Amateur Radio

By Willi Kraml (OE1WKL) | Amateurfunk - Ham Radio

Baofeng UV-5R Radios Illegal? The Real Story.

The ubiquitous Baofeng radio, I’m sure that just about every ham that is active on VHF and UHF has one of these radios. And why not, they are quite …

Bands

Amateur Radio

<b>Amateur Radio: Usable HF Frequencies <br>(page refreshed every 20 minutes)</b> <br>Use the indicated color (red, yellow, green, blue, white, etc.) to …

Squelch Pop Suppression on the Baofeng UV-5 HT Portable Radio

article<p>https://blog.adafruit.com/2018/08/13/squelch-pop-suppression-on-the-baofeng-uv-5-ht-portable-radio/<p>The Baofeng UV-5 is an inexpensive ($25 US) …

Testing a Software Defined Radio Minimum Detectable Signal on HF

Some neat testing by David Rowe in Australia who has used HF radio and open source to connect people in rural communities. His current work involves …

Testing the Raspberry Pi as a Radio Transmitter running rpitx @Raspberry_Pi

Another spot on post by David Rowe at his Rowetel blog. He’s experimenting using the software rpitx to generate 2FSK waveforms at HF …

A New FT8 with Rag Chew Abilities ( FT8CALL )

FT8 has taken over the airwaves as <i>the</i> digital communication mode for making QSOs over HF/VHF/UHF. The mode has been widely popular as the latest …

Linux

JAXA to launch FM voice transponder satellite Diwata-2

Diwata-2 satellite<p>The Philippine <b>Diwata-2</b> satellite carrying an amateur radio FM transponder and APRS digipeater is expected to launch in …

Space Exploration

Storm Takes Down Antennas at Memorial Ham Station on Swedish-Norwegian Border

The SJ9WL-LG5LG <b>Morokulien</b> memorial station on the border of Sweden and Norway is off the air after a large tree, brought down during a severe storm …

Disability

HAARP’s WSPR Research Campaign Yields Hundreds of Reports on 40 and 80 Meters

Just-completed research at the High-Frequency Active Auroral Research Program (<b>HAARP</b>) transmitters in Gakona, Alaska, successfully took advantage of …

Ocean Exploration

Indonesian Hams Take Advantage of Satellite for Post-Earthquake Communication

Amateur Radio volunteers in Indonesia have been taking advantage of the LAPAN-ORARI (IO-86) ham satellite in addition to HF on 7.110 MHz as the …

Lombok

CN8KD - Rabat - Morocco - Forums

Mohamed Kharbouche, CN8KD is active from Rabat, Morocco. He is working on HF Bands and 6m Band. QSL via EA5XX direct only, LOTW. Ads for direct QSL: …

Some AREDN progress

We have been working on bringing up an AREDN mesh network at ARRL HQ and here at AA6E. AREDN, the Amateur Radio Emergency Data Network, has developed …

Raspberry Pi

Recent Noise Mystery Solved

You may recall a <b>recent blog</b> regarding my installation of a new pair of inverted-V dipoles, fed from a common coaxial feedline at around 85'. Both …

Off Grid Clock sync on Raspberry Pi Ublox USB GPS

Hello operators.<p>One of the benefits of doing these off grid series, is the knowledge we gain from getting out of the office and out into the field. …

Raspberry Pi

Building a Tracking Mount for HRPT Weather Satellite Reception Part 2 - rtl

Satellites

Antenna Topics: A 20 meter vertical antenna with tuned counterpoise, post #190

If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=cu-Qq4RptS4.<p>If you enjoy 2 …

Stratosphärenballon-Aufstieg in Flensburg am 10. August – so war’s

Der mit Spannung erwartete Start eines Stratosphärenballons mit Amateurfunknutzlast am Flugplatz Flensburg-Schäferhaus erfolgte am vergangenen …

Flensburg

CORSO PER RADIOAMATORI .. ONLINE

ciao a tutti,<br>dopo anni di corsi tenuti "in aula" per il conseguimento della patente di OM, quest'anno saremo ONLINE! Sara' possibile usufruirne da …

Maxon America TP-8402 4W UHF Portable Land Mobile Radio

The TP-8000 Series two way radio is one of the most powerful models in the Maxon lineup. This is a full featured radio with 512 channels, display, …

Portable

SDR Tranceiver - Clocks

SDR Tranceiver - The Quadrature Clock<p>The Clocks<p>I was not happy with the DDS, so I went ahead to use the SI570 clock as used by numerous designs. Its …

SmartSDR for iOS v2.6.2 Now Available

FlexRadio Systems announces the release of SmartSDR for iOS v2.6.2 is now available for download or update from the Apple App Store.<p>This App requires …

IPad Pro

More QSLs: N4DAD, K4DAY

These both came in the mail on Friday. The card from K4DAY is the second “DAY” in a couple of months. It would have been more appropriate to have …

SkookumLogger v2.2.9 now available

Post Views: 11<p>Bill Myers, K1GQ, released version 2.2.9 of his contest logging software SkookumLogger for macOS.<p><i>SkookumLogger</i> is a full-featured …

Disability

SmartSDR for iOS v2.6.2 Now Available

Post Views: 18<p>FlexRadio Systems announces the release of SmartSDR for iOS v2.6.2 is now available for download or update from the Apple App …

IPad Pro

SMΩRF RF Vector Power Meter by microHAM [ Video ]

SMΩRF™ is the vector power meter. Connects to the power RF signal by remote sensor, available in several models for power levels up to 12KW and …

Z21MH - Zimbabwe

Massimo, IZ0EGB will be active from Zimbabwe starting end of the 2015 as Z21MH.<br>He will operate on 40 - 6m SSB using 100 watt transceiver and dipole …

National Parks

Antenna Topics: A 20 meter vertical antenna with tuned counterpoise, post #190

If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=bpl3TRXqaoM.<p>A good, basic …

Der Weitblick vom 12. August

Auszug aus dem DX-Mitteilungsblatt:<p>Tonga: Hardy, DL7JLL reist nach Tonga und wird vom 08. August bis 14. September als A35JLL von verschiedenen …

Internationale Raumstation (ISS)

Three Cheers for the uBITX! Keeping problems in perspective...

<b>This morning I was looking at Farhan's uBITX page. He got philosophical at the end of the circuit description:</b><p><i>As a fresh radio amateur in the 80s,</i> …