“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
Active Antenna Amplifier (model AAA-1C)
Active Antenna Amplifier The Kit The amplifier kit consists of the following parts: Amplifier board (mounted and tested) Control board (mounted and te... Read more
To Resonate or Not to Resonate?
Ben, K0ABR, simply asks Is resonate better than non resonate antenna? Read more
OB12-6 12 Element Yagi 40-20-17-15-12-10m – Optibeam
Unique in the world: 6 bands – no traps – 1 feedline – no tuning – perfect performance The new version of the OB12-6,... Read more
DxGlider52: Ultimate DX-Contest Tribander 18 elements ~ 52ft boom
18 elements ~ 52ft boom ~ Amazing! WA3FET has done it again! The aptly named DX Glider is the Ultimate Triband Yagi. No compromise monoband pe... Read more
Monocone HF Antenna
Source:Link Read more
VHF
SR10 – Bluetooth® Two-way Radio Adapter
The SR10 is a Bluetooth Two-way Radio Adapter based on Bluetooth 2.1+EDR technology. You can connect various two-way radio devices in the marke... Read more
DVMega and Pi-Star DMR Hotspot – Ham Radio Q&A
“Don’t let the lack of a repeater keep you from playing with DMR or another digital mode. DMR repeaters are springing up everywhere. There are c... Read more
Comet GP-15 Tri-Band VHF/UHF Base Vertical Antennas GP-15
Comet GP-15 Tri-Band VHF/UHF Base Vertical Antennas provide good gain figures on the 6-meter, 2-meter, and 70-centimeter bands in a compact 7.9 foot p... Read more
‘The VHF/UHF DX Book’, 2017 Replica Edition, is now available for free download
2017 Digital Replica Edition The VHF/UHF DX Book was written in the early to mid-1990s by a team of experienced VHF/UHF DXers and equipment developers... Read more
2,4GHz Helix-Antenna
Thing files are at https://www.thingiverse.com/thing:3849410/apps And the rain cover is at https://www.thingiverse.com/thing:3899156 Read more
Equipment
New ! Kenwood TPZ-D553
Kenwood TPZ-D553 Product name TPZ-D553TPZ-D553SCH: lithium-ion battery KNB-74L (7.4V / 1100mAh) standard accessory TPZ-D553MCH: lithium-ion battery KN... Read more
The Foxx-3 Transceiver – 80m, 60m, 40m, 30m, 20m versions available
Connections are as follows: antenna via 50 ohm BNC, power via 2 pin 0.1″ header, headphones via 3.5mm mono or stereo jack plug or 2 pin h... Read more
Alpha 4040 DreamTuner
“In the last 45 days, we’ve made a lot of progress on the Alpha 4040 DreamTuner. As you know, when we tested the tuner under full... Read more
HF Linear 2KW HF2015DX – Chinese
HF2015DX RF Linear amplifier coverd 1.8-30MHz amateur band , using Chinese FU728F ceramic tetrodes working at Class AB1 Input:30-40W output:2000W... Read more
DR4020 Dual band Digital QRP radio
A simple QRP digital transceiver. — Fully assembled and tested– Perfect for outdoor digital radio contacts,such as FT8,FT4,JT65 etc. Band: 20... Read more
Review
Unboxing Kenwood TH-D74A
Kenwood TH-D74A 144/220/430 MHz TRIBANDER. Triband Amateur radio packed with convenient features and the advantage of a digital transceiver with D-STA... Read more
Ham radio HF Go-Kit QRP contacts FT-817 emcomm SHTF doomsday
Here is a video about my go-kit with my FT-817 and making some contacts QRP. Videos on almost all items can be seen on my channel. In this kit i have... Read more
SDR School Part One The Basics
“If you feel a little left behind with all this new-fangled SDR stuff, this video is for you! SDR School is presented in a non-technical fashion... Read more
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Yaesu FT DX3000 Review [ Video ]
YAESU FT DX3000 Review Read more
