📻 CQ PE1NAO (Netherlands · JO32) on 7.075 MHz FT8 at 12:51 UTC
Full Level: Propagation
Full Level: Propagation
Part of the official RSGB Full Level question bank, filtered to the Propagation syllabus section.
40 questions in this section
Some questions include a reference diagram or circuit image
Full Level - Syllabus V1.6b
Before you start, you may want to open the official RSGB reference data sheet
(band plans, frequency tables, conversions) — it's allowed for use during the real exam too.
🔀 Practice Mode — random question, not scored. Click an option to reveal the answer.
2025-Full3673
Which drawing correctly shows an electromagnetic wave?
2025-Full3806
Why is circular polarisation advantageous when communicating through or with a satellite?
2025-Full617
Circular polarisation is characterised by the electric and magnetic fields
2025-Full782
When an antenna is using right-handed circular polarisation
2025-Full852
When using circular polarisation The E and H fields of an electromagnetic wave are:-
2025-Full3674
Which statement about antenna polarisation offers the best advice?
2025-Full3730
If the distance between transmitting and receiving antennas in free space is doubled, the power flux density at the receiving antenna changes by
2025-Full3732
Under 'free space conditions' electromagnetic waves travel according to an inverse square law of power flux density. Such a statement means that the power flux density
2025-Full3760
Under free space conditions electromagnetic waves
2025-Full3797
The Maximum Usable Frequency (MUF)
2025-Full6031
A higher sunspot number is often an indication of
2025-Full6032
What effect does the presence of sunspots have on HF propagation?
2025-Full6033
A Dellinger fade-out or Sudden Ionospheric Disturbance is normally associated with
2025-Full6035
The Critical Frequency
2025-Full6036
The mode of propagation known as NVIS is normally used for
2025-Full6037
NVIS contacts are usually possible
2025-Full6039
The polarisation of HF antennas is of lesser concern than VHF and UHF antennas because
2025-Full6040
A feature of EME propagation is
2025-Full6042
Auroral propagation
2025-Full6043
An amateur in the Orkney isles north of the Scottish mainland is in VHF contact with an amateur in Tromso in Northern Norway. There is a rapid flutter on the signal. This is typical of
2025-Full6044
The rapid fluttering typical of VHF auroral contacts is caused by
2025-Full620
The electric field strength of radio frequency electromagnetic radiation is measured in
2025-Full624
At a distance from a transmitter the power flux density (PFD) is 1W/m² and the electric field strength (FS) is approximately 20V/m. At twice that distance the PFD is
2025-Full627
When travelling away from a transmitter on clear ground, it is noted that the field strength has halved. The power flux density can be expected to
2025-Full648
The Critical Frequency is the
2025-Full650
The Critical Frequency will
2025-Full652
The maximum usable frequency (MUF) undergoes both daily and annual changes. The lowest MUF over a particular path normally occurs in the
2025-Full653
During the summer the
2025-Full7752
Which one of the items below SHOULD NOT be included when calculating a link budget?
2025-Full7758
The polarisation of an HF antenna is less significant than VHF or UHF antennas because
2025-Full7802
What effect does the presence of sunspots have on HF propagation?
2025-Full7805
The mode of propagation known as NVIS is normally used for
2025-Full7810
A large solar flare will
2025-Full7811
An ionospheric fade-out or Sudden Ionospheric Disturbance is normally caused by
2025-Full7812
The polarisation of HF antennas is less of a concern than VHF and UHF antennas because
2025-Full7818
Galactic noise is
2025-Full7925
It is noticed that on 2m switching from a vertical to horizontal antenna causes a loss of signal of almost 20dB. However, on a long-distance HF contact it makes relatively little difference. This is probably because
2025-Full7926
What is the basis of auroral propagation?
2025-Full8122
Which factor is likely to affect a UHF link budget
2025-Full8123
Which action could be employed to optimise a wireless link budget?
