29 February 2016

Icom IC-7300 schematic

Icom IC-7300's schematic just became available, and you can get it here:

Icom IC-7300 Schematic diagram

Not everything is revealed, the RX-ADC is still a blank rectangle although many suspect the LTC2208 is used.

Enjoy !

Odyssey TRX - open-source SDR DDC/DUC transceiver

To be honest, there are so many important things I feel I need to mention about this project I don't even know where to start !

Odyssey TRX is an DDC/DUC SDR transceiver covering 0.1-55MHz with a transmit power of 10mW. It is open source, wich means the community can (and probably will) develop it further to add particular functions and features. It is high-performance, claims VERY impressive receiver and transmitter figures and can control external filters, antenna selection, an automatic tuner or PTT.

16 February 2016

Nice external power pack for SOTA

I just found the ultimate power pack for when going outdoors and working portable. It is called the  Goal Zero Sherpa 50, weights only 544 grams and has 5V USB (to recharge phones/tablets), 19V @ 5A (to recharge laptops) as well as 12V @ 8A (more than enough for any QRP transceiver) outputs.

15 February 2016

Icom IC-7300 available in Japan

Icom IC-7300 is already available in Japan and indeed it's surprisingly affordable. Fujimusen (translation) has the 100W version in stock and it sells for 150984 yen including taxes, wich is 1325 USD / 1183 EUR / 916 GPB.

14 February 2016

Icom IC-7300 first impressions from AB4BJ

Update: IC-7300 available in Japan

The Icom IC-7300 is definetely the talk of the town in this moment and any news about it spreads around really quickly. For those not yet familiar with it,  this is the first direct-sampling SDR transceiver from one of the big three manufacturers,and for more detail you can check out my previous article about it: Icom reveals first SDR, IC-7300. William Jourdain AB4BJ managed to get his hands on an Icom IC-7300, play around with it a little and post a few videos, enough for us to get a better idea on what the IC-7300 can do.

 This last video demonstrating SSB filter and noise reduction capabilities is especially interesting - Icom's DSP functions have always been superb and this falls perfectly in line with what I would expect from the IC-7300.

I am also relieved by the fact that the panadapter display refresh rate seems to be above 25Hz and not around 10-15Hz like a previous video led me to believe.

There is still a bit of speculation about the price and probably the early adopters will have to shell out the usual premium, but expect it to be cheaper than the Yaesu FT-991. Expect the Icom IC-7300 to hit the shelves any day now.

Update: AB4BJ has posted a blog article about the Icom IC-7300 as well, you should check it out.

12 February 2016

Sci-fi series Colony starring Baofeng UV-5R

Colony is a new sci-fi action series set in the near future - the planet is apparently invaded by aliens, the people of Los Angeles are walled in and the city is held under strict military control. It is starring the guy from Lost, the chick from Walking Dead, the guy from House MD and Apollo Creed. Drama, action, mistery, patrolling killer drones, cool stuff.

And don't tell me you didn't see it, because I know you did: there's a damn Baofeng UV-5R on the table, right in the middle of their family drama scene. All the forces in Colony's occupied LA - military, detectives, the resistance move - use it for communications. These are all images from one episode !

So, you'd better learn to field-program Baofengs to prepare for the alien invasion, this is no joking matter.