Antenna
KT31WARC, 18.068-18.168 / 24.890-24.990 MHZ
The updated KT31WARC offers flexibility in size and frequencies. It is truly unique in many ways. The KT31WARC covers 12,17 and 20 or 30 meters. 20 or... Read more
Wideband Antennas for SDR Radios
Flip, W4FLP, asked about options for wideband antennas for the popular RSP-DX software defined radio from SDRPlay. We cover three that should work fin... Read more
Ham Radio experiment – End fed half wave antenna sloper vs flat horizontal orientation
https://youtu.be/BgEtQOS8mY0 Read more
Yagi Configurations
“Calvin, N7AY, inspired Dave’s General overview of many common questions concerning Yagi’s… Watch to learn more.” Read more
Resonant Frequency of Antennas
“The feedline to an antenna will perform better if the antenna has the same impedance. Jim Heath W6LG uses the RigExpert AA-2000 to measure a sm... Read more
VHF
Baofeng BF-UVB2 Plus VHF UHF Dual Band Two Way Radio Walkie Talkie
Baofeng BF-UVB2 Plus Two-way Radio Handheld Walkie Talkie VHF/ UHF DUAL-BAND TWO WAY RADIO . Dual-band handheld transceiver with display func... Read more
What’s Inside The Retevis RT97 Portable Repeater?!
Retevis RT97 Portable Mobile Analog Mode Repeater Features: 1, Customizable: The TX and RX frequencies can be customized between UHF (400-470MHZ) 2,... Read more
Recent activity on the 23cm band RNSS Coexistence Studies
The Chair of IARU Region 1 Spectrum Affairs, Barry Lewis G4SJH, reports on the work being done in defending the interests of the Amateur Services... Read more
BaoFeng DM-5R Dual Band DMR Digital Radio
BaoFeng DM-5R DMR Digital Radio VHF/UHF 136-174/400-480Mhz 2000mAH High Capacity Battery High Power/Low power 21CM Dual Band Antenna 8-Level Stepped F... Read more
![Handheld Transceivers [ ARRL PODCAST ]](https://qrznow.com/wp-content/uploads/2019/04/maxresdefault-1-2-265x168.jpg)
Handheld Transceivers [ ARRL PODCAST ]
These little radios are packed with features, but which one is best for you? Read more
Review
MFJ-4403 Voltage Conditioner
Protects against reverse voltage, over-voltage, voltage transient, and short circuits. Super noise and ripple filtering … Power supply bufferin... Read more
Radio Receiver Sensitivity
The sensitivity of a radio receiver is a key operational parameter and it is limited by the system noise. The sensitivity of a radio receiver determin... Read more
Field Testing The MFJ Octopus Antenna | Did It survive the wind?
“This time, I’m out in the field (way out in the Arizona desert) Field testing the MFJ Octopus antenna. So how does it hold up in 60 MPH w... Read more
Annual Armed Forces Day Crossband Test Postponed
Due to the ongoing COVID-19 response and mitigation actions, the 2020 Armed Forces Day (AFD) Crossband Test scheduled for Saturday, May 9, has been po... Read more
Battery Powered Automatic Antenna Tuner, 100 Watt Max, Portable Ham Radio Tuner Review/Demo
“Here is a small $100 portable battery powered ham radio antenna tuner, which deserves a review. I have it connected to my Icom IC-705 but you c... Read more
Equipment
sBitx Developer Preview Released
sBitx SDR Transceiver is now available for order from hfsignals.com. sBitx SDR Transceiver comes down from the long line of the world’s most popular B... Read more
PowerGenius XL™ – FlexRadio 1500W Solid State Amplifier
The PowerGenius XL is a 100% duty cycle, legal limit (1500W ICAS) 1.8-54 MHz RF amplifier intended for both amateur and government use. It incorporat... Read more
![Ranger RHF-618 Base Station [ 28 and 24 MHz]](https://qrznow.com/wp-content/uploads/2022/01/s-l1600-265x168.jpg)
Ranger RHF-618 Base Station [ 28 and 24 MHz]
Ranger RHF-618 Base Station 4.3″ TFT LCD Panel Soft TOUCH Panel buttons around the displayIT IS A TOUCH SCREEN also RCI-2950CD reliable electric... Read more
HG-1 PORTABLE REMOTE LOOP TUNER
The HG-1 Remote Loop Tuner (available June 1, 2018) is a compact, easy-to-use remote tuner for a Magnetic Loop Antenna (MLA). It is designed specifica... Read more
DX-Patrol SDR ( Software Defined Radio ) Receiver with wide receiving range
The DX-Patrol is a Software Defined Radio (SDR) receiver with a very wide receiving frequency range. In contrast to the usual cheap USB DVB-T sticks t... Read more
