545B & 548B

The 545B and 548B frequency counters are popular in R&D labs and production test settings because they perform multiple duties and a variety of applications. They provide the capability to selectively measure individual signals in a multi-signal environment. Additionally, they can simultaneously measure the average power level of the isolated input signal. The 545B measures CW, FM, and AM frequencies from 10 Hz to 20 GHz, and the 548B extends the range to 26.5 GHz. Optionally, the 548B's range can be further extended to 110 GHz.

EIP® 28B Frequency Counter

All Phase Matrix EIP® brand frequency counters are based on a unique heterodyne architecture that incorporates a YIG-based preselector. The YIG-preselected input provides unparalleled performance, in amplitude discrimination, frequency selectivity, kickback noise, and burnout protection.

• Frequency Limits for Selective Frequency and Power Measurements
• -30 dBm sensitivity
• Power Measurements to ±0.1 dB Resolution
• Optional Frequency Extension to 110 GHz (548B Only)
• 10 dB automatic amplitude discrimination

Accessories

Part Number
Description Documentation Image
M545B-ACC101
M548B-ACC101
24" Chassis Slide Kit w/Handles Datasheet
M545B-ACC102
M548B-ACC102
24" chassis slide kit w/o handles Datasheet
M545B-ACC020
M548B-ACC020
Rack-mount kit w/handles Datasheet
M545B-ACC022
M548B-ACC022
Rack-mount kit w/o handles Datasheet
M545B-ACC010
M548B-ACC010
Transit Case None
M545B-ACC050
M548B-ACC050
Canvass Carrying Case None EIP Canvass Carrying Case
M545B-ACC031
M548B-ACC031
Operation Manual None Phase Matrix Manual
M545B-ACC032
M548B-ACC032
Service Manual None Phase Matrix Manual
M545B-ACC040
M548B-ACC040
Service Kit None
M548B-ACC590 Frequency Extension Cable Kit None
M548B-ACC091 26.5 to 40 GHz remote sensor None
M548B-ACC092 40 to 90 GHz remote sensor None
M548B-ACC093 60 to 90 GHz remote sensor None
M548B-ACC094 90 to 110 GHz remote sensor None
M548B-ACC095 50 to 75 GHz remote sensor None
M548B-ACC097 26.5 to 50 GHz remote sensor (coaxial) None

Ordering Information►

Models 545B 10 Hz to 20 GHz frequency counter
  548B 10 Hz to 26.5 GHz frequency counter
Options 01 Digital-to-analog converter
  02 Power measurement
  05 High-stability ovenized time base
  06 Frequency extension to 110 GHz (548B only)
  09 Rear panel signal input
  14 Two-year warranty extension (for total of three years)
  15 ANSI/NCSL Z540 Standard data & certificate
Accessories M545B-ACC101
M548B-ACC101
Kit, 24" chassis slide w/handles
  M545B-ACC102
M548B-ACC102
Kit, 24" chassis slide w/o handles
  M545B-ACC020
M548B-ACC020
Kit, rack-mount w/handles
  M545B-ACC022
M548B-ACC022
Kit, rack-mount w/o handles
  M545B-ACC010
M548B-ACC010
Case, trunk-style
  M545B-ACC050
M548B-ACC050
Case, canvas-style
  M545B-ACC031
M548B-ACC031
Manual, operation (extra hardcopy in addition to the one that ships with a new unit)
  M545B-ACC032
M548B-ACC032
Manual, service (hardcopy)
  M545B-ACC040
M548B-ACC040
Kit, service
  M548B-ACC590 Kit, frequency-extenstion cable
  M548B-ACC091 Remote sensor, 26.5 to 40 GHz
  M548B-ACC092 Remote sensor, 40 to 90 GHz
  M548B-ACC093 Remote sensor, 50 to 90 GHz
  M548B-ACC094 Remote sensor, 90 to 110 GHz
  M548B-ACC095 Remote sensor, 50 to 75 GHz
  M548B-ACC097 Remote sensor, 26.5 to 50 GHz (coaxial)

Phase Matrix warrants its products to be free from defects in material and workmanship for one year from the date of delivery. Damage due to accident, abuse, or improper signal level is not covered by the warranty. Removal, defacement, or alteration of any serial number, inspection label, marking or seal may void the warranty. Phase Matrix will repair or replace, at its option, any components of this product that prove to be defective during the warranty period provided that the entire unit is returned freight prepaid to Phase Matrix, Inc. or an authorized service facility. In-warranty units will be returned freight prepaid; out-of-warranty units will be returned freight COLLECT. No warranty other than the above is expressed or implied.