manualshive.com logo in svg

Aeroflex NAV 2000R, Operation Manual, Page: 3 / 95

Share
Download
Aeroflex NAV 2000R Operation Manual Download Page 3

 

Aeroflex Operation Manual 

 
 

REVISION HISTORY BY DRAWING NUMBER 

 
 
MANUAL: NAV 2000R Signal Generator 
 
REVISION: 0 – July 26, 2007 

 
 

 

 

   REV.   

 

 

 

 

                   REV. 

DRAWING 

NO. 

 _LEVEL   DRAWING NO.  

     LEVEL

 
Safety and Regulatory  00 
 
Table of Contents 

00 

 

 
Section I 

 

00 

Section II 

 

00 

Section III 

 

00 

Section IV 

 

00 

Section V 

 

00 

 
Appendix A 

 

00 

 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

 

              

 

 

DRAWING REVISION HISTORY – NAV 2000R – JULY 26, 2007 – PAGE 1 OF 1 

Summary of Contents for NAV 2000R

Page 1: ...R 15 CFR 730 774 It cannot be transferred to any foreign third party without the specific prior approval of the U S Department of Commerce Bureau of Industry and Security BIS Violations of these regul...

Page 2: ...ct all power sources signal sources and loads connected to the unit e If maintenance or service must be performed with power applied take precautions against accidental disconnection of equipment comp...

Page 3: ...0R Signal Generator REVISION 0 July 26 2007 REV REV DRAWING NO _LEVEL DRAWING NO LEVEL Safety and Regulatory 00 Table of Contents 00 Section I 00 Section II 00 Section III 00 Section IV 00 Section V 0...

Page 4: ......

Page 5: ...d or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met Caution refer to acco...

Page 6: ...tes that the power line switch is OFF Standby This symbol indicates that the power line switch is in STANDBY Caution risk of electric shock Danger high voltage Caution hot surface Danger high temperat...

Page 7: ...nnel or damage to the equipment To prevent damage never apply solvents to the equipment housing For cleaning wipe the equipment with a cloth that is lightly dampened with water mild detergent or alcoh...

Page 8: ...ains plug Ensure the power cord is easily accessible and removable in the event of an emergency which requires immediate disconnection 5 7 3 6 2 4 1 1 Appliance coupler 2 Appliance inlet 3 Detachable...

Page 9: ...USER INTERFACE 3 3 3 5 1 NAV 2000R MODES 3 3 3 5 2 MENU LAYOUT DESCRIPTION 3 3 3 5 3 GETTING AROUND IN THE MENUS 3 4 3 5 4 CHANGING FIELD DATA ALPHANUMERIC 3 5 3 5 4 1 EDITING NUMERIC OR ALPHANUMERIC...

Page 10: ...ATOR MODULE DESCRIPTION 4 5 4 3 9 MODULATOR GENERAL OPERATIONAL DESCRIPTION 4 6 4 3 10 AUDIO BOARD OPERATION 4 6 4 3 11 RF MODULATOR BOARD OPERATION 4 7 4 3 12 PROGRAMMABLE STEP ATTENUATOR CIRCUIT 4 8...

Page 11: ...PLIFIER 4 19 4 5 18 RF LEVELING AMPLIFIER 4 20 4 5 19 FIXED GAIN AMPLIFIERS 4 20 4 5 20 DETECTOR 4 20 4 5 21 LPF INTEGRATOR 4 21 4 5 22 SCALING RF LEVEL SET 4 21 4 5 23 RF HIGH LOW INDICATION 4 22 4 6...

Page 12: ...on the rear panel inside the Appliance Inlet A1FL1 1 disconnect the appliance coupler 2 With a flat blade screwdriver or similar tool open the cover 3 With a flat blade screwdriver or similar tool rem...

Page 13: ...10 MHZ OUT A5A1J7 and 10 MHZ IN A5A1J6 terminals ports use M17 84 RG223 double shielded coaxial cable or equivalent properly terminated to BNC connectors 2 It is recommended that the cable connecting...

Page 14: ...osition 5 Check that the voltage selected appears in the voltage selection window when the cover is snapped into place Max RF OUTPUT Safe Input Power 50 W MOD STATUS 7 50 W 50 V dc TA 200 mW 0 V dc RF...

Page 15: ...Hz vs frequency Hz single side band phase noise dBc Hz vs frequency Hz 0 FIGURE 1 1 TYPICAL GRAPH FIGURES Residual FM 0 15 56 25 MHz 25 Hz at 0 05 15 kHz 56 25 112 50 MHz 10 Hz Post Detection 112 50 2...

Page 16: ...dio 0 1 THD 90 150 Hz phase Fixed 0 0 0 01 degree Variable Resolution 0 01 degree Variable Accuracy 0 05 degrees Amplitude modulation Range per tone total mod not to exceed 99 90 and 150 Hz Default 20...

Page 17: ...M Variable range 0 800 in 0 001 increments Total system error audio modulation 0 0003 0 DDM 0 0012 0 045 DDM 0 0021 0 091 DDM 0 0038 0 175 DDM 0 0083 0 400 DDM ADF Modulation tone Preset 1000 Hz Varia...

Page 18: ...Modulation bandwidth 10 Hz to 22 kHz Input level 1 V peak Morse Code ident Programmable in VOR Localizer or ADF mode Max Length 6 characters Rate programmable Dot Dash spacing times individually prog...

Page 19: ...PMENT ITEM DESCRIPTION TYPE 1 Extender Board JPN 20 5760 00 1 7 SERVICE INFORMATION If you have any questions regarding service you may contact the factory at the address listed below Aeroflex 400 New...

Page 20: ...ng shipment If a claim for damage is to be filed save the shipping container to substantiate the claim When all the equipment has been unpacked return all the packing material to the container for fut...

Page 21: ...remote user interface The local user interface uses the front panel keypads and display The remote interface uses a General Purpose Interface Bus GPIB Throughout this manual GPIB shall be used to mean...

Page 22: ...he bottom left corner of the front panel Upon power up the NAV 2000R will perform a self test and when complete will indicate self test results on the display 3 5 LOCAL USER INTERFACE Local operation...

Page 23: ...o composite output signals These modes VORa and LOCa are accessed by selecting the audio control mode bubble from within their 1st page The SELCAL mode is accessed from the SELCAL bubble in PAGE 1 of...

Page 24: ...a remote application program has commanded the NAV 2000R via the GPIB bus During remote operation all front panel keyboard controls are locked out The CLR LCL key the only key recognized during remot...

Page 25: ...eing edited The left and right arrow keys may be used to force the cursor to the character just left or right of the current cursor position This allows the user to alter any digit or character within...

Page 26: ...tus line If the data entered into the numeric field is greater than the maximum acceptable upper limit the field will be set to its upper limit and the message VALUE LIMITED TO MAXIMUM will appear bri...

Page 27: ...ovolts and millivolt numbers may be entered using the uV and mV keys STO RCL respectively The default displayed units normally dBm may be changed by pressing the SEL key and then pressing either the u...

Page 28: ...ation percents to total 99 9960 Hz FREQUENCY Programs the 9960 Hz center frequency The user may specify a frequency from within the 7968 0 Hz to 11952 0 Hz range with a resolution of 0 1 Hz Any freque...

Page 29: ...er may be entered either at the beginning or end to allow entry of character strings shorter than six WORD RATE Allows the programming of the repetition rate at which the morse code identifier is tran...

Page 30: ...his field is a discrete toggle type field and the default reference is set to FROM 30 Hz MOD Specifies whether the 30 Hz signal is to be modulated The field toggles between ON and OFF whenever the SEL...

Page 31: ...ds are switched The default value is LEFT 150 FREQ MHz This field allows the RF frequency to be programmed The RF frequency may be programmed in 0 00001 MHz steps within the NAV 2000R frequency range...

Page 32: ...e the system limits the 150 Hz modulation field to a value that forces all modulation percents to total 99 A current value for the DDM field will be computed and the field will be updated for a newly...

Page 33: ...Morse code dot time in milliseconds The valid range is from 50 ms to 250 ms in 1 ms steps The default value is 150 ms DASH TIME Allows programming of Morse code dash time in milliseconds The valid ran...

Page 34: ...ields are switched The default value is LEFT 150 90 Hz MOD Specifies whether the 90 Hz signal is to be modulated The field toggles between ON and OFF whenever the SEL key is pressed while the field is...

Page 35: ...ighlighted This field allows the paired ILS frequency to be used to change the actual Glideslope frequency being generated With the ILS PAIR window displayed only paired frequencies of 108 1 to 111 95...

Page 36: ...entage causes the total modulation to exceed 99 In this case the system limits the 150 Hz modulation percentage so that the total modulation percentage is 99 A current value for the DDM field will be...

Page 37: ...nt modulation value greater than 99 IDENT MODE Allows the user to specify how the identification tone is to be modulated This is a toggle type field containing three valid options OFF CODE AND TONE A...

Page 38: ...VEL This field allows the RF level to be programmed The RF level may be programmed with 1 10th dBm resolution using either dBm or uV mV units DBm numbers are entered using the ENT key Microvolts and m...

Page 39: ...y be entered using the uV and mV keys STO RCL respectively The default displayed units normally dBm may be changed by pressing the SEL key and then pressing either the uV mV or dBm keys FREQ MHz This...

Page 40: ...lt displayed units normally dBm may be changed by pressing the SEL key and then pressing either the uV mV or dBm keys FREQ MHz This field allows the RF frequency to be programmed CHANNEL This field st...

Page 41: ...field may be edited to produce non standard frequencies PULSE 2 CODE Allows modification to the PULSE 2 TONE 1 and TONE 2 frequencies The field uses the alphanumeric field entry The two characters in...

Page 42: ...ions are discussed in this section 0 EXIT UTILITY MENU 1 DISPLAY MODIFY GPIB ADDRESS 2 SELECT EXT MODULATION MODE 3 SET EXT MOD RELAY On Off 4 SELECT CALIBRATION MODE 5 DISPLAY SYSTEM STATUS 6 EXECUTE...

Page 43: ...ered in detail in Section 3 5 16 DISPLAY SYSTEM STATUS This option displays the power on self test results and the current operational status of the NAV 2000R It can be used to ensure proper operation...

Page 44: ...lows a visual test of the display The test turns on all of the display s pixels A message PRESS KEY TO STOP is moved around in the display in random places Observe the display to determine if all of t...

Page 45: ...current page and field selector positions This means that all entries of the six primary modes VOR LOC G S ADF MKR and COM and the secondary modes EMM VORa and LOCa are stored Current NAV 2000R condit...

Page 46: ...ired However if the controller requests the NAV 2000R to return multiple information the last requested information will be the only data available After the GPIB controller sends a command string to...

Page 47: ...ion of the hexadecimal number indicate BIT 0 Fatal error exists Use FERR for type BIT 1 HOST CPU operating from boot memory NAV 2000R Operating software not running BIT 2 Remote only operation selecte...

Page 48: ...OST ROM FAILURE BIT 1 HOST RAM FAILURE BIT 2 HOST FLASH EPROM FAILURE BIT 3 HOST SETUPS REGISTER FAILURE BATTERY RAM BIT 4 HOST NONVOLATILE RAM FAILURE BATTERY RAM BIT 5 Not defined BIT 6 Not defined...

Page 49: ...The range allowed is from 0 150 to 450 000 MHz COMMAND SET MARKER BEACON MODE FORMAT MKR MODE AAAAA This command sets the current marker beacon mode of operation The argument value must be any of the...

Page 50: ...of ASCII characters allowed is six and any other characters will be truncated COMMAND DOT TIME LENGTH FORMAT DOT TIME DDD This command changes the period of time defining a Morse code DOT Range is fr...

Page 51: ...ent value is specified in Hz with 0 1 Hz steps COMMAND SET 90 150 Hz PHASE FORMAT PHASE DDD DD This command deviates the 90 Hz and 150 Hz phase relationship These signals are only generated during the...

Page 52: ...resolution COMMAND SET 90 Hz MODULATION PERCENTAGE FORMAT 90HZ MOD DD DD FORMAT LOCa mode only 90HZ MOD AAA This command sets the 90 Hz modulation percentage The 90 Hz signal is produced during LOC a...

Page 53: ...communications COM mode of operation The programmable resolution is 0 01 percent COMMAND SET TOTAL PERCENT OF MODULATION FORMAT TOTAL MOD DD DD This command allows the total percent of modulation to b...

Page 54: ...TIVE CALLING ACTIVE INACTIVE FORMAT SCL INIT AAAAAAAA This command initiates the transmission of the two Selective Calling pulses using the current settings when ACTIVE is in the data field When INACT...

Page 55: ...to 9999 9 Hz COMMAND SET PULSE 1 TONE 2 FREQUENCY FORMAT SCL 1 TONE 2 DDDD D This command allows changing the standard frequency set with SCL 1 CODE command for TONE 2 of PULSE 1 for the Selective Cal...

Page 56: ...y be summed with internally generated audio or may be controlled separately within the EMM mode External audio is AC coupled with a flat frequency response from 10 Hz through 22 kHz The external audio...

Page 57: ...a key is depressed after debouncing its row and column are latched on the keypad board Additionally the row and column is decoded to determine whether the depressed key is from the upper or lower bank...

Page 58: ...o 127 dBm The leveling loop is temperature and frequency response compensated 4 3 2 FREQUENCY The RF frequency coverage provided is 15 MHz to 450 MHz This is generated within the synthesizer module Th...

Page 59: ...ns equipment The percent modulation is set by the system controller processor using the attenuator on the audio board The sum of the two tones is limited to 99 Then on the RF Modulator Board the audio...

Page 60: ...a from the DSP processor is sent to a 8 times oversampling digital filter whose output rate is 8 times higher than the input sample rate The digital filter adds additional reconstruction points accord...

Page 61: ...fm COS wmti AvSIN wvti AiSIN witi where Ac Amplitude of the carrier signal Av Amplitude of the reference signal Ai Amplitude of the ident signal wcti Instantaneous phase of the carrier wmti Instantane...

Page 62: ...RF modulator board and a programmable step attenuator The modulation of a CW carrier is achieved by applying the CW signal to the RF modulator board where it is modulated by signals appropriately con...

Page 63: ...de some self testing during normal operation and during power on self test 4 3 10 AUDIO BOARD OPERATION The audio board accepts a fixed level audio signal The level of this signal is adjusted and summ...

Page 64: ...he wide linear dynamic range of the gain control input the DC component of the audio signal is not highly critical However the AC component of the audio signal applied to the VGA must be calibrated ve...

Page 65: ...cussed above The LPF Integrator circuitry filters and integrates the detector output to determine its average DC level This signal is an input to the RF leveling output leveling loop In the Scaling RF...

Page 66: ...700 kHz plus or minus 1 2 kHz with millihertz of resolution The output of the DAC is passed through a 1 MHz low pass filter and then to a mixer Here it is mixed with the 10 MHz to produce 10 7 MHz pl...

Page 67: ...n VCO frequency range The output of each VCO is combined buffered and split Only one of the four VCOs operate at one time The outputs are split three ways to the PLL buffer and two to an output buffer...

Page 68: ...ram to verify it The DSP program is then transferred to the DSP RAM Upon the CPU releasing the DSP reset the DSP processor reads calculates and compares a stored checksum with the calculated checksum...

Page 69: ...constants are some of the items stored within the battery backed RAM The non volatile memory module U14 is an integrated battery backed up static RAM module If for whatever reason the battery RAM modu...

Page 70: ...d from the front panel keyboard are routed through the mother board Power supply voltages are connected to the mother board at terminal block TB1 These voltages are 15Vdc 5 2Vdc and 12Vdc The 5 2Vdc v...

Page 71: ...ddress lines five additional address lines address latch enable a direction line read and write four request lines and a bus granted line The CPU board controls all bus transactions When the CPU board...

Page 72: ...and data memory RAM after booting is completed The 14 bit DSP address bus is buffered by U9 and U10 and sent to connector J1 to be shared by the CPU board The middle 8 bits of the DSP data bus is buf...

Page 73: ...nt line returns an active low bus grant signal after a short time indicating that the module is ready for reads or writes to its valid addresses The bus grant is open collector as it is for all module...

Page 74: ...e at a low state The RC time constants in both sections of retriggerable one shot U14 are sufficiently long that the outputs will remain triggered at the lowest anticipated modulating frequency if sig...

Page 75: ...modulation performance It is used by the Detected Audio Hi Lo Indication Audio High Low Indication RF Level High Low Indication RF level set Modulation Centering Calibration and Detector Bias networks...

Page 76: ...DSP or an external source module The audio modulation signal is conditioned by the audio board to achieve RF modulation The leveling loop ensures that the output of the RF Modulator Board is always a...

Page 77: ...the input CW RF carrier Although the RF is not completely cut off it is adequately attenuated Decreasing the DC bias point of the modulating signal would be to use less of the linear dynamic range of...

Page 78: ...this amplifier will have a nominal carrier level of about 6 dBm At the output of the second Fixed Gain Amplifier a small portion of the RF power is sent to the Detector and the main power path is att...

Page 79: ...detectors voltage RF level is calibrated by R39 Minor detector frequency response corrections are accomplished by software which adjusts the voltage reference by means of the audio board At output fr...

Page 80: ...the NAV2000R main CPU is accomplished by means of RAM U2 This memory may be read or written either by the board microprocessor U1 or by means of the NAV 2000R system buss This access is time multiple...

Page 81: ...ference frequency for the MAIN PLL on the RF OUTPUT board The synthesizer frequency standard is the Temperature Compensated Voltage Controlled crystal Oscillator TCVCXO Y1 The output of this TCVCXO is...

Page 82: ...r the PIN diode switch CR5 Diodes CR14 and CR15 and transistor Q27 logic selects routing to the PIN diode switch only when either path of CR5 is selected Otherwise the path to the dividers is selected...

Page 83: ...Os and a common output buffer amplifier Each VCO covers a portion of this tuning range The tuning range of each VCO is as follows VCO1 380 to 456 25 MHz VCO2 320 to 380 MHz VCO3 275 to 320 MHz VCO4 22...

Page 84: ...01 s control pin thereby closing the path between the NAV 2000R output stage and the unit under test U1 compares the voltage from the detector circuit composed of R102 CR103 R101 AND C101 to a 2V refe...

Page 85: ...1 BILLS OF MATERIALS ASSEMBLY DRAWINGS AND SCHEMATICS To assist in the maintenance of the NAV 2000R Signal Generator Bills of Materials Assembly Drawings Schematics and Test Procedures are included i...

Page 86: ...EVEL Command RF LEVEL dBm Values 127 dBm to 0 dBm uV Values 100 uV to 890 uV to nearest 1 dBm mV Values 1 00 mV to 224 mV to nearest 1 dBm Default 127 0 dBm AUDIO LEVEL Command AUDIO LEVEL Values 0 to...

Page 87: ...PERCENT MODULATION Command 1020HZ MOD Values 0 to 99 0 01 steps Default 00 00 TOTAL PERCENT MODULATION Command TOTAL MOD Values 0 to 99 0 01 steps Default 60 00 30 Hz FREQUENCY Command 30HZ Values 20...

Page 88: ...ommand CHAR SPACE Values 150 mS to 750 mS 1 mS steps Default 450 mS WORD RATE Command WORD RATE Values 1 0 to 65 0 seconds 1 second steps Default 30 0 seconds VORa AUDIO LEVEL Command AUDIO LEVEL Valu...

Page 89: ...DE SELECTION Command MODE LOCa Values n a Default n a 90 Hz PERCENT MODULATION Command 90HZ MOD Values 0 00 to 40 0 0 01 steps Default 20 00 150 Hz PERCENT MODULATION Command 150HZ MOD Values 0 00 to...

Page 90: ...FF IDENTIFICATION CODE Command IDENT CODE Values 6 characters of A thru Z 0 thru 9 Default JCAIR DOT TIME Command DOT TIME Values 50 mS to 250 mS 1 mS steps Default 150 mS DASH TIME Command DASH TIME...

Page 91: ...Values ON OFF Default ON 150 Hz PERCENT MODULATION Command 150HZ MOD Values ON OFF Default ON GLIDESLOPE RF LEVEL Command RF LEVEL dBm Values 127 dBm to 0 dBm uV Values 100 uV to 890 uV to nearest 1...

Page 92: ...s Default 150 0 Hz 90 150 Hz PHASE SHIFT Command PHASE Values 0 to 359 99 degrees 0 01 degrees Default 0 ADF RF LEVEL Command RF LEVEL dBm Values 127 dBm to 0 0 dBm uV Values 100 uV to 890 uV to neare...

Page 93: ...teps Default 95 00 MODULATION FREQUENCY Command MKR FREQ Values 10 Hz to 18000 0 Hz 0 1 Hz steps outer Default 400 0 Hz pulsed 2 dashes second middle Default 1300 0 Hz Pulsed 95 dot dash minute inner...

Page 94: ...mV Values 1 00 mV to 224 mV to nearest 1 dBm Default 127 0 dBm RF ON OFF Command SCL RF KEY Values ON OFF Default OFF SELECTIVE CALLING INITIATE Command SCL INIT Values ACTIVE INACTIVE Default INACTIV...

Page 95: ...Command SCL 2 TONE 2 Values 100 to 9999 9 Hz 0 1 Hz steps PULSE 1 TIME Command SCL 1 TIME Values 0 to 2 000 S 0 001 S steps Default 1 S PULSE 2 TIME Command SCL 2 TIME Values 0 to 2 000 S 0 001 S ste...

Reviews:

No comments