|
Welcome to Open Ham Prep! :wave:
|
|
0
|
32
|
December 13, 2025
|
|
"Repeater Access Tones" topic doesn't cover related question
|
|
1
|
5
|
March 15, 2026
|
|
Topic assignment for T6D10
|
|
1
|
7
|
March 15, 2026
|
|
T9B10 - What is the electrical difference between RG-58 and RG-213 coaxial cable?
|
|
1
|
8
|
January 25, 2026
|
|
E7B08 - Why are switching amplifiers more efficient than linear amplifiers?
|
|
1
|
4
|
January 24, 2026
|
|
E8A01 - What technique shows that a square wave is made up of a sine wave and its odd harmonics?
|
|
1
|
3
|
January 24, 2026
|
|
Release #162! More Accessibility
|
|
0
|
7
|
January 15, 2026
|
|
Bookmarks not showing consistently in bookmarks view
|
|
1
|
3
|
January 5, 2026
|
|
How to Elmer at Open Ham Prep
|
|
1
|
38
|
January 4, 2026
|
|
Links do not render in explanations in the app
|
|
1
|
4
|
January 3, 2026
|
|
Add organization by ARRL manual
|
|
9
|
15
|
January 3, 2026
|
|
E2A13 - Which of the following techniques is used by digital satellites to relay messages?
|
|
1
|
10
|
January 2, 2026
|
|
E6D07 - What is the current that flows in the primary winding of a transformer when there is no load on the secondary winding?
|
|
1
|
6
|
January 2, 2026
|
|
Figures are missing from questions
|
|
9
|
15
|
January 2, 2026
|
|
T9B09 - What can cause erratic changes in SWR?
|
|
0
|
1
|
January 2, 2026
|
|
T9B08 - Which of the following is a source of loss in coaxial feed line?
|
|
0
|
0
|
January 2, 2026
|
|
T9A12 - What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?
|
|
0
|
0
|
January 2, 2026
|
|
T9A09 - What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?
|
|
0
|
0
|
January 2, 2026
|
|
T9A07 - What is a disadvantage of using a handheld VHF transceiver with a flexible antenna inside a vehicle?
|
|
0
|
2
|
January 2, 2026
|
|
T8D12 - Which of the following best describes an amateur radio mesh network?
|
|
0
|
0
|
January 2, 2026
|
|
T8D11 - What is an ARQ transmission system?
|
|
0
|
0
|
January 2, 2026
|
|
T8D10 - Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?
|
|
0
|
1
|
January 2, 2026
|
|
T8D07 - Which of the following describes DMR?
|
|
0
|
0
|
January 2, 2026
|
|
T8D05 - Which of the following is an application of APRS?
|
|
0
|
0
|
January 2, 2026
|
|
T8D04 - What type of transmission is indicated by the term "NTSC?"
|
|
0
|
0
|
January 2, 2026
|
|
T8C10 - What is required before using the EchoLink system?
|
|
0
|
0
|
January 2, 2026
|
|
T8C09 - Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?
|
|
0
|
0
|
January 2, 2026
|
|
T8C08 - What is the Internet Radio Linking Project (IRLP)?
|
|
0
|
1
|
January 2, 2026
|
|
T8C02 - Which of these items would be useful for a hidden transmitter hunt?
|
|
0
|
0
|
January 2, 2026
|
|
T8B12 - Which of the following is a way to determine whether your satellite uplink power is neither too low nor too high?
|
|
0
|
0
|
January 2, 2026
|