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microHAM MK2R Manual

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microHAM © 2010 All rights reserved
microKEYER: 2 Radio
MK2R & MK2R+
microHAM
fax: +421 2 4594 5100
e-mail:
support@microham.com
homepage:
www.microham.com
Version 7.6
14 August, 2010
1

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  • Page 1 © 2010 All rights reserved microKEYER: 2 Radio MK2R & MK2R+ microHAM fax: +421 2 4594 5100 e-mail: support@microham.com homepage: www.microham.com Version 7.6 14 August, 2010...

  • Page 2: Table Of Contents

    Accessory (ACC) Port Tab ..................60 Functions Tab.......................63 6. MK2R OPERATION ........................65 Setting Audio Levels ......................65 Configuring MK2R for your radios ................65 Setting Audio Levels in Windows 2000 and Windows XP ........... 67 Setting Audio Levels in Vista and Windows 7............... 69...
  • Page 3 8. PACKAGE CONTENTS ......................80 9. WARRANTY ..........................80 DECLARATION OF CONFORMITY ..................81 APPENDIX A – CONNECTORS ....................82 APPENDIX B – microHAM Control Protocol ................85 APPENDIX C – RFI Considerations ..................87 APPENDIX D – Tracking ......................88...

  • Page 4: Features And Functions

    (R1=SSB, R2=CW) • innovative dual sound card processing • integrated dual USB sound core (MK2R+ only) • 16 buttons/42 lights for ergonomic function control and status display • compatible with most standard MS Windows based logging or control programs •...
  • Page 5 • front panel controls to optimize mic drive for each radio • integrated high performance, low noise floor USB sound core (MK2R+ only) • separate USB sound codec for digital modes (MK2R+ only) •...

  • Page 6: Important Warnings

    ALWAYS check the polarity of the 13.8 V power supply. When changing Radio #1, ALWAYS be sure the proper microphone for the radio is connected to the MK2R RJ45 MIC jack BEFORE connecting the DB37 RADIO cable. If dissimilar radios are attached to MK2R or MK2R+, NEVER connect the microphone of the Radio #2 to the RJ45 microphone jack on the rear panel.

  • Page 7: Panel Description

    3 - PANEL DESCRIPTION Front Panel B1 – POWER: Turns MK2R/MK2R+ on or off. While in operation, a short press will lock or unlock the front panel. When locked, the LOCK light will illuminate. B2 – MIC: Selects the microphone. When the REAR light is illuminated the microphone attached to rear panel RJ45 MIC jack is active.
  • Page 8 RADIO2 button and pressing the LEFT EAR (B4) and RIGHT EAR (B5) buttons. The selection will be saved in MK2R memory. By default the left ear is connected to VFO A (left channel) of RADIO2 and right ear is connected to VFO B (right channel) of RADIO2 Pressing the RADIO1 (B7) and RADIO2 (B9) buttons at the same time enables automatic headphone switching (AUTO mode).
  • Page 9 Transmit switching is based on the configuration options and application control signals described later. B16 – LEFT: Selects the audio source connected to the left channel of SC 2 Line In (MK2R) or "USB Audio CODEC" (MK2R+). (4) – Recording/Digital left channel audio status RADIO1: A –...
  • Page 10 GREEN color indicates when PTT2 (rear panel of RADIO2) is active YELLOW color indicates when both PTT1 + PTT2 are active (16) – RECORDING/DIGITAL LEFT: Controls the left channel audio level to SC2 Line In (MK2R) or USB Audio CODEC (MK2R+) for audio recording or digital mode operation.

  • Page 11: Rear Panel

    All microphone controls are connected to the RADIO1 DB37 connector (pins 12-15 and 30-33). IMPORTANT WARNING: If dissimilar radios are attached to the MK2R or MK2R+. NEVER connect the microphone from Radio #2 to this jack.
  • Page 12 © 2010 All rights reserved (7) – LPT: Input from computer LPT (printer) port. Connector: DB25 female (8) – OUT SC1 (MK2R only): Input from the Line Out of the computer Sound Card #1 Connector: 3.5mm (1/8”) stereo TIP – Left channel RING –...
  • Page 13 © 2010 All rights reserved (20) – PTT IN 2: Amplifier Key line from RADIO 2. Connector: RCA TIP – Signal SHELL – Ground NOTE: This connection is required to support VOX operation and PTT by software (CAT). (21) – FS2: Footswitch 2 input (configurable function, by default keys RADIO2).
  • Page 14 (28) – DC 12V: Power input. Connector: 2.1/5.5mm coaxial CENTRAL – Positive pole SHELL – Negative pole (Ground) NOTE: DO NOT connect MK2R/MK2R+ to any power supply used for either transceiver. IMPORTANT WARNING: Be sure to observe the proper polarity!

  • Page 15: Installation

    3. Plug the DB37M of the other radio cable set into the RADIO2 connector on the rear panel of the MK2R. Connect ALL connectors from the cable set to the matching jacks on the rear panel of RADIO2. Each connector on the radio interface cable is marked same as the jack on your transceiver.

  • Page 16: Installing Microham Usb Device Router

    © 2010 All rights reserved 10. MK2R only (not MK2R+) – connect two sound cards to their respective jacks OUT SC1: connect to the output of sound card 1 (line out or speaker) MIC SC1: connect to the microphone jack of sound card 1...

  • Page 17: Configuring The Usb Audio Codec And Usb Voice Codec

    © 2010 All rights reserved Configuring USB Audio CODEC and USB Voice CODEC (MK2R+ only) Windows will automatically install the USB Audio Device driver to support the USB Audio CODEC and USB Voice CODEC in MK2R+ Windows automatically selects any newly installed audio device as the default device for Sound Playback and Sound recording.
  • Page 18 © 2010 All rights reserved For Windows Vista and 7, right click on the Speaker Icon on the task bar and select "Playback Devices” or open “Sounds” in Control Panel and reset the Default Playback device to your computer's primary sound...

  • Page 19: Configuring Microham Usb Device Router

    In order to configure and use MK2R with Windows compatible application programs, you must have installed the USB driver, started Router, applied power to MK2R and turned the device on. Router is then configured as required by the application (logging, control or digital mode) software.

  • Page 20: Creating And Using Virtual Serial Ports

    © 2010 All rights reserved Creating and Using Virtual Serial Ports microHAM Router provides a set of virtual serial ports which allow Windows applications (logging and digital software) to work with MK2R just as they would work with "real" (hardware) serial ports.

  • Page 21: Microham Usb Device Router

    Audio Mixer and DVK tabs have no effect. WARNING: When selected, Router will not be able to control MK2R Audio Mixer and DVK, use it carefully! Manually assign audio devices: when checked, Router will allow the user to select audio devices...

  • Page 22: Menu: Preset

    Exit: Clicking on this item will terminate Router. NOTE: when Router is terminated the virtual ports will be closed and application software will be unable to communicate with MK2R and the radio. PRESET MENU The requirements of each application (logging, control and digital mode programs) are different.

  • Page 23: Menu: Device

    Each device is identified by a unique serial string. NOTE: Router supports all microHAM USB devices in a single instance by creating a separate root tab for each device. It is not necessary to run multiple instances of Router; a secondary instance can not be started.
  • Page 24 SO2R and ACC tab to the MK2R EEPROM. If MK2R is operated without connection to the computer it will use the settings stored in EEPROM. If MK2R is connected to a computer running Router, the Router settings will be used but the default settings are retained in EEPROM.

  • Page 25: Menu: Virtual Port

    Setup Guides: Link to software configuration guides for many common applications. Cable Schematics: Link to cable diagrams. Download Documents: Downloads microHAM documentation including updated manuals and setup guides. You may specify the products for which you want documentation. This requires an Internet connection.

  • Page 26: Device Configuration Tabs

    © 2010 All rights reserved DEVICE CONFIGURATION TABS There are twelve (12) tabs for configuring MK2R. Each tab controls part of MK2R's functions. Except for CW Messages, FSK Messages and Functions tabs, any change is applied immediately to MK2R.

  • Page 27: Ports Tab

    Router then in the application. Proper port configuration is critical for operation with application software. MK2R has ten channels – each channel provides an indication of the settings applied by the application and current state (e.g., or or off).

  • Page 28: Ports: Cat & 2Nd Cat

    © 2010 All rights reserved CAT PORT & 2 CAT PORT The CAT channel is used by the host application to control transceiver frequency, mode, T/R switching and many other parameters. The application communicates with the radio using a serial protocol. Most modern radios implement some form of serial control but almost every radio implementation is different.
  • Page 29 CAT port. Each CAT port has own check box. Port: Defines a virtual or hardware serial port for an SDR radio used with the MK2R. The CAT connection in MK2R is disabled. This function is not currently supported.
  • Page 30 (...). When a packet ends with three dots it means that the data continues in the next frame. IMPORTANT: If MK2R is to operate when Router is not running, the settings must be saved as power-up defaults using “Device | Store as Power-Up Settings.”...

  • Page 31: Fsk & 2

    © 2010 All rights reserved FSK & 2 FSK PORTS The FSK channel is used by the application program to send the FSK keying signal. FSK is used primarily for RTTY. It is very important to understand the difference between FSK and AFSK.

  • Page 32: Ports: Fsk & 2 Ports: Cw

    To test FSK operation from the computer to the radio, click the Test button with no port assigned or the port closed. The Test button will generate "RY" two times. NOTE: Select RADIO1 or RADIO2 (as appropriate) with the buttons on MK2R when testing. CW PORT By its very nature, USB is not well suited to transfer the real time events required for CW keying.

  • Page 33: Ptt & 2

    Power Amplifier, LNA or receive antenna switch. To test PTT, click on the Test button with no port assigned or the port closed. NOTE: Select RADIO1 or RADIO2 (as needed) with the buttons on MK2R when testing. FOOT SWITCH Router allows assigning a virtual serial port to the foot switch channel and selecting one of four available input control lines (CTS, DCD, DSR or RING).

  • Page 34: Ports: Winkeyer2

    WinKey and the red arrow indicates data flow from WinKey to the host application. Test: Sends "Test" via Winkey2 when the channel unassigned or closed. NOTE: Select RADIO1 or RADIO2 (as appropriate) with the buttons on MK2R when testing. Mon: “WinKey Monitor” allows capturing communications between Router or the application and WinKey2.

  • Page 35: Ports: Control

    LPT CW) will be used by MK2R. Selecting multiple sources will result in distorted CW output. TIP: If you plan to use MK2R with DOS based software, check both Use LPT for CW and Use LPT for PTT and select "Device | Store as Power-up Settings" from the Router menu.

  • Page 36: Ports: Cw/Ptt Steering

    MK2R. This limits WinKey to a single CW output with no "two radio" support. Steer WinKey CWPTT allows MK2R to steer the “RADIO 1” CW and PTT outputs of WinKey 2 to the active radio using the "steering" control signal (TX focus) defined on the SO2R tab.

  • Page 37: Audio Switching Tab

    • speaker icon in the System Tray area of the Task Bar). If your system has more than one sound card installed (as it should with MK2R or MK2R+), click Options • | Properties and select the sound card you are using. Then select "Playback" and enable ALL controls to be displayed.
  • Page 38 (VOX, foot switch, computer generated transmit/receive switching, etc.) for each mode. In addition, two sound cards (external for MK2R or internal for MK2R+) - one for CW and voice (USB Voice CODEC or SC1) and one for digital modes (USB Audio CODEC or SC2) are selected automatically based on radio mode and user preferences.
  • Page 39 F1 (B10) through F4 (B13). Functions F5 through F8 are accessed by holding + (B5) and pressing F1 through F4. To enter into programming mode, MK2R must be placed into AUTO mode by pressing the RADIO1 (B7) and RADIO2 (B9) buttons at the same time and then selecting + (B5) and BOTH (B8) simultaneously. The AUTO light will flash while the MK2R is in programming mode.
  • Page 40 © 2010 All rights reserved 1. Transmit by VOX or software (CAT) command. This setting is displayed in the TOP picture and indicated by the first letter of the settings (ABCm). The current operating state is indicated by a large black frame around the switching scheme picture.
  • Page 41 © 2010 All rights reserved 3. Transmit by foot switch or hand mic PTT. This setting is displayed in the BOTTOM picture and indicated by the third letter of the settings (ACmA). The current operating state is indicated by a large black frame around the switching picture.
  • Page 42 © 2010 All rights reserved NOTE: Use “Select by frequency” only if your radio does not have a dedicated mode (PKT, DIG, DATA or USB-D/LSB-D etc.) for audio based digital modes like PSK31, MFSK, OLIVIA, FSK-RTTY etc. and you must use USB/LSB/FM for digital operation.
  • Page 43 Elecraft K2 that do not have rear panel audio input for digital modes. Router will show a black box around the selected mode/audio configuration. MK2R must know which channel of the sound card to use for RADIO1 and which for RADIO2. This is done with the Left / Right selector labeled Use line out channel.

  • Page 44: Audio Mixer Tab

    SC2 or USB Audio CODEC (DIGITAL modes). You must select the names of the sound cards that are connected to MK2R or MK2R+ in the Audio Mixer. For MK2R+ choose USB Voice CODEC at the left side and USB Audio CODEC at the right side. For MK2R select the system name of the sound card connected to SC1 jacks (Voice) in the left side and the system name of the sound card connected to the SC2 jacks (digital) in the right side.
  • Page 45 As a starting point, set the MASTER levels to 70% and adjust the hardware controls for proper drive levels as documented under "Setting Audio Levels." The WAVE sliders are only used to set the playback level from non-microHAM DVK software. TX Mixer: this button opens the Windows Volume Control (Playback Mixer) for the selected sound card.
  • Page 46 Knob TX1 (11) adjusts the drive for RADIO1, knob TX2 (14) adjusts the drive for RADIO2. Test Signal: causes MK2R to output a 1500 Hz audio tone for setting the transmit output level for AFSK digital modes. The radio with transmit focus will be keyed.
  • Page 47 USB Audio CODEC this attempt will generate an error message. Ignore this error - USB Audio CODEC does not have a recording mixer. MK2R shows sliders for the sound card line in. Keep the inputs at about 80-90% and use front panel pots for adjustment. When correctly adjusted, the input signal should never reach RED level.

  • Page 48: Ptt Tab

    The foot switch attached to the MK2R rear panel RCA jacks. ● MK2R can be configured to recognize one or two foot switches on the SO2R tab. If MK2R is configured for one foot switch, both inputs will operate in parallel.
  • Page 49 PTT lead and open after the radio PTT by LNA PTT tail setting. MK2R can independently select the active PTT output for each radio based on the mode reported by the transceiver. If Router is not able to read the operating mode from your radio (radio does not have computer control port or does not report usable mode information), you can select one of four fixed “no radio”...
  • Page 50 © 2010 All rights reserved PTT lead: Specifies lead-in delay. In CW with PTT1, PTT2 or Semi Break-in, PTT lead is the time between activation of PTT1, PTT2, PA PTT and LNA PTT and the first CW output. Transceiver PTT (PTT1/PTT2), PA PTT and LNA PTT all activate at the same time.
  • Page 51 © 2010 All rights reserved FOOT SWITCH SEQUENCER Additional functions can be associated with the foot switch (or hand mic PTT). MK2R recognizes when the foot switch is closed (pressed) or open (released). MK2R can mute or block serial port CW, FSK, PTT and audio when the foot switch is activated.

  • Page 52: Cw/Winkey Tab

    © 2010 All rights reserved CW/WinKey TAB This tab provides the configuration for the internal, WinKey2 based, CW keyer. A complete WinKey2 manual can be downloaded from : http://k1el.tripod.com/files/WinkeyUSBman.pdf . Thanks to Steve Elliott, K1EL for this great product.

  • Page 53: Cw Messages Tab

    Test: plays a message without storing it Store: saves one message to MK2R memory Store All: saves all messages to MK2R memory Load from File: loads all messages from file...

  • Page 54: Fsk Messages Tab

    Delay: sets the delay in seconds before looping or calling another message Store: saves one message to MK2R memory Store All: saves all messages to MK2R memory Load from File: loads all messages from file...

  • Page 55: Dvk Tab

    © 2010 All rights reserved DVK TAB MK2R allows recording and playing nine voice messages per bank and an unlimited number of banks (limited only by the capacity of the computer hard disk). Banks can be managed with Rename, Add and Remove buttons.

  • Page 56: Keyboard Tab

    © 2010 All rights reserved KEYBOARD TAB The Keyboard Tab controls the operation of a PS/2 keyboard or numeric keypad connected to the PS/2 jack. It is also possible to define control functions for the numeric keypad. Custom controls are invoked by pressing and holding the asterisk key (*) with Numkey0-9.

  • Page 57: So2R Tab

    Computer AUTO Control: If MK2R is in AUTO TX Focus and AUTO RX Focus, radio selection is under software control. MK2R provides three ways for the application to control focus: the traditional parallel (LPT) port – the "CT/NA standard," serial port handshake signals, or by software command (microHAM SO2R Protocol).
  • Page 58 SO2R mode disabled. ALWAYS observe contest rules !!! Disable band lock (in band SO2R): In order to prevent accidentally transmitting with both radios on the same band, MK2R will normally inhibit transmission when both radios are on the same band or data from one radio is lost.
  • Page 59 This means that the paddles will be connected to the radio not in use by the logging software. Reverse DVK focus: if the logger is using its own DVK, the MK2R DVK will key the opposite (unselected) radio. You can use the MK2R DVK (with PS/2 keyboard or keypad) to call a station on the radio that does not have focus.

  • Page 60: Accessory (Acc) Port Tab

    © 2010 All rights reserved ACCESSORY (ACC) TAB The Accessory connector supports 29 I/O functions which can be assigned to six "ports." The left half of the Accessory tab is for RADIO1 (pins 4-9) - the right half for RADIO2 (pins 2,3 and 10-13). Pins 2, 3, 4, 5 are fully configurable and provide radio specific and global functions.
  • Page 61 RADIO 1/RADIO2 ENABLE • Enable signal from MK2R to Radio1/Radio2 – delays generation of RF by radios equipped to use the signal and provides “hot switch” free operation even with VOX or CAT T/R switching RADIO 1 /RADIO2 INHIBIT IN •...
  • Page 62 (“null modem”) cable which uses only three wires (pin 2 to pin 3, pin 3 to pin 2 and pin 5 to pin 5. The microHAM ACC-DualSteppIR is a dual TTL to RS-232 converter designed to connect MK2R and the DATA OUT ports of two SteppIR controllers. Contact your microHAM distributor.

  • Page 63: Functions Tab

    The Functions Tab provides a tool for managing the operating modes and defining the audio configuration in each of the eight states. Configuration data can be uploaded to MK2R and saved as a function or it can be saved to an file on the computer. Any single function or all eight functions can be retrieved from MK2R, saved on the computer and modified.
  • Page 64 MK2R with STORE or STORE ALL before they can be used. Once the configuration has been written to MK2R, it can be selected by pressing the appropriate F-key on the MK2R front panel or by selecting the desired function and pressing...

  • Page 65: Mk2R Operation

    6 - MK2R OPERATION Setting Audio Levels For optimum operation of MK2R and MK2R+, the audio levels must be set properly. The function of each control was described in the AUDIO MIXER and DVK sections of the manual. About microphones and MK2R: In order to configure MK2R correctly, it is absolutely necessary to understand the difference between electret and dynamic microphones.
  • Page 66 Icom DC bias from reaching the microphone. Add a 1 uF capacitor in series with the microphone element (either inside the body of the mic or in the cable between MK2R and the mic). Turn the RECORDING-LIVE MIC preamplifier ON and, if necessary, turn on the RADIO preamplifier for Icom radio only.

  • Page 67: Setting Audio Levels In Windows 2000 And Windows Xp

    (microphone, line in, wave, etc.). Press both Get ID buttons and confirm that the correct Sound Cards are selected. NOTE: MK2R can use the same sound card for both SC1 (Voice) and SC2 (Digital) if is has separate microphone and line inputs (e.g., a "three port" sound card).
  • Page 68 © 2010 All rights reserved 14. On the DVK tab, select default bank, set the REC MIC, TX MASTER and TX WAVE levels to the same position as you set on the Audio Mixer tab. 15. Press the "Record" button and adjust the recording level with the REC MIC level so that signal does not peak into to the red area.

  • Page 69: Setting Audio Levels In Vista And Windows 7

    For MK2R select the sound card connected to the SC1 jacks in the Mixer and WaveOut. ● NOTE: MK2R can use the same sound card for both SC1 (Voice) and SC2 (Digital) if is has separate microphone and line inputs (e.g., a "three port" sound card).
  • Page 70 Balance and set LEFT and RIGHT to 70% ● 24. Select Radio 1 on MK2R Transmit Focus. 25. Confirm that all transceiver signal processing circuits (speech processor, TX DSP, etc.) are off. 26. Click the "Sound Card" button on the Audio Switching tab. Select "Speakers (USB Audio CODEC)" or the sound card attached to OUT SC2 in the WaveOut box and press the "Test Signal"...

  • Page 71: Understanding Transmit (Tx) Focus

    TX focus. In manual mode, MK2R will redirect all CW, FSK, PTT, WinKey and DVK signals to the “active” radio (the radio with transmit focus) even when the signal was assigned to the other radio.

  • Page 72: Understanding Headphone Switching

    (2) for left ear and (3) for right ear. When SC L (left) or SC R (right) channel of sound card is selected, MK2R will switch the UNUSED sound card to the headphones. The “unused sound card” depends on mode of both radios.
  • Page 73 For proper automatic operation, the desired configuration must be defined for each applicable state. This can be accomplished by using the logging program to place MK2R in each state and manually selecting the headphone inputs for that state or the Functions Tab can be used as a visual editor to create, upload and apply the configuration.

  • Page 74: Using Functions

    S&P on both radios, 40 meter split operation, etc. MK2R has eight memories: F1 - F4 are accessed by pressing a single button and F5 – F8 are accessed by holding + and pressing F1 – F4. These memories are retained in EEPROM when MK2R is turned off. The contests of the memories can be saved to a file on the computer either individually or as a group.

  • Page 75: Understanding Interlocks

    BUSY: is a lockout designed for Serial Devices defined on the ACC tab. When the serial device responds to the MK2R with a "busy" response, MK2R locks out the specified radio. While the serial device is BUSY the BUSY light on MK2R front panel will be lit.

  • Page 76: System Considerations

    LNA/RX antenna switcher to activate. The radio PTT output must be connected to the MK2R PTT IN jack for proper ENABLE generation. INHIBIT IN: When a pin is configured as an inhibit input, an external device can lock out the radio as long as the input is active.

  • Page 77: External Keyboard/Numeric Keypad

    NOTE: The keyboard/Keypad must be PS/2. A USB device with PS/2 adapter will not work properly. MK2R includes the ability to generate FSK or CW, record and play CW, FSK or VOICE messages using a PS/2 keyboard or numeric keypad connected to the PS/2 jack. A numeric key pad is sufficient to record and play CW and DVK messages, control CW speed (WPM) or play a serial number message.
  • Page 78 © 2010 All rights reserved Voice std. key Numeric Keypad mode mode mode start/stop recording of message (recording mode is NUM LOCK indicated by NUM LED) Tune (can be canceled by keys NUM 0 or ESC, or by the...

  • Page 79: Hardware Specifications

    © 2010 All rights reserved 7 - HARDWARE SPECIFICATIONS USB: USB 2.0 Full speed, USB 1.1 compatible Power consumption: USB – less than 300mA Power supply – less than 300mA at 13.8V (max. 16V) Radio Ports: 2 x RxD, TxD – max. 57,600 Baud, RTS/CTS handshake supported...

  • Page 80: Package Contents

    8 - PACKAGE CONTENTS The product includes MK2R™ or MK2R+™, USB cable, LPT cable, six (6) - MK2R or two (2) - MK2R+ stereo audio cables, headphone cable ending with two (2) 6.3mm (1/4”) plugs, two (2) 3.5mm (1/8”) plugs, one (1) coaxial 2.1mm/5.5mm power plug, two (2) RCA to RCA cables, and CD-ROM containing the...

  • Page 81: Declaration Of Conformity

    © 2010 All rights reserved DECLARATION OF CONFORMITY Federal Communications Commission Statement (USA) This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

  • Page 82: Appendix A - Connectors

    © 2010 All rights reserved APPENDIX A – CONNECTORS RADIO 1, RADIO 2 - DB37 Pin # Label Description No contact RS232 RTS RS232 radio port RTS output RS232 CTS RS232 radio port CTS input IF-FIF iface matrix - used for configuring desired levels for radio control interface...
  • Page 83 © 2010 All rights reserved ACCESSORY - DB25 Pin # Label Description PIN2 Configurable I/O, TTL levels, max 4mA load, RX DATA Serial 2 5V output, max. 100mA load PIN3 Configurable I/O, TTL levels, max 4mA load, TX DATA Serial 2...
  • Page 84 © 2010 All rights reserved iLINK – miniDIN 6 Pin # Label Description DATA I2C Data channel for expansion (TTL) Not connected Connected to system ground and case +5 V +5V output, max.100mA. CLOCK I2C Data Clock (TTL) Reserved – do not use...

  • Page 85: Appendix B - Microham Control Protocol

    APPENDIX B – microHAM Control Protocol Introduction This appendix describes the commands in the microHAM Control Protocol that are likely to be useful to users in creating custom macros in loggers that support user defined “scenarios.” These user level commands can be used to select antenna outputs (e.g., the 4 bit value on pins 6-9 (Radio 1) and 10-13...
  • Page 86 © 2010 All rights reserved ACC output control: These commands control 16 bits represented by the 4-bit outputs of the ACC ● port. The 4-bit outputs must be configured for “Protocol Control” on the ACC tab. Current firmware treats the 4 four bits as a HEX representation (0-F) of a 1:16 decoder connected to the port. Only one output may be active.

  • Page 87: Appendix C - Rfi Considerations

    It is absolutely important to prevent ground currents from flowing to the common ground point by way of the signal cable. If you use a microHAM "keyer," a good test is to remove the DB15/DB37 connector and USB cable from the keyer and measure the resistance from the shell of the DB15/DB37 to the shell of the USB cable.

  • Page 88: Appendix D - Tracking

    Mode linking and bidirectional frequency tracking are not currently supported. microHAM will be expanding features and adding support for additional radios in the future. The initial version has been tested with Perseus SDR only. PERSEUS...

This manual is also suitable for:

Mk2r+Micro keyer 2r+Micro keyer 2r

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