Category Archives: Uncategorized

New SSB/CW dual-band for 4 and 6 meters

Good news. This looks like a great rig. I want…

Hans PD0AC's avatarHam Radio Blog PD0AC

Still in beta, but might be interesting for the European market. A company called “Noble Radio” (link) is developing a dual-band SSB/CW transceiver for 4 and 6 meters. Price point unknown at this time.

Noble Radio

Preliminary Technical Specifications

Frequency Coverage
4M: 69.9 MHz to 70.5 MHz
6M: 50.0 MHz to 52.0 MHz

Modes:
SSB (USB & LSB) and CW

Circuit Type: Down converting design
Dual Conversion: 1st IF: 10.7 MHz 2nd IF: 25 kHz

Sideband elimination using phasing techniques with digitally generated Quadrature carriers and Image Reject Mixers preceded by 15 kHz crystal roofing filters

Ultimate receiver bandwidth set by adjustable SCAF filters (two 8th order filters used. One for High Cut and one for Low cut)

Sensitivity:
MDS = -130 dbm

Dynamic Range Figures:
Blocking: 110 db
IMD (3rd Order) = 95 db

Selectivity:
500 Hz to 4 kHz adjustable with the SCAF filters
Ultimate attenuation of filters are 55db…

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