ARRL

ARRL Handbook Reference

ARRL Handbook

This web page is for information that extends or supports the ARRL Handbook beginning with the 2011 edition.  The section for each edition contains links to supplemental files and software, non-ARRL documents, and errata and corrections. To purchase the book, click here or browse to the ARRL Store where you can also find numerous other technical references from the ARRL, RSGB, and other sources.

Errata are listed by the edition for which the errata was reported.  Earlier editions may contain the same error.

Printed-circuit boards for many current and previous Handbook projects are available from FAR Circuits.

ARRL Handbook Edition

  • 2011 Edition - Errata

    Errata by Chapter


    In the table of schematic symbols, the vacuum tube symbol labeled "Twin Triode" is actually that of a "Twin Tetrode".

     

    Page 2.3 – In the sidebar “The Origin of Unit Names”, change George Simon Ohm to Georg Simon Ohm

    Page 2.4 – In the second line of equation 5, change the number 5.57 x 10-3 to 3.57 x 10-3

    Page 2.12 – Preceding section 2.4.4, rewrite equation to read 381 W / 746 W/hp = 0.51 horsepower (hp)

    Page 2.32 - In Equations 55 and 56, move pi to the denomenator

    Page 2.74 – In the last paragraph of first column, change 53.1° to 57.3°

    Page 2.75 – The third equation should be 3 (angle symbol) 60° = 1.5 + j2.6


     

    Page 3.35 – At the bottom of first column, step 2, change equation reference from 27 to 24

    Page 3.35 – At the bottom of first column, step 3, change equation reference from 25 to 22 and change 6RC=1.75 kohms to 6RE=1.75 kohms

    Page 3.45, Figure 3.64 – swap the + and – inputs of the right-hand op amp so that the – input is the uppermost input.

    Page 3.54, Figure 3.86 – change the left-hand input voltage from VOUT to VREF.

    Page 3.54 – bottom of middle column – change last complete sentence to read “…...differ by a factor of 2048, which is 212-1.”


     

    Figure 4.14 – Change the symbol at (C) to the standard NOR gate as in the top symbol in Figure 4.9.

    Table 4.8 – Remove the “bubble” from all three Q-not outputs.  The symbols should look like those in figures 4.18/19/20.

    Page 4.22, Right column, second paragraph – change the first sentence to read “Fig 4.35 shows a circuit implemented with …”


     

    Section 5.3.4, third paragraph - Change the calculation of RF resistance as follows, “…the RF resistance will be approximately 1.06 milliohms x 3.23 = 1.06 milliohms x 32.8 = 34.8 milliohms.”

    Section 5.9.2, third column, first paragraph - Change “RL = 10 = 0.5 = 9.5 dB” to “RL = 10 – 0.5 = 9.5 dB” (swap in a minus sign for the equals sign)

    Figure 5.57 – in (B) and (C) reverse the shaded and unshaded areas. ZDEV should be in the unshaded area on all charts. 


     

    Figure 6.1 – In the caption, change Q1 to Q7 and Q2 to Q8 for agreement with the figure.


     

    Fig 12.23 – Change the RF In connector at lower left to female equivalent.

    Fig 12.24 – Exchange pin numbers for + and – inputs to U5B at lower right. i.e. the + input should be pin 5 and the – input should be pin 6


     

    Fig 13.45 - The reference to Fig 14.75 at the connection to R4 (top of figure) should be to Figure 13.48.

    Fig 13.48 - The reference to Fig 14.72 at the connection to D1/R6 (lower left of figure) should be to Figure 13.45.

    Fig 13.22(B) – Change both filters between the balanced modulators to show a bandwidth of “DC to BW/2"


     

    Figure 17.44 - Move S2 (at bottom of drawing) from the neutral circuit (as shown) to the hot circuit between F1 and T2.

    Figure 17.45 - Add to parts list, “D1-D4 – SMT silicon PN-junction diodes such as 1N4148 or equivalent”; In the parts list, change the part number for T3 to 2861010002 (i.e. – remove one zero before the final 2)

    Figure 17.57 - Change the part label for C204 to C205 on the output Pin 3 of U2 (7812); Change the part label for D208 to D210 on the collector of Q201; Change the label of Q101 (middle of drawing) from 2N3055 to MJE3055. In the parts list entry beginning D101, change D205-D209 to D205-D210; Change the part number of Q101 from 2N3055 to MJE3055; In the entries for RFC101, RFC103, and T2 – change “www.pwdahl.com” to “(See text)”

    Figure 17.58 - In the parts list entry for T1, change the part number text in parentheses to read “…PT-3100, see text).”

    Figure 17.59 – in the caption, change “Peter W. Dahl” to “high-voltage”.

    Figure 17.63 – in the parts list entry for T1, change part number text in parentheses to read “…ARRL-002, contact Harbach Electronics, www.harbachelectronics.com, for equivalent parts).”


     

    Page 20.3 – Change formula (4) and following description of variables to Z0=(120/sqrt(epsilon) cosh-1(S/d). Where Z0 = characteristic impedance, S = center to center distance between the conductors, and d = diameter of conductors in the same units as S.  When S >> d, the approximation Z0 = 276 log10 (2S/d) may be used but for S < 2d gives values that are significantly higher than the correct value, such as is often the case when wires are twisted together to form a transmission line for impedance transformers.

     

    Table 20.5 - Examples 1, 2, and 3 correspond to Figure 20.16 A, B, and C.


     

    Table 21.20 – In the 306-06 section of the table, Dir 1 should be 42 inches from the reflector (1st column) , not 66 inches.


     

    Table 22.18 – Under the formula N = 1000…, change the parameter description to read “…L = desired inductance (mH); AL = inductance index (mH per 1000 turns)

    Table 22.64 – Remove formulas at the bottom of the table

    Figure 22.11 – In part (C), in the far right column showing multiplier values for tantalum capacitors, change the multiplier value for White from “x 0.01” to “x 0.1”


      

    Figure 24.12 – Change J1 to female connector symbol

    Figure 24.32 – Change both J1 and J2 to female connector symbol

    Figure 24.37 – Exchange the designators for R3 and R4 so that R3 is connected to pin 4 of U1 and 11 of U5 and that R4 is connected to pin 4 of U2 and pin 10 of U5.

    Figure 24.45 - For the Yaesu Adapter (B), pin 4 of the mini-DIN plug should connect to pin 2 of J3 and pin 5 of the mini-DIN plug should connect to pin 1 of J3.  The ground connection (pin 3 of both connectors) is correct.


     

     

    Figure 26.30 – reverse the polarity + and – symbols for both meters and reverse the direction of the current arrows.


     

  • 2011 Edition - Supplemental Information and Files

    This section contains additional information and files to supplement the material in the book.


    Chapter 9 - Oscillators and Synthesizers

     

    Slow-motion drives and variable capacitors are available from QST advertiser National RF (www.nationalrf.com), Dan's Small Parts and Kits (www.danssmallpartsandkits.net), and Antique Electronic Supply (www.tubesandmore.com).


    Chapter 12 - Receivers

     

    The CAD files provided by N1UL for the 2 meter converter design are OrCAD files.


    Chapter 17 - RF Power Amplifiers

     

    Figure 17.36 - this is a simplified schematic of a grounded-grid amplifier and omits bandswitch and cathode dc retun circuits.

    Page 17.36, bottom of middle column – Change paragraph on 25-ohm coax to read, “Coax with this characteristic impedance is not a common stock item but it is available as p/n D260-4118-0000 from Communications Concepts, Inc. (www.communication-concepts.com)  Two feet are required.  An acceptable alternative is #22 shielded 600-V Teflon-insulated wire such as Belden 83305-E whose physical dimensions result in approximately the same characteristic impedance."

    Page 17.37, second paragraph of Thermal Compensation – Change to read “…(D1-D4, any silicon PN-junction diode in a suitable SMT package will work). Mounted…”

  • 2012 Edition - Errata

    In the table of schematic symbols, the vacuum tube symbol labeled "Twin Triode" is actually that of a "Twin Tetrode".

     

    Chapter 2 - Electrical Fundamentals

     

    Section 2.2.4 - Resistance of Wires: The value of resistance for #28 wire is 65.31 ohms / 1000 ft, not 66.17 ohms.  In equation 4, that changes the length of wire required from 53 ft to 55 ft.  In equation 6, the length of wire required is 10.5 ft.

     

    Section 2.3.2, page 2.7 - Current Dividers: the formula for current division is wrong.  The correct formula for current through one resistor (Rn) in a group of parallel resistors whose parallel resistance (Rpar) is:

    In = I (Rpar / Rn), where I = total current through the entire group

    In the Handbook example, the current through R2 would then be (// denotes "in parallel with"):

    I2 = 100 mA (100 // 50 // 200) / 50 = 100 mA ( 28.6 / 50) = 57.1 mA

    An online tutorial on current division can be found at www.wisc-online.com/objects/ViewObject.aspx?ID=DCE3502

     

    Page 2.48 - Equation 105 is missing.  It should be P = Apparent power x Power factor.

     


     

    Chapter 5 - RF Techniques


    Page 5.6 - In the first full paragraph of the right-most column, the value of L should be 33 micro-henries, not milli-henries, showing the micro (mu) symbol and not the milli (m) symbol.

     


     

     

    Chapter 13 - Transmitters

     

    Fig 13.45 - The reference to Fig 14.75 at the connection to R4 (top of figure) should be to Figure 13.48.

    Fig 13.48 - The reference to Fig 14.72 at the connection to D1/R6 (lower left of figure) should be to Figure 13.45.

     


     

    Chapter 20 - Transmission Lines

     

    Table 20.5 - the Examples 1, 2, and 3 correspond to Figure 20.16 A, B, and C.

     


     

    Chapter 22 - Component Data and References

     

    Fig. 22.23 - N connector assembly: For assembly of the common 82-202-RFX version of the N connector, dimension a should be 0.315 in for a and 0.177 in for c.  www.AmphenolRF.com should be consulted for exact assembly instructions of any Amphenol connector.  The dimensions in the table are for Amphenol connectors only.

     


     

    Chapter 24 - Station Accessories

     

    Figure 24.45 - For the Yaesu Adapter (B), pin 4 of the mini-DIN plug should connect to pin 2 of J3 and pin 5 of the mini-DIN plug should connect to pin 1 of J3.  The ground connection (pin 3 of both connectors) is correct.

     


     

    Chapter 25 - Test Equipment and Measurements

     

    Page 25.2, beginning of section 25.2: '... the abbreviation dc generally refers to dc currents and voltages
    that remain stable...'  Remove the second 'dc' before 'currents'.

    Page 25.7, equation at top of first column: Change the 'IM' in the numerator to make the 'M' a subscript.

    Page 25.7, equation at bottom of first column: Change the numerator from 'FS' to 'VFS' with the 'FS' a subscript.

    Page 25.25, third column, second full paragraph: 'Some require an external sweep oscillator and while others include an internal signal source.'  Remove the 'and'.
     

    Logic Probe - 25.8.2

    Page 25.40, Fig 25.61: The label after the large 'A' that says 'Low always' should read '"Anode"' (with quotation marks)
     

    Two-Tone Oscillator - 25.8.6

    All references to "Wein" should be "Wien".

    Page 25.44, Fig 25.68: The inverting and non-inverting input symbols (+ and -) are reversed on U1A, U1B, U2A, and U2B.  The pin numbers are correct, however.

    Gate-Dip Oscillator - 25.8.13

    The artwork supplied from the author had the silkscreen labels reversed which could lead to reversing the trace layers by a PCB fabricator.  The correct artwork is available in the file Bloom_GDO.zip.

    Page 25.51, Fig 25.83 parts list: M1 should be a 0-200 uA meter

    RF Power Meter - 25.8.14

    The article by Kaune, William T., W7IEQ, "A Modern Directional Power/SWR Meter" is missing from the Supplemental Files section of the Handbook CD-ROM. You can download the article in PDF format here.

  • 2012 Edition - Supplemental Information and Files

    Chapter 9 - Oscillators and Synthesizers

     

        Regarding FET bias in Hartley VFOs, a reader notes that the clamping or limiting gate diode has been removed to reduce oscillator noise and in some cases has been replaced by a source bias resistor-capacitor combination.  Are there standard values for the resistor and capacitor or are they dependant on the
    frequency of interest and is there a value-determining formula?

        The gate diode in FET oscillators was originally put in place to limit the VFO output amplitude by preventing the gate-source junction from becoming conductive or by cutting off peaks of the signal. (depending on the device and circuit design) Ulrich Rohde N1UL showed this to be unnecessary and that the diode actually worsened phase noise, particularly close to the oscillator frequency. The solution is to bias the transistor so that collector or source current just goes to zero over part of the cycle in order to limit gain.  i.e. higher gain would cause zero current over a larger portion of the cycle so there is a maximum signal level reached and no additional gain is available. The design of the biasing network depends on the transistor and the frequency of operation - just as in an amplifier. So no, there is no cookbook solution on this topic - the math involved is ferocious if you want to get to a closed-form solution. A more practical approach is to start with similar designs and then either empirically adjust the biasing components for desired performance or use a simulation program such as SPICE or Ansoft Designer (which has a demo version) to get the necessary performance.
         A text that goes into some detail on oscillator design is "Microwave and  wireless synthesizers: theory and design" by Rohde which is available used.  He also wrote a series of articles on oscillators by Rohde in Dec 93 through  Feb 94 and Oct 94 QEX - all detailed and good reading.
     


     

    Chapter 17 - RF Power Amplifiers

    Figure 17.36 - this is a simplified schematic of a grounded-grid amplifier and omits bandswitch and cathode dc retun circuits.

     


     

    Chapter 21 - Antennas

    Bill Wortman, N6MW has reworked the GAMMA program provided as a supplement to the Antenna Book and  useful to readers of the ARRL Handbook and Low-Band DXing by ON4UN, as well.  The previous version of GAMMA failed to find solutions to the calculations when the combination of the desired feed line impedance exceeds the product of the raw antenna resistance and the gamma step-up value.  The new code fixes that problem.

     

    Click on the program name to download the new program as a zip file, GAMMAMW4.  It is a simple text-based application that runs in a command prompt (C:\) window and does not require a full Windows installation procedure.  Unzip (extract) the program and double-click it to launch it.

     

    To use the program, you will need to know:
    - frequency of operation in MHz
    - feed point impedance of the antenna's driven element in R + jX form
    - feed line characteristic impedance
    - the driven element diameter (D)*
    - the gamma rod diameter (d)*
    - spacing between the outer surfaces of the driven element and the gamma rod (S)*

    Enter these values and the program will provide complete outputs including supporting parameters.  * - all dimensions must be in the same units, typically inches or cm.

     

    The ARRL extends its thanks to N6WM for his contribution, as well as to Greg Ordy W8WWV for making some tests of the code.
     

     


     

    Chapter 22 - Component Data and References

    Guy K2AV contributes the following information about powdered-iron toroids from various sources:

     

    0 Mix (Tan)        100-300 MHz, u=1
    1 Mix (Blue)       0.5-5 MHz, u=20
    2 Mix (Red)        1-30 MHz, high volume resistivity u=10 [alternately listed as 2-30 MHz]
    3 Mix  (Gray)      0.05-.5 MHz, u=35
    6 Mix (Yel)         1-50 MHz, u=8, similar to mix #2 [alternately listed as 10-50 MHz,
                             replaced by mix #8]
    7 Mix                 3-35 MHz, u=9 small cores only
    8 Mix(Yel/Red)   1-50 MHz, u=35 replaces mix #6
    10 Mix               30-100 MHz, u=6
    12 Mix               50-200 MHz, u=4
    15 Mix               0.1-2 MHz, u=25
    17 Mix (Blu/Yel)  50-200 MHz, u=3 good Q [alternately listed with u=4]
    18 Mix (Grn/Red) 1-50 MHz, u=55, low core loss, similar to mix #8
    26 Mix (Yel/Wht) dc-800 kHz, u=75, great 60 Hz EMI range for speakers and ac wiring
    40 Mix (Grn/Yel)  Power conversion similar to mix #26
    52 Mix (Grn/Blu)  dc-1 MHz, u=75, high permeability

     

  • 2013 Edition - Errata

    Errata by chapter


     

    Chapter 2 - Electrical Fundamentals

     

    Page 2.23: In the left-hand column's first full paragraph, the second sentence should read "Since there is no current path between the two, the plates remain charged despite the fact that they are no longer connected to the battery as a source of voltage."

    Page 2.47: The sentence just before section 2.10.6 should read "In the parallel circuit for Fig 2.64, a capacitive reactance of 100 Ω and a resistance of 100 Ω would be equivalent to the series circuit."

     

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