R&S CTH100A-CTH200A Portable Radio Test Set


R&S®CTH100A / R&S®CTH200A Portable Radio Test Set


The R&S®CTH allows dependable testing of analog FM radio systems even under challenging

environmental conditions. The radio test set was designed especially for outdoor use.


Ensuring the smooth functioning of transceivers is the key to successful communications. The R&S®CTH100A/ R&S®CTH200A performs this type of work without requiring expert knowledge. The user can simply connect the device under test (DUT) to the R&S®CTH100A/ R&S®CTH200A and immediately begin transmitter and receiver measurements.


The R&S®CTH100A/R&S®CTH200A includes all the measurement functions needed for reliable testing of transceivers. The measurement results are clearly presented on a display that is optimized for outdoor use so the measured values are easily readable even under difficult lighting

conditions. With its high measurement accuracy and straightforward operation, the R&S®CTH100A/R&S®CTH200A delivers unrivaled performance and functionality for its class.


Extensive measurement capabilities

  • Frequency measurement
  • Power measurement
  • Over-the-air measurement (R&S®CTH200A)
  • Distance-to-fault measurement (R&S®CTH200A)
  • Voice reporting (R&S®CTH200A)


Handy and ergonomic

  • Well lit
  • Functional form
  • Standby
  • Ergonomic operation
  • Transit case


Rugged and all-weatherproof

  • Robust and shockproof
  • Splashproof
  • Wide temperature range




Frequency range

in fixed steps of 5 MHz (R&S®CTH100A),
in adjustable steps of 100 kHz/200 kHz/500 kHz/
1 MHz/ 2 MHz/5 MHz (R&S®CTH200A)

30 MHz to 512 MHz

Power level

fixed level (R&S®CTH100A)

–97 dBm


adjustable level (R&S®CTH200A)

–120 dBm to –97 dBm

FM modulation


900 Hz



150 Hz

Level uncertainty


3 dB

Power measurement

forward and reflected power

Measurement range


0.1 W to 50 W

Measurement uncertainty


20 %

Frequency measurement

Measurement range


30 MHz to 512 MHz

Measurement uncertainty


2 kHz

General data

Operating temperature range


–20 °C to +50 °C


W × H × D

102.9 mm × 202 mm × 36.8 mm
(4.05 in × 7.95 in × 1.45 in)

Weight (without batteries)


532 g (1.17 lb)



539 g (1.19 lb)