“It occurred to me that my Garrett metal detector is a signal source at 13.6 KHz, so I decided to test to see if the Airspy hF+ Discovery is able to receive down that low. (And find out if the metal detector is using a modulated signal.)”
Antenna
A Simple Wire Tuner
Here’s a basic, but effective and efficient, antenna tuner for feeding random wires, especially half-wave end-fed wires. Read more
![Do You Really Need a Tower? [ ARRL PODCAST ]](https://qrznow.com/wp-content/uploads/2018/11/tower_roof-265x168.jpg)
Universal DIY Carbon VHF Yagi Antenna
by:Jenny List “If you’ve ever cast your eye towards the rooftops, you’ll be familiar with the Yagi antenna. A dipole radiator with a refl... Read more
CHALLENGER DX – 8 Band Multiband Antenna
THE CHALLENGER DX The Challenger antenna is the first production multiband antenna to utilize GAP technology. Thousands of Challengers are now... Read more
Yaesu Antenna Rotators G 450A
G-450A Specifications Power Supply Voltage: 117 VAC, 50-60 Hz Power Supply Current Consumption: 0.5 Amps Rotor Voltage: 24 VAC Cable Conductors... Read more
VHF
Overview of 50 MHz status in ITU Region 1 (2016)
IARU Region 1 has issued a new version of their Overview of 50 MHz Status document dated Feb 13, 2016 It shows which Region 1 countries currently have... Read more
145 MHz Low Loss Bandpass Helical Filter
Low Loss Bandpass by Mile Kokotov Basic design of the filter is from RSGB VHF-UHF Manual, but I made some modifications. Both Inductors... Read more
Wouxun KG-B55 Dual Band 2m/440 Base Station
The Wouxun KG-B55 Dual Band UHF/VHF base station combines the ever popular KG-UV920P-A dual band mobile radio with dedicated a power supply int... Read more
New 144 MHz Transatlantic Record Reported
The claimed transatlantic record on 2 meters has been extended to nearly 4,760 kilometers (2,951 miles). “The incredible tropo conditions between Cape... Read more
ANYTONE AT-779UV – Dual Band Mini Mobile Radio
The Anytone AT-779UV Dual band Mobile radio is a compact rugged 25 watt mobile radio Factory pre-programmed with the Moonraker code plug including all... Read more
Equipment
ACOM A1200S 1.8 – 54MHz Power Amplifier
ACOM A1200S Five inch (5”) (108x65mm) high resolution color display, 800×480 pixels and 24-bits colors. The final stage uses field effect (MOSFE... Read more
Connecting the MX-P50 amplifier and LDG Z11 pro tuner to the IC-705
Connecting the MX-P50 amplifier and LDG Z11 pro tuner to the IC-705. Read more
BAOFENG BF-888S UHF FM
BAOFENG BF-888S Product Features and Technical Details Product Features 50 CTCSS/105 CDCSS/VOX Function Voice Prompt/PC Programming/voice scramble/enc... Read more
LDG Z-100PLUS/IC-705
Auto Ant Tuner with 2000 Memories Pkgd For IC-705 The Package is IC-705 Ready and Includes The Following: 8 Heavy Duty AA Batteries Icom IC-705 I... Read more
BEKO HLV-1250 2 Meter RF Power Amplifier with 1,250 Watts RF output
Designed for Weak Signal, Tropo Scatter, Meteor Scatter, Digital, & Contest Operation! The BEKO HLV-1250 is a special 25th Anniversary Amplifier c... Read more
Review
Custom Coax Cables for Your Station
Custom Coax Cables “Mark, W8BBQ shows how easy it is to use the DX Engineering Custom Cable Builder. Just four easy steps! The builder lets you... Read more
NanoVNA comparison measuring a duplexer – NanoVNA-H4 and SAA-2N
“Is the NanoVNA suitable to measure/adjust a typical antenna duplexer? This video compares the NanoVNA-H4 and the SAA-2N VNAs with a professiona... Read more
Yaesu FT-70DR ” Full Review “
FT-70DR is a compact and very attractively priced YAESU System Fusion transceiver providing both conventional analog FM operation and the advanc... Read more
Unboxing TYT MD-380 – HRN 267
Unboxing a TYT MD-380 DMR HT, and a lot more rambling (because we don’t do unboxings). I also talk about the BTech (BaoFeng) UV 5×3 tri-ban... Read more
![So Now What? The New Ham Radio Starter Pack [ Podcast ]](https://qrznow.com/wp-content/uploads/2019/03/0a03e0a6148da6b32909855dd8df674b-265x168.jpg)
So Now What? The New Ham Radio Starter Pack [ Podcast ]
A look at the types of equipment that new hams need to get started on their amateur radio journey, and the importance of doing your research. Read more
