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Digital High Frequency Analyser HF58B-r

HF58B-r

HF-Analyser for Frequencies from 800 MHz

to 2.5 GHz

(to 3.3 GHz with additional tolerance)

Instruction Manual

Revision 4.5

This manual will be continuously updated, improved and

expanded. You will find the current version at your local

distributors homepage or at www.gigahertz-solutions.de

Please carefully review the manual before using the device. It

contains important advice for use, safety and maintenance of

the device. In addition it provides the background information

necessary to make reliable measurements.

in part or total without editor’s written permission.

Professional Technology

With the HF analyzers, GIGAHERTZ SOLU-

TIONS

sets new standards in HF testing.

Professional measurement engineering is

offered with a unique price/performance ratio

- the only one of its kind worldwide. This was

made possible through the consistent use of

innovative integrated components, as well as

highly sophisticated production engineering.

Some features have patents pending.

The HF analyzer you purchased allows a

competent assessment of HF exposures be-

tween 800 MHz and 2.5 (3.3) GHz. From a

building biology perspective, this particular

frequency range is particularly relevant be-

cause cellular phones, cordless phones, mi-

crowave ovens as well as next-generation

technologies such as UMTS/3G or Bluetooth

and WLAN all make extensive use of it.

We appreciate the confidence you have

shown in purchasing this HF Analyzer. With

the confidence that your expectations will be

met, we wish you great success in collecting

valuable information with this HF analyzer.

If you should encounter any problems,

please contact us immediately. We are here

to help.

Canada and U.S.:

Enviratest Inc.

8 Settlers Court, Morriston, On, N0B 2C0

www.enviratest.com

Other:

GIGAHERTZ SOLUTIONS GmbH, Germany

90579 Langenzenn

www.gigahertz-solutions.de

Contents

Functions & Controls 2

Getting Started 3

Introduction to Properties and

Measurement of HF Radiation 4

Step-by-Step-Instruction

to HF-Measurement 5

Limiting values, recommendations

and precautions 11

Audio Frequency Analysis 12

Analysis of the modulated / pulsed signal 13

Use of Signal Outputs 13

Battery management 14

Remediation and Shielding 15

Warranty 15

Conversion tables 16

Safety Instructions:

It is imperative to carefully study the instruction manual prior

to using the HF analyzer. Important information regarding

safety, use and maintenance is provided herein.

The HF analyzer should never come into contact with water or

be used outdoors during rain. Clean the case only from the

outside, using a slightly moist cloth. Do not use cleaners or

sprays.

Prior to cleaning the HF analyzer or opening the case, shut it

off and unplug all extension cords. There are no user-

serviceable parts inside the instrument.

Due to the high sensitivity level, the electronics of the HF

analyzer are very sensitive to heat, impact as well as touch.

Therefore do not leave the instrument in the hot sun, on a

heating element or in other damaging environments. Do not let

it drop or try to manipulate its electronics inside when the

case is open.

This HF analyzer should only be used for the purposes de-

scribed in this manual and only in combination with supplied

or recommended accessories.

Summary of content (16 pages)

PAGE 1
Digital High Frequency Analyser HF58B-r HF58B-r HF-Analyser for Frequencies from 800 MHz to 2.5 GHz (to 3.3 GHz with additional tolerance) Instruction Manual Revision 4.5 This manual will be continuously updated, improved and expanded. You will find the current version at your local distributors homepage or at www.gigahertz-solutions.de Please carefully review the manual before using the device. It contains important advice for use, safety and maintenance of the device.
PAGE 2
Digital High Frequency Analyser HF58B-r Functions and Controls 1) Volume control for the audio analysis. 2) Jack, 3.5 mm : AC output for the modulated part of the signal, for Audio analysis via PC or headset. 3) Jack, 12 – 15 Volt DC for charging the battery. AC adapter for 230 Volt/50 Hz and 60 Hz is included. For other Voltages/Frequencies please get an equivalent local AC adaptor with the output parameters 12 – 15 Volt DC / >100mA.
PAGE 3
Digital High Frequency Analyser HF58B-r Long and short switches Some of the switches are recessed in the casing of the instrument to avoid unintentional switching for rarely used functions Contents of the package Instrument Attachable antenna NiMH rechargeable Batteries (inside the meter ) AC-Adaptor Several Adaptor-connectors Comprehensive instruction manual This SMA connector has gold-plated contacts is the highest quality commercial HF connector in that size.
PAGE 4
Digital High Frequency Analyser HF58B-r Introduction to Properties and Measurement of HF Radiation This instruction manual focuses on those properties that are particularly relevant for measurements in residential settings. Across the specified frequency range (and beyond), HF radiation causes the following effects in materials exposed to it: 1. Partial Permeation 2. Partial Reflection 3. Partial Absorption.
PAGE 5
Digital High Frequency Analyser HF58B-r sion of testing uncertainties to the specified accuracy of the used HF analyzer due to the narrowness of indoor spaces. According to the “theory“ quantitatively accurate HF measurements are basically only reproducible under so-called “free field conditions”, yet we have to measure HF inside buildings because this is the place where we wish to know exposure levels.
PAGE 6
Digital High Frequency Analyser HF58B-r horizontally isotropic ultra broad band aerial down to 27 MHz, the UBB27 In order to measure frequencies below 800 MHz down to 27 MHz the instruments HFE35C and HFE59B are available from Gigahertz Solutions. They come with an active horizontally isotropic ultra broad band aerial down to 27 MHz, the UBB27 Measurements for a Quick Overview This is helpful to gain insight into the overall situation.
PAGE 7
Digital High Frequency Analyser HF58B-r Rules of thumb for the interpretation of the results Readings in the two adjacent sensitivity ranges “Medium” and “Coarse” use the one with the higher value. Numbers below 0.05 mW/m² shown in the range “Coarse” are within the range of its potential zero bias. Use the reading shown in range “Medium”. For comparative measurements (before / after shielding) use the same range selector position when possible.
PAGE 8
Digital High Frequency Analyser HF58B-r In everyday measurement practice this function has great value. The peak value is related to the actual signal situation. This is important because the immission situation can change rapidly with time, direction of the radiation, polarization, and the points of measurements.. The “Peak Hold” mode guarantees that you do not miss single peaks. The tone signal works independently of data collection in the peak hold mode.
PAGE 9
Digital High Frequency Analyser HF58B-r Quantitative Measurement: Determination of Total High Frequency Pollution As described in Getting Started, attach the LogPer antenna to the HF analyzer. Hold the HF analyzer with a slightly outstretched arm because objects (mass) directly behind it “like yourself”, have effects on the testing result. Your hand should not get too close to the antenna, but should be near the bottom end of the instrument.
PAGE 10
Digital High Frequency Analyser HF58B-r Quantitative Measurement: Special Case 2: Radar For air and sea navigation a radar antenna slowly rotates around its own axis, thereby emitting a tightly bundled “radar ray“. Even with sufficient signal strength, this ray can only be detected every couple of seconds, for a few milliseconds. This requires special measurement technology. The HF58B-r with its video bandwidth of 2 MHz provides this technology.
PAGE 11
Digital High Frequency Analyser HF58B-r µW/m² outside buildings. In view of the shielding properties of normal building materials, far lower values exist inside buildings. In February 2002 the Medical Authority of the Federal State Salzburg, Austria, recommends to reduce its “Salzburger Precautionary Recommendation” from 1 000 µW/m² to 1 µW/m² inside buildings and 10 µW/m² outside. These limits are based on empirical evidence over the past few years.
PAGE 12
Digital High Frequency Analyser HF58B-r ing HF sources can be easily identified: 2.4GHz telephones (base station and handset) as well as cellular phones, the signal patterns of which can be divided into “a live connected phone call“, “stand-by mode“ and especially the “establishing of a connection“. The typical signal patterns of a cellular phone base station can also be identified this way.
PAGE 13
Digital High Frequency Analyser HF58B-r Further Analysis / Optional Accessories: Gigahertz Solutions offers a range of preamplifiers and attenuators, to widen the range of power densities which can be processed with this instrument, See section Quantitative Measurement. Furthermore there are two variable frequency filters (“variable traps”) for quantitative separation between different sources of radiation.
PAGE 14
Digital High Frequency Analyser HF58B-r Changing the rechargeable Battery Remediation and Shielding The battery compartment is at the back of the analyzer. To remove the lid, press on the grooved arrow and pull the cap off. Insert only rechargeable batteries. If you use regular alkaline (non – rechargeable) batteries do not use a charger or AC-adapter! Please call us or send us an e-mail.
PAGE 15
Digital High Frequency Analyser HF58B-r Warranty We provide a two year warranty on factory defects of the HF analyzer, the antenna and accessories. Antenna Even though the antenna appears to be rather delicate, it is made from a highly durable FR4 base material that can easily withstand a fall from table height. HF Analyzer The analyzer itself is not impact proof, due to the comparatively heavy battery and the large number of wired components.
PAGE 16
Digital High Frequency Analyser HF58B-r Conversion Table Measurement ranges of the HF58B-r Bar on LCD ( µW/m² to V/m ) Range Coarse Medium Fine Instrument as delivered, i.e. without preamplifier or attenuator switch "Adapter"("Pegelanpassung") to "0 dB" Displayed value & unit 0.01 - 19.99 mW/m² 00.1 - 199.9 µW/m² 0.01 - 19.99 µW/m² Bar on LCD Simply read out, no correction factor Range Coarse Medium Fine With ext.