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Broadband Wireless Power Meter

User’s Manual

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Summary of Contents for t-meter

Page 1: ...Broadband Wireless Power Meter User s Manual ...

Page 2: ...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 PRAXSY...

Page 3: ...OF CONTENTS Introduction 1 Use 2 Measuring Transmitter Power 5 Measuring Transmission Line Loss 7 Measuring VSWR of Antenna and Terminations 9 Specifications 11 Appendix VSWR Table 13 Appendix Notes 15 P R A X S Y M ...

Page 4: ...s of wireless broadband modu lation schemes in many popular licensed and unlicensed frequency bands worldwide The meter was designed with the system integrator and installer in mind It is the perfect tool for the verification of transmitter power transmission line loss characteristics and antenna performance Key features affordability portability quad band use in the microwave bands verification o...

Page 5: ...nsmitter The meter should always have a 50 Ω load on its output when connected to a transmitter Depending on the type of test this can be an antenna or the 50 Ω termination included in the kit The 10 dB attenuator is included for use when the device under test transmits a signal higher than 20 dBm in amplitude When using the 10 dB at tenuator it is a good idea to change the offset to 10 attn in th...

Page 6: ...he for ward and reflected measurements The accuracy of the VSWR meas urement depends on several variables forward and reflected power levels attenuation in the transmission line etc Button Description ON OFF Turns the unit ON or OFF Unit also powers down five minutes after last key depression Powers up to the last state that it was in SELECT Depressing the SELECT button cycles through the op tions...

Page 7: ...er The power measurement is displayed continuously The VSWR is displayed for two seconds on the bottom display line and then is replaced for one second by the band indi cator 2 4G for example and the in line attenuator setting 00 attn 10 attn 20 attn or 30 attn REFL Similar in function to the FWD button except it dis Page 4 P R A X S Y M ...

Page 8: ...d direction and 20 to 17 dBm in the reflected Damage can occur to the meter if the forward power into the meter without the attenuator exceeds 33 dBm Most broadband radio transmitters deliver less than 100 mW 20 dBm The 2 W 10 dB attenuator can be used for sources that are between 20 and 30 dBm in amplitude Remember to apply the ap propriate offset in the MODE setting 10 attn if the attenuator in ...

Page 9: ...Page 6 P R A X S Y M ...

Page 10: ...smission line Connect the trans mission line directly to the transmitter with the proper amount of attenuation if necessary Move the power meter to the opposite end of the transmission line Connect the meter as shown on the opposite page Take another forward power reading Subtract this forward power reading from that taken directly off the back of the transmitter This is the amount of signal lost ...

Page 11: ...Page 8 P R A X S Y M ...

Page 12: ...ty evident using the t meter as they will indicate a VSWR higher than 1 5 1 It is possible to measure the VSWR or return loss of a transmission line termination by placing the meter between it and the radio It is necessary to properly terminate the far end termination with the 50 Ω termination and typically a type N double female adapter not included These measurements are often only accurate for ...

Page 13: ...Page 10 P R A X S Y M ...

Page 14: ...30 dBm to 50 dBm 30 dB inline attenuator Reflected Power Measurement Range 20 dBm to 17 dBm no inline attenuation 10 dBm to 27 dBm 10 dB inline attenuator 0 dBm to 37 dBm 20 dB inline attenuator 10 dBm to 47 dBm 30 dB inline attenuator Power Measurement Accuracy 0 5 dBm with a 1 2 1 LOAD Insertion Loss 0 4 dB 2 4 GHz All t meter models 0 6 dB 5 3 GHz 0 6 dB 5 5 GHz 0 6 dB 5 6 GHz 0 7 dB 5 8 GHz PM...

Page 15: ... Altitude 0 to 15 000 feet Mechanical Specifications RF Connectors Type N female input output Display 2 lines by 8 characters LCD not illuminated Keypad Five keys see definition on page 3 Enclosure Black ABS Power Source 2 AA alkaline batteries industrial grade Size 4 9 x 2 7 inches exc N connector Weight 10 ounces ...

Page 16: ... 0118 1 12 24 9 0 324 0 0139 1 13 24 3 0 375 0 016 1 14 23 7 0 426 0 0185 1 15 23 1 0 488 0 0205 1 16 22 6 0 55 0 0235 1 17 22 1 0 615 0 026 1 18 21 6 0 682 0 0285 1 19 21 2 0 75 0 0318 1 2 20 8 0 816 0 0353 1 21 20 4 0 9 0 0391 1 22 20 1 0 98 0 0426 1 23 19 7 1 08 0 0455 1 24 19 4 1 15 0 049 1 25 19 1 1 23 0 053 1 26 18 8 1 34 0 056 1 27 18 5 1 43 0 06 1 28 18 2 1 52 0 064 1 29 17 9 1 62 0 068 1 ...

Page 17: ...3 3 74 0 164 1 49 14 16 3 87 0 172 1 5 14 4 0 18 1 55 13 3 4 8 0 21 1 6 12 6 5 5 0 24 1 65 12 2 6 2 0 27 1 7 11 7 6 8 0 31 1 75 11 3 7 4 0 34 1 8 10 9 8 2 0 37 1 85 10 5 8 9 0 4 1 9 10 2 9 6 0 44 1 95 9 8 10 2 0 47 2 9 5 11 0 5 2 1 9 12 4 0 57 2 2 8 6 13 8 0 65 2 3 8 2 15 3 0 73 2 4 7 7 16 6 0 8 2 5 7 3 18 0 88 2 6 7 19 5 0 95 2 7 6 7 20 8 1 03 2 8 6 5 22 3 1 1 2 9 6 2 23 7 1 17 3 6 24 9 1 25 3 5 ...

Page 18: ...BROADBAND WIRELESS POWER METER Page 15 Notes ...

Page 19: ...Page 16 P R A X S Y M Notes ...

Page 20: ...P R A X S Y M 070110 Rev C 900 000002 002 ...

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