“Jouni Hiltunen, OH2GVD, sent me this old Soviet Union (Russia, for those of you too young to remember the cold war) military radiotelegraph key. Fascinating device! I examine it in considerable detail. Many thanks to Jouni!”
Antenna
Stealth Antennas by G0KYA
The first edition of Stealth Antennas quickly became the ‘must have’ antenna book for everyone who wasn’t living in acres of land. T... Read more
HF Unity Gain Antenna Survey (#246)
“A Necessarily Incomplete Survey of Amateur Radio HF Unity Gain Antennas–a look at the many, many antennas used in ham radio that have abo... Read more
Multiband Delta Antenna – M0PLK
Multiband Delta Antenna Closed loop antennas are always less sensitive to noise than open driven element antennas (e.g. vertical or dipole). T... Read more
Equipment
QRP Ranger
An innovative portable energy system, optimized for mobile radio in the field. How do you define ‘state-of-the-art’ in mobile radio power? QRP RANGER... Read more
Yaesu on April 27, 2020, introduced a network remote control system LAN unit “SCU-LAN10”
Yaesu Radio Co., Ltd., on April 27, 2020, introduced a network remote control system LAN unit “SCU-LAN10” that enables remote operation by... Read more
MRFX1K80H: 1800 W CW over 1.8-400 MHz, 65 V Wideband RF Power LDMOS Transistor
The MRFX1K80H is the first device based on NXP’s new 65 V LDMOS technology that focuses on ease of use. This high ruggedness transistor is desig... Read more
KP-1 Power Meter – KOHJINSHA – 5KW
KP-1 is a SWR and Power meter employing current transformer covereing the frequency range of 1.8MHz through 30MHz. ■ A large scale analogue cross mete... Read more
Elad FDM-S3 SDR
— WIDEBAND DIRECT SAMPLING RECEIVER —- JAN 2020 SPECIFICATIONS 2 switchable HF Antenna inputs direct sampling 1 VHF Antenna input direct s... Read more
VHF
VR-P25 Power Amplifier for Handheld Radios
VR-P25 is a portable, lightweight, Wide coverage RF booster amplifier for Handheld Radio equipment, proprietary and emerging waveforms. Two Way Radio... Read more
![Baofeng DM-5R : Tier II Support [ Update ]](https://qrznow.com/wp-content/uploads/2016/09/BaoFeng-DM-5R-2-265x168.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
VOXTER UV-W8 VHF and UHF
VOXTER UV-W8 Technical Parameter Model/ General VOXTER UV-W8 Frequency range VHF 136-174MHz UHF 400-480MHz Channel Capacity 2X128 Channe... Read more
Like Father, Like Son: Michigan Ham Wraps Up Grid Master Award
Satellite enthusiast Doug Papay, KD8CAO, of Zeeland, Michigan, has worked all 488 US grid squares via satellite and has been granted Grid Master Award... Read more
ICOM IC-80AD
Switchable VHF/UHF dual bander The IC-80AD provides VHF/UHF dual band capabilities (one band at a time) via a simple band switching system. Wideband r... Read more
Review
Unbox and Test MFJ-849 Digital SWR Meter
MFJ-849$ 169.95 Each Read more
How To Build An SWR / Relative Power Bridge – Part 1
I start building an SWR / Relative Power Bridge. This is a simple circuit. I show you how to wind the toroid coils. The circuit is based on Don Cantre... Read more
Antenna and Analyzer Questions by KE0OG
“New Ask Dave format with Dave Casler and with Ask Dave Editor Trevor Oman, takes on questions about antennas and analyzers.” Read more
Debut of the Hytera AR482G DMR HT : Ham Radio 2.0: Episode 14
This is a new DMR HT from Hytera made for the Amateur Radio Community. In this episode I will show the menu of the radio and the CPS software, and key... Read more
