Elad FDM-DUO multi use SDR transceiver, made in Italy and Kenwood TS-590SG HF 50MHz Transceiver on the RadCom March 2015 Reviews – FlexRadio System FLEX-6700 & FLEX-6300 SDR Transceivers on the QST March 2015 Reviews – (! Note: to access this resource you need to log-in) – Download Presentation HF receiver testiong by VA7OJ’s! (link below)
FDM-DUO Dual Mode SDR Transceiver (Stand-Alone & PC Modes) on the RadCom March RSGB Magazine: Mike Richards, G4WNC looks at the new SDR transceiver that doesn’t have to tie you to a PC.
Kenwood TS-590SG HF 50MHz Transceiver on the RadCom Reviews –
Peter Hart, G3SJX is favourably impressed by the updates to the previous TS-590S.
Link to: RSGB – RadCom March 2015 web page (index)
A proposito di parametri di test e di confronto nei vari ricevitori per HF di tipo supereterodina tradizionali oppure di tipo digitali SDR leggere quanto scrive Adam come riporto qui sotto e poi su QEX n. 3-4 2015.
QST April 2015 reviews the FLEX-6300 nad FLEX-6700 two SDR Transceivers products FlexRadio Systems made in USA (! Note: to access this resource you need to ARRL log-in)
I tradizionali valori di DR3 (3rd-Order Dinamic Range dB), IP3 (3rd-Order Inrcept Point +/- dBm) e di Dinamica di blocco (Blocking Gain Compression dB) sono “numeri” poco validi nel contesto di una radio SDR a campionamento diretto. (-dBFS per un ADC converter) –
Per questo, Adam Farsom, VA7OJ ha proposto di usare come standard il metodo IFSS (Interference-Free Signal Strength) per il test IMD (Two-Tone Intermodulation Dinamic Range) in ricevitori a campionamento-diretto (Direct-sampling SDR). – Adam, VA7OJ wrote a terrific article in the latest March/April 2015 issue of QEX Magazine. – I wish ARRL would standardize on tests, and preferably use the (NPR) Noise Power Ratio test methodology.
[Note] – Detailed specifications: please see the official sources – All specifications are subject to change without notice – All trademarks belong to their respective holders.- This page is just a non-official overview, where no one should draw any conclusions – All images and versions above is for illustration only. (tnx)