QRPblog

A 600W broadband HF amplifier using affordable LDMOS devices

by Razvan | Oct 27, 2019 | In the shack | 49 |

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)

by Razvan | Sep 2, 2019 | In the shack | 1 |

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

by Razvan | Aug 30, 2019 | News | 19 |

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

by Razvan | May 15, 2019 | News | 1 |

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

by Razvan | Apr 1, 2019 | News | 7 |

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

by Razvan | Feb 21, 2019 | News | 0 |

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)

by Razvan | Sep 5, 2018 | Reviews | 20 |

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

ADE-1-24 mixer

by Razvan | Jun 8, 2018 | In the shack | 5 |

ADE-1-24 are double-balanced RF mixers that can be easily found all over eBay, Aliexpress and...

Yaesu FT-818nd user manual

by Razvan | Mar 1, 2018 | News | 0 |

The Yaesu FT-818nd user manual has been published. It can be downloaded from here: Yaesu FT-818nd...

Amateur Radio Weekly – great newsletter

by Razvan | Feb 14, 2018 | News | 0 |

I recently discovered the Amateur Radio Weekly – a newsletter put together by Cale (K4HCK), and I was impressed. The content is wonderfully curated, it looks amazing and the overall impression is very professional.

Yaesu FT-818 details leaked (FT-817nd replacement)

by Razvan | Feb 8, 2018 | News | 5 |

Rumors about the Yaesu FT-818 have been circulating for about 6 years and now we get to see the first details on the new portable QRP all-band all-mode transceiver from Yaesu. Finally, the replacement for the very successful Yaesu FT-817nd is about to see the light of day.