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Table of Contents
Related Manuals for PRAXSYM DB-12
Summary of Contents for PRAXSYM DB-12
- Page 1 CW Transmitter User’s Manual...
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Page 2: Warranty Statement
Warranty Statement PRAXSYM warrants that all items will be free from defects in material and workmanship under use as specified in this guide for a period of one year from date of delivery. PRAXSYM further agrees to repair or replace, at its discretion, any failure which upon PRAXSYM's inspection appears to be a result of workmanship or material defect. - Page 3 Table of Contents...
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Page 4: Functional Description
AC/DC wall adapter included. 1.2 Functional Description The transmitter will power on to a splash screen with the Praxsym Logo, and immediately proceed to the main operation screen. The previous settings from the last use will be retained. The transmitter will not power on transmitting RF energy, though it may have been powered off previously while transmitting. -
Page 5: Items Supplied
1.3 Items Supplied Item Description CW Transmitter With 6 Internal NiMH AA Batteries 12V 1.5A AC/DC Supply Power Cord USB Cable Flash Drive, Users Manual, Driver Software... - Page 6 1.4 Looking at the Transmitter Item Description Channel 1 Output, N-Type Connector Channel 2 Output, N-Type Connector Battery Charger Status LED Battery Charge Jack USB Port LCD Touchscreen Display Front Panel, Touch Keys...
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Page 7: Operation
2.0 Operation 2.1 Battery Charging The transmitter is fully operational while the batteries are being charged. Charging can occur whether or not the unit is powered on. When “batt low” appears in the battery icon, the battery life is nearing its end. - Page 8 2.2 Using Channel Setups Setups. Setups Each channel, 1 and 2, contain four allow the user to program up to four saved output configurations (frequency, Setups amplitude, and channel spacing) per channel. The can be accessed by repeatedly touching the tabs on the left side of the Channel 1 display, depressing the 1 or 2 number keys, or by choosing Setup...
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Page 9: Scan Mode
2.3 Scan Mode Scan Mode Each channel, 1 and 2, can be independently set to . In Scan Mode Setups , the transmitter cycles through the at an adjustable Scan Mode scan rate. The configurations are accessed through the Channel 1 Setup Channel 2 Setup Main Menu options in the... -
Page 10: Keypad Definition
2.4 Keypad Definition ON/OFF: Turns unit on or off Numerals 0-9: Enter a new frequency, amplitude level or step size, select corresponding menu item choice where applicable Numerals 1&2: From the main screen, pressing 1 or 2 will toggle the LCD between channel 1 and channel 2 set up screens. Pressing 1 while on the channel 1 will cycle between the four setups channel... - Page 11 2.4 Keypad Definition (Continued) Item Description On/Off Numerals 0-9 Select Up/Down Arrows, Plus/Minus Signs Lock/Decimal Menu...
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Page 12: Display Definition
2.5 Display Definition Item Description Toggle between active channel screens by touching the tabs on the left side of the screen, the active channel band is noted at the top. Continuing Setups to touch the tabs will cycle through the channel Frequency, Amplitude, and Step size for both channels may be controlled using the SEL key to change between the three, while the arrow keys make adjustments to the values... -
Page 13: Menu Navigation
2.6 Menu Navigation Pressing the MENU button from the main operation screen brings Main Menu up the . All transmitter settings are available from this MENU menu. Pressing again from this screen returns to the main operation screen. Using the arrow keys will change the highlighted menu option. chooses the highlighted menu option. - Page 14 2.7 Controlling the Transmitter Remotely The transmitter can be controlled by a PC or embedded controller via the USB interface. Procedures in this section also describe control with terminal emulation software on a PC or laptop computer. Install the supplied cable between a USB port on the PC/laptop and the USB port on the transmitter.
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Page 15: Serial Interface Operation
3.0 Serial Interface Operation 3.1 Configuring Tera Term Pro Open the Terminal setup window from the Setup Menu. Select CR+LF for Receive and CR for Transmit. Enable Local Echo. Also within the Setup menu, choose the Serial Port option. Ensure parameters are matched to what settings were configured within the transmitter for communication. - Page 16 Enable/Disable output command. TX=1 turns the output on for the current channel. TX=0 turns the output off for the current channel. If current CH is scanning transmitter will report: DISABLE CHANNEL BEFORE MAKING CHANGE If current CH is armed for scanning but not scanning, transmitter will report: OK.
- Page 17 SCAN_ Start/Stop Scan where: X is 1 or 2 (the physical channel being started or stopped) Y is 1 (Start Scanning) or 0 (Stop Scanning) The addressed channel cannot be currently active, and must have been previously set up for scanning. Sample alerts: DISABLE CHANNEL BEFORE MAKING CHANGE...
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Page 18: Query Commands
QUERY COMMANDS Note: Must enter underscores (_) Returns the current frequency setting in the form XXXX.yyyy (MHz). Example: 1710.0000 Returns the lowest frequency that the currently selected channel can be set in the form XXXX.yyyy (in MHz). See “FR?” for example. Returns the highest frequency that the currently selected channel can be set in the form XXXX.yyyy (in MHz). - Page 19 SCANX? Lists the scan settings for CH X, where X is 1 or 2. Sample Response: OFF DISARMED AB 5 SECS AMN? Returns the minimum output amplitude in the form +/- XX.y (dBm) that the current channel can output. See “AMP?”...
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Page 20: Error Responses
3.3 Error Responses Invalid commands will be acknowledged with an error response. An error response will consist of 4 ASCII bytes followed by a carriage return. The error code consists of the two characters ER followed by a two-character error status code. -
Page 21: Electrical Specifications
4.0 Specifications 4.1 Electrical Specifications 310-010108-014 (N-type) Channel 1 Band 1 frequency 617-652/663-698 MHz Band 2 frequency 698-960 MHz channel spacing 10, 12.5, 30, & 200 kHz, 1.25 MHz Channel 2 Band 1 frequency 1710-2180 MHz Band 2 frequency 2305-2320/2345-2360 MHz Band 3 frequency 2495-2690 MHz channel spacing... -
Page 22: Environmental Specifications
4.1 Electrical Specifications (Continued) 310-010108-011 (N-type) Channel 1 Frequency 136-174 MHz channel spacing 12.5 kHz, 25 kHz Channel 2 Frequency 396-512 MHz channel spacing 12.5 kHz, 25 kHz Output Power -10 to +12 dBm adjustable 0.1 dBm Harmonics < -50dBc 4.2 Environmental Specifications Temperature Range: 0-50°... - Page 23 Notes...
- Page 24 P R A X S Y M 900-000015-001 Rev B...
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