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PAMS Transmitter Specifications 

 

Frequency 

   864-936 

MHz 

 

Channel 

Spacing 

   100 

kHz 

 
Operating Modes 

 

 

CW, BROADBAND  

 

CW Output Power 

 

 

-30 dBm to +30 dB (CW) 

 

 

 

 

 

 

Broadband Output 

 

 

Combline with pickets at 

 

 

 

 

 

25 MHz steps from 750  - 

 

 

 

 

 

1000 MHz, -12dBm 

 

Attenuation 

   0 

to 

60 

dBm 

     1, 

2, 

or 

5 

dB 

steps 

 

Frequency 

Stability 

  +/-2.5 

ppm 

 

Charge Voltage at Power Jack 

 

DC, 15 +/-1.0 V @ 2A 

 

 

 

 

 

 

Battery Operation 

 

 

2 hours operation 

 

 

 

 

 

70 minutes charge 

 
Controls  

 

 

 

OFF/ON, MODE, ATTEN 

 

 

 

 

 

FREQUENCY SELECT, 

 

 

 

 

 

BACK LIGHT, LOCK 

 

Indicators 

   MODE, 

FREQUENCY, 

 

 

 

 

 

OUTPUT POWER, 

     ATTEN 

LEVEL,LOCK, 

 

 

 

 

 

 

BATTERY CHARGE 

 
User 

Interface 

   Full 

Alpha-numeric 

Back-

     lit 

LCD 

display 

 
Operating Temperature   

 

0°C to 40°C 

 

Weight   

 

 

 

5.5 lbs. 

 

Size 

 

 

 

 

11.7” H x 5.1” D x 4.9” W

 

Page 4 

P R A X S Y M    

Содержание PAMS

Страница 1: ...User s Manual The solution for making easy shielding effectiveness measurements PAMS Portable Attenuation Measurement System 310 010042 001...

Страница 2: ...cts 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...

Страница 3: ...readout display the shielding level dB Separately the transmitter and receiver will also work well in custom applications The transmitter provides a portable and semi rugged CW transmitter with adjus...

Страница 4: ...e at Power Jack DC 15 1 0 V 2A Battery Operation 4 hours operation 70 minutes charge Controls OFF VOL MODE CAL FREQUENCY SELECT T HOLD UP DOWN LOCK BACK LIGHT Indicators MODE CAL STATUS SIGNAL LEVEL F...

Страница 5: ...o 60 dBm 1 2 or 5 dB steps Frequency Stability 2 5 ppm Charge Voltage at Power Jack DC 15 1 0 V 2A Battery Operation 2 hours operation 70 minutes charge Controls OFF ON MODE ATTEN FREQUENCY SELECT BAC...

Страница 6: ...may self discharge to less than 3 Volts after a period of storage or if the unit is left on for several days During a new charge cycle it will first enter a pre charge trickle state before beginning t...

Страница 7: ...ood practice to disconnect the batteries to ensure long battery life With the batteries disconnected they can be stored charged or discharged To disconnect the batteries unplug the 2 pin connector usi...

Страница 8: ...used to measure the signal level of a continuous wave signal The receiver has a narrow 7 5 kHz IF bandwidth enabling it to measure a test signal in the presence of interfering signals in the same band...

Страница 9: ...eps Depress the F DIGIT switch to toggle the step size between 1 MHz and 100 kHz The current step size is displayed on the FR ADJ line of the display The frequency can be set in either Signal Strength...

Страница 10: ...Although the screen will have lower visibility by turning the backlight off the battery life will be increased by approximately 10 Control Lock Once set the controls of the receiver can be locked to...

Страница 11: ...de the output level of the CW signal can be changed using the frequency control knob Depressing the mode button a second time places the transmitter in broadband mode See Section 3 4 for a description...

Страница 12: ...test frequency to ensure no interfering signal is present on your test frequency When making measurements in an unfamiliar area set the receiver to Spectrum Monitor mode to determine frequencies in t...

Страница 13: ...receiver will flash INITIALIZE PRESS CAL on the display Ensure that there are no obstructions between the transmitter and receiver and then depress the CAL button on the Receiver The display should i...

Страница 14: ...he enclosure open measure the level of the pickets with a spectrum analyzer Shield level can be determined by calculating the drop in picket level after the enclosure door is closed 3 5 Monitor Mode O...

Страница 15: ...er On Rotate POWER switch to the ON position Depress the mode button until the LCD mode line reads monitor NOTE The INITIALIZE PRESS CAL warning will flash until a system level calibration is performe...

Страница 16: ...15 SHIELDED ROOM Close Door Begin Test in MONITOR mode Set the switch matrix to select ANT 1 Read and manually record the MONIT LEVEL dB Repeat the above sequence for antennas 2 12 12 Position RF Swi...

Страница 17: ...the threshold a variable tone is emitted Low frequency tones correspond to low poor shielding levels while high frequency tones signify high better shielding levels If the shielding level exceeds the...

Страница 18: ...Page 17 Notes...

Страница 19: ...Notes Page 18 P R A X S Y M...

Страница 20: ...900 000001 001 Rev G P R A X S Y M...

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