ExtraClassSylalbus2009jan-AD7FO

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Rev 2.02 Following these eight cycles, a phase shift in the chrominance signal indicates the color to display. The amplitude of the signal determines the saturation. The following table shows you the relationship between color and phase: Color Phase Burst 0 degrees Yellow 15 degrees Red 75 degrees Magenta 135 degrees Blue 195 degrees Cyan 255 degrees Green 315 degrees A black-and-white TV filters out and ignores the chrominance signal. A color TV picks out the chrominance signal and decodes it, along with the normal intensity signal, to determine how to modulate the three color beams. E2B08 Common methods of transmitting accompanying audio with amateur fast-scan television include a frequencymodulated sub-carrier, a separate VHF or UHF audio link or frequency modulation of the video carrier. E2B09 No other hardware, other than a transceiver with SSB capability and a suitable computer, is needed to decode SSTV based on Digital Radio Mondiale (DRM). DRM is a protocol for higher quality audio and images. E2B10 An acceptable bandwidth for Digital Radio Mondiale (DRM) based voice or SSTV digital transmissions made on the HF amateur bands is 3 KHz. E2B11 The function of the Vertical Interval Signaling (VIS) code transmitted as part of an SSTV transmission is to identify the SSTV mode being used. E2B12 Analog slow-scan television images are typically transmitted on the HF bands by varying tone frequencies representing the video and are transmitted using single sideband modulation. E2B13 128 or 256 lines are commonly used in each frame on an amateur slow-scan color television picture. Fast scan TV uses 525 lines for each frame E2B14 The tone frequency aspect of an amateur slow-scan television signal encodes the brightness of the picture. E2B15 Specific tone frequencies signal SSTV receiving equipment to begin a new picture line. E2B16 NTSC is the video standard used by North American Fast Scan ATV stations. Jack Tiley <strong>AD7FO</strong> Page 20 3/15/2009
Rev 2.02 E2B17 Immunity from fading due to limiting is NOT a characteristic of FMTV (Frequency-Modulated Amateur Television) as compared to vestigial sideband AM television. E2B18 The approximate bandwidth of a slow-scan TV signal is 3 kHz. E2B19 (D) You are likely to find FMTV (Frequency Modulated Television) transmissions on the 1255 MHz band. E2B20 Operating frequency restrictions are imposed on slow scan TV transmissions. They are restricted to phone band segments and their bandwidth can be no greater than that of a voice signal of the same modulation type. E2B21 If 100 IRE units correspond to the most-white level in the NTSC standard video format, the level of the most-black signal would be 7.5 IRE units. An “IRE unit” is a measure of video signal level based on an IEEE (Institute of Electrical and Electronic Engineers) standard. E2C Operating methods, part 1: contest and DX operating; spread-spectrum transmissions; automatic HF forwarding; selecting an operating frequency E2C01 Operators are permitted to make contacts even if they do not submit a log when operating a contest. E2C02 The generally prohibited practice of posting one’s own call sign and frequency on a call sign spotting network is described as “self spotting” in regards to contest operation. E2C03 Amateur radio contesting is generally excluded (not allowed) on 30 meters. E2C04 An amateur radio contest contact is generally discouraged on 146.52 MHz (the national 2 meter calling frequency). E2C05 14.310 MHz would generally be acceptable for U.S. stations to work other U.S. stations in a phone contest. 5405 kHz, 50.050 MHz and 146.52 MHz would generally not be acceptable for U.S. stations to work other U.S. stations in a phone contest. E2C06 During a VHF/UHF contest you would expect to find the highest level of activity in the weak signal segment of the band, with most of the activity near the calling frequency. CW and weak signal: 144.000 to 144.100 222.000 to 223.400 432.000 to 432.125 902.000 to 902.400 National calling frequencies: 144.200 SSB and 146.52 FM 222.100 SSB and 223.500 FM 432.100 SSB and 446.000 FM 902.100 SSB Jack Tiley <strong>AD7FO</strong> Page 21 3/15/2009
Page 1 and 2: Rev 2.02 Preparing for the Extra cl
Page 3 and 4: Rev 2.02 Guide to using this syllab
Page 5 and 6: Rev 2.02 SUBELEMENT E4 -- AMATEUR R
Page 7 and 8: Rev 2.02 ELEMENT 4 - EXTRA CLASS QU
Page 9 and 10: Rev 2.02 E1A09 (Band Plan Chart) Th
Page 11 and 12: Rev 2.02 E1B13 (FCC Rules) Communic
Page 13 and 14: Rev 2.02 E1D08 (FCC Rules) The 2 me
Page 15 and 16: Rev 2.02 E1E20 (FCC Rules) You must
Page 17 and 18: Rev 2.02 SUBELEMENT E2 - OPERATING
Page 19: Rev 2.02 E2A13 Geosynchronous satel
Page 23 and 24: Rev 2.02 E2D02 The definition of
Page 25 and 26: Rev 2.02 SUBELEMENT E3 -- RADIO WAV
Page 27 and 28: Rev 2.02 E3C01 Auroral activity cau
Page 29 and 30: Rev 2.02 E4A06 A spectrum analyzer
Page 31 and 32: Rev 2.02 E4B09 High impedance input
Page 33 and 34: Rev 2.02 E4C06 If t he thermal nois
Page 35 and 36: Rev 2.02 E4D11 Third-order intermod
Page 37 and 38: Rev 2.02 SUBELEMENT E5 -- ELECTRICA
Page 39 and 40: Rev 2.02 E5B Time constants and pha
Page 41 and 42: Rev 2.02 Example 2: To find the ang
Page 43 and 44: Rev 2.02 j 50 -j 25 E5B12 The phase
Page 45 and 46: Rev 2.02 j 600 -j300 E5C04 In polar
Page 47 and 48: Rev 2.02 Parallel circuit solutions
Page 49 and 50: Rev 2.02 R=300 Ω XL= (2 π FL) or
Page 51 and 52: Rev 2.02 Power Factor represents th
Page 53 and 54: Rev 2.02 SUBELEMENT E6 -- CIRCUIT C
Page 55 and 56: Rev 2.02 Field-effect transistors e
Page 57 and 58: Rev 2.02 E6B12 Junction diodes are
Page 59 and 60: Rev 2.02 E6D02 Cathode ray tube (CR
Page 61 and 62: Rev 2.02 E6E04 The technique used t
Page 63 and 64: Rev 2.02 E6F07 Cadmium sulfide will
Page 65 and 66: Rev 2.02 E7A07 An AND gate produces
Page 67 and 68: Rev 2.02 When a Class C rather than
Page 69 and 70: Rev 2.02 E7C01 In a low-pass filter
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Rev 2.02 E7D02 One characteristic o
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Rev 2.02 E7E05 A pre-emphasis netwo
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Rev 2.02 E7F08 One purpose of a mar
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Rev 2.02 E7G17 The typical output i
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Rev 2.02 E7H19 A phase-locked loop
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Rev 2.02 E8A06 The approximate rati
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Rev 2.02 E8B13 In time division mul
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Rev 2.02 E8D07 An electromagnetic w
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Rev 2.02 E9A10 Antenna bandwidth is
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Rev 2.02 E9B10 The “Method of Mom
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Rev 2.02 E9C09 The elevation angle
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Rev 2.02 E9D09 An advantage of usin
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Rev 2.02 E9E08 An SWR greater than
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Rev 2.02 E9F11 A 1/8-wavelength tra
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Rev 2.02 E9H05 The main drawback of
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Rev 2.02 SUBELEMENT E0 -- SAFETY [1
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Rev 2.02 Jack Tiley AD7FO Page 103
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Rev 2.02 Capacitors in series C= __
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Rev 2.02 Impedance of complex serie
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Rev 2.02 Calculating Component valu
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Rev 2.02 AC Voltage Calculations Th
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Rev 2.02 Jack Tiley AD7FO Page 113
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