Band decoder for Arduino

← Web page | HamShop.cz version →

This version is obsolete.

The hardware

Schematics

Front side

1-14 - green LED signalizing relay status.
15-16 - not used outputs.
white square - sign defines the type of equipment.

Back side

DATA - RJ45 input data connector for Band decoder

- TXD (UART/232 dependency internal switch).
- GND.
- RXD (UART/232 dependency internal switch).
- BCD-1 input.
- BCD-2 input.
- A/D input.
- BCD-3 input.
- BCD-4 input.

USB - +5V DC POWER supply, or upload arduino firmware.
ETHERNET - not used.
OUTPUTS - 14 relay outputs and GND.

How to connect Power

plug power via usb mini cable to AC adapter, computer or usb HUB

Configure inputs

uncomment and activate only one input in source code

//=====[ Inputs ]=============================================================================================

// #define INPUT_SERIAL   // telnet ascii input - cvs format [band],[freq]\n (serial.h)
// #define ICOM_CIV       // read frequency from CIV (icom_civ.h) ** you must enabled 'CI-V transceive' in TRX settings, and disable ICOM_CIV_OUT **
// #define KENWOOD_PC     // RS232 CAT (kenwood_pc.h)
// #define YAESU_BCD      // TTL BCD in A  (yaesu_bcd.h)
// #define ICOM_ACC       // voltage 0-8V on pin4 ACC(2) connector - need calibrate in (icom_acc.h)

And connect to TRX as described below

Available Inputs

In>Out Context table →

Input Serial

Activate uncomment line

#define INPUT_SERIAL

Not need any hardware settings, only send via USB to serial line ascii characters in preconfigured baudrate.

X,YYYYYYY\n

X - band output in range 0-14, if activate BCD output range is 0-10 because 11-14 reserved for BCD. 0 (zero) = no output will be turned on.
YYYYYYY - frequency in Hz - has no effect on the output relays, used if any CIV/CAT outputs activated.
\n - is LF Line Feed (0A in hex)

Next > Configure outputs →

ICOM CIV

Input works in sniff mode (data over one wire - RXD). This means that it is necessary to provide, transmit frequency of TRX to serial line

enabled CI-V transceive in TRX menu settings
comunicate with TRX by other device or software (for example logbook with CAT support)

Activate uncomment line

#define ICOM_CIV

Requires baud rate and CIV address in setting section of source code

#define SERBAUD      9600    // [baud] Serial port in/out baudrate
#define CIV_ADRESS   0x56    // HEX Icom adress (0x is prefix)

Deactivate watchdog and request

// #define WATCHDOG       10  // [sec] determines the time, after which the all relays go OFF, if missing next input data - uncomment for the enabled
// #define REQUEST            // use TXD output for sending frequency request (Kenwood PC, Yaesu CAT, Yaesu CAT old, Icom CIV)

In icom_civ.h file you can set rules to select individual output relays, with a resolution of one Hz.

            //=====[ Frequency (Hz) to Band rules ]======================================
            //                                        you can expand rules up to 14 Bands
            
                 if (freq >=   1810000 && freq <=   2000000 )  {BAND=1;}  // 160m
            else if (freq >=   3500000 && freq <=   3800000 )  {BAND=2;}  //  80m
            else if (freq >=   7000000 && freq <=   7200000 )  {BAND=3;}  //  40m
            else if (freq >=  10100000 && freq <=  10150000 )  {BAND=4;}  //  30m
            else if (freq >=  14000000 && freq <=  14350000 )  {BAND=5;}  //  20m
            else if (freq >=  18068000 && freq <=  18168000 )  {BAND=6;}  //  17m
            else if (freq >=  21000000 && freq <=  21450000 )  {BAND=7;}  //  15m
            else if (freq >=  24890000 && freq <=  24990000 )  {BAND=8;}  //  12m
            else if (freq >=  28000000 && freq <=  29700000 )  {BAND=9;}  //  10m
            else if (freq >=  50000000 && freq <=  52000000 ) {BAND=10;}  //   6m
            else if (freq >= 144000000 && freq <= 146000000 ) {BAND=11;}  //   2m
            else {BAND=0;}                                                // out of range
            //===========================================================================

short JP2 left (RXD)

Next > Configure outputs →

KENWOOD CAT

Input works in sniff mode (data over one wire - RXD). This means that it is necessary to provide, transmit frequency of TRX to serial line

comunicate TRX with other device or software (for example logbook with CAT support)
activate function Frequency request which utilizes data output TXD, and prevent the use of any from CAT/CIV output.

Activate uncomment line

#define KENWOOD_PC

Requires baud rate in setting section of source code

#define SERBAUD      9600    // [baud] Serial port in/out baudrate
// #define WATCHDOG       10  // [sec] determines the time, after which the all relays go OFF, if missing next input data - uncomment for the enabled
// #define REQUEST            // use TXD output for sending frequency request (Kenwood PC)

You can also use functions

WATCHDOG - determines the time, after which the all relay OFF, if missed next input data
REQUEST - use TXD output for sending frequency request - and prevent the use of any from CAT/CIV output.

In kenwood_pc.h file you can set rules to select individual output relays, with a resolution of one Hz.

        //=====[ Frequency (Hz) to Band rules ]======================================
        //                                        you can expand rules up to 14 Bands
        
             if (freq >=   1810000 && freq <=   2000000 )  {BAND=1;}  // 160m
        else if (freq >=   3500000 && freq <=   3800000 )  {BAND=2;}  //  80m
        else if (freq >=   7000000 && freq <=   7200000 )  {BAND=3;}  //  40m
        else if (freq >=  10100000 && freq <=  10150000 )  {BAND=4;}  //  30m
        else if (freq >=  14000000 && freq <=  14350000 )  {BAND=5;}  //  20m
        else if (freq >=  18068000 && freq <=  18168000 )  {BAND=6;}  //  17m
        else if (freq >=  21000000 && freq <=  21450000 )  {BAND=7;}  //  15m
        else if (freq >=  24890000 && freq <=  24990000 )  {BAND=8;}  //  12m
        else if (freq >=  28000000 && freq <=  29700000 )  {BAND=9;}  //  10m
        else if (freq >=  50000000 && freq <=  52000000 ) {BAND=10;}  //   6m
        else if (freq >= 144000000 && freq <= 146000000 ) {BAND=11;}  //   2m
        else {BAND=0;}                                                // out of range
        //===========================================================================

short JP2 right (RXD)
short JP7 (PWR max232)

short JP2 right (RXD)
short JP1 right (TXD)
short JP7 (PWR max232)

Next > Configure outputs →

KENWOOD TS-x50 CAT

This small PCB inverted TTL signal for old Kenwood RTX.

compatibile with Band decoder rev. 0.6 or higher
no more jumper needs
only plug small add-on to master pcb
connections to radio by DATA RJ45 connector

YAESU CAT

Input worked in sniff mode (data over one wire - RXD). This means that it is necessary to provide, transmit frequency of TRX to serial line

comunicate TRX with other device or software (for example logbook with CAT support)
activate function Frequency request which utilizes data output TXD, and prevent the use of any from CAT/CIV output.

Activate uncomment line

#define YAESU_CAT

Requires baud rate in setting section of source code

#define SERBAUD      9600    // [baud] Serial port in/out baudrate
// #define WATCHDOG       10  // [sec] determines the time, after which the all relay OFF, if missed next input data - uncomment for the enabled
// #define REQUEST            // use TXD output for sending frequency request (Kenwood PC, Yaesu CAT)

You can also use functions

WATCHDOG - determines the time, after which the all relay OFF, if missed next input data
REQUEST - use TXD output for sending frequency request - and prevent the use of any from CAT/CIV output.

In yaesu_cat.h file you can set rules to select individual output relays, with a resolution of one Hz.

        //=====[ Frequency (Hz) to Band rules ]======================================
        //                                        you can expand rules up to 14 Bands
        
             if (freq >=   1810000 && freq <=   2000000 )  {BAND=1;}  // 160m
        else if (freq >=   3500000 && freq <=   3800000 )  {BAND=2;}  //  80m
        else if (freq >=   7000000 && freq <=   7200000 )  {BAND=3;}  //  40m
        else if (freq >=  10100000 && freq <=  10150000 )  {BAND=4;}  //  30m
        else if (freq >=  14000000 && freq <=  14350000 )  {BAND=5;}  //  20m
        else if (freq >=  18068000 && freq <=  18168000 )  {BAND=6;}  //  17m
        else if (freq >=  21000000 && freq <=  21450000 )  {BAND=7;}  //  15m
        else if (freq >=  24890000 && freq <=  24990000 )  {BAND=8;}  //  12m
        else if (freq >=  28000000 && freq <=  29700000 )  {BAND=9;}  //  10m
        else if (freq >=  50000000 && freq <=  52000000 ) {BAND=10;}  //   6m
        else {BAND=0;}                                                // out of range
        //===========================================================================

short JP2 right (RXD)
short JP7 (PWR max232)

short JP2 right (RXD)
short JP1 right (TXD)
short JP7 (PWR max232)

Next > Configure outputs →

YAESU BCD

Activate uncomment line

#define YAESU_BCD

In yaesu_bcd.h file you can set rules to select individual output relays, dependency to BCD input.

=======[ Input BCD ]====================================================================

          BCD 1 --> */ { 0,  1,  0,  1,  0,  1,  0,  1,  0,  1,  0,  1,  0,  1,  0 }, /*
          BCD 2 --> */ { 0,  0,  1,  1,  0,  0,  1,  1,  0,  0,  1,  1,  0,  0,  1 }, /*
          BCD 3 --> */ { 0,  0,  0,  0,  1,  1,  1,  1,  0,  0,  0,  0,  1,  1,  1 }, /*
          BCD 4 --> */ { 0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,  1,  1 }, /*
                         |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
                         V   V   V   V   V   V   V   V   V   V   V   V   V   V   V
-------------------------------------------------------------------------------------
Band # in matrix table   0   1   2   3   4   5   6   7   8   9  10  11  12  13  14
Yaesu BCD                   160 80  40  30  20  17  15  12  10  6m  <--- free --->
-------------------------------------------------------------------------------------

========================================================================================

Next > Configure outputs →

ICOM ACC(2) voltage

Activate uncomment line

#define ICOM_ACC

In icom_acc.h file you can set voltage range rules to select individual output relays.

    //=====[ Icom ACC voltage range ]===========================================================

    if (VOLTAGE > 0.73 && VOLTAGE < 1.00 ) {BAND=10;}  //   6m   * * * * * * * * * * * * * * * * 
    if (VOLTAGE > 1.00 && VOLTAGE < 1.09 ) {BAND=9;}   //  10m   *           Need              *
    if (VOLTAGE > 1.09 && VOLTAGE < 1.32 ) {BAND=8;}   //  12m   *    calibrated to your       *
    if (VOLTAGE > 1.32 && VOLTAGE < 1.55 ) {BAND=7;}   //  15m   *         own ICOM            *
    if (VOLTAGE > 1.55 && VOLTAGE < 1.77 ) {BAND=6;}   //  17m   *     ----------------        *
    if (VOLTAGE > 1.77 && VOLTAGE < 2.24 ) {BAND=5;}   //  20m   *    (These values have       *
    if (VOLTAGE > 0.10 && VOLTAGE < 0.50 ) {BAND=4;}   //  30m   *   been measured by any)     *
    if (VOLTAGE > 2.24 && VOLTAGE < 2.73 ) {BAND=3;}   //  40m   *          ic-746             *
    if (VOLTAGE > 2.73 && VOLTAGE < 2.99 ) {BAND=2;}   //  80m   *                             *
    if (VOLTAGE > 2.99 && VOLTAGE < 4.00 ) {BAND=1;}   // 160m   * * * * * * * * * * * * * * * * 
    if (VOLTAGE > 0.00 && VOLTAGE < 0.10 ) {BAND=0;}   // parking

    //==========================================================================================

When calibrating can read the measured voltage in the terminal, enable the echo function and set serial baudrate

#define SERIAL_echo
#define SERBAUD      9600

short JP3

Next > Configure outputs →

Configure outputs

You can uncomment more than one output, but not all combinations are possible. See on Context table and description of parts.

Always usable - may all at once.

14 Relay - allways enabled (with enable BCD output, 10 relay)
Serial echo
Yaesu BCD

Only one from (not available during active Frequency request option (available only one TXD line)

//=====[ Outputs ]============================================================================================
// #define REMOTE_RELAY         // TCP/IP remote relay - need install and configure TCP232 module
// #define SERIAL_echo          // Feedback on serial line in same baudrate, CVS format <[band],[freq]>\n
// #define ICOM_CIV_OUT         // send frequency to CIV ** you must set TRX CIV_ADRESS, and disable ICOM_CIV **
// #define KENWOOD_PC_OUT       // send frequency to RS232 CAT ** for operation must disable KENWOOD_PC and REQUEST **
// #define BCD_OUT              // output 11-14 relay used as Yaesu BCD

External remote 14 IP Relay

Need two device with TCP232 ethernet module included

IP Band decoder
IP Relay

IP Band decoder use arduino firmware rev 0.4 or higher → for band decoder:

Remove all jumpers.
Configure Inputs → dependancy to your trx.
If band decoder work with you TRX well, activate transceive data with uncomment line
```
#define REMOTE_RELAY       // TCP/IP remote relay - need install and configure TCP232 module
```
(enable other outputs is not recommended), and upload new firmware (before upload remove all jumpers - after return back).
Enable IP module with short jumper JP5.

IP Relay - use different arduino firmware for IP relay → band-decoder-0x-rel

Remove jumper JP5.

configure three settings

#define delayR   10     //  sec [Relay]         determines the time, after which the relay parking
#define parking  14     //  out [Relay]  1-14   parking output after timeout - optimally for grounded antenna
int baud = 9600;

baudrate must be same as TRX.

Upload firmware.
Return back jumper JP5.

Both devices

Configure Network → baudrate must be same as TRX.

NOTE: all baudrate must be same

TRX
Arduino firmware (band decoder)
IP module in band decoder
Arduino firmware (IP relay)
IP module in IP relay

Next > Upload Firmware →

14 RELAYS

Allways enabled.

An entrance band data, or frequency, converts to output band 0-14 which can be configured in the following table - Preset Band to output matrix - in default settings Band-1 corresponds to Relay-1, etc. You can sets any combination outputs for each band separately. With change zeros and ones in the Matrix table. Band-0 reserved for out of range inputs measure.

//=====[ Sets band -->  to output in MATRIX table ]===========================================================

        boolean matrix[15][15] = { /*

        Band 0 --> */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /*  if inputs out of range
\       Band 1 --> */ { 1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /*
 \      Band 2 --> */ { 0,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /*
  \     Band 3 --> */ { 0,  0,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /*
   \    Band 4 --> */ { 0,  0,  0,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /*
    \   Band 5 --> */ { 0,  0,  0,  0,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /*
     \  Band 6 --> */ { 0,  0,  0,  0,  0,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /*
IN    ) Band 7 --> */ { 0,  0,  0,  0,  0,  0,  1,  0,  0,  0,  0,  0,  0,  0,  0 }, /*
     /  Band 8 --> */ { 0,  0,  0,  0,  0,  0,  0,  1,  0,  0,  0,  0,  0,  0,  0 }, /*
    /   Band 9 --> */ { 0,  0,  0,  0,  0,  0,  0,  0,  1,  0,  0,  0,  0,  0,  0 }, /*
   /    Band 10 -> */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  0,  0,  0,  0,  0 }, /*
  /     Band 11 -> */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  0,  0,  0,  0 }, /*
 /      Band 12 -> */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  0,  0,  0 }, /*
/       Band 13 -> */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  0,  0 }, /*
        Band 14 -> */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  0 }, /*
                        |   |   |   |   |   |   |   |   |   |   |   |   |   | 
                        V   V   V   V   V   V   V   V   V   V   V   V   V   V   
                     -----------------------------------------------------------
                     |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  |
                     -----------------------------------------------------------
                                          OUTPUTS RELAY*/
        };                                                 
//============================================================================================================

Note: if enable BCD output function, relay 11-14 reserved for BCD.

Next > Upload Firmware →

SERIAL ECHO

Activate uncomment line

#define SERIAL_echo

Requires setting

#define SERBAUD  9600

Next > Upload Firmware →

YAESU BCD output

Activate uncomment line

#define BCD_OUT

This option will reduce the number of relays at 10. Relay 11-14 used for BCD.

In band-decoder.ino file you can set rules to select BCD output, dependency to detected band input.

//=====[ Output BCD ]==========================================================================
#if defined(BCD_OUT)
    void bcdOut(){
        boolean BCDmatrixOUT[4][11] = { /*
        --------------------------------------------------------------------
        Band # to output relay   0   1   2   3   4   5   6   7   8   9  10
        (Yaesu BCD)                 160 80  40  30  20  17  15  12  10  6m
        --------------------------------------------------------------------
                                 |   |   |   |   |   |   |   |   |   |   |
                                 V   V   V   V   V   V   V   V   V   V   V
                            */ { 0,  1,  0,  1,  0,  1,  0,  1,  0,  1,  0 }, /* --> Relay 11
                            */ { 0,  0,  1,  1,  0,  0,  1,  1,  0,  0,  1 }, /* --> Relay 12
                            */ { 0,  0,  0,  0,  1,  1,  1,  1,  0,  0,  0 }, /* --> Relay 13
                            */ { 0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1 }, /* --> Relay 14

Next > Upload Firmware →

ICOM CIV output

Activate uncomment line

#define ICOM_CIV_OUT

Requires baud rate and CIV address in setting section of source code

#define SERBAUD      9600    // [baud] Serial port in/out baudrate
#define CIV_ADR_OUT  0x56    // HEX Icom adress (0x is prefix)

short JP1 left (TXD)

Next > Upload Firmware →

KENWOOD CAT output

Activate uncomment line

#define KENWOOD_PC_OUT

Requires baud rate in setting section of source code

#define SERBAUD      9600    // [baud] Serial port in/out baudrate

short JP1 right (TXD)
short JP7

Next > Upload Firmware →

YAESU CAT output

Activate uncomment line

#define YAESU_CAT_OUT

Requires baud rate in setting section of source code

#define SERBAUD      9600    // [baud] Serial port in/out baudrate

short JP1 right (TXD)
short JP7

Next > Upload Firmware →

Upload Firmware

Band decoder settup is performed via firmware source code. It is compile and upload to device with Arduino GUI.

For beginners Getting Started with Arduino.
Download source code and configuring it.
Before uploading new firmware you have to

remove top cover - loosening the two screws on left and right side of the box.
remove JP1, JP2 and JP7 jumpers

Select menu

Tools/Board/Arduino nano
Tools/Procesor/ATmega328
Tools/Port/<your port>

Upload
After upload set back jumpers dependency to setup.

Have a fun!

Third party Firmware

Set to "ON" the relay "14" only at the power on - by IZ2HFG - Download

← Web page | HamShop.cz version →