A1A01This is how the Help text appears.|Press F1 again to remove it.
C1A01Entire band
A1A02
D1A03
A1A04Entire band
B1A05
D1A06
A1A07
A1A08
A1A09Entire band
C1A10
D1A11
C1A12This is a CW, RTTY and Data only band
B1A13
C1A14
C1A15Top of band
C1A16
B1A17Novice call
D1A18
A1A19A repeater station - A space|station maybe a repeater
B1A20Harmful
C1A21
C1B01
B1B02Good amateur practice
B1B03A beacon
A1B04
D1B05Music may never be originated by|an amateur station
C1B06Never
B1B07
A1B08Never
A1B09Never
D1B10You must obtain permission|from NASA first
C1B11Turn down the music
A1C01
C1C02
A1C03200 Watts PEP Max.
A1C04
C1C05Amateur limit of 1500 watts PEP
D1C06Two meters
B1C07
B1C08Input power requirement
D1C09
A1C10
D1C11
B1D01Five WPM only
C1D02
C1D03
B1D04
C1D05No code required
D1D06
A1D07Three
D1D08VEC accreditation
B1D09/AG
C1D10Temporary AG
A1D11
A2A01Varies by band - Upper on 20
B2A02Lower
A2A03
B2A04
C2A05
A2A06Seven bit
B2A07
B2A08A & B
A2A09.1 MHz
B2A10"V"oice "O"perated "X"mit
D2A11
D2B01Move a little bit
A2B02Move a little bit
D2B03
B2B04.5kHz
B2B05
B2B06
B2B07
A2B08
C2B09The opposite direction
A2B10Guideline
B2B11All US states are in region 2
C2C01Any
A2C02
A2C03
D2C04
D2C05None
C2C06Any
B2C07Help!
A2C08Practice
C2C09Signal reports
A2C10
B2C11
A3A01Change bands
B3A02Disrupts lower HF signals
C3A03
B3A04Sun's energy
D3A05
D3A06
A3A07Higher
B3A08Degraded
A3A09Solar activity
B3A10Electromagnetic like UV
C3A11Entire HF band becomes usable
B3B01Next below - 15 meters
C3B02Next below
C3B03
A3B0410 meter beacons
A3B05Refracted (bent)
C3B06Beacons tend to be in the lower|part of the bands
D3B07Above 20 MHz
D3B08Most of the time
A3B09
C3B10Being high - it supports longest
B3B11Lower region - 1200 miles
B3C01
A3C02Tends to follow temp.
C3C03
D3C04Highest
C3C05 Low region absorption
B3C06
D3C07
A3C08
B3C09
D3C10Above MUF
A3C11
C4A01Two sine waves
C4A02Non-harmonic
D4A03Non-harmonic
D4A04
A4A05A solid-state TR switch might produce some|harmonics and a low-pass should follow it
C4A06Should last longer and is faster
A4A07Min. change
D4A08Prevent osc.
C4A09
B4A10
B4A10
D4B01
D4B02
B4B03Measure impedance
C4B04To measure impedance
A4B05Of the listed - an oscilloscope
D4B06A SMALL PART of the RF output
A4B07Field strength
C4B08Relative output
A4B09Field strength meter
B4B10An increase in power causes an increase|in S-meter reading
C4B11
B4C01Bypass capacitors
B4C02Install telephone filters
C4C03Without proper demodulation, SSB sounds garbled
A4C04
C4C05All station equipment should be properly grounded|to prevent shocks and burns and for this problem
D4C06Ground wire is too long and acts like an inductor
A4C07Unless your uncle owns a bank, reducing costs |is important. For some antennas, a good ground|is required. See question 148.
A4C08See question 148
B4C09Ground everything!
C4C10See question 148
D4C11ANSI covers RF exposure
D4D01Intelligibility is improved under poor|conditions
B4D02Increase distortion
B4D03To calculate power the RMS (.707) value|is used
A4D04.707 X .5 X 200 = 70.7 Vrms|(70.7 X 70.7)/50 = 100 watts
B4D05
B4D06For CW only, PEP = output power
A4D07Hot wires
A4D08
D4D09
D4D10
A4D11
A4E01Cooks it - like in a microwave oven
C4E02
A4E03What if there is no transmitter?|See question 169
B4E04Indoors or not, antennas should be located|away from people and power lines
A4E05
B4E06
D4E07Antennas should be located away from|people and power lines
B4E08How do you unpower your junk box?
D4E09
C4E10The ends of a proper length dipole|is where the RF voltage is highest
B4E11Critical angle is related to radios waves|entering the ionosphere
C5A01Opposition to current flow
B5A02Oppositon to AC current flow
D5A03
C5A04
D5A05Reactance varies with frequency
A5A06Reactance varies inversely with frequency
A5A07Matched
D5A08Maximum power is delivered in a|"matched" condition
A5A09
B5A10All componets of impedance are measured|in ohms
B5A11
B5B01dB = 10 LOG (P2/P1) = 10 LOG (2) = 3
B5B02
D5B03P2/P1 = 10(dB/10) = 10(6/10) = 4
C5B04Ten dB is ten times.
C5B05Twenty dB is 100 times
D5B06An equal amount
B5B07Sum
B5B08You can find the current and use P = E X I or|use P = E2/R = 4002/800 = 160000/8000 = 200|watts
D5B09P = E X I = 12 X .2 = 2.4 watts
A5B10
C5B11120*500/2250 = 26.7 volts
A5B12Take square root of 600/4
D5B13
B5B14RMS
D5B15Peak voltage is 1.414 times RMS|Peak-to-peak is double peak voltage
B5B16.707 X 17 = 12 volts (or divide by 1.414)
C6A01Depends
D6A02Electrolytic capacitors work well in|power supplies
D6A03A filter suppresses something
B6A04
A6A05
C6A06
A6A07Voltage and currrent
A6A08Protect the diodes. This does not apply|to a simple low-voltage power supply
A6A09Twice the input frequency
B6A10Full wave (full circle) is 360ø
D6A11Full wave is 360ø ie full circle
B7A01Provides a minimum load and discharges|capacitors when turned off
A7A02Across the output capacitor
D7A03Capacitors
D7A04Use double on these questions
D7A05
B7A06Same same
B7A07In one type of SSB exciter, a filter is used|to "convert" the DSB signal to a SSB signal
D7A08A balanced modulator produces a DSB|signal
C7A09It "mixes" the two signals
D7A10Called a detector from days of old
B7A11First time I've heard an amplifier|called a processor...
D8A01"Amplitude" is amplitude
B8A02If "Amplitude" is amplitude, then...
D8A03If "Amplitude" is amplitude, then...
B8A04You might get SOME phase modulation!|A low level stage is usually used
D8A05See question 225 etc.
C8A06
C8A07Carrier can be re-inserted in the receiver|The sidebands carry the "intellegence"
A8A08SSB
D8A09Distortion
B8A10
C8A11Flattopping is a form of distortion
A8B01A cook will tell you what combine means
B8B02Image
A8B03
D8B04A harmonic is a "multiple" of a signal
C8B05Bandwidth
D8B06
B8B07
C8B08
B8B09
C8B10
D8B11
A9A01Larger diameter elements
B9A02Driven element is like a dipole|Use L = 468/F = 468/14 = 33.4 feet
B9A035% shorter than driven element|See question 248
C9A045% longer than driven element|L = 1.05 X 468/28.1 = 17.5 feet
B9A05Director is shortest element
A9A06If of the correct length and properly|spaced - increases gain
D9A07Less critical
C9A08Increased gain reduces side interference
C9A09Foward power/reverse power
C9A10
A9A11Use correct dimensions and keep it high
B9B01Total wire length is 1005/21.4|Each side has 1/4th of total
A9B02
B9B03
B9B04Divide total length by 3
C9B05
C9B06
A9B07Being three dimensional, they have the|gain of a three element yagi
C9B08More - more
D9B09Polarization will change
C9B10Same as a Yagi
C9B11
A9C01Requires a GOOD ground
D9C02
B9C03
D9C04Raises impedance to 50ê
B9C05Increases
A9C06Figure 8 off of sides
B9C07Antenna should be 1/2 wavelength|(or more) high
D9C08It will become a Yagi
B9C09It will become a Yagi
B9C10At base of antenna
D9C11Safety
A9D01The radii
B9D0250 ohm is most common
D9D03300 ohm
C9D04Mismatched
D9D05Matched
C9D06
A9D07Attenuation increases at higher frequencies
D9D08dB per 100 feet
A9D09Second number is always 1
D9D10
D9D11Matched is 1:1
