Advantest R5372 - Microwave Counter 10 mHz to 18 GHz, with options 01 & 22

Agilent HP Option 011 GPIB interface (not including slope or trigger level control)

Agilent HP 5087A - Distribution Amplifier with Option 033. Single 10 MHz input with 12 outputs.

Agilent HP 5300B / 5308A - DC - 75 MHz counter / timer. Includes model 5312A HP-IB interface and optional TCXO timebase.

Agilent HP 5302A - 50 MHz Universal Counter Module

Agilent HP 5314A - 10 Hz to 100 MHz universal frequency counter. TCXO and internal battery options available.

Agilent HP 5315A Universal Frequency Counter w/ 1GHz Channel C and TCXO Options

Agilent HP 5315A - Universal Counter

Agilent HP 5315A - Universal Counter DC to 100 MHz with Optional TCXO Timebase

Agilent HP 5316A Universal Frequency Counter with Optional TCXO and 1 GHz C Channel

Agilent HP 5316A - Universal Counter DC to 1GHz with optional Channel C

Agilent HP 5316B DC to 100 MHz programmable universal counter.

Agilent HP 5328A 500 MHz Universal Counter with options 010, 011, 030, 041, & 042.

Agilent HP 5328B 100 MHz Universal Counter with Option 050 - 1300 MHz Channel C plus DVM

Agilent HP 5328B 100 MHz Universal Counter with Option 010 - High Stability Time Base & 030 - 513 MHz Channel C

Agilent HP 5334A Universal Counter with Opt 030 1300 MHz C Channel & Opt 020 DVM

Agilent HP 5334B 1.3 GHz Universal Frequency Counter with Option 030 1300 MHz Channel

Agilent HP 5335A - Frequency Counter with optional 1.3 GHz C Channel, DVM, Expanded HPIB functions.

Agilent HP 5335A - Frequency Counter with optional 1.3 GHz C Channel, Oven Timebase, Expanded HPIB functions.

Agilent HP 5335A - Frequency Counter with opt 10, 20, 30, 40 ( 1.3 GHz C Channel, Oven Timebase, DVM, and expanded HPIB functions)

Agilent HP 5340A - Microwave Frequency Counter. 10 Hz to 18 GHz

Agilent HP 5340A - Microwave Frequency Counter. 10 Hz to 18 GHz with Option 001

Agilent HP 5342A - DC to 18 GHz Microwave Frequency Counter.

Agilent HP 5342A - DC to 24 GHz Microwave Frequency Counter. Includes 005 Frequency Extension

Agilent HP 5343A 10 Hz to 26.5 GHz Microwave Frequency Counter.

Agilent HP 5343A 10 Hz to 26.5 GHz Microwave Frequency Counter Type N Connector with options H02 and 001 - Time Base

Agilent HP 5345A DC to 500 MHz frequency counter. 11 digit resolution. Frequency extension plug-ins available up to 40 GHz.

Agilent HP 5350A 10Hz to 20GHz Microwave Frequency Counter

Agilent HP 5350B Microwave Frequency Counter. 10 Hz to 20 GHz.

Agilent HP 5351A Microwave Counter

Agilent HP 5351B 26.5 GHz Microwave Frequency Counter

Agilent HP 5352B - Microwave counter 10 Hz to 40 GHz.

Agilent HP 5352B - Microwave counter 10 Hz to 40 GHz with oven timebase opt 001

Agilent HP 5355A Automactic Frequency Converter

Agilent HP 5359A - Time synthesizer produces two extremely precise low jitter time delays up to 160 mS

Agilent HP 536A Coaxial Frequency Meter

Agilent HP 5370A - Universal Time Interval Counter

Agilent HP 5370B 100 MHz Universal Time Interval Counter

Agilent HP 5372A Modulation Domain Analyzer

Agilent HP 537A Coaxial Frequency Meter

Agilent HP 5384A Frequency counter. 10 Hz to 225 MHz.

Agilent HP 5384A Frequency counter. 10 Hz to 225 MHz. Opt 003 HP/IL

Agilent HP 5385A Frequency Counter

Agilent HP 5386A - Frequency counter. 10 Hz to 3 GHz.

Agilent HP Symmetricom 58503A - GPS Time & Frequency Receiver with options 001 and H02

Agilent HP J06-59992A Time interval calibrator for 5370B

Agilent HP Option 001 - Oven Timebase for 5342A, 5343A

Agilent HP Option 001 - Oven Time Base for 5350B, 5351B, & 5352B

Agilent HP Opt. 001 TCXO Timebase for 5384A Frequency Counter

Agilent HP Option 002 - Power Meter Option for 5342A/43A

Agilent HP Option 004 for 5386A - High Stability Timebase

Agilent HP Option 006 - Limiter Input Protection.

Agilent HP Option 006 - Microwave Level Limiter for 5350B, 5351B

Agilent HP Option 010 Oven Timebase for 5335A Universal Counter

Agilent HP Option 010 - High Stability Oven Time Base for 5350B, 5351B, & 5352B

Agilent HP Option 011 - GPIB / HPIB for 5342A 5343A

Agilent Keysight 53131A /010 ** specially selected for bright VFD** Ten digit universal counter. 225 MHz standard, with Opt 010 High Stability Timebase. 3 GHz option available.

Agilent Keysight 53131A - **AccuSource selected for bright display VFD** 10 digit universal counter. 225 MHz standard, 3 GHz optional.

Agilent Keysight 53132A **AccuSource selected for bright display VFD** 12 digit/sec universal counter. 225 MHz standard, 3 GHz optional.

Agilent Keysight 53132A 12 digit/sec universal counter with option 124 ( 12.4 GHz). 225 MHz standard on channel 1&2. Timebase options available.

Agilent Keysight 53147A - Portable Frequency Counter / Power Meter / DVM. 10 Hz to 20 GHz. Power Sensors sold separately.

Agilent Keysight 53147A - Portable Frequency Counter / Power Meter / DVM. 10 Hz to 20 GHz. With opt 001 Oven Timebase. Power Sensors sold separately.

Agilent Keysight 53147A - Portable Frequency Counter / Power Meter / DVM w/ opt 001 & 002 Oven Timebase & Rechargable Battery

Agilent Keysight 53148A / 001 / 002 Portable Frequency Counter / Power Meter / DVM. 10 Hz to 26.5 GHz. Includes Option 001 Oven Timebase and option 002 internal rechargeable battery. Power Sensor Sold Separately.

Agilent Keysight 53150A 001 20 GHz CW Microwave Counter Power Meter with Option 001 Oven Timebase and Fresh Cal Cert from Agilent

Agilent Keysight 53151A 26.5 GHz Microwave Frequency Counter / Power Meter with option 001 - Oven Timebase -- As New

Agilent Keysight 53152A - CW Microwave Counter

Agilent HP 53181A - 10 digit frequency counter. 225 MHz standard, 3 GHz optional.

Agilent Keysight 53181A - 5.0 GHz Frequency Counter with Option 050 - 5.0 GHz RF Input Channel

Agilent Keysight 53181A - 12.4 GHz Frequency Counter with Option 124 - 12.4 GHz RF input with type N connector Ch 2

Agilent Keysight 53210A / 106 / 010 Frequency Counter. 10 digits/s. Includes 6 GHz channel and ultra high stability timebase options.

Agilent Keysignt 53220A / 106 Universal Frequency Counter/Timer, 12 digits/s, 100 ps with 6 GHz channel option.

Agilent Keysight 53220A - 350 MHz Universal Frequency Counter / Timer

Agilent Keysight 53230A - 350 MHz Universal Frequency Counter / Timer

Agilent Keysight Medium stability timebase for 53131A, 53132A, 53181A

Agilent Keysight Option 012 Ultra-Precision Timebase for 53131A, 53132A & 53181A counters

Agilent Keysight Option 015 1.5 GHz channel for 53181A counter.

Agilent Keysight Option 010 Oven Timebase for 53131A, 53132A & 53181A counters

Agilent Keysight Option 030 3 GHz channel for 53131A, 53132A & 53181A counters.

Agilent Keysight Option 60 for 53131A, 53132A & 53181A counters.

Anritsu MF2412C Microwave Frequency Counter. 10 Hz to 20 GHz. High Stability Oven Timebase, Burst Measurements, 12-digit VFD and more.

BK Precision 1856A DC to 2.4 GHz frequency counter. TCXO timebase.

Datum Symmetricom FTS1050A Quartz frequency standard with internal standby battery

EIP 25B - 10 Hz to 20 GHz Frequency Counter / Power Meter

EIP Phase Matrix 28B - 10 Hz to 26.5 GHz Frequency Counter / Power Meter

EIP 545A 10 Hz to 18 GHz Frequency Counter with Option 02 Power Meter

EIP 545A 10 Hz to 18 GHz frequency counter TCXO Standard Timebase

EIP 548A - Microwave Frequency Counter. 10 Hz to 26.5 GHZ. Includes option 05 (best available timebase), and option 06 (frequency extension capability).

EIP 548B - 10 Hz to 26.5 GHz Microwave Frequency Counter. Includes option 02 Power Measurement

EIP 548B - 10 Hz to 26.5 GHz Microwave Frequency Counter. Includes option 05 (best available timebase), and option 06 (frequency extension capability).

EIP 575 Source Locking Microwave Counter. 10MHz to 18GHz with Power Meter and Oven Timebase Option

EIP Phase Matrix 575B Source Locking Microwave Counter. 10 Hz to 20 GHz. Oven Timebase Option.

EIP 578 10 Hz to 26.5 GHz frequency counter with source locking capability

EIP 578B - 10 Hz to 2.65 GHz Source Locking Microwave Counter. Includes Option 5 Oven Timebase & Option 6 Frequency Extension Capability

EIP 585 - 300 MHz to 18 GHz Microwave Pulse Counter,

EIP 585B - Microwave Frequency Counter. 100 Hz to 20 GHZ. General purpose microwave counter also measures pulses as narrow as 50 ns.

Frequency Extension Cable set for 538, 548, 578 series counters with external mixing capability. Option 91 adds 26.5 to 40 GHz remote sensor.

EIP Phase Matrix ACC091 26.5 to 40 GHz Remote Sensor with 890 Frequency Extension Cable Kit.

EIP Option 08 - GPIB for Microwave Frequency Counter Models 545A & 548A

Fluke 7220A - Universal Frequency Counter. 10 Hz to 1.3 GHz