EXTRA!
list of addendum sheets for RSGB Books
Intermediate Licence - Building on the Foundation
Corrections to 5th Edition
Page 6, under ‘Circuit symbols’ in first column, second line should read ‘…in the table at the front of this book…’
Page 32, under ‘Parallel circuits’ in second column, second line of third paragraph should read ‘…50 Ohm resistor across…’
Page 43, column 1, diagram label for first Fig 58 (there are two) should read 'Fig 57a: Impedance curve...'
Page 43, column 2, line 10 should read: '...Fig 59, this means...'
Page 48, column 1, 3rd line of 4th paragraph under Batteries heading should read: ‘...found in rechargeable cells include Nickel, Cadmium and Lithium. Battery types include Nickel Cadmium (NiCad), Nickel Metal Hydride (NiMH) and Lithium ion (Li-ion)....'
Page 54, in ‘Fig 71: Block diagram of AGC’, feedback loop should join ‘AGC Circuit’ box to ‘IF Amp’ box not the ‘IF Filter’ box.
Page 58, column 1, 2nd line under Coaxial Cable heading should read '...and the photo above should refresh your memory...'
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Changes in the 5th Edition - information for those using the previous edition
The RSGB is currently shipping a corrected 5th edition of the Intermediate Licence book which incorporates the changes required to reflect the RCF Intermediate Amateur Radio Examination Specification Version 5a.
If you have a previous edition the major changes are outlined below with links to the additional pages required to cover the additional material in the new syllabus. These do not cover all of the changes included in the 5th edition but should allow tutors to assess what changes they need to make. Students who are studying on their own are recommended to obtain a copy of the 5th edition.
Most worksheets have only minor changes except where noted below. Note is also made or renumbering where appropriate.
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Worksheet 3: Conductors & Insulators
Existing material condensed as now Foundation level. New material on semi-conductors being conductors or insulators, depending on circuit configuration. Setting up of potential difference and current to make semi-conductor work is known as ‘biasing’.
Worksheet 11: Licence Conditions 1
This sheet has been significantly rewritten to clarify key points. Click here for a PDF of the revised page. [PDF file, open in its own window]
Worksheet 15: Capacitors, etc.
Worksheet split into 2; Capacitors & Inductors (old pages 27 & 28) now form New Worksheet 16 with only minor updates. Strike out Tuned Circuit material on old p29 basis of New Worksheet 18, see below.
New Worksheet 15: Alternating Current
New material has been added to the syllabus. Click here for a PDF of the new page. [PDF file, open in its own window]
Worksheet 16: Demonstrating Ohm’s Law - Renumbered as Worksheet 19
Worksheet 17: RF Oscillators - Renumbered as Worksheet 21
New Worksheet 17: Reactance & Impedance
New material has been added to the syllabus. Click here for a PDF of the new page. [PDF file, open in its own window]
Worksheet 18: Calibrating a VFO Renumbered as New Worksheet 22
An alternative VFO design is offered in case parts for book VFO are hard to find. New material has been added to the syllabus. Click here for a PDF of the alternative VFO design. [PDF file, open in its own window]
New Worksheet 18: Tuned Circuits
Content from Worksheet 15 (page 29) has been moved to this sheet and updated to include impedance curves from Advanced level. Click here for a PDF of the new page. [PDF file, open in its own window]
Worksheet 19: Semiconductors - Re-titled as ‘Diodes & Transistors’ and renumbered as Worksheet 23
Worksheet 20: Using Diodes - Renumbered as Worksheet 24
New Worksheet 20: Series & Parallel Circuits
New material has been added to the syllabus. Click here for a PDF of the new page. [PDF file, open in its own window]
Worksheet 21: Revision Questions - Renamed as Appendix 2
Worksheet 22: Transmitters - Renumbered as New Worksheet 25
Worksheet 23: Using a Transistor as a Switch - Renumbered as Worksheet 26
Worksheet 24: Licence Conditions 2 - Renumbered as Worksheet 27
Worksheet 25: Power Supplies - Renumbered as Worksheet 28
Worksheet 26: Modulation - Renumbered as Worksheet 29
Worksheet 27: Receivers - Renumbered as Worksheet 26
Figure 62 has been redrawn to show AGC feedback going to IF amp (more usual system) or RF amp (sometimes used).
Worksheet 29: Antenna Feeders - Renumbered as Worksheet 32
There is now a need to recall that 10dB loss equals loss to one tenth of original power
Worksheet 30: Antennas - Renumbered as Worksheet 33
Worksheet 31: Propagation - Renumbered as Worksheet 34
You need to note that snow, hail and heavy rain now only seen to affect UHF bands.
New Worksheet 31: Antenna Matching
New material has been added to the syllabus. Click here for a PDF of the new page. [PDF file, open in its own window]
Worksheet 32: RF Coax Connectors - Renumbered as Worksheet 35
Worksheet 33: EMC - Renumbered as Worksheet 36
Worksheet 34: Checking for Harmonics - Renumbered as Worksheet 37
Worksheet 35: Good Radio Housekeeping - Renumbered as Worksheet 38
Worksheet 36: Revision Questions 2 - Renamed as Appendix 3.
Worksheet 37: Practical Assessment - Renumbered as Worksheet 39.
Worksheet 38: Written Exam - Renumbered as Worksheet 40.
Appendix 1: Component Symbols - Moved to inside the front cover
Appendix 2: Syllabus Cross Reference - Renamed Appendix 1
Rewritten to match syllabus Version 5a. Click here for a PDF of the new page. [PDF file, open in its own window]