19 November 2014

Yaesu FT-991 - full details and pricing

Some time ago I was posting about the replacement for the FT-897 from Yaesu, the FT-991. It is an all-band, all-mode radio with integrated tuner, 3.5" TFT touch display and 32-bit IF DSP.

Recently the Yaesu FT-991 has been listed on various sites and so the pricing has been revealed:

- Gigaparts (USA): US$ 1800 (discounted to 1699)
- Universal Radio (USA): US$ 1800 (discounted to 1699.95)
- Ham Radio Outlet (USA): US$ 1699.95
- Nevada Radio (UK): £ 999.00 (equivalent of US$ 1563)
- Hamshop.nl (Netherlands):  € 1469.00 (equivalent of US$ 1842)

12 November 2014

About the Rosetta comet landing mission

The Rosetta mission to study Comet 67P/Churyumov-Gerasimenko is getting ready to land the Philae probe on the comet surface, and it will be webcasted live:


The comet's magntic field oscillates at about 40-50miliHerz, and somebody translated the signal into audible spectrum, you can listen to it here:


The European Space Agency (ESA) and the Platige Image studios made a short movie / trailer to honor the event. It's called AMBITION and can be viewed here:

07 November 2014

VHF/UHF transceiver module for US$12 - Dorji DRA818

Dorji 808/818 are a series of FM transceiver modules based on RDA Micro's RDA1845/6 chipsets (yes, the ones in the Baofeng / Pofung handhelds). They offer either VHF (134-174MHz) or UHF (400-470MHz) coverage, 0.5-1W RF power output, CTCSS/DCS and -122dBm sensitivity in a a package about the size of a coin (19mm*36mm).