Questions from the General Amateur Radio exam pool part 22. A simple method for Decibel power calculations. Receivers.
Antenna
Big Wheel Antenna for 2m, 70cm and 6m
The “Big Wheel” is a horizontal polarized omni directional antenna. Usually highly directional antennas are used on VHF and UHF, which hav... Read more
End Fed Dipoles : So I need a Counterpoise?
Kenneth, WB3JFR, encouraged this question. Do you need to use a counterpoise just because its “End Fed”? Read more
Triband Receiving Loop for 160/80/40m by AC0C
“Noise is the constant companion of the stealth antenna warrior. And as the 160m season heats up this winter, the noise level of the house with... Read more
Tuning SparkPlug and CAHRtenna Antennas for POTA & SOTA
In this video we tune up the Sparkplug and CAHRtenna antennas. Two great antennas for getting out and playing Portable Ham Radio such as Parks on the... Read more
VHF
Baofeng AR-152 Tactical Military Ham & Airsoft Radio
Baofeng AR-152 VHF/UHF Ham Radio 15W Powerful 12000mAh Battery Portable Tactical Game Walkie Talkie AN /PRC-152 Two Way Radio Read more
Introduction to APRS- the Automated Packet Reporting System
“The Automated Packet Reporting Service is a digital real-time communications system to share tactical information and messages. The most common... Read more
Growing Number of Operators Completing WAS on 222 MHz
After this story was posted, ARRL announced that it has validated the 222-MHz WAS application of John Swiniarski, K1OR, for WAS # 13. His last contact... Read more
![Baofeng DM-5R : Tier II Support [ Update ]](https://qrznow.com/wp-content/uploads/2016/09/BaoFeng-DM-5R-2-190x122.jpg)
Baofeng DM-5R : Tier II Support [ Update ]
Baofeng DM-5R Radioddity has updated the DM-5R listing with this cryptic note about Tier II support: “Support DMR repeater function (DMR Tier I;... Read more
Amazing opening on 144 MHz from Cape Verde Islands to Poland
On Friday the 29th of May 2020, there was an extensive Sporadic-E opening across Europe which reached as high as 144 MHz allowing stations across the... Read more
Equipment
R&S®M3SR Series4100 Software Defined Radios
Key facts Frequency range: 1.5 MHz to 30 MHz (transmission), 10 kHz to 30 MHz (reception) Power classes of 150 W, 500 W,... Read more
Radio Shield RS-UV3
The HobbyPCB RS-UV3 radio module is a 144/220/450 MHz FM transceiver board. The RS-UV3 is a low cost transceiver solution for Packet Radio, repeaters,... Read more
Weird Ham Radios: Manpack Backpack HYS TG-G25W
SPECIFICATION:Built-in 6A Li-ion battery for 10W radio12A Li-ion battery for 25W radioRadioator FanMini size:210*152*44mmFrequency Range: 136-174/400-... Read more
Youkits FG-01 1-72Mhz Antenna ANALYSER
FG-01 1-72Mhz Antenna ANALYSER Assembed unit, tested and ready to use, Portable design easy to carry and operating, Comes with18650 battery pac... Read more
Kenwood TS-480HX / 480SAT
Kenwood TS-480HX / 480SAT Tailor-made for DX’ing, the new TS-480HX HF transceiver raises the bar on portable performance. Despite its com... Read more
Review
PrepComm MMX TearDown – Keyboard CW?
PrepComm MMX TearDown The MMX Multi-band Morse Code Transceiver is the evolution of the DMX-40+ Morse Code Transceiver,and includes the keyb... Read more
Mini DIGITAL PWR / SWR meter review
This is the review of a Mini portable PWR and SWR meter with built-in battery and High SWR warning buzzer. There are also the Xiegu X6100’s outp... Read more
Radio Signals: What happens if there’s a hill in the way?
“Let us understand what happens if you have a hill or mountain in the way of your radio signal because I recently published a video showing you... Read more
10 Reasons Why GMRS is NOT Better Than Ham Radio
“This video is a response to a video I saw by @NotaRubicon Productions where he claims that GMRS is better than Ham Radio. I found the video fun... Read more
RFI from Solar Inverter
RFI from Solar Inverter Lee, KI5ODH, built an off grid solar system for his station. But he is having some trouble. “The inverter is putting out... Read more
