/O modules.
$10.00 $15.00
RADIO I/O – The fully assembled and tested module interfaces
the HMI to one radio. It is packaged in a PacTec enclosure. One
Radio I/O module is required for each radio.

Fully assembled Radio I/O module
$5.00$40.00
RJ45 SWITCHMASTER – The fully assembled and tested board
includes all connectors, ribbon cables, and 25mm standoffs to
mount it on the HMI stack. One master board is required and
it manages the first 4 Radio I/O module connections.
RJ45 SWITCH-EXPANSION boards can be added to increase
the # of radio ports to 16.

Fully assembled 4-port RJ45 Switch board
$10.00 $60.00
RJ45 SWITCH-EXPANSION – The fully assembled and tested
board includes all connectors, ribbon cable to connect it to the
RJ45 Switch-Master board, and 25mm standoffs to mount it
on the HMI stack. One expansion board is required for each
additional group of 4 Radio I/O modules. Up to 3 expansion
boards can be installed in the system for a total of 16 ports.
$10.00 $60.00
RADIO ANTENNA SWITCH CONTROLLER – The fully assembled
RASC board is available in 4, 8 and 16 port versions. It includes
the ribbon cable to connect to the HMI and 25mm standoffs to
mount it to the HMI stack. The included terminal strip connects
to your remote antenna switch.
This board requires one or more electrically operated remote
antenna switches for operation.

Fully assembled 8-port RASC board
$10.004-Port: $40.00
8-Port: $50.00
16-Port: $70.00
ANTENNA SWITCH CONTROLLER – The fully assembled ASC
board is available in 4 and 8 port versions. It includes the
ribbon cable to connect to the HMI and 25mm standoffs to
mount it to the HMI stack. The included terminal strip connects
to your remote antenna switch.
This board requires an electrically operated remote antenna
switch for operation.

Fully assembled 8-port ASC board
$8.00 Unavailable due to
parts availability
4-Port: $40.00
8-Port: $50.00

Orders can be placed on the Order Form. If you have any questions or would like a quote on a different package, contact me.

Leave a Reply

Your email address will not be published.