Icom IC-7300 New! – Toyko HamFair 2015

IC-7300 that Icom has been announced, in SSB / CW / RTTY / AM / FM transceiver of HF ~ 50MHz band, “IC-7300″ of 100W output, “IC-7300M” of 50W type, of 10W type “IC- 7300S “me to line up. Features are as follows.
– It is equipped with a high-performance real-time scope equipped with a practical skills
Amateur radio’s first adopted the “RF direct sampling method”
(as the main amateur radio equipment manufacturer)

The implementation phase noise characteristics that transcend the class
Equipped with a large color TFT LCD display that corresponds to the touch panel
– In a compact body, and a built-in antenna tuner
– Audible high sound quality is achieved.







Elad FDM-DUO standalone SDR HF+6m transceiver Dayton Hamvention® 2014 Product Made in Italy

Things seem to be going the right way for SDR technology. The latest spawn from Italy – calledELAD FDM DUO – definetely got my interest; we are talking about a direct sampling full SDR transceiver for HF/6m, that can also run standalone. The closest thing to it might be the Elecraft KX-3, but that is considerably behind in technology and still manages to have one of the top recievers aroundImmagine.

The ELAD FDM-DUO recieves from 9KHz to 52MHz and covers all the amateur bands from 160m to 6m, claiming an MDS of -132dB and an BDR or +115dB @ 500Hz. Power output is only 5watt

Besides being standalone, it can also be attached to a computer so you can benefit from all the power of the SDR technology: big spectrum analizer (up to 6MHz), dual recievers, total control via their SW-2software etc.



Here’s what makes it go:
– ADC: Linear Technology LTC2165 clocked at 122.88MHz
– DDC: Xilinx Spartan 6 XC6SLX25 FPGA + serial flash
– DDS: AD9957
– 2x STM32F4 microcontrollers

What I don’t like about it is the fact that it is not concieved as a product, but looks more as a technological demo, made entirely by engineers. The hefty pricetag (1160EUR, about US$ 1600) asks for a good user interface, useful output power and decent build quality, otherwise it will be just a stillborn novelty – interesting from a technological standpoint but not appealing to purchase and use. FDM-DUO’s kickass electronics with 100W output and a useful front panel could definetely your main station transceiver. 

FUNcube-1 Launch Date Announced

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AMSAT-UK and AMSAT-NL are delighted to be able to announce that they have been advised that the launch date for FUNcube-1 is now expected to be late November 2013. The date is still subject to final approval by the authorities.

The FUNcube project started back in 2009 so it is a great relief that we now have a confirmed date for lift off.

FUNcube-1 will lift off from the Yasny launch base located in the Orenburg Region, Russia on a Dnepr Launch Vehicle that will insert multiple satellites into a 600 km, 97.8º inclination sun-synchronous orbit.

FUNcube-1 is a 1U CubeSat that will provide a signal directly from a satellite in space to the classroom, and can easily be received by schools and colleges. The target audience is students at both primary and secondary levels. The information will be displayed in an attractive format and provide stimulation and encouragement for…

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14-30 MHz Magnetic Loop Antenna

The small magnetic loop antenna is a compact efficient antenna that is ideal for portable deployment or for limited spaces and that can be improvised inexpensively.  The antenna is essentially a tuned circuit with an inductor formed by a loop of wire measuring less than 1/4 wavelength and resonated to the operating frequency with a capacitor.  Due to its low radiation resistance and large circulating current, the loop must be constructed of a large outer diameter conductor of low resistance for best efficiency.  Typically these loops are built from coaxial cable, hardline, or copper or aluminum tubing.  These loops have a very narrow bandwidth and require a variable capacitor (and preferably a reduction drive) to be resonated at the operating frequency.  Air variable capacitors or vacuum variable capacitors are used due to the voltage on the order of several thousand volts that is developed across the capacitor.  In order to maintain the lowest possible series resistance, soldered connections and a “butterfly” or split-stator capacitor are preferred. The addition of a fixed capacitor in parallel with the variable capacitor will allow operation of this antenna on 7 or 10 MHz at reduced efficiency by Dr. Carol F. Milazzo, KP4MD


Construction of a Compact and Efficient Portable High Frequency Antenna

Thank you very much for the work done Carol F. Milazzo, KP4MD

New Yaesu FTdx-1200



Download FTDX 1200 Brochure 

Data Format for Korean OSSI CubeSat

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Open Source Satellite Initiative Korean CubeSat OSSI-1Information has been released on the data format to be used by the Open Source Satellite Initiative (OSSI) CubeSat developed by Hojun Song DS1SBO.

The OSSI Data Format spreadsheet can be seen at https://docs.google.com/spreadsheet/ccc?key=0AjtQ6cJ4QOqJdGpHNnRtUWZJV0w4TTFKRU9WYTZqc3c#gid=5

OSSI-1 is planned to launch April 19, 2013 into a 575 km 63° inclination orbit on a Soyuz-2-1b rocket from the Baikonur launch facility in Kazakhstan along with the Bion-M1 satellite and the SOMP, BEESAT 2, BEESAT 3 and Dove-2 CubeSats. The OSSI VHF beacon is understood to be using 12 WPM CW.

Open Source Satellite Initiative OSSI CubeSat Wiki http://www.uk.amsat.org/?p=12231

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144 MHz Halo Antenna

Construction of a Low Cost Omnidirectional Horizontally Polarized Antenna for 144 MHz




Antenna HALO per i 144 MHz. La realizzazione di un’antenna può sembrare, alcune volte difficoltosa. Molte di queste infatti necessitano di particolari accorgimenti costruttivi che rendono l’antenna robusta e sicura alle intemperie. Non sempre però questi accorgimenti costruttivi si rendono necessari, come ad esempio quando si desidera sperimentare una antenna nuova e con forme diverse da quelle che solitamente siamo abituati a vedere.

Una di queste antenne è la HALO. Questa antenna a colpo d’occhio stupisce per la strana forma che ha, ma se la si guarda con attenzione si può vedere che non è altro che un dipolo a mezz’onda munito di Gamma Match che viene piegato in modo da formare un cerchio: questo accorgimento costruttivo riduce lo spazio occupato dall’estensione del normale dipolo, ma ne mantiene la direttività.

In pratica, piegando il dipolo in modo da formare un cerchio riduciamo lo spazio occupato dal normale dipolo quando esso, esteso, gira: questo particolare accorgimento non rende l’antenna omnidirezionale in quanto il dipolo pur avendo acquisito la forma di un cerchio mantiene la direttività, pertanto l’antenna dovrà essere orientata verso il corrispondente in modo da avere il maggior segnale possibile. Un’antenna di questo tipo si presta molto bene per l’uso mobile.

STAMPFL Experimental Short all Mode Receiver

This is Experimental Shortwave HF band receiver (130kHz to 30MHz) with AM-FM-USB-LSB-CW mode and including sensor screen pad. The hardware designed by HB9KOC. The software developed by HB9QN.




 Some details you can see on YouTube video

Nuovi apparati radioamatoriali ICOM IC-7100 e YAESU-FTM400D

Grandi novità con l’arrivo dell’autunno dedicate ai radioamatori; si tratta di due nuovi ricetrasmettitori di casa ICOM e Yaesu. Per quanto riguarda la ICOM si tratta del modello ICOM IC-7100,  un apparato quadribanda HF+50+144+430 MHZ D-STAR che copre anche la gamma dei 4m. Per ora sono solo rumors e non si conosce ne la data di rilascio ne tantomeno il prezzo.

Queste le principali caratteristiche:
All mode incluso D-STAR
Frontalino separabile con touch screen
Potenza di uscita: HF (100W) – 50MHz (100W) – 70MHz (50W) – 144MHz (50W) – 430MHz (35W)
Filtri DSP in media frequenza
Stabilita’ in frequenza +- 0.5 ppm

Per quanto riguarda invece la casa Yaesu, il nuovo modello si chiama Yaesu FTM-400D, questa volta parliamo di un ricetrasmettitore veicolare bibanda digital FDMA e Bluetooth.
Anche in questo caso non si conosce ne la data di rilascio ne tantomeno il prezzo.