“June 22nd 2021, I.S.S. is transmitting SSTV through the 26th. Using the method from the previous video to automatically capture every pass, I show how to decode the images from the recorded audio files.”
Antenna
Build an HF long wire balloon antenna
“We made a long wire vertical antenna suspended from a helium balloon over the river, at 25 watts and an MFJ 993b autotuner to tune it on 40 met... Read more
Antenna Separation Anxiety
Scott Machalk, KD8NPJ, has a question regarding how he should separate his four antennas. Read more
The Mighty Rhombic, the King of Antennas
“There was a time, back in the 1930s and 1940s, when the rhombic antenna was the king. A remarkable antenna that had phenomenal directivity and... Read more
Stretching Antenna Bandwidths
Often on the HF bands, we find that the quoted antenna frequency bandwidth is not wide enough to cover the whole band. This can be a particular proble... Read more
ACOM HF Log-periodic antennas
ACOM, Bulgaria manufactures a range of 8, 10 and 12 element HF log-periodic antennas. Their main features are: designed and produced to give top perf... Read more
Review
ICOM IC-R30 Scanning Receiver is Announced
Peter Waters G3OJV at Europe’s Ham Radio Store takes a first look at the IC-R30 which is expected in the first half of 2017. ... Read more
Yaesu FT 817 – CAT, CW decoder, waterfall, frequency readout, audio filter and audio recording.
What this lad has done with this screen for the 817 is astounding. CAT, CW decoder, waterfall, frequency readout, audio filter and audio recording. Wh... Read more
Xiegu G90 HF SDR Transceiver
HF SDR Transceiver Read more
Synchronising VFO Frequency for Multiple tuners – SDRPLAY
“When using the dual tuners of the RSPduo, or multiple RSPs on a single computer you sometimes want them all tuned to the same frequency, e.g. f... Read more
Equipment
DISCOVERY TX-500 – HF / 50MHZ
VIDEO Source: http://ea1uro.com/radio/tx500/ Ver essa foto no Instagram Discovery TX-500, Lab599 Uma publicação compartilhada por Labo... Read more
PandwaRF Bare
PandwaRF is a RF analysis tool with a sub-1 GHz wireless transceiver controlled by a smartphone or a PC. Its purpose is to capture, display & tran... Read more
Rotator Genius – 4O3A
Rotator Genius is a smart rotator controller that uses a magnetic sensor for reading azimuth. It can be controlled by a Windows or Android app. Motor... Read more
MRF101AN: 100 W CW over 1.8-250 MHz, 50 V Wideband RF Power LDMOS Transistor
These devices, MRF101AN and MRF101BN, are designed for use in HF and VHF communications, industrial, scientific and medical (ISM) and broadcast and ae... Read more
New! LAN-IQ SDR (Stand-alone SDR)
LAN-IQ SDR Features Stand Alone Software Defined Radio ● 30 kHz to 1700.00MHz continuous frequency range ● Direct sampling ● DDC – Digital Dow... Read more
News
How well is the VHF Repeater Hearing your Signal?
VHF Repeater “Collin, K0NNK, is having some trouble with is antenna and a nearby repeater. He hit a 2 meter repeater full quieting but the repea... Read more
Dayton Hamvention Expects to be Live Event in 2022
Dayton Hamvention® organizers are planning to mount the first in-person show in 2022, following 2 years of COVID-related cancellations. The event is s... Read more
Big Bright Regions Beckon Amid a Big Aurora Show | Solar Storm Forecast 11.22.2021
“Activity remains subdued this week with only pockets of fast solar wind to bring sporadic aurora to high latitudes, nothing like the G3 show we... Read more
ISS SSTV Dec 1-2 145.800 MHz FM
Russian cosmonauts on the International Space Station (ISS) are planning to transmit Slow Scan TV images on 145.800 MHz FM using the SSTV mode PD-120.... Read more
Superb Antennas – 40m to 13 cm. from The Antennas-Amplifiers Company
Peter Waters G3OJV, introduces this superb range of antennas built to a standard, rarely seen in ham radio. The prices are still competitive and the p... Read more
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