Razvan

A 600W broadband HF amplifier using affordable LDMOS devices

Posted by Razvan | Oct 27, 2019 | In the shack |

Update: this project is evolving. See this page for the latest version. The announcement of the...

Icom IC-705 – considerations on RX power draw (wild guesses ahead)

Posted by Razvan | Sep 2, 2019 | In the shack |

I’ll try to put together a breakdown of IC-7300’s sections and how much power those use and try to see how Icom could’ve tweaked those to make the architecture “portable” for the IC-705.

Icom IC-705 HF/VHF/UHF portable SDR transceiver – full details

Posted by Razvan | Aug 30, 2019 | News |

IC-705 has just been unveiled by Icom at the Tokyo Ham Fair. This is a portable HF/VHF/UHF transceiver featuring SDR technology, internal battery, GPS, Bluetooth and D-STAR. Output power is 10W on external 13.8V supply or 5W on internal battery.

Yaesu FT3D – new flagship VHF/UHF handheld

Posted by Razvan | May 15, 2019 | News |

Yaesu FT3D is the next flagship VHF/UHF handheld; features a full color touchscreen display, Bluetooth and many other goodies already present on the FT2D.

US regulator FCC to introduce digital modes practical test for amateur examinations

Posted by Razvan | Apr 1, 2019 | News |

This article was an April Fool’s prank. In a proposal that aims to make new changes to the...

Red Pitaya STEMlab 122.88-16 for SDR transceivers

Posted by Razvan | Feb 21, 2019 | News |

Red Pitaya have just introduced the STEMlab 122.88-16, an updated version of the STEMlab hardware aimed specifically at being used as a DDC/DUC HF/50MHz SDR transceiver.

Yaesu FT-4X review (it is after all a Baofeng)

Posted by Razvan | Sep 5, 2018 | Reviews |

Yaesu FT-4X is part of the new range of handhelds from Yaesu that attacks the concept of low-cost outdoor radios. Rugged casings, IP54 water protection and loud speakers are just some of the main common features