HW V4 / © 2005 – 2013 Aaronia AG, DE-54597 Strickscheid
4
Manual Spectran V4
Introduction
8.7.
Operation mode “Exposure limit calculation” ..................................................................... 52
8.8.
Operation mode Audio-output (demodulation) ................................................................. 54
8.9.
Operation mode broadband detector (Peak power meter) ................................................. 57
8.10.
Manual setting of a frequency range .................................................................................... 59
9.
TIPS AND TRICKS ......................................................................................... 61
9.1.
Quick Zero-span sweep (Time Domain Mode) ..................................................................... 61
9.2.
„Turbo“Sweep for small frequency ranges ......................................................................... 61
9.3.
„Turbo“Sweep for larger frequency ranges ......................................................................... 62
9.4.
Allocating keys with your own measurement settings ....................................................... 62
9.5.
Dect analysis ........................................................................................................................... 62
9.6.
Exposure limit calculation (display in W/m² with „Weak“ signals .................................... 63
9.7.
Conversion of measurement results to other units ............................................................ 63
9.8.
Correct settings for manual input/measurement ................................................................ 63
9.9.
Measurement of satellite TV .................................................................................................. 64
9.10.
Measurement with a direct cable connection ...................................................................... 64
10.
SPECTRUM ANALYSIS BASICS .................................................................. 65
10.1.
What is a frequency range? ................................................................................................... 65
10.2.
Big difference between exposure limits ............................................................................... 65
10.3.
Application of spectrum analysis ......................................................................................... 66
11.
PHYSICAL UNITS .......................................................................................... 70
11.1.
Measuring transmission power (dBm; dBµV) ..................................................................... 70
11.2.
Field strength [V/m; A/m] and power density [W/m²] .......................................................... 70
11.3.
Interesting facts regarding high-frequency formula ........................................................... 71
11.4.
Calculating the wavelength in [m] ....................................................................................... 72
11.5.
Calculating the „close-up range“ in [m] ............................................................................... 73
11.6.
Calculating power density [W/m²] from power [dBm] ......................................................... 73
12.
TABLES AND EXPOSURE LIMITS ............................................................... 74
12.1.
Convesion tables .................................................................................................................... 74
Table 1: Conversion dBm to W/m² with HyperLOG-antenna ............................................................ 74
Table 2: Conversion from W/m² to µW/cm² and mW/cm² ................................................................. 76
Table 3: Conversion from µW/cm² to V/m and A/m ........................................................................... 76
