User manual Frimware 2.4

When DSP-7 is turned on, a welcome screen appears and all functions are turned off and disabled (except fan control if the cooler is already hot). If a power relay is used, the power amplifier supply voltage is also turned off. The only control available is the ON key.
Touching the ON button turns on the PA supply and the controller is in standby mode. (The photos shown here show DSP-7 in English mode, in the system menu you can switch to German, everything will then be displayed in German language).

Operating modes 

Standby: The power supply is switched on. The transceiver is directly connected to the antenna, the
amplifier is inactive and pressing the PTT has no effect. 

Active: The controller is waiting for PTT. When PTT is pressed, the RX / TX relay switches to TX and
the amplifier is in operation. 

Emergency-OFF: When the Emergency-OFF button is pressed or an emergency situation occurs, the controller goes into emergency OFF mode and everything is turned off. Correct the error situation and press ON to
reactivate the system.
When the ON button is pressed after power up, the controller will display the screen with the large
bars. 

Buttons at the bottom of the screen 

EMERGENCY OFF: switches everything off.
ACTIVE: Switches to active mode, the amplifier can be used normally.
STANDBY: switches to standby mode, the amplifier is in standby mode but does not respond to 
ANT. select: Manual antenna selection
MENU: Displays the main selection screen

Buttons on the right side

The band select buttons are used to switch to a band. This automatically selects the appropriate low
pass filter and antenna (if an antenna switch is present). The AUTO key can be used if an ICOM
transceiver is connected via the CI / V interface or via RS232 remote control
The assignment of antennas to bands is done in the antenna screen as described below.
The assignment of low-pass filter banks to bands is done in the SYSTEM menu and is described there.

Status line below

Indication of the currently active antenna nd selected filter bank.

Screen overview

Press the MENU button to enter the screen selection and system setup

OVERVIEW

This screen shows the most important operational data.
As with any other screen, the bar shows the average power value and the number shows the
maximum value. The bar has a blue marker which also shows the peak value.

POWERBAR

Larger display of output power and SWR as well as someother measurements

SWRMETER

Display of power and SWR in a photorealistic simulation of an analog cross pointer meter as well as some
other measurements

BRIDGE

Complete overview of all three power / SWR couplers as well as some calculated values like
reflection loss and others.

HISTORY

Chart view of output power (red), peak output power (blue) and DC input power (green)

ADCVALS

This screen displays the raw values measured by the on-board AD converter. This data is very useful
for installation and debugging purposes.

RESULTS

This screen shows the values of the AD converters, but (unlike the previous screen) the real values
are calculated from the raw values.

STATUS

This screen shows the status of the various digital inputs and outputs. It is very useful when setting
up the amplifier. For example, you can see if relays are energized or not

SWITCH

In this screen you can switch the outputs manually. Note: When this screen is open, the automatic
safety functions are disabled. Use this only for testing purposes during setup and maintenance of the
amplifier.

ANTENNA

This screen allows you to assign bands to the antennas. The controller has two antenna outputs for
two relays. With these two relays we can connect up to three antennas to the amplifier. The
schematic on the screen shows the state of these relays. Select an antenna ANT-1 to 3 and then
enable or disable the bands for that antenna.

LIMITS

these are the limits of the safety functions:

• max I [A] … If this current is exceeded, the controller goes into the emergency stop state. I also
  recommend the use of the safety switch.
• max. U [V] … If this voltage is exceeded, the controller goes into the emergency stop state.
• max. Temp … If this temperature is exceeded by one of the two temperature sensors, the
  controller goes into the emergency stop state.
• max TX [min] … The controller goes into the emergency stop state if it is keyed on for longer
  than this time.
  
• FAN ON temp … When one of the temperature sensors exceeds this temperature, the FAN
  output is turned on. It will be turned off when the temperature is 4 degrees lower than this
  value. When PWM is selected the fan speed is controlled via the temperature
  
• PTT Delay [ms] … Not implemented in this HW version
  
• max. drive [W] … When this control power is exceeded, the device switches to the emergency
  stop state (an input power - jumper must be installed for this function).
  

CALIB

Calibration of the SWR couplers. The calibration procedure is described in a separate topic.

TOUCHCAL

This screen is used to calibrate the touch sensor of the 7“ display. Use a ballpoint pen with the lead
retracted to touch the screen during calibration. This will give much better results than using your
finger.

SYSTEM1

This screen has several system settings:

• Language … DSP-7 contains currently English and German language.
• Display Reverse … rotates the display 180 degrees. The contrast and readability of the 7
  “display is different from the top or bottom. It is possible to mount the DSP-7 upside down and
  then flip the display with this setting.
• Units … select Celsius or Fahrenheit. The temperature settings in the limits screen alsu use this unit
• DC Voltage Range … this controller has a wide voltage range. In addition to this setting, a
  voltage divider must be connected to the Um input. See the connection description for details.
  
• DC Current Range … this controller has a wide current range. In addition to this setting, the
  shunt resistor can be modified. Details can be found in the connection description and shunt
  settings (see below).
  
• Bands Mode … provides various band ↔ filter bank combinations as described below.
  
• RF Power Range … this controller has a wide RF power range. The power / SWR coupler must of
  course be suitable for the required power. The only requirement is that the coupler produces a
  forward / reverse voltage between 0 and 2.4 volts over the entire range.
  
• Drive Pwr Range … the range for measuring control power if an input SWR coupler is installed.
  
• Shunt [mohms] … Value of shunt resistor used for current measurement.
  

Assignment of bands to filter banks:

This controller has 6 outputs to switch up to 7 filter banks (Bank-1 is selected when no relay is
activated). Four different band → filter bank configurations are available for shortwave amplifiers.
Select this configuration as follows:

Example: When SW Mode-1 is selected and you switch to the 30m band, relay output 3 is activated.

SYSTEM2

• Aux Input Mode: there are four input lines that have alternative functions. Look in the connector
  manual and search for “BAND ROT SWITCH, Alternate Functions”. These connections can be used as an input for a rotary switch to select the filter bank. Or alternatively, they can be used as an additional 4 PTT inputs (required if the automatic transceiver selector is used).
• CI-V Addr.1 deflt: This is the default CI-V address when connecting a single Icom transceiver.
  Set this value to the CI-V address of the transceiver. The baud rate is 4800 Bd.
• CI-V Addr.2 … 4: These additional CI-V addresses are used when the aux input mode is set to
  “PTT 4 input”. By connecting the alternate inputs to the PTTs of up to 4 Icom transceivers,
  DSP-7 automatically uses the CI-V address of the currently active transceiver (required when
  using the automatic transceiver selector).
• System Mode: DSP-7 can be used for two different applications. 1) as a power amplifier
  controller or 2) as a display for a triple power / SWR meter. While the basic functions of the
  DSP-7 are the same in both modes, the display shows different controls optimized for these
  modes.