2 Days Off Grid – /P Ham Radio to Japan FT8 Random Wire Antenna

“Hello Operators In the previous videos from this excursion, we covered portable off grid battery and solar power, the Raspberry Pi for data communication over HF Radio. In this video I show you the antenna configuration, and two polar opposite QSOs with the same configuration. It is importable to understand one cannot watch one video from my channel, expecting to understand the journey. These videos are slowly bringing the puzzle pieces together, showing off grid portable power, and uncompromising man portable amateur radio field stations, as the new normal. To do that, we need bespoke batteries, lightweight solar power, capable HF radios, and the imagination of the open source community.”

Review

The Xiegu X5105 : QRP Portable Transceiver

February 21, 2017 No comments

X5105 is a highly portable  transceiver working at HF+6m band, with a built-in power output of 5W. Technical features: double-conversion superheterody... Read more

An Alpha Delta lightning arrester with an intermittent short.

December 17, 2018 No comments

Coaxial Lightning Protectors Alpha Delta N Connector Coaxial Surge Protectors are rated for 200 or 2,000 watts at frequencies up to 3 GHz. They are no... Read more

REVIEW: AIRSPY VS. SDRPLAY RSP VS. HACKRF

February 17, 2016 No comments

When people consider upgrading from the RTL-SDR, there are three mid priced software defined radios that come to most peoples minds: The Airspy, the S... Read more

Review of BTECH UV-25X2 Mobile 2m/70cm FM Radio

February 09, 2019 No comments

what Makes the UV-25X2 Unique: Dual Synchronize Display Mode, Mic Audio Gain Settings, Expanded Frequency Range (up to 520MHz), In depth user’s... Read more

HRN401 – Elmercast 1: From the Ground Up!

February 08, 2019 No comments

Ward Silver N0AX joins Jim Aspinwall NO1PC and David W0DHG for the first of the ElmerCast Series. We talk about GROUNDING! Read more

Covering the Rules on Calling CQ [ ARRL PODCAST ]

April 04, 2019 No comments

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VHF

The Ten Cent Modification You Can Do to Double Your Radio’s Range

July 21, 2015 No comments

by David Spero Some things in life you can never have too much of.  But for this article, we’ll concentrate just on radio range/efficiency! There are... Read more

QYT KT8900 UHF VHF Mini Mobile Radio

May 18, 2015 No comments

  QYT KT8900 UHF VHF Mini Mobile Radio + Programming Cable   Item number KT8900 General Frequency Range VHF:136-174MHz  UHF:400-480MHz Number of... Read more

IRN – International Radio Network

November 20, 2017 No comments

The IRN (International Radio Network) is a VoIP/RoIP system using Teamspeak 3 (TS3) that allows radio users to TX/RX using RF around the World using ... Read more

Unbox the Radioddity GD-77

July 18, 2017 No comments

Unboxing the not-yet-released Radioddity GD-77, their “try again” DMR Tier 1/Tier 2 radio. I describe many of the promised features. It... Read more

TH-D74E Kenwood [ Video Advertising HD ]

September 15, 2016 No comments

This Dual Band Amateur radio is packed with convenient features and the advantage of a digital transceiver with D-STAR, APRS support. Featuring colour... Read more

Vertex VXD-720

May 22, 2015 No comments

Vertex VXD-720 Clear, Quality Communications 512 Channels and 512 Groups 5 Watts VHF / 4 Watts UHF VHF: 136 – 174 MHz UHF: 403 – 470 MHz; 450 – 512 MH... Read more

Antenna

MFJ-226 1-230 MHZ ANTENNA EXPECT TIMES GRAPHIC ANALYZER

April 02, 2015 No comments

  MFJ VNA Antenna Analyzer covers 1 to 230 MHz, 1Hz resolution. •Frequency sweep plots: SWR, Impedance, Resistance, Reactance,Phase Angle, Comple... Read more

Home Brew Lightning Disconnector [ Video ]

November 19, 2016 No comments

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The Random Wire Double Zepp Antenna

April 01, 2016 No comments

Dipoles fed with an open wire line are called “Double-Zepp” or “Doublet”. The dipole (2 x Xm) may have any length, the open wi... Read more

INAC AX-330 – HF Antenna

September 22, 2015 No comments

HF Antenna AX-330, is an antenna that covers the spectrum of HF of 3.4 Mhz. 30.5 MHz continuously. Two loops tuned remotely by two servo motors, fed s... Read more

6M HO LOOP M2 ( 50MHz )

February 16, 2016 No comments

Our 6M HO Loop is the result of a continued development of reduced size, omni–directional horizontallypolarized loop-style antennas. This new de... Read more

NVIS: Near Vertical Incidence Skywave [ PodCast ]

November 09, 2017 No comments

 Sometimes the best direction to send your signal is straight up! Near vertical incidence skywave, or NVIS, is a skywave radio-wave propagation path... Read more

Equipment

The Leopard Military Radio – 1.6 – 170 MHz

December 05, 2014 No comments

  THE LEOPARD  is a compact, rugged and lightweight wideband military radio which offers uncompromised communication for tactical missions in the... Read more

CS108G+ HF Radio [ Pre-Order ]

November 21, 2016 No comments

CS108G+ is an upgraded version of the X108G from Xiegu. Besides the standard features as will be described below, this version has a built in Spectrum... Read more

DU800 – HA8DU Manual Tuners HF+6m

November 09, 2015 No comments

DU 800 HF+6m ANTENNA TUNER FEATURES The DU 800 T optimizes the performance of your antenna and transmitter or SWL receiver by providing adjustable imp... Read more

New release of 144/430 MHz dual bander TH-D74 Kenwood

August 12, 2016 No comments

TH-D74 Kenwood Industry’s first*1 portable amateur radio, supporting on both APRS and D-STAR® JVCKENWOOD will release a new high-end 144/430 MHz... Read more

Yaesu FT-991 [ New Video ]

December 16, 2014 No comments

Yaesu FT-991 Read more

OM4000 HF POWER AMPLIFIER – 4KW

January 06, 2015 No comments

  GENERAL DESCRIPTION OF THE OM4000 HF POWER AMPLIFIER The linear amplifier OM4000 HF is designed for all short wave amateur bands from 1.8 till... Read more