Dennis,
I administer license exams. We always encourage those who do well on their technician exam to take the general exam. Recently two candidates, who did not plan to take more than technician, also passed the general. Both left in a mild state of shock. Not everyone passes, but it is good practice.
Two numbers to remember:
300: speed of light in millions of meters per second. Divide 300 by MHz and get wavelength. Divide 300 by wavelength in meters and get MHz. Half of the wavelength gives you the length of a half wave dipole, etc. A meter = about 40 inches or about 3-1/4 feet.
7: We have bands starting at 7, 14, 21, 28, and 3.5 MHz. CW and data in the lower part; voice and image in the upper parts. Get the colorful frequency chart from ARRL:
http://www.arrl.org/graphical-frequency-allocations
That will give you another way to look at amateur allocations. I keep a copy of that chart near my radios. I can't remember all those numbers either.
The technician license question pool changes somewhat on 1 July. If you know the material, you would still pass, but
Good luck, Joe, W7LUX
FYI
David
On Tue, Apr 10, 2018, 11:17 AM Joe Hobart nova@npgcable.com wrote:
Dennis,
I administer license exams. We always encourage those who do well on their technician exam to take the general exam. Recently two candidates, who did not plan to take more than technician, also passed the general. Both left in a mild state of shock. Not everyone passes, but it is good practice.
Two numbers to remember:
300: speed of light in millions of meters per second. Divide 300 by MHz and get wavelength. Divide 300 by wavelength in meters and get MHz. Half of the wavelength gives you the length of a half wave dipole, etc. A meter = about 40 inches or about 3-1/4 feet.
7: We have bands starting at 7, 14, 21, 28, and 3.5 MHz. CW and data in the lower part; voice and image in the upper parts. Get the colorful frequency chart from ARRL:
http://www.arrl.org/graphical-frequency-allocations
That will give you another way to look at amateur allocations. I keep a copy of that chart near my radios. I can't remember all those numbers either.
The technician license question pool changes somewhat on 1 July. If you know the material, you would still pass, but
Good luck, Joe, W7LUX
chirp_users mailing list chirp_users@intrepid.danplanet.com http://intrepid.danplanet.com/mailman/listinfo/chirp_users This message was sent to David at n5vtd25@gmail.com To unsubscribe, send an email to chirp_users-unsubscribe@intrepid.danplanet.com
This site is SO helpful.
Here are a few things I did to help me memorize the Baud rates and frequency allocations.
First. Baud rates are higher at higher frequencies or shorter wavelengths: 20-meters (15 mHz) 300 Baud 10.7-meters (28 mHZ) 300 Baud 10-meters (30 mHz) 1200 Buad 2-meters (150 mHz) 19.6 kBaud 1.25-meter (240 mHz) 56 kBaud 70-centimeter (430 mHz) 56 kBaud
Also a trick to memorize the the allowable wattage, at least for the general exam the answer is always 1500 watts except the 10.140 MHz question.
Another trick for getting the 'which frequencies' questions right is this. I believe for every single question about which frequencies are within the General Class are always the second to the highest that are in that band. Example:
Which of the following frequencies is within the General Class portion of the 20-meter phone band? A. 14005 kHz B. 14105 kHz C. 14305 kHz X Second to highest. D. 14405 kHz
But be careful. Make sure it's the second to highest in the band. There are some answers outside the band.
I'm ready!!!
Dennis M. Wage
245 Corum Hill Road Castalian Springs, TN 37031 (615) 310-4242 Cell (615) 562-5128 Home http://hammondb3organ.net http://overdubs.net
On Tue, Apr 10, 2018 at 11:50 AM, David Wilson n5vtd25@gmail.com wrote:
FYI
David
On Tue, Apr 10, 2018, 11:17 AM Joe Hobart nova@npgcable.com wrote:
Dennis,
I administer license exams. We always encourage those who do well on their technician exam to take the general exam. Recently two candidates, who did not plan to take more than technician, also passed the general. Both left in a mild state of shock. Not everyone passes, but it is good practice.
Two numbers to remember:
300: speed of light in millions of meters per second. Divide 300 by MHz and get wavelength. Divide 300 by wavelength in meters and get MHz. Half of the wavelength gives you the length of a half wave dipole, etc. A meter = about 40 inches or about 3-1/4 feet.
7: We have bands starting at 7, 14, 21, 28, and 3.5 MHz. CW and data in the lower part; voice and image in the upper parts. Get the colorful frequency chart from ARRL:
http://www.arrl.org/graphical-frequency-allocations
That will give you another way to look at amateur allocations. I keep a copy of that chart near my radios. I can't remember all those numbers either.
The technician license question pool changes somewhat on 1 July. If you know the material, you would still pass, but
Good luck, Joe, W7LUX
chirp_users mailing list chirp_users@intrepid.danplanet.com http://intrepid.danplanet.com/mailman/listinfo/chirp_users This message was sent to David at n5vtd25@gmail.com To unsubscribe, send an email to chirp_users-unsubscribe@ intrepid.danplanet.com
chirp_users mailing list chirp_users@intrepid.danplanet.com http://intrepid.danplanet.com/mailman/listinfo/chirp_users This message was sent to Dennis Wage at dwage@dwage.com To unsubscribe, send an email to chirp_users-unsubscribe@ intrepid.danplanet.com
Please take all this offline.
Jardy Dawson WA7JRD Ham Radio
Message sent by... Oh who the heck really cares?
On Apr 10, 2018, at 10:12, Dennis Wage dwage@dwage.com wrote:
This site is SO helpful.
Here are a few things I did to help me memorize the Baud rates and frequency allocations.
First. Baud rates are higher at higher frequencies or shorter wavelengths: 20-meters (15 mHz) 300 Baud 10.7-meters (28 mHZ) 300 Baud 10-meters (30 mHz) 1200 Buad 2-meters (150 mHz) 19.6 kBaud 1.25-meter (240 mHz) 56 kBaud 70-centimeter (430 mHz) 56 kBaud
Also a trick to memorize the the allowable wattage, at least for the general exam the answer is always 1500 watts except the 10.140 MHz question.
Another trick for getting the 'which frequencies' questions right is this. I believe for every single question about which frequencies are within the General Class are always the second to the highest that are in that band. Example:
Which of the following frequencies is within the General Class portion of the 20-meter phone band? A. 14005 kHz B. 14105 kHz C. 14305 kHz X Second to highest. D. 14405 kHz
But be careful. Make sure it's the second to highest in the band. There are some answers outside the band.
I'm ready!!!
Dennis M. Wage
245 Corum Hill Road Castalian Springs, TN 37031 (615) 310-4242 Cell (615) 562-5128 Home http://hammondb3organ.net http://overdubs.net
On Tue, Apr 10, 2018 at 11:50 AM, David Wilson n5vtd25@gmail.com wrote: FYI
David
On Tue, Apr 10, 2018, 11:17 AM Joe Hobart nova@npgcable.com wrote: Dennis,
I administer license exams. We always encourage those who do well on their technician exam to take the general exam. Recently two candidates, who did not plan to take more than technician, also passed the general. Both left in a mild state of shock. Not everyone passes, but it is good practice.
Two numbers to remember:
300: speed of light in millions of meters per second. Divide 300 by MHz and get wavelength. Divide 300 by wavelength in meters and get MHz. Half of the wavelength gives you the length of a half wave dipole, etc. A meter = about 40 inches or about 3-1/4 feet.
7: We have bands starting at 7, 14, 21, 28, and 3.5 MHz. CW and data in the lower part; voice and image in the upper parts. Get the colorful frequency chart from ARRL:
http://www.arrl.org/graphical-frequency-allocations
That will give you another way to look at amateur allocations. I keep a copy of that chart near my radios. I can't remember all those numbers either.
The technician license question pool changes somewhat on 1 July. If you know the material, you would still pass, but
Good luck, Joe, W7LUX
chirp_users mailing list chirp_users@intrepid.danplanet.com http://intrepid.danplanet.com/mailman/listinfo/chirp_users This message was sent to David at n5vtd25@gmail.com To unsubscribe, send an email to chirp_users-unsubscribe@intrepid.danplanet.com
chirp_users mailing list chirp_users@intrepid.danplanet.com http://intrepid.danplanet.com/mailman/listinfo/chirp_users This message was sent to Dennis Wage at dwage@dwage.com To unsubscribe, send an email to chirp_users-unsubscribe@intrepid.danplanet.com
_______________________________________________ chirp_users mailing list chirp_users@intrepid.danplanet.com http://intrepid.danplanet.com/mailman/listinfo/chirp_users This message was sent to Jardy at jardy72@yahoo.com To unsubscribe, send an email to chirp_users-unsubscribe@intrepid.danplanet.com
participants (4)
-
David Wilson -
Dennis Wage -
Jardy Dawson -
Joe Hobart