Jules Verne |
January 31, 2014
Mistakes...
Science, my lad, is made up of mistakes, but they are mistakes which it is useful to make, because they lead little by little to the truth. -- Jules Verne
FCC Technician Exam Question Of The Day (T1A04)
Q) Which of the following meets the FCC definition of harmful interference?
A) That which seriously degrades, obstructs, or repeatedly interrupts a radio communication service operating in accordance with the Radio Regulations.
NJ2X Notes:
A "lid" is an amateur radio slang word used to denote a poor operator. Causing harmful interference on the amateur bands is a sure way to gain a reputation as "lid". It is also an effective way to receive a notice from the FCC with the possibility of a $10,000 fine.
A) That which seriously degrades, obstructs, or repeatedly interrupts a radio communication service operating in accordance with the Radio Regulations.
NJ2X Notes:
A "lid" is an amateur radio slang word used to denote a poor operator. Causing harmful interference on the amateur bands is a sure way to gain a reputation as "lid". It is also an effective way to receive a notice from the FCC with the possibility of a $10,000 fine.
January 30, 2014
FCC Technician Exam Question Of The Day (T1A09)
Q) Who selects a Frequency Coordinator?
A) Amateur operators in a local or regional area whose stations are eligible to be auxiliary or repeater stations.
NJ2X Notes:
The ARRL is not a frequency coordinator. This is a common misunderstanding.
A) Amateur operators in a local or regional area whose stations are eligible to be auxiliary or repeater stations.
NJ2X Notes:
The ARRL is not a frequency coordinator. This is a common misunderstanding.
January 29, 2014
FCC Technician Exam Question Of The Day (T6D01)
Q) Which of the following devices or circuits changes an alternating current into a varying direct current signal?
A) Rectifier
NJ2X Notes:
A rectifier is an electrical device based on the diode that converts alternating current (AC) to direct current (DC). The process is known as rectification.
Check out NJ2X.COM for other FCC Technician Exam questions, answers, and explanations.
A) Rectifier
NJ2X Notes:
A rectifier is an electrical device based on the diode that converts alternating current (AC) to direct current (DC). The process is known as rectification.
Various Bridge Rectifier Devices |
Check out NJ2X.COM for other FCC Technician Exam questions, answers, and explanations.
January 28, 2014
FCC Technician Exam Question Of The Day (T1A08)
Q) Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?
A) Frequency Coordinator.
NJ2X Notes:
The ARRL is not a Frequency Coordinator, nor does the ARRL "certify" coordinators. Frequency Coordinators are volunteers normally appointed by a coordinating body.
A) Frequency Coordinator.
NJ2X Notes:
The ARRL is not a Frequency Coordinator, nor does the ARRL "certify" coordinators. Frequency Coordinators are volunteers normally appointed by a coordinating body.
January 27, 2014
FCC Technician Exam Question Of The Day (T6A02)
Q) What type of component is often used as an adjustable volume control?
A) Potentiometer
NJ2X Notes:
The potentiometer (or "pot") is a variable resistor.
These are commonly used in electronic devices as a three-terminal resistor with a continuously adjustable tapping point controlled by rotation of a shaft or knob. These variable resistors are known as potentiometers when all three terminals are present, since they act as a continuously adjustable voltage divider. A common example is a volume control for a radio, audio amplifier, or audio mixer.
A) Potentiometer
NJ2X Notes:
The potentiometer (or "pot") is a variable resistor.
Potentiometer |
These are commonly used in electronic devices as a three-terminal resistor with a continuously adjustable tapping point controlled by rotation of a shaft or knob. These variable resistors are known as potentiometers when all three terminals are present, since they act as a continuously adjustable voltage divider. A common example is a volume control for a radio, audio amplifier, or audio mixer.
January 26, 2014
FCC Technician Exam Question Of The Day (T6A11)
Q) Which battery type is not rechargeable?
A) Carbon-zinc
NJ2X Notes:
A zinc–carbon battery is made up of a zinc outer canister that serves as both a container and negative terminal. The positive terminal is a carbon rod surrounded by a mixture of manganese dioxide and carbon powder with an electrolyte of paste of zinc chloride and ammonium chloride dissolved in water. A typical A, AA, C, or D zinc-carbon cell has an electromotive force (emf) about 1.5V. Zinc-carbon batteries are not rechargeable.
A) Carbon-zinc
NJ2X Notes:
A zinc–carbon battery is made up of a zinc outer canister that serves as both a container and negative terminal. The positive terminal is a carbon rod surrounded by a mixture of manganese dioxide and carbon powder with an electrolyte of paste of zinc chloride and ammonium chloride dissolved in water. A typical A, AA, C, or D zinc-carbon cell has an electromotive force (emf) about 1.5V. Zinc-carbon batteries are not rechargeable.
Alkaline Battery |
January 25, 2014
FCC Technician Exam Question Of The Day (T6A09)
Q) What electrical component is used to protect other circuit components from current overloads?
A) Fuse
NJ2X Notes:
Fuses play an important role by protecting a circuit from current overload. Fundamentally a fuse is a short length of wire in a glass envelope that will melt at or above a specific current level. The basic idea is to design a circuit so that the fuse will break down before the wires and components are destroyed or catch fire. You want the fuse to be the weakest link in the electrical chain.
A) Fuse
NJ2X Notes:
Fuses play an important role by protecting a circuit from current overload. Fundamentally a fuse is a short length of wire in a glass envelope that will melt at or above a specific current level. The basic idea is to design a circuit so that the fuse will break down before the wires and components are destroyed or catch fire. You want the fuse to be the weakest link in the electrical chain.
January 24, 2014
False facts...
False facts are highly injurious to the progress of science, for they often endure long; but false views, if supported by some evidence, do little harm, for every one takes a salutary pleasure in proving their falseness. -- Charles Darwin
FCC Technician Exam Question Of The Day (T6A08)
January 23, 2014
FCC Technician Exam Question Of The Day (T5D05)
Q) What is the resistance in a circuit for which the applied voltage is 12 volts, and the current flow is 1.5 amperes?
A) 8 ohms
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
R = E / I
R = 12 volts / 1.5 amperes = 8 ohms
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
A) 8 ohms
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
R = E / I
R = 12 volts / 1.5 amperes = 8 ohms
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
January 22, 2014
FCC Technician Exam Question Of The Day (T5D08)
Q) What is the current flowing through a 100-ohm resistor connected across 200 volts?
A) 2 amperes
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
I = E / R
I = 200 volts / 100 ohms = 2 amperes
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
A) 2 amperes
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
I = E / R
I = 200 volts / 100 ohms = 2 amperes
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
January 21, 2014
FCC Technician Exam Question Of The Day (T7A07)
January 20, 2014
FCC Technician Exam Question Of The Day (T1A10)
Q) What is the FCC Part 97 definition of an amateur station?
A) A station in an Amateur Radio Service consisting of the apparatus necessary for carrying on radio communications.
NJ2X Note:
A good approach to the Part 97 questions on the exam is to simply memorize the answers. It is also helpful to read the FCC Part 97 rules (see our article, Part 97, do I really need to read it?). There is a payback for your effort. Once licensed, you need to know the rules in order to assure that you are following them. As the old saying goes, Ignorantia juris non excusat which is Latin for, "ignorance of the law excuses no one".
A) A station in an Amateur Radio Service consisting of the apparatus necessary for carrying on radio communications.
NJ2X Note:
A good approach to the Part 97 questions on the exam is to simply memorize the answers. It is also helpful to read the FCC Part 97 rules (see our article, Part 97, do I really need to read it?). There is a payback for your effort. Once licensed, you need to know the rules in order to assure that you are following them. As the old saying goes, Ignorantia juris non excusat which is Latin for, "ignorance of the law excuses no one".
January 19, 2014
FCC Technician Exam Question Of The Day (T5D12)
Q) What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?
A) 20 volts
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
E = I * R
E = 2 amperes * 10 ohms = 20 volts
A) 20 volts
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
E = I * R
E = 2 amperes * 10 ohms = 20 volts
January 18, 2014
FCC Technician Exam Question Of The Day (T5D09)
Q) What is the current flowing through a 24-ohm resistor connected across 240 volts?
A) 10 amperes
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
I = E / R
I = 240 volts / 24 ohms = 10 amperes
A) 10 amperes
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
I = E / R
I = 240 volts / 24 ohms = 10 amperes
January 17, 2014
Discovering principles
Every science has for its basis a system of principles as fixed and unalterable as those by which the universe is regulated and governed. Man cannot make principles; he can only discover them. -- Thomas Paine
FCC Technician Exam Question Of The Day (T5D07)
Q) What is the current flow in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?
A) 1.5 amperes
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
I = E / R
I = 120 volts / 80 ohms = 1.5 amperes
A) 1.5 amperes
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
I = E / R
I = 120 volts / 80 ohms = 1.5 amperes
January 16, 2014
FCC Technician Exam Question Of The Day (T5D06)
Q) What is the resistance of a circuit that draws 4 amperes from a 12-volt source?
A) 3 ohms
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
R = E / I
R = 12 volts / 4 amperes = 3 ohms
A) 3 ohms
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
R = E / I
R = 12 volts / 4 amperes = 3 ohms
January 15, 2014
FCC Technician Exam Question Of The Day (T5D04)
Q) What is the resistance of a circuit in which a current of 3 amperes flows through a resistor connected to 90 volts?
A) 30 ohms
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
R = E / I
R = 90 volts / 3 amperes = 30 ohms
A) 30 ohms
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
R = E / I
R = 90 volts / 3 amperes = 30 ohms
January 14, 2014
FCC Technician Exam Question Of The Day (T6D08)
Q) Which of the following is used together with an inductor to make a tuned circuit?
A) Capacitor
NJ2X Notes:
A tuned circuit is also called a resonant circuit and is made up of an inductor and a capacitor connected together. A mechanical analog for a resonator circuit is the tuning fork which stores energy while oscillating at its resonant frequency.
A) Capacitor
NJ2X Notes:
A tuned circuit is also called a resonant circuit and is made up of an inductor and a capacitor connected together. A mechanical analog for a resonator circuit is the tuning fork which stores energy while oscillating at its resonant frequency.
Tuning fork oscillates and stores energy |
January 13, 2014
FCC Technician Exam Question Of The Day (T3A04)
Q) What can happen if the antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?
A) Signals could be significantly weaker
NJ2X Notes:
Both receive and transmit antennas must have the same spatial orientation, the same polarization sense and the same axial ratio in order to maximize reception. Antennas that are not aligned or do not have the same polarization will have reduced power transfer. The reduction in power transfer equates to a loss in overall efficiency and performance.
It is more difficult to receive a horizontally transmitted wave with a receive antenna that is vertically polarized due to the polarization mismatch which can cause a 20dB loss.
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010, for examinations and is valid until June 30, 2014.
A) Signals could be significantly weaker
NJ2X Notes:
Both receive and transmit antennas must have the same spatial orientation, the same polarization sense and the same axial ratio in order to maximize reception. Antennas that are not aligned or do not have the same polarization will have reduced power transfer. The reduction in power transfer equates to a loss in overall efficiency and performance.
It is more difficult to receive a horizontally transmitted wave with a receive antenna that is vertically polarized due to the polarization mismatch which can cause a 20dB loss.
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010, for examinations and is valid until June 30, 2014.
January 12, 2014
FCC Technician Exam Question Of The Day (T5B10)
Q) What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?
A) 6 dB
NJ2X Notes:
The following formula will allow you calculate the ratio in decibels given two different power values.
dB = 10 * Log(Pa / Pb)
Using the figures in the question:
dB = 10 * Log (12 / 3)
dB = 10 * Log(4)
dB = 10 * 0.6
dB = 6
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
A) 6 dB
NJ2X Notes:
The following formula will allow you calculate the ratio in decibels given two different power values.
dB = 10 * Log(Pa / Pb)
Using the figures in the question:
dB = 10 * Log (12 / 3)
dB = 10 * Log(4)
dB = 10 * 0.6
dB = 6
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
January 11, 2014
FCC Technician Exam Question Of The Day (T5B09)
Q) What is the approximate amount of change, measured in decibels (dB), of a power increase from 5 watts to 10 watts?
A) 3 dB
NJ2X Notes:
The following formula will allow you calculate the ratio in decibels given two different power values.
dB = 10 * Log(Pa / Pb)
Using the figures in the question:
dB = 10 * Log (10 / 5)
dB = 10 * Log(2)
dB = 10 * 0.301
dB = 3.01
which is approximately 3 dB
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
A) 3 dB
NJ2X Notes:
The following formula will allow you calculate the ratio in decibels given two different power values.
dB = 10 * Log(Pa / Pb)
Using the figures in the question:
dB = 10 * Log (10 / 5)
dB = 10 * Log(2)
dB = 10 * 0.301
dB = 3.01
which is approximately 3 dB
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
January 10, 2014
Ignorance of science...
It has become almost a cliché to remark that nobody boasts of ignorance of literature, but it is socially acceptable to boast ignorance of science and proudly claim incompetence in mathematics. -- Richard Dawkins
FCC Technician Exam Question Of The Day (T3B03)
Q) What are the two components of a radio wave?
A) Electric and magnetic fields
NJ2X Notes:
Electromagnetic waves have two components: the electric and the magnetic. The two components are oriented perpendicular to each other.
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
A) Electric and magnetic fields
NJ2X Notes:
Electromagnetic waves have two components: the electric and the magnetic. The two components are oriented perpendicular to each other.
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
January 9, 2014
FCC Technician Exam Question Of The Day (T3A09)
Q) Which of the following is a common effect of “skip” reflections between the Earth and the ionosphere?
A) The polarization of the original signal is randomized
NJ2X Notes:
Antenna polarization is very important for line-of-sight VHF and UHF communications since a mismatch between the transmitter antenna polarization and the receiver antenna polarization results in significant signal loss.
Signal polarization on HF and 6M typically involve reflecting radio waves off the ionosphere or earth. These reflections tend to randomly change the polarization. The result is that differences between transmitting antenna polarization and receiving antenna polarization matter much less than on VHF and UHF line-of-sight communication.
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
A) The polarization of the original signal is randomized
NJ2X Notes:
Antenna polarization is very important for line-of-sight VHF and UHF communications since a mismatch between the transmitter antenna polarization and the receiver antenna polarization results in significant signal loss.
Signal polarization on HF and 6M typically involve reflecting radio waves off the ionosphere or earth. These reflections tend to randomly change the polarization. The result is that differences between transmitting antenna polarization and receiving antenna polarization matter much less than on VHF and UHF line-of-sight communication.
This question is from the FCC Element 2 Technician Class Question Pool
Effective July 1, 2010 for examinations and is valid until June 30, 2014
January 8, 2014
FCC Technician Exam Question Of The Day (T5C03)
Q) What is the ability to store energy in a magnetic field called?
A) Inductance
NJ2X Notes:
Here is a little memory trick you may find helpful. An inductor can be made from a coil of magnet wire which can store energy.
A) Inductance
NJ2X Notes:
Here is a little memory trick you may find helpful. An inductor can be made from a coil of magnet wire which can store energy.
January 7, 2014
FCC Technician Exam Question Of The Day (T3A01)
Q) What should you do if another operator reports that your station’s 2 meter signals were strong just a moment ago, but now they are weak or distorted?
A) Try moving a few feet, as random reflections may be causing multi-path distortion
NJ2X Notes:
Multi-path propagation occurs commonly with mobile and portable VHF / UHF operations. With multi-path propagation the signal received includes not only a direct line-of- sight radio wave, but also a large number of reflected radio waves.
The reflected waves can interfere with the line-of-sight wave causing distortion or poor reception. Moving the transmitter a short distance can dramatically change the reflections thereby improving reception.
Remember this phenomena the next time you or a friend are having difficulty connecting a PC to wifi. Moving the PC only a short distance can make enough of a difference that you are able to connect (and amaze your friend).
A) Try moving a few feet, as random reflections may be causing multi-path distortion
NJ2X Notes:
Multi-path propagation occurs commonly with mobile and portable VHF / UHF operations. With multi-path propagation the signal received includes not only a direct line-of- sight radio wave, but also a large number of reflected radio waves.
The reflected waves can interfere with the line-of-sight wave causing distortion or poor reception. Moving the transmitter a short distance can dramatically change the reflections thereby improving reception.
Remember this phenomena the next time you or a friend are having difficulty connecting a PC to wifi. Moving the PC only a short distance can make enough of a difference that you are able to connect (and amaze your friend).
January 6, 2014
FCC Technician Exam Question Of The Day (T3A02)
Q) Why are UHF signals often more effective from inside buildings than VHF signals?
A) The shorter wavelength allows them to more easily penetrate the structure of buildings
NJ2X Notes:
The higher the frequency, the shorter the wavelength, and the smaller the opening required to pass signals through.
A) The shorter wavelength allows them to more easily penetrate the structure of buildings
NJ2X Notes:
The higher the frequency, the shorter the wavelength, and the smaller the opening required to pass signals through.
January 5, 2014
FCC Technician Exam Question Of The Day (T3A03)
Q) What antenna polarization is normally used for long-distance weak-signal CW and SSB contacts using the VHF and UHF bands?
A) Horizontal
NJ2X Notes:
Horizontally polarized antennas include: dipole, yagi, quads, and horizontal loop antennas.
A) Horizontal
NJ2X Notes:
Horizontally polarized antennas include: dipole, yagi, quads, and horizontal loop antennas.
Rotatable Dipole |
January 4, 2014
FCC Technician Exam Question Of The Day (T3A07)
Q) What type of wave carries radio signals between transmitting and receiving stations?
A) Electromagnetic
NJ2X Note:
This question is a good of example of how you can increase your odds of selecting the correct answer by first eliminating the obvious wrong answers.
Here are the four choices that will appear on the exam for this question:
A. Electromagnetic
B. Electrostatic
C. Surface acoustic
D. Magnetostrictive
B.Electrostatic - This is synonym for static electricity. Fun to zap someone after shuffling across a carpeted floor. Not a very useful for transmitting with a radio.
C.Surface acoustic - This is a nonsense term. Acoustic refers to sound waves that we can hear with our ears. Has nothing to do with transmitting radio signals.
D.Magnetostrictive - This is a real term though unrelated to radio. This is also trick answer since it incorporates the "magneto" which sounds a little like "electromagnetic".
A) Electromagnetic
NJ2X Note:
This question is a good of example of how you can increase your odds of selecting the correct answer by first eliminating the obvious wrong answers.
Here are the four choices that will appear on the exam for this question:
A. Electromagnetic
B. Electrostatic
C. Surface acoustic
D. Magnetostrictive
B.
C.
D.
January 3, 2014
Enthusiasm for science...
I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students. -- Carl Sagan
FCC Technician Exam Question Of The Day (T5C01)
Q) What is the ability to store energy in an electric field called?
A) Capacitance
NJ2X Notes:
Here is a little memory trick that works for us, "storing energy requires capacity".
A) Capacitance
NJ2X Notes:
Here is a little memory trick that works for us, "storing energy requires capacity".
January 2, 2014
FCC Technician Exam Question Of The Day (T5C02)
Q) What is the basic unit of capacitance?
A) The farad
NJ2X Notes:
The capacitance unit of measure, "farad" is named after the great scientific genius, Michael Faraday.
A) The farad
NJ2X Notes:
The capacitance unit of measure, "farad" is named after the great scientific genius, Michael Faraday.
Variable Capacity Schematic Symbol - capacitance is measured in farads |
January 1, 2014
Reflections on NJ2X's LoTW statistics for 2013
As we start the new year 2014, we reviewed our LoTW stats to see how our year in ham radio went.
1/16/2013 1/1/2014 Delta
3,556 QSO records 3,955 QSO records 399 QSO records
1,486 QSL records 1,780 QSL records 294 QSL records
42% QSL/QSO 45% QSL/QSO 74% QSL/QSO
54,750 LoTW users 62,151 LoTW users 7401 increase in registered LoTW users
It is nice to see the number of registered LoTW users going up each year. The 14% increase of users helped drive up everyone's LoTW QSL/QSO ratios. We saw a 3% increase in our overall QSL/QSO ratio in 2013 as a result. Tell your friends now is a great time to jump in and join The Logbook of The World.
I am looking forward to the day when we see the number of registered LoTW users increase to 100,000 or 200,000 hams worldwide. How about 1,000,000 LoTW subscribers? What will the average QSL/QSO LoTW ratio be when that happens? Pretty darn good I am sure.
So how does your QSL/QSO LoTW ratio compare? Not using the LoTW yet? Well come on and join the fun.
Good DX and 73, NJ2X
Other related articles on NJ2X.COM:
© Michael W. Maher and NJ2X.COM, 2014. Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Michael W. Maher and NJ2X.COM with appropriate and specific direction to the original content.
1/16/2013 1/1/2014 Delta
3,556 QSO records 3,955 QSO records 399 QSO records
1,486 QSL records 1,780 QSL records 294 QSL records
42% QSL/QSO 45% QSL/QSO 74% QSL/QSO
54,750 LoTW users 62,151 LoTW users 7401 increase in registered LoTW users
It is nice to see the number of registered LoTW users going up each year. The 14% increase of users helped drive up everyone's LoTW QSL/QSO ratios. We saw a 3% increase in our overall QSL/QSO ratio in 2013 as a result. Tell your friends now is a great time to jump in and join The Logbook of The World.
I am looking forward to the day when we see the number of registered LoTW users increase to 100,000 or 200,000 hams worldwide. How about 1,000,000 LoTW subscribers? What will the average QSL/QSO LoTW ratio be when that happens? Pretty darn good I am sure.
So how does your QSL/QSO LoTW ratio compare? Not using the LoTW yet? Well come on and join the fun.
Good DX and 73, NJ2X
Other related articles on NJ2X.COM:
- Logbook of The World to Now Support CQ Awards
- Hunting LoTW Stations
- Powerful DX Hunting Accessories - Your Ears
- DX Code of Conduct
- DX Technique: Taking A Break = Opportunity For A Modest Station
© Michael W. Maher and NJ2X.COM, 2014. Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Michael W. Maher and NJ2X.COM with appropriate and specific direction to the original content.
FCC Technician Exam Question Of The Day (T5C08)
Q) What is the formula used to calculate electrical power in a DC circuit?
A) Power (P) equals voltage (E) multiplied by current (I)
NJ2X Notes:
There is a really excellent method for memorizing the various power/voltage/current relationships called simply the "PIE" method or also the "Power Triangle".
To use this, memorize drawing a triangle with the letter PIE arranged as above which stand for Power (P), Current (I), and Voltage (E) . Then cover any letter to find the formula (see above). Presto magico - easy as PIE!
A) Power (P) equals voltage (E) multiplied by current (I)
NJ2X Notes:
There is a really excellent method for memorizing the various power/voltage/current relationships called simply the "PIE" method or also the "Power Triangle".
NJ2X PIE chart for finding the relation between power, current, and voltage |
To use this, memorize drawing a triangle with the letter PIE arranged as above which stand for Power (P), Current (I), and Voltage (E) . Then cover any letter to find the formula (see above). Presto magico - easy as PIE!
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