A new world distance record of 139 kilometers (86.2 miles) is being claimed by radio amateurs in northern California. This tops the record of 114 kilometers set in 2005 by WA1ZMS and W4WWQ, according to the Distance Records on the ARRL website.
The February 17, 2020, contact was between Mike Lavelle, K6ML, on Mount Vaca (CM88WJ75ON) at 835 meters (2,739.5 feet) above sea level, and Oliver Barrett, KB6BA (at 1225 UTC), and Jim Moss, N9JIM (at 1250 UTC), both on Mount Umunhum (CM97BD18VJ) at 1,016 meters (3333.3 feet) above sea level.
Lavell reports the dew point was –11 °C, the air temperature was 15 °C, the path loss was about 225 dB, and atmospheric loss was approximately 0.35 dB/kilometer.
“CW was used, 122 GHz signals were very weak (7 dB above the noise in 22 Hz; –13 in 2500 Hz equivalent) with [fading] down to the noise floor,” Lavelle told ARRL. “Dishes were aligned on 24 GHz (71 dB above the noise) prior to [moving] to 122 GHz; we heard signals right away on 122 GHz.” The stations employed 60-centimeter satellite TV dishes and ran “somewhat less than half a milliwatt” on 122 GHz, Lavelle said.
Would you like a wireless mic option for your ICOM radios? Well, there is a way to do it with a Uniden CB mic. And it’s kind of neat! Read more
The ACOM 2020S is a state-of-the art 1500 W heavy-duty, solid-state linear amplifier, covering all amateur bands from 1.8 to 54 MHz. It features a Rem... Read more
Aaronia presents the SPECTRAN® V6 X: the world’s first and only 8 GHz USB spectrum analyzer with dual USB true I/Q streaming of up to 245 MHz (v... Read more
Effective October 1st 2022 WiMo Antennen und Elektronik GmbH (WiMo) will be the exclusive distributor for the complete 4O3A product family, including... Read more
In the beginning was CTR The Mini and Mini+ are the third generation of radio controllers that I’ve designed and built. CTR stands for Control The Rad... Read more
Win4IcomSuite There is a new release of Win4IcomSuite (version 1.430). This release averaging in the SDRPlay spectrum and includes a few bug fixes. Wi... Read more
IC-705 type firmware product name IC-705 version Version 1.30 release date 2022/10/13 Major changes Changes from Version1.27・Added DV repeater monitor... Read more
SDRuno Check out Mike KD2KOG’s new video guide to this feature: Documentation is on page 66 of the updated manual: https://www.sdrplay.com/docs/SDRpla... Read more
I’ve ported some code by Mark Erbaugh See More:Link Read more
Win4IcomSuite There is a new release of Win4IcomSuite (version 1.422). This release adds support for the Scroll modes for the CI-V based panadapters a... Read more
When you want to tell people you’re into FT8 without telling them you’re into FT8 Warm, comfortable and soft, this hoodie is a perfect cho... Read more
Kevin, KF0IPD, Is having problems with his audio. He is wondering if their is a setting on the 7300 that powers down the sound card inside the radio w... Read more
VarAC What is VarAC? VarAC is a FREE, modern HF P2P real-time chatting application for the amateur radio operator that leverages the gloriou... Read more
Hello Operators. In this episode of the OH8STN ham radio, we are discussing replacing the raspberry pi field computer build, with the Microsoft Surfac... Read more
FT8 is a mode in the WSJT-X software developed by Dr Joe Taylor K1JT. In this video I show how to get started and make contacts with FT8, introduction... Read more
Here we take a look at the Moonraker Firespot. An MMDVM Digital Hotspot that uses an Orange Pi in replacement for the hard to get hold of, Raspberry P... Read more
Eddy, K6SDW, is trying to find out which SWR meter he sould us. He wants to know which SWR meter should he use to tune the antenna circuit, the built-... Read more
HF SDR Transceiver 10W Amateur Radio AM FM CW SSB FX-4C Read more
Check out this custom solution for Ralph’s Icom IC-705 Read more
I’m breaking it down this time, One of the all time most asked questions I get, Should you buy the Icom or the Yaesu? Do looks matter? Read more