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Key Facts: Meisterprüfung Kommunikationselektronik Exam

€0

Fee for 1st & 2nd Attempt at Modules 1, 2, 3 and Unternehmerprüfung (Federally Funded Since 1 Jan 2024)

WKO Meisterprüfungsstellen & BMAW

Level 6

NQR / EQF Qualification Level (Bachelor-Equivalent)

Nationaler Qualifikationsrahmen (NQR) Österreich

5 Modules

Examination Structure (Practical, Oral, Written, Trainer, Business)

Kommunikationselektronik-Meisterprüfungsordnung

§ 94 Z 39

Statutory Regulated Craft Listing in Austrian Trade Code (Gewerbeordnung 1994)

Gewerbeordnung 1994 (GewO 1994)

16 mm² Cu

Minimum Antenna Mast Lightning Grounding Conductor Cross-Section

ÖVE/ÖNORM EN 60728-11

4 mm² Cu

Minimum Coaxial Shield Potential Equalization Conductor Cross-Section

ÖVE/ÖNORM EN 60728-11

100 m

Maximum Channel Length for Structured Twisted-Pair Horizontal Cabling

ÖVE/ÖNORM EN 50173-1 & ISO/IEC 11801

Mst.

Legally Protected Master Craftsman Title Abbreviation

Gewerbeordnung 1994 (GewO 1994) § 21

The Austrian Meisterprüfung Kommunikationselektronik is the NQR Level 6 master craft qualification administered by the WKO across 5 modules: practical master assembly and troubleshooting, oral commission exam, written technical project planning, apprentice trainer certification, and business management.

Sample Meisterprüfung Kommunikationselektronik Practice Questions

Try these sample questions to test your Meisterprüfung Kommunikationselektronik exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A high-frequency transmitter outputs a power of 20 W into a transmission line. An inline RF attenuator introduces an insertion loss of 3 dB. What is the RF power at the output of the attenuator?

A.10 W

B.6.67 W

C.17 W

D.5 W

Explanation: A power attenuation of 3 dB corresponds to a halving of electrical power: P_out = P_in * 10^(-3/10) ≈ 20 W * 0.5 = 10 W (more precisely 10^(-0.3) ≈ 0.5012, giving 10.02 W).

2A low-noise RF preamplifier specifies a voltage gain of 20 dB across a matched 50 Ω system. By what linear factor does this amplifier multiply the input signal voltage?

A.Factor of 10

B.Factor of 20

C.Factor of 100

D.Factor of 2

Explanation: For voltage ratios, the decibel gain is defined as G_dB = 20 * log10(U_out / U_in). Therefore, U_out / U_in = 10^(20 / 20) = 10^1 = 10.

3What is the primary technical rationale for standardizing characteristic impedance at 50 Ω in wireless RF transmission lines, whereas 75 Ω is standardized in TV and broadcast distribution systems?

A.50 Ω represents the optimal trade-off between maximum RF power handling (approx. 30 Ω) and minimum dielectric loss (approx. 77 Ω), whereas 75 Ω achieves near-minimum RF signal attenuation for low-power reception.

B.50 Ω allows direct DC coupling without isolating capacitors, whereas 75 Ω creates a natural high-pass filter that eliminates 50 Hz mains hum.

C.50 Ω was selected exclusively to match the natural radiation resistance of a folded dipole, whereas 75 Ω matches a quarter-wave ground plane antenna.

D.50 Ω coaxial cables have zero skin effect at UHF frequencies, whereas 75 Ω cables require external copper plating to suppress eddy currents.

Explanation: In coaxial cables with air or polyethylene dielectric, maximum RF power-handling capacity occurs at an impedance of approximately 30 Ω, while minimum signal attenuation (loss per meter) occurs at approximately 77 Ω. The 50 Ω standard was adopted for RF transmitters and two-way radio as the ideal compromise between power handling and attenuation, while 75 Ω was adopted for broadcast receiving and CATV distribution where minimizing signal loss in low-power receiving paths is paramount.

4What is the theoretical free-space wavelength (lambda) of a radio signal transmitting at a frequency of 435.000 MHz (70 cm UHF band)?

A.68.96 cm

B.75.20 cm

C.137.93 cm

D.34.48 cm

Explanation: Wavelength in free space is calculated using lambda = c / f, where c ≈ 299,792,458 m/s (approx. 300,000 km/s). For f = 435 MHz: lambda = 300,000,000 m/s / 435,000,000 Hz ≈ 0.68965 m = 68.96 cm.

5A communications technician needs to construct a half-wave center-fed dipole antenna for a VHF emergency radio frequency of 150.0 MHz. Using an antenna velocity/shortening factor (Verkürzungsfaktor) of k = 0.95, what is the total physical end-to-end length of the dipole?

A.0.950 m (95.0 cm)

B.1.000 m (100.0 cm)

C.0.475 m (47.5 cm)

D.1.900 m (190.0 cm)

Explanation: The theoretical half-wavelength in free space is lambda / 2 = c / (2 * f) = 300 / (2 * 150) = 1.00 m. Applying the conductor shortening factor k = 0.95 gives the physical end-to-end length L = (lambda / 2) * k = 1.00 m * 0.95 = 0.95 m (95 cm, with each quarter-wave arm being 47.5 cm).

6An RF directional power meter installed on a transmitter feedline measures a forward voltage of V_fwd = 100 V and a reflected voltage of V_ref = 20 V. What is the Voltage Standing Wave Ratio (VSWR / Stehwellenverhältnis s)?

A.1.50 : 1

B.1.20 : 1

C.5.00 : 1

D.2.00 : 1

7A vector network analyzer measures an antenna port reflection coefficient magnitude of |Gamma| = 0.10 (corresponding to a VSWR of approx. 1.22:1). What is the Return Loss (Rückflussdämpfung a_r) in decibels?

A.20 dB

B.10 dB

C.14 dB

D.40 dB

Explanation: Return Loss (Rückflussdämpfung) is defined as a_r = -20 * log10(|Gamma|). For |Gamma| = 0.10: a_r = -20 * log10(0.10) = -20 * (-1) = 20 dB. This indicates that reflected power is 20 dB below forward power (1% reflected power, 99% transmitted).

8An antenna manufacturer specifies the directional gain of a Yagi antenna as 7.0 dBd (referenced to a half-wave dipole). What is the equivalent antenna gain expressed in dBi (referenced to an isotropic radiator)?

A.9.15 dBi

B.4.85 dBi

C.14.0 dBi

D.7.0 dBi

Explanation: A half-wave dipole has an inherent gain of 2.15 dB over a theoretical isotropic radiator (0 dBd = 2.15 dBi). Therefore, to convert gain from dBd to dBi, add 2.15 dB: G_dBi = G_dBd + 2.15 dB = 7.0 + 2.15 = 9.15 dBi.

9In digital communications, how many bits of binary information are transmitted per modulation symbol in a 64-QAM (Quadrature Amplitude Modulation) constellation?

A.6 bits per symbol

B.4 bits per symbol

C.8 bits per symbol

D.64 bits per symbol

Explanation: The number of bits n encoded per symbol in an M-ary modulation scheme is given by n = log2(M). For 64-QAM, n = log2(64) = 6 bits per symbol (since 2^6 = 64 distinct constellation points).

10What is the primary function of the Guard Interval (Cyclic Prefix) in Orthogonal Frequency Division Multiplexing (OFDM) transmission systems such as DVB-T2, DAB+, and Wi-Fi?

A.To prevent Inter-Symbol Interference (ISI) caused by multipath propagation and delay spread in wireless channels.

B.To provide DC power over the RF transmission line to active masthead preamplifiers.

C.To scramble the broadcast payload and prevent unauthorized decryption without a smartcard.

D.To increase the carrier frequency deviation for FM compatibility.

Explanation: In wireless environments, signals arrive at the receiver via multiple reflected paths of varying lengths (multipath propagation), causing delay spread. The OFDM Guard Interval (typically formed by copying the end of the symbol to the beginning as a Cyclic Prefix) provides a time buffer between consecutive symbols that absorbs delayed echoes, completely eliminating Inter-Symbol Interference (ISI) and preserving carrier orthogonality.

About the Meisterprüfung Kommunikationselektronik Exam

The Meisterprüfung Kommunikationselektronik is the statutory master craft qualification in Austria for communications electronics, regulated under § 94 Z 39 of the Austrian Trade Code (Gewerbeordnung 1994, GewO 1994) as a reglementiertes Gewerbe (Handwerk). Governed by the Kommunikationselektronik-Meisterprüfungsordnung of the Bundesinnung der Elektro-, Gebäude-, Alarm- und Kommunikationstechniker, it is positioned at Level 6 of the Austrian National and European Qualifications Framework (NQR/EQF Level 6, bachelor-equivalent). Passing the examination grants the legally protected title of 'Meister' (abbreviated 'Mst.') per § 21 GewO 1994 and the statutory right to operate an independent communications electronics enterprise, train apprentices, and sign off official installation test protocols. This practice bank offers an English-language MCQ study adaptation covering RF propagation, satellite and CATV broadband distribution, structured fiber and copper cabling, electroacoustics (ELA/SAA), CCTV surveillance, and Austrian electrical safety standards (ÖVE/ÖNORM E 8101 and ÖVE/ÖNORM EN 60728-11).

Assessment

Five modules under the Kommunikationselektronik-Meisterprüfungsordnung; the Meisterprüfung is the statutory Befähigungsnachweis for the Handwerk under § 20 GewO 1994 and is assigned to Level 6 of the Austrian National Qualifications Framework (NQR). Modul 1: Fachlich praktische Prüfung — Teil A 'Prüfarbeit auf Niveau der Lehrabschlussprüfung' plus Teil B 'Meisterarbeit' (complex assembly, commissioning, troubleshooting, and measurement protocols). Modul 2: Fachlich mündliche Prüfung — Teil A 'Fachgespräch auf Niveau der Lehrabschlussprüfung' and Teil B covering advanced technology, management, standards, and safety before the commission. Modul 3: Fachlich schriftliche Prüfung — comprehensive project work in technical technology, planning/schematics, and cost estimation. Modul 4: Ausbilderprüfung under §§ 29a ff BAG (or Ausbilderkurs under § 29g BAG). Modul 5: Unternehmerprüfung under the Unternehmerprüfungsordnung. Teil A of Modules 1 and 2 is credited to holders of a relevant Lehrabschlussprüfung.

Time Limit

Set per module: practical multi-day project (Modul 1), written technical calculations and planning 4–6 h (Modul 3), oral commission interview 30–60 min (Modul 2)

Passing Score

School grade scale 'Sehr gut' (1) to 'Nicht genügend' (5); a module passes when every subject is at least 'Genügend' (4), with 'mit gutem Erfolg' and 'mit Auszeichnung' as higher tiers

Exam Fee

Free for the 1st & 2nd attempt at Modules 1, 2, 3 and the Unternehmerprüfung (federally funded since 1 Jan 2024); from the 3rd attempt the Allgemeine Prüfungsordnung fee schedule applies (WKO Meisterprüfungsstellen / Bundesinnung der Elektro-, Gebäude-, Alarm- und Kommunikationstechniker)

Meisterprüfung Kommunikationselektronik Exam Content Outline

20% of this practice bank

High-Frequency & Wireless Systems (HF- & Funktechnik)

RF propagation, modulation techniques (AM, FM, QAM, OFDM, PSK), antenna theory and parameters (gain, radiation patterns, VSWR, return loss, impedance matching), transmission line theory, and wireless communication standards (PMR, DMR, TETRA, Wi-Fi 6, 5G NR).

20% of this practice bank

Antenna Systems & Broadcast Networks (Antennen- & Breitbandnetze)

Satellite reception systems (DVB-S/S2, Universal LNB LO frequencies, polarization, SCR/Unicable EN 50494/EN 50607), terrestrial & cable broadcast (DVB-T2, DVB-C), CATV/SMATV distribution networks, amplifiers, tap-offs, splitters, decibel levels (dBµV, dBm), and lightning protection & potential equalization per ÖVE/ÖNORM EN 60728-11.

20% of this practice bank

Telecommunications & Network Infrastructure (Netzwerktechnik & LWL)

Structured premises cabling per EN 50173 / ISO/IEC 11801 (Cat 6A to Cat 8), fiber optics (single-mode OS2 vs multi-mode OM3–OM5, OTDR trace analysis, optical attenuation budgets, connector polish UPC/APC), IP networking, VLANs (802.1Q), PoE standards (802.3af/at/bt), and VoIP/SIP telephony.

20% of this practice bank

Audio/Video, Electroacoustics & Security (Audio/Video, ELA & CCTV)

100-Volt constant voltage audio distribution (impedance matching, power tapping), voice alarm systems (SAA/ELA per EN 54-16, EN 54-24, ÖNORM F 3033, STI intelligibility), balanced audio, IP video surveillance (CCTV per EN 62676, lens focal length, DORI criteria, H.264/H.265, WDR), and electronic access control / intercom systems.

20% of this practice bank

Circuit Diagnostics, Measurement & Regulations (Messtechnik, Schaltung & Recht)

Power supplies (linear vs SMPS buck/boost), active/passive filtering, digital oscilloscope measurements (rise time, bandwidth, Nyquist sampling), spectrum/network analyzers, Austrian electrical safety (ÖVE/ÖNORM E 8101 protection classes, RCD types, 5 safety rules per ÖVE EN 50110-1), and GewO 1994 trade regulations.

How to Pass the Meisterprüfung Kommunikationselektronik Exam

What You Need to Know

Passing score: School grade scale 'Sehr gut' (1) to 'Nicht genügend' (5); a module passes when every subject is at least 'Genügend' (4), with 'mit gutem Erfolg' and 'mit Auszeichnung' as higher tiers
Assessment: Five modules under the Kommunikationselektronik-Meisterprüfungsordnung; the Meisterprüfung is the statutory Befähigungsnachweis for the Handwerk under § 20 GewO 1994 and is assigned to Level 6 of the Austrian National Qualifications Framework (NQR). Modul 1: Fachlich praktische Prüfung — Teil A 'Prüfarbeit auf Niveau der Lehrabschlussprüfung' plus Teil B 'Meisterarbeit' (complex assembly, commissioning, troubleshooting, and measurement protocols). Modul 2: Fachlich mündliche Prüfung — Teil A 'Fachgespräch auf Niveau der Lehrabschlussprüfung' and Teil B covering advanced technology, management, standards, and safety before the commission. Modul 3: Fachlich schriftliche Prüfung — comprehensive project work in technical technology, planning/schematics, and cost estimation. Modul 4: Ausbilderprüfung under §§ 29a ff BAG (or Ausbilderkurs under § 29g BAG). Modul 5: Unternehmerprüfung under the Unternehmerprüfungsordnung. Teil A of Modules 1 and 2 is credited to holders of a relevant Lehrabschlussprüfung.
Time limit: Set per module: practical multi-day project (Modul 1), written technical calculations and planning 4–6 h (Modul 3), oral commission interview 30–60 min (Modul 2)
Exam fee: Free for the 1st & 2nd attempt at Modules 1, 2, 3 and the Unternehmerprüfung (federally funded since 1 Jan 2024); from the 3rd attempt the Allgemeine Prüfungsordnung fee schedule applies

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Meisterprüfung Kommunikationselektronik Study Tips from Top Performers

1Master decibel and RF calculations: be proficient in converting between power ratios (10*log10(P1/P2)), voltage ratios (20*log10(U1/U2)), dBm (referenced to 1 mW across 50 Ω or 75 Ω), and dBµV (referenced to 1 µV across 75 Ω, where U[dBµV] = P[dBm] + 108.75 dB).

2Memorize the grounding requirements in ÖVE/ÖNORM EN 60728-11: a minimum 16 mm² Cu grounding conductor for antenna masts outside the protected zone, and a minimum 4 mm² Cu bonding conductor for coaxial cable shield earthing blocks connected to the Haupterdungsschiene.

3Understand 100-Volt constant voltage electroacoustics: calculate nominal load impedance using Z = U^2 / P (e.g., a 100V line carrying 100 W total loudspeaker load presents an impedance of Z = 10,000 / 100 = 100 Ω), and verify line surveillance via 20 kHz pilot tone methods.

4Review optical fiber link loss budget calculations: multiply route length by wavelength-specific fiber attenuation (e.g., 0.35 dB/km at 1310 nm, 0.22 dB/km at 1550 nm for OS2 single-mode) and add fusion splice losses (~0.05 dB each) plus connector insertion losses (~0.2–0.5 dB per mated pair).

5Study structured cabling standards according to EN 50173: memorize the 90 m permanent link and 100 m channel limits for horizontal twisted-pair cabling, frequency ratings (Cat 6A up to 500 MHz for 10GBASE-T, Cat 7 up to 600 MHz, Cat 8 up to 2000 MHz), and shielding designations (S/FTP, F/UTP, U/UTP).

6Know the five safety rules for electrical work under ÖVE EN 50110-1 in their exact sequence: 1. Freischalten, 2. Gegen Wiedereinschalten sichern, 3. Spannungsfreiheit allpolig feststellen, 4. Erden und Kurzschließen, 5. Benachbarte unter Spannung stehende Teile abdecken oder abschranken.

Frequently Asked Questions

What is the Meisterprüfung Kommunikationselektronik in Austria?

The Meisterprüfung Kommunikationselektronik is the official master craftsman qualifying examination in Austria for the communications electronics trade, listed under § 94 Z 39 of the Austrian Trade Code (Gewerbeordnung 1994, GewO 1994) as a regulated craft (reglementiertes Handwerk). Administered by the Meisterprüfungsstellen of the Austrian Economic Chambers (WKO), it qualifies individuals at Level 6 of the National Qualifications Framework (NQR/EQF Level 6, equivalent to a Bachelor's degree), conferring the legally protected title of 'Meister' (Mst.) and granting the statutory authority to establish an independent enterprise, train apprentices, and certify communications installations.

What are the 5 modules of the Austrian Kommunikationselektronik Meisterprüfung?

The examination consists of 5 modular components: Modul 1 is the practical examination (Teil A work sample at apprenticeship level and Teil B master project in assembly, commissioning, troubleshooting, and test protocols); Modul 2 is the oral examination (Teil A basic technical dialogue and Teil B advanced technical mastery, safety, and management before the commission); Modul 3 is the written theoretical examination (technical planning, schematics, and calculations); Modul 4 is the Ausbilderprüfung (apprentice trainer exam under the Berufsausbildungsgesetz); and Modul 5 is the Unternehmerprüfung (business management, tax, and commercial law). Holders of a relevant Lehrabschlussprüfung are credited with Teil A of Modules 1 and 2.

What lightning protection and earthing rules apply to antenna systems in Austria?

Under ÖVE/ÖNORM EN 60728-11, roof-mounted antenna systems installed outside the protected building zone must be grounded with a dedicated conductor having a minimum cross-section of 16 mm² copper (Cu), 25 mm² aluminum (Al), or 50 mm² steel, routed directly to the earth-termination system. Additionally, the outer conductors (shields) of all incoming and outgoing coaxial cables must be integrated into the equipotential bonding system using at least a 4 mm² Cu conductor connected to the main earthing busbar (Haupterdungsschiene), ensuring grounding is maintained even if devices are removed.

How much does the Austrian Meisterprüfung cost?

Since 1 January 2024 (applied retroactively to 1 July 2023), the Austrian federal government covers 100% of the examination fees for the first and second attempt at Modules 1, 2, 3 and the Unternehmerprüfung, making those attempts free of charge (€0) for candidates. From the third attempt onwards, examination fees are levied under the Allgemeine Prüfungsordnung (BGBl. II Nr. 110/2004) and calculated by the responsible provincial Meisterprüfungsstelle.

What standards govern voice alarm and public address systems (ELA/SAA) in Austria?

Electroacoustic emergency warning and voice alarm systems in Austria are governed by ÖNORM F 3033, EN 54-16 (voice alarm control and indicating equipment), and EN 54-24 (loudspeakers), alongside EN 50849 for sound systems for emergency purposes. Systems must maintain constant line surveillance (using EOL impedance monitoring or an inaudible 20 kHz pilot tone) and achieve a minimum Speech Transmission Index (STI) of at least 0.50 (or CIS equivalent 0.70) in all required acoustic zones.

How does this practice question bank adapt the Austrian Meisterprüfung?

The official Austrian master craftsman examination is conducted in German and consists of practical master projects, written technical calculations, and an oral commission interview. This practice question bank is an English-language multiple-choice study adaptation designed to reinforce theoretical concepts, mathematical formulas, network design principles, and Austrian/European regulatory standards (such as ÖVE/ÖNORM E 8101, EN 60728-11, EN 50173, and GewO 1994) while preserving authentic technical terminology.