PST Manual 900-000006-002 rev F booklet.pub
Contents
1. lt CR gt ST lt CR gt AMP lt CR gt AMN lt CR gt AMX lt CR gt LD lt CR gt VR lt CR gt VD lt CR gt BV lt CR gt Returns the current frequency setting in the form XXXX yyyy MHz Example 950 0000 Returns the lowest frequency that the currently se lected channel can be set in the form XXXX yyyy in MHz See FR for example Returns the highest frequency that the currently se lected channel can be set in the form XXXX yyyy in MHz See FR for example Returns the synthesizer step size setting in the form X yyyy MHz Example 0 0100 Returns the current output amplitude in the form XX y dBm for the current channel Example 5 0 Returns the minimum output amplitude in the form XX y dBm that the current channel can output See AMP for example Returns the maximum output amplitude in the form XX y dBm that the current channel can output See AMP for example Returns 0 if the synthesizer for the current channel is unlocked Returns 1 if the synthesizer for the current channel is locked Returns software version of the receiver board in the form X yy Example 0 93 Returns software version of the keypad display board in the form X yy Example 2 07 Returns the battery voltage level BV XX y Example BV 73 Page 13 PRAXSYM 3 3 Error Responses Invalid commands will be acknowledged with an error re sponse An error2. response will consist of 4 ASCII bytes fol lowed by a carriage return The error code consists of the two characters ER followed by a two character error status code ERIC lt CR gt Invalid command The command was not recognized because it was not in the proper format ERIN lt CR gt Invalid number or range The data included in the previous command was invalid or out of range Page 14 PRACTICAL SYSTEMS TRANSMITTER 4 0 Specifications 4 1 Electrical Specifications 310 010108 006 N type Channel 1 Frequency channel spacing Channel 2 Frequency channel spacing Output Power adjustable Harmonics 310 010108 008 N t Channel 1 Frequency channel spacing Channel 2 Frequency channel spacing Output Power adjustable Harmonics 310 010108 011 N type Channel 1 Frequency channel spacing Channel 2 Frequency channel spacing Output Power adjustable Harmonics 2110 2170 MHz 250 kHz 1 25 MHz 5 MHz steps 1710 1880 MHz 250 kHz 1 25 MHz 5 MHz steps 10 to 10 dBm 0 1 dBm lt 60dBc e amp 310 010108 010 SMA 698 960 MHz 10 12 5 30 amp 200 kHz 1 25 MHz 1710 2170 MHz 30 kHz 200 kHz 1 25 MHz 10 to 12 dBm 0 1 dBm lt 60dBc 136 174 MHz 12 5 kHz 25 kHz 396 512 MHz 12 5 kHz 25 kHz 10 to 12 dBm 0 1 dBm lt 50dBc Page 15 PRAXSYM 4 2 Environmental Specifications Temperature Range 0 50 C 4 3 Mechanical Specifications RF Connectors SMA or N t
3. to eight hours of use Also the battery icon on the display will be completely darkened Leaving the charger connected to the PST will initiate a new charge cycle once the batteries have discharged This will occur continually Though designed for many recharge cycles the batteries are user re placeable Use only Energizer NH15 AA NiMH rechargeable batter ies as supplied originally Other AA battery types such as Alkaline or Lithium lon may result in damage to the transmitter Page 2 PRACTICAL SYSTEMS TRANSMITTER 2 2 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 or 2 will toggle the LCD between channel 1 and channel 2 set up screens Press ing 1 while on the channel 1 set up screen will toggle the channel 1 output between RF on and RF off Likewise for channel 2 SEL Select Toggles between frequency amplitude and step size on the main screen or chooses highlighted menu option in applica ble screens Also the same as the OK touch screen button UP DOWN ARROW S Adjust frequency amplitude or step size of highlighted channel in the main screen using the arrows Adjust ments to frequency are made in the set step size In applicable sub menus the arrows control selection of menu options PLUS MINUS SIGNS Change to a positive or negative
4. CTICAL SYSTEMS TRANSMITTER 1 0 Introduction 1 1 Overview The PST a portable CW test source capable of transmitting test sig nals in two bands simultaneously The output from each band can be enabled independently and level can be adjusted between 10 dBm 12 dBm 0 1 dB steps Different transmitter models be configured to cover VHF UHF Cellular GSM850 GSM900 iDEN PCS GSM1800 GSM1900 UMTS bands The transmitter frequency and output level for each channel can be set from the touch keys on the front panel The transmitter status can easily be monitored from the backlit LCD display The touch screen on the display should be cared for properly The transmitter also contains a USB interface enabling the user to control the trans mitter remotely The transmitter can be powered using the internal 6 AA recharge able batteries for 6 to 8 hours of continuous operation or from the AC DC wall adapter included 1 2 Functional Description The PST 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 The PST may safely be powered off in any state using the ON OFF button The PST is configured with channel spacing of many common wire less standards Once the channel spacing is selec
5. Hardware Device Drivers device driver is a software program that enables a hardware device to work with an operating system Leave on the default setting and click Next Found New Hardware Wizard Locate Driver Files Where do you want Windows to search for driver files Put your USB driver CD ROM into your computer CD drive Click Next Page 10 PRACTICAL SYSTEMS TRANSMITTER Found New Hardware Wizard Completing the Found New Hardware Wizard gt USB Serial Port Windows has finished installing the software for this device To close this wizard click Finish Click Finish Action view 9 am 10 1 SPARKS Computer Disk drives 23 DVD CD ROM drives 3 Floppy disk controllers You can now go to the 5 Display adapters Device Manager and verify the driver was in Floppy disk drives stalled successfully Also Human Interface Devices note the COM number IDE ATA ATAPI controllers Keyboards designated for the TA Mice and other pointing devices H 3 USB drivers Monitors EF Network adapters BY Ports COM amp LPT 7 Communications Port COMI Communications Port COM2 7 ECP Printer Port LPT1 7 gt Radio Receivers SCSI and RAID controllers EQ Sound video and game controllers 5 System devices Universal Serial Bus controllers Page 11 PRAXSYM 3 0 Ser
6. P PRACTICAL SYSTEMS ENGINEERING PRACTICAL SYSTEMS TRANSMITTER Praxsym 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 inspec tion appears to be a result of workmanship or material defect In no case shall PRAXSYM s liability for breach of warranty exceed the pur chase price of the items in question PRAXSYM s liability on any claim of any kind for any loss connected with or resulting from the use of performance or breach thereof installation inspection operation or use of any equipment furnished by PRAXSYM shall in no case exceed the purchase price of the goods which give rise to the claim Praxsym Inc P O Box 369 Fisher IL 61843 Phone 217 897 1744 Fax 217 897 6388 www praxsym com Page i PRAXSYM TABLE OF CONTENTS 1 0 Introduction 1 1 Overview 1 2 Functional Description 2 0 Operation 2 1 Battery Charging 2 2 Keypad Definition 2 3 Display Definition 2 4 Menu Navigation 2 5 Controlling the PST Remotely 2 6 Installing the USB Serial Driver 3 0 Serial Interface Operation 3 1 Configuring Tera Term Pro 3 2 Commands 3 3 Error Messages 4 0 Specifications 4 1 Electrical Specifications 4 2 Environmental Specifications 4 3 Mechanical Specifications Page ii PRA
7. RACTICAL SYSTEMS TRANSMITTER 2 4 Menu Navigation Pressing the MENU button from the main operation screen brings up the Main Menu All transmitter settings are available from this menu Pressing MENU again from this screen returns to the main operation screen Using the arrow keys will change the highlighted menu option SEL chooses the highlighted menu option Pressing the corre sponding menu option on the keypad will also select menu op tions directly The Channel Setup options allow for setting of Frequency Ampli tude and Step Size Channel Information displaying minimum and maximum values for frequency and RF power output are also avail able Display Settings contains user selectable parameters for the dura tion of Backlight Timeout and also Backlight Level brightness System Settings contains options to change Baud Rate or Disable Enable Transmitting when the Frequency is changed If Disable On New RF is ON the PST will not transmit when a new fre quency is entered If a new step size does not require change of frequency the PST will continue transmitting Pressing the MENU button while in any menu screen will back track through the menu hierarchy Page 7 PRAXSYM 2 5 Controlling the PST Remotely The PST 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 suppli
8. amplitude value LOCK DECIMAL POINT Locks the keypad from any unintentional changes Indication of lock status is on the display during the main screen only The keypad may be locked and unlocked from the main operation screen only The Decimal Point is for use when numerically entering a new frequency amplitude or step size MENU This brings up the Main Menu screen from the main opera tion screen returns to main screen from Main Menu and back tracks through menus within sub menu screens Page 3 PRAXSYM Battery Charger jack amp status LED 695 968 MHz USB Port _ at ae Stee 1 2 RF_ONFOFF PRA SYM Page 4 PRACTICAL SYSTEMS TRANSMITTER 2 3 Display Definition The tabs may be toggled between Frequency Amplitude and Step with the touch screen with the size for both channels may be active channel band noted at the top controlled using SEL to change between the three while the arrow keys make adjustments to the values 695 964 MHz 294 BAR HHz mel 16 04dEm Steps 16 kHz AL Touch screen control Numbers present Animation will run of RF transmission indicate channels when either or both which are transmitting channels are transmitting Page 5 PRAXSYM Kers jy Frea C Lock status of Indicates setting Battery Level the keypad is which may be indicator Indicated by adjusted using the the padlock icon arrow keys Page 6 P
9. ed cable between a USB port on the PC laptop and the USB port on the transmitter Start the terminal emulation software and setup with the fol lowing parameters Baud rate 9600 38400 115200 user selectable Data bits 8 Stop bits 1 Parity none Com port assigned by PC operating system Local echo ON Select line feed LF after carriage return CR when receiving The settings may be found various places depending on the terminal emulation software used Generally check the Serial Port and Terminal configuration menus Power up the Transmitter by depressing the ON OFF button The transmitter frequency is stored in non volatile memory When power is applied to the transmitter it will return to the last entered frequency Page 8 PRACTICAL SYSTEMS TRANSMITTER 2 5 Controlling the PST Remotely continued Set up the transmitter following the recommended sequence Set the target channel CH X lt CR gt Set the frequency in MHz FR XXXX yyyy lt CR gt See Section 3 3 for a complete listing of all error responses 2 6 Installing the USB Serial Driver Plug the PST into an available USB port with the supplied cable Found New Hardware Wizard Welcome to the Found New Hardware Wizard This wizard helps you install a device driver for a hardware device To continue click Next lt Back Cancel Click Next Page 9 PRAXSYM Found New Hardware Wizard Install
10. ial 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 pa rameters are matched to what settings were configured within the transmitter for communication Tera Term must be closed and the USB cable removed before manually powering down the transmitter 3 2 Commands Commands may be sent in lower or upper case lt CR gt repre sents ENTER SET COMMANDS The response to successfully executed SET commands is the mes sage OK lt CR gt FR XXXX yyyy lt CR gt Sets output frequency in MHz The Inclusion of the decimal point and digits to the right of the decimal are optional CH X lt CR gt Sets the channel you wish to configure X 1 or 2 While the display will not change to reflect selection of a different channel with a serial com manded channel change control of the serially selected channel will function properly TX X lt CR gt Enable Disable output command TX 1 turns the output on for the current channel TX 0 turns the output off for the current channel AMP XX y lt CR gt Sets the output amplitude for the current channel ST X yyyy lt CR gt Sets the channel spacing in MHz Example ST 0 0125 12 5 kHz Channel Spacing Page 12 PRACTICAL SYSTEMS TRANSMITTER QUERY COMMANDS FR lt CR gt MN lt CR gt MX
11. ted within the Channel Setup menu the step size may be adjusted from the main operation screen This function makes stepping across multiple chan nels quick and easy during testing Page 1 PRAXSYM 2 0 Operation 2 1 Battery Charging The PST 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 The transmitter will shut down soon Connect the AC DC adapter 12 V 1 5 A to the unit s CHARGE jack Plug the adapter into a wall outlet An internal battery charger will control and terminate the charging of the 6 NiMH cells within each unit When beginning a charge cycle with batteries which have been completely depleted allow about two and a half hours for a full charge to be restored A top off charge is recommended immediately before use for maximum battery life A flashing red LED indicates a precharge state Usually it will flash for a few moments and then enter a fast charge state This precharge state may last up to a few hours with drained batteries and indefi nitely if one or more cells have failed cells must be replaced in the latter case When the LED turns green the batteries are nearly full and enter trickle charge mode Continuing to charge when the LED turns green for approximately an hour will give maximum battery life Fully charged batteries will give six
12. ype Display Transflective 128x64 Black White White LED Backlight Keypad Sixteen keys see definition on page 3 Enclosure aluminum Power Source 6 AA cells rechargeable Size 7 x 5 x 2 75 excluding RF connectors Weight 4 Ibs Notes Page 16 PRAXSYM Version 042611 900 000006 002 revF
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