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Ramsey Electronics COM3010 User Manual

Manual is about: SERVICE MONITOR

Summary of COM3010

  • Page 1

    1 user guide january, 2005 v1.20.18 com3010 service monitor copyright ramsey electronics, inc. 2005, all rights reserved property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 2

    2 table of contents 1.00 introduction .....................................................................................................................5 • 1.01 opening the box.......................................................................................................6 1.01.01 checking...

  • Page 3

    3 table of contents 3.00 typical test procedures ............................................................................................ 32 3.10 transmitter tests • 3.10.01 transmit power, frequency, and modulation measurement............. 34 • 3.10.02 power measurements ..........................

  • Page 4

    4 table of contents 6.50.07 various mode options............................................................................ 92 7.00 appendix • appendix a: button reference chart....................................................................... 94 • appendix b: cts tone frequency list ............

  • Page 5: 1.00 Introduction

    5 1.00 introduction property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 6

    6 introduction 1.01 opening the box 1.01.01 checking contents included with the com3010 service monitor: 1 ac power cord 1 pretested 3 foot bnc to bnc cable 1 bnc whip antenna 1 operator’s manual 1.01.02 plugging in the battery before powering up the com3010 the battery pack should be plugged into t...

  • Page 7

    7 introduction adding batteries all three batteries are internally connected in parallel. If you are adding another battery pack to an existing unit, discharge the already installed batteries fully by leaving the com3010 on until it powers itself off. Only then it is safe to add the new battery pack...

  • Page 8

    8 introduction 1.02 overview 1.02.01 front panel inputs, outputs, and controls a. Receive in jack the receive in jack is used to receive signals using a whip antenna, cable, or a probe. Typi- cally a x1 probe is used since a x10 attenuator is not matched for 50 ohms. The receive in is also the frequ...

  • Page 9

    9 introduction and tone generation of the com3010 is desired. This input can be set to a wide range of sig- nal levels as the built-in agc will change the gain to get a very specific level before modulat- ing the rf out. This input range should be kept between 50mv pk/pk to 5v pk/pk. When you are us...

  • Page 10

    10 introduction 1.02.02 rear panel connections j. -30db output the power meter portion of the com3010 uses a 100w 30db attenuator to dissipate power on the heatsink on the back of the unit. The 30db attenuated output is provided as a convenience to allow safe connection of an external spectrum analy...

  • Page 11

    11 introduction allows unit to be placed upright and rest on the rear panel. R. Battery input jacks receptacles for connecting battery packs. These can also be used to connect an external dc supply. See the battery information section for more details. S. Battery pack support rails t. High-power att...

  • Page 12

    12 introduction 1.02.03 field selection and entry with one exception the generate and receive displays are laid out in the same four quad- rant format with each field’s (quadrants) access key remaining the same. Generate screen: field 1 is accessed through the generate key. Field 2 is accessed throu...

  • Page 13: 2.00 Basic Operation

    13 2.00 basic operation property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 14

    14 basic operation 2.01 generating a frequency the frequency range of the generator is 100 khz to 1 ghz in 1 hz steps. To enter a new generator frequency, press the generate key. The “ ft ” icon will flash. Enter the frequency desired by using the numerical keypad. Use either the mhz/-dbm or khz/mv ...

  • Page 15

    15 basic operation 2.03 setting generator level rf level can be entered in either the dbm or volts scale. The range is 0 dbm (223 mv) to -140 dbm (0.022uv) in 0.1 db steps. To enter the level press the level key. The “ l ” icon will flash. Enter the level using the keypad, then press your desired un...

  • Page 16

    16 basic operation 2.05 muting the generator to mute the generator at any time, press shift then mhz/-dbm or end with any scal- ing key. This sets the generator level to – 140dbm as well as setting the generator to its lowest possible level. Example: generate tx level modulation seq/reg your notes: ...

  • Page 17

    17 basic operation 2.06 modulating the carrier the carrier frequency can be modulated with either amplitude modulation (am) or frequency modulation (fm). In am mode it is possible to generate either a single tone or external modulation; dcs and cts are not enabled in am modes. The following combinat...

  • Page 18

    18 basic operation 2.06 modulating the carrier (continued) to generate am tones press the am key; the fmi icon will be replaced with am and % modulation will be displayed. To enter a new am value of 50%, press am, 5, 0, enter/% . The com3010 will now be generating am with 50% modulation and a 1 khz ...

  • Page 19

    19 basic operation 2.06.02 generating using external mod in the external modulation mode allows modulation from an external source via the mod in jack. The value you enter for deviation or % am is followed exactly, and is automatically adjusted by the agc (automatic gain control). Any level from an ...

  • Page 20

    20 basic operation 2.06.03 generating cts to generate a cts tone, press cts . Current parameters are now shown on the display. To enter a new cts tone you will need to know its frequency, not the tone #. Use the chart at the end of the manual for standard cts tones. This field will accept any select...

  • Page 21

    21 basic operation 2.06.04 generating dcs to activate dcs, press the led will light indicating it is on. The dcs code field is now active as indicated by the blinking icon. You must enter the dcs code with the up / down keys. You will be selecting from an internal list stored in the com3010. To sele...

  • Page 22

    22 2.06.05 modulation steps you may enter a step/increment value for fm deviation or am modulation in any of the modulation modes. This entry will also be used for all other format’s deviation steps. For fm press shift, fm and enter in a value from 0.1 hz to 1 khz followed by hz/uv . Example: to ent...

  • Page 23

    23 basic operation 2.06.06 generating two-tone paging signals the com3010 can also generate two tone sequential paging signals. Because there are two tones involved, both displays are used with their corresponding function keys. It is important to remember that each of the display fields is controll...

  • Page 24

    24 basic operation 2.06.06 generating two-tone paging signals (continued) you wish to generate a typical two-tone, tone only paging signal. Tone one is 349.0 hz, and tone-two is 433.7 hz. Sets tone one to 349 hz. Sets tone two to 433.7 hz. Sets tone deviation level to 3.5 khz. (default level is 4 kh...

  • Page 25

    25 basic operation 2.07 receiving a frequency setting the receive frequency is performed in a similar manner to setting the generator. To receive a frequency, press receive fm , or receive am , followed by the frequency, fol- lowed by khz /mv or mhz / -dbm . Example, to receive 162.400 mhz fm: you c...

  • Page 26

    26 basic operation 2.09 using the frequency counters your com3010 contains three different rf frequency counters. Each frequency counter has two gate times. The value counted is the signal presented at the receive in jack. Com3010 frequency counters to select the different counters press: … until th...

  • Page 27

    27 basic operation 2.10 using the frequency meters the frequency meters are selected by pressing meter select multiple times. There are me- ters unique to both receive am and receive fm modes. Any of these meters may be zoomed for a larger display for easy viewing. To zoom a display, press shift , ....

  • Page 28

    28 basic operation any of the meters can be zoomed by pressing common meter displays description 2.10.06 the frequency error bargraph allows visual calibra- tion of a frequency reference to the internal reference of the com3010. This is scale-1, error positive. For a more precise error value see the...

  • Page 29

    29 basic operation 2.11 using the level meters level meters in the com3010 are accessed by pressing shift , meter select multiple times to cycle through the available meters. Level meters available include rssi bargraph, rssi digital meter, power meter, battery meter, and serial status. Each of the ...

  • Page 30

    30 basic operation 2.12 zooming the frequency meters each frequency meter has a corresponding display in the zoom meter mode. The only excep- tion is the +/-4 khz deviation bargraph meter. The +/-6 khz deviation bargraph meter is dis- played twice in the zoom meter mode list. To zoom the display, pr...

  • Page 31

    31 basic operation 2.12 zooming the frequency meters (continued) example of the text version of the frequency error meter. It gives quick, accurate readings, but may be difficult to visualize while manually tuning an oscillator. Use the frequency error bar- graph for tuning. This is an example of th...

  • Page 32

    32 your notes: property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 33

    33 3.00 typical test procedures property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 34

    34 typical test procedures 3.00 typical test procedures this section outlines typical measurements that can be made with the com3010. These test procedures are basic ones designed to help you get familiar with the unit. Once familiar with the com3010 you will be able to combine and modify these proc...

  • Page 35

    35 typical test procedures 3.10 transmitter tests 3.10.01 transmitter power, frequency, and modulation measurement this procedure allows the technical service professional the ability to measure the transmitter frequency accuracy, rf power, and fm deviation or percent of am modulation. Frequency err...

  • Page 36

    36 typical test procedures frequency error measurement 7. The com3010 will also display the counted frequency (lower left field) and the frequency error (lower right field) in the receive screen. 8. Press to zoom the frequency error meter to the entire receive screen. 9. Adjust the transmitter’s fre...

  • Page 37

    37 typical test procedures 3.10.02 power measurements as with many power meters, the frequency to be measured must be specified for accurate power meter readings. 1. Connect the radio to the rf out jack. 2. Transmitter frequency can be entered into the com3010 using one of two methods: manually usin...

  • Page 38

    38 typical test procedures your notes: 3.10.02 power measurements (continued) 6. Key the radio into the com3010; the frequency counter will begin to count the rf signal. The text to the right of the power meter will show “power good” to indicate that the count value and calibration are correct. 7. I...

  • Page 39

    39 typical test procedures 3.10.03 frequency counter off-air this test allows the user to count the frequency of a transmitter off-air. This is especially useful for identifying the frequency of unmarked radios. 1. Connect the whip antenna to the com3010’s receive in jack. 2. Turn off all fm modulat...

  • Page 40

    40 typical test procedures 3.10.05 cts tone frequency and deviation measurement the com3010 can accurately measure the frequency and deviation level of cts sub-audible tones. Cts tones are typically sent at ±0.75 khz deviation while voice deviation is normally set at ±5 khz. Therefore it is importan...

  • Page 41

    41 typical test procedures 3.20 receiver tests 3.20.01 receiver sensitivity and centering frequency this procedure will give the technician a general indication of receive sensitivity and frequency accuracy. For more precise sensitivity measurements see “3.20.02 sinad measurements”. Receiver sensiti...

  • Page 42

    42 typical test procedures 3.20.02 sinad measurements this test allows the user to accurately measure the sensitivity of a receiver with a built-in si- nad test set. The sinad meter is accessed using the shift, 8 buttons. The following is a step-by-step sinad test procedure for testing the sensitivi...

  • Page 43

    43 typical test procedures 3.20.02 sinad measurements (continued) 9. The icon displayed on the receive screen indicates the audio level from the receiver. This icon will indicate if the level is too high (straight up arrow), too low (straight down arrow), adjusting (angled arrow), or correct (flat l...

  • Page 44

    44 typical test procedures 3.20.03 opening receiver squelch using cts the following procedure allows the technician to open a receiver’s cts encoded squelch. The service monitor uses “sub-audible” tones, usually under 300hz at ±0.5 khz of deviation. 1. Connect a test cable between the com3010’s rf o...

  • Page 45

    45 typical test procedures 3.02.04 opening receiver squelch using dcs opening a receivers dcs encoded squelch can be achieved by using the following procedure. The com3010 supports all the commonly used codes, both non-inverted (n) and inverted (i). 1. Connect a test cable between the com3010’s rf o...

  • Page 46

    46 typical test procedures 3.20.05 two-tone paging this function allows the com3010 user to open the squelch of a receiver using the two-tone paging format. 1. Connect a whip antenna on the generator rf out of the com3010. 2. Set generate frequency. Example 3. Enter desired rf level. Example: 4 µ v ...

  • Page 47

    47 typical test procedures 3.20.06 sending external modulation the com3010 has several agc modes available for different signaling methods. The mod in jack is dc coupled to allow proper transmission of digital data as well as accurate reproduc- tion of 4-level paging formats such as flex. The com301...

  • Page 48

    48 typical test procedures tone (sine wave symbol) tone agc was designed for continuous tones. Once the agc has set the gain the agc circuit will verify the output level and correct if necessary, approximately every two seconds. 1. Connect an audio generator such as the ramsey sg560 to the mod in ja...

  • Page 49

    49 typical test procedures digital (square wave symbol) digital agc helps to get the desired deviation, and it is dc biased. This means that for an in- put signal of 0-5v, the deviation will only go to the plus side of zero. If the input signal is –2.5v to +2.5v, it will be centered around zero. Als...

  • Page 50

    50 typical test procedures 3.20.07 testing repeater receiver desensitization repeaters operate commonly in 2 bands usually at uhf 450 – 470 mhz and 800 mhz. They are occasionally found in the 150-160 mhz vhf bands as well. The com3010, with its high stability accurate signal source using a calibrate...

  • Page 51

    51 typical test procedures step-1 calibrating an isolation tee (iso-t) 1. You must calibrate the iso-t to 40db first in order to insure sufficient isolation and to accurately measure the receiver sensitivity. 2. The com3010 is set up to generate at the repeater receiver frequency. 3. Attach cables, ...

  • Page 52

    52 typical test procedures 12. While keyed adjust the generator output as necessary to achieve 12 db sinad. 13. Subtract the transmitter turned off sinad from the transmitter turned on sinad setting to arrive at the actual db level of desensitization. 14. Typical readings are usually no more than 1 ...

  • Page 53

    53 typical test procedures 3.20.08 tuning a duplexer the three types of duplexers commonly used in vhf, uhf and 800 mhz communication systems are: 1. Band pass 2. Band pass-band reject 3. Band reject the com 3010, with its high stability accurate signal source and the associated rssi receiver, makes...

  • Page 54

    54 typical test procedures • set up the com 3010 to generate and monitor the same frequency. The com 3010 can be linked for either the transmitter or receiver frequency. Step-1 tuning the receiver side of the duplexer (rx pass) 1. The receive side of the duplexer is tuned to reject the transmitter n...

  • Page 55

    55 typical test procedures step-2 tuning the transmitter side of the duplexer (tx pass) 1. The transmit side of the duplexer is tuned to reject noise at the receiver frequency. 2. Set up the com 3010 to generate and monitor the repeater receiver frequency. 3. Attach the 50 ohm load directly to the d...

  • Page 56

    56 typical test procedures step-3 insertion loss final test 1. Leave the rf out cable connected to the duplexer antenna port. You can final test the duplexer to make sure that it is operating correctly by an insertion loss test. 2. While the receive in is connected to the transmitter side of the dup...

  • Page 57: 4.00 Advanced Features

    57 4.00 advanced features property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 58

    58 advanced features 4.10 memories the time will probably come when you will want to store settings for repetitive testing of equipment. The com3010 memory is broken down into sequences that contain registers. A sequence can be assigned to each different piece of equipment you test. The registers in...

  • Page 59

    59 advanced features memories (continued) recalling registers 1. Press 2. Enter the two digit number of the sequence you desire. Example: 02 3. Use the up/ down arrows to scroll through different sequences 4. Press enter the two digit register number or use the up/down arrows to scroll through diffe...

  • Page 60

    60 advanced features your notes: memories (continued) deleting entire sequences 1. Press 2. Enter sequence number. Example: sequence 2 3. Press to enter delete mode. 4. Press to select ‘yes’. Default sequence and register sequence 99 register 99 is reserved for power-up settings. This replaces the d...

  • Page 61

    61 advanced features 4.20 smart link smart link allows the receiver and generator to be linked together. If the generator and re- ceiver are on the same frequency they will change to the same frequency if a new one is en- tered in either the generate or receive screen. If the generate and receive fr...

  • Page 62

    62 advanced features 4.30 scanner the scanner function is used to monitor known frequencies for proper operation. The scanner function will allow sweeping through any sequence of memories that are pre- programmed into the com3010. This allows scanning of up to100 channels in a single sweep. The more...

  • Page 63

    63 advanced features 4.30 scanner (continued) 11. Press 12. Enter sequence number 13. Press and the information is stored in the “02” register. 14. Press shift, 7 to enter the scanner mode. 15. Enter the sequence number 16. Press 17. Turn the squelch knob until the squelch just closes. Press the uni...

  • Page 64

    64 advanced features 4.40 sweep generator the sweep generator is used for testing frequency response of filters, flatness of cables, and similar tests. This function can be used in conjunction with a spectrum analyzer or the self- calibrated rssi meter on the com3010 with the link activated. On the ...

  • Page 65

    65 advanced features 4.40 sweep generator (continued) the start field is accessed with the meter select key. The exit field is accessed with the @count key. To set up a sweep from 10 mhz to 1ghz (1000 mhz) with a level of –120dbm, linear, with 100 steps, follow these keystrokes: 1. To enter the swee...

  • Page 66

    66 advanced features 4.50 user options: the user options for the com3010 are available by pressing shift, 6 . This brings you to the main options menu. This menu is displayed on both the generate and receive screens. The options listed that are available to the user are in brackets. The options betw...

  • Page 67

    67 advanced features general options: these are accessed by pressing shift, 6 , then the generate key. On the generate screen: the buzzer is toggled on and off using the key and turns all buzzer events on or off. Cable comp: adds 1 db to the power reading at 1 ghz, linearly declining to 0 db of adde...

  • Page 68

    68 advanced features general options (continued) on the receive screen: the dim function allows the user to use the up/down arrows to select the display intensity. Access this option using the button. [exit&save] exits this menu and saves all option settings using the key. Splash allows disabling of...

  • Page 69

    69 advanced features clear memories: clear memories is an option that allows you to clear all registers and sequences including the special 99.99 registers. This allows you to “clean up” the com3010 if planning on setting it up for a new test bench or other purpose. To get to the clear mems function...

  • Page 70

    70 your notes: property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 71: 5.00 User Calibrations

    71 5.00 user calibrations property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 72

    72 user calibrations 5.00 user calibrations several features of the com3010 can be calibrated by the user: the rssi meter, the master time base, and the modulation bargraph meter. When displaying the calibration screens items surrounded by ‘[ ‘]’ indicate user functions, where the ‘‘ indicate passwo...

  • Page 73

    73 user calibrations 5.20 calibrate the master time base the com3010’s master time base is a voltage controlled tcxo with an accuracy of better than ± 0.1ppm over a given time and temperature. The time base is easily adjusted to any calibrated standard or reference available. Any frequency within th...

  • Page 74

    74 user calibrations 5.20 calibrate the master time base (continued) 1. Connect an accurate reference frequency source to the com3010’s receive in jack. 2. Press to enter the main calibration menu. 3. Press to select [freq ref]. Note the warning about having a good reference. 4. Selects [yes] to con...

  • Page 75

    75 user calibrations 5.30 calibrate the modulation meter occasionally the quadrature detector of the com3010 may need alignment to center the modulation meters. 1. Connect the rf out to the receiver in using a bnc to bnc cable. 2. Press to enter the main calibration menu. 3. Press to enter mod meter...

  • Page 76

    76 your notes: property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 77: 6.00 Detailed Information

    77 6.00 detailed information property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 78

    78 6.10 digital modulation on the com3010 when connecting the com3010 an external broad-band modulation analyzer, the analyzer will typically see a larger deviation than expected. It may be as much as 5%. This is due to the very fast frequency changes used to “emulate” fm by digitally switching freq...

  • Page 79

    79 detailed information 6.20 advanced power meter information the com3010 power meter is a voltage mode power meter. The com3010 power meter is not a true rms type of power meter, meaning that it will measure your primary carrier voltage accurately and convert it to a power in dbm. It is possible fo...

  • Page 80

    80 detailed information 6.30 30 db rear panel attenuator output. The 30db attenuator output on the back of the com3010 can be used for a variety of external hookups such as spectrum analyzers, modulation analyzers, and other test gear. It can also be used to loop back into the receiver input on the ...

  • Page 81

    81 detailed information 6.40 advanced sinad information what is sinad? Sinad is a parameter which provides a convenient measurement of the quality of an audio signal from a radio or other communications device. Sinad is a simple measurement of the power ratio between signal + noise + distortion to j...

  • Page 82

    82 detailed information bring up any incoming audio level used during test to a point that the sampling circuit can use it to full advantage and best dynamic range. The com3010 can amplify fairly low level signals up to a usable level so that you don’t add distortion errors to your measurement by tu...

  • Page 83

    83 detailed information 6.50 rs232 communications the serial remote control function of the com3010 provides all the same operations that can be accessed from the front panel except for the scanner and sweep functions. The serial port on the back of the com3010 is filtered to prevent rf leakage. Thi...

  • Page 84

    84 detailed information 3. To enter the options screen. 4. Selects serial options. 5. Use the buttons to select 9600 baud. 6. To exit, save changes, and return to operational mode. 7. Press several times until the serial status is displayed on the com3010. This meter will normally only be used to tr...

  • Page 85

    85 detailed information again. Other terminal software should not exhibit this problem. Testing with some legitimate commands: enter “sys open 555” [enter], and the com3010 should connect. Enter “set gf 403.25m” [enter]; this will set the generator frequency to 403.25mhz. Enter “set gl –45dbm” [ente...

  • Page 86

    86 detailed information major command sub- command format low high returns description system commands sys opn/open ### 0 999 ok/bad opens serial communications with this com3010 if address matches setting. Sys cls/close ok/bad closes serial communication. After this, nothing is sent or received. Sy...

  • Page 87

    87 detailed information maj or sub- command format low high returns description generator side set gf ###.##### #mhz 0.100000m hz 1000.000000 mhz ok/bad set generator frequency set gen,genstat e on/off on off ok/bad sets the generator state. By default when entering the serial mode, this is set to o...

  • Page 88

    88 detailed information receiver side set rf ###.#### #mhz 0.100000 mhz 1000.00000 mhz ok/bad set receiver frequency set ram am receive mode set rfm fm receive mode set counterm ode # 1 6 ok/bad set counter mode (see counter mode lists) set lmeter # 1 8 ok/bad set lower meter mode (see valid meter m...

  • Page 89

    89 detailed information major com- mand sub- command format low high returns description memories mem get ##.## 00.00 99.99 ok/bad recall memory from sequence.Register mem nxt ok/bad recall next memory in the sequence mem prev ok/bad recall previous memory in the sequence mem save ##.## 00.00 99.99 ...

  • Page 90

    90 detailed information 6.50.05 get commands major comma nd sub-command low high returns description bottom meters get rfcount 0 1200.000000m hz ####.##### #mhz get current rf frequency count specified by the current counter mode (see counter mode lists) get afcount 0 6000 ####.#khz get current af c...

  • Page 91

    91 detailed information major comma nd sub- command low high returns description operating values get gf 100khz 1000.000000m hz ####.##### #mhz get generator frequency get gen,genstate off on on/off gets the current state of the generator. Get gl,lvl,level -120.0dbm 0dbm ###.#dbm get generator level...

  • Page 92

    92 detailed information get ramfm am fm am/fm get receiver am/fm mode get countermode 1 6 # get counter mode (see counter mode lists) get lmeter 1 9 # get lower meter mode (see valid meter mode lists) get umeter 1 4 # get upper meter mode (see valid meter mode lists) get power meter off on on/off re...

  • Page 93

    93 detailed information 6.50.06 various meter mode options lower meter mode table mode # mode name valid in am valid in fm 1 frequency error graphic yes yes 2 frequency error text yes yes 3 fm modulation graphic +/-7khz no yes 4 fm modulation graphic +/-4khz no yes 5 fm modulation text no yes 6 am p...

  • Page 94

    94 detailed information sweep speed mode table 1 2 10ms 3 25ms 4 50ms 5 100ms 6 250ms 7 500ms 8 1s sweep mode table 1 decade 2 octive 3 linear external agc mode table 1 tone 2 voice 3 digital 4 sinad 6.50.07 various mode options property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 95: 7.00 Appendix

    95 7.00 appendix property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 96

    96 appendix button description shift description power turns power on and off. None ext toggles external modulation mode and selects deviation. Ext agc cycles the various agc modes for the external input. Int toggles the internal modula- tion mode and selects tone. Paging accesses the various paging...

  • Page 97

    97 appendix button description shift description 8 enters an “8” sinad1k macro for setting up sinad test- ing. 9 enters a “9” sinad400 macro for setting up sinad test- ing. 0 enters a “0” pwr save turns off the displays to save power. . Enters a “.” zoom me- ter zooms the current freq meter. - enter...

  • Page 98

    98 appendix 67.0 79.7 156.7 179.9 210.7 241.8 71.9 82.5 162.2 186.2 218.1 250.3 74.4 85.4 167.9 192.8 225.7 77.0 88.5 173.8 203.5 233.6 standard eia cts tones (hz) 91.5 94.8 97.4 100.0 136.5 141.3 146.2 151.4 118.8 123.0 127.3 131.8 103.5 107.2 110.9 114.8 appendix b cts tone frequency list: 023n 07...

  • Page 99

    99 appendix option name: choices default description buzzer on / off on turns all buzzer sounds on or off. Cable comp on / off off if on, adds 1db to the power reading at 1ghz, linearly declining to 0db of added power at 0hz. Round on / off on turns the “rounding to nearest step size” feature of the...

  • Page 100: Com3010 Specifications

    100 features: • display: 2 vacuum fluorescent graphical displays, 16 x 140 pixels • memories: 100 sequences of 100 registers, plus system memories • sweep features: linear, octave, and decade of up to 1000 pts for sweeping generator • scanner mode: allows scanning through a sequence of 100 stored se...

  • Page 101: Com3010 Specifications

    101 receiver: • frequency: 100 khz to 1.0 ghz • step size: 10 hz • sensitivity: less than 2 uv, 1 mhz to 512 mhz; less than 3 uv, 512 mhz to 1 ghz; un- specified, 100 khz to 1 mhz • fm demod: 0 to 7 khz, 0 to 4 khz • am demod: 0 to100% • cts decode: in af frequency count • frequency error: 0 to1 mhz...

  • Page 102

    102 accessories: • battery pack: bp3010 additional battery pack to extend battery life (1 pack supplied, 3 max) • carrying case: cc3010 custom cordura® padded travel case w/ strap property of ramsey electronics, inc. Do not reproduce or distribute..

  • Page 103: Certification

    Certification ramsey electronics, inc. Certifies that this product meets its published specifications at the time of manufacture, and that the calibration measurements are traceable to the united states national bureau of standards. Warranty ramsey electronics, inc. Warrants this product against def...

  • Page 104

    Ramsey electronics, inc. 590 fishers station drive victor, ny 14564 (585) 924-4560 www.Ramseytest.Com copyright ramsey electronics, inc. 2005, all rights reserved com3010 january 2005 v1.20.18 property of ramsey electronics, inc. Do not reproduce or distribute..