RIGblaster Nomic Specifications

RIGblaster Nomic
Specifications

Sound Card Interfaces

Nomic Specifications

Overall Dimensions (maximum, w/o cables)	1.5 H x 2.25 W x 3.25 D inches
Weight	4 oz.
Frequency response sound card input	100 Hz - 15 kHz, ± 1dB
Distortion sound card input	Less than 0.1 % THD @ 1kHz
Input impedance (from sound card)	600 ohms resistive, minimum
Sound card level adjustment range	-34 dB to > -120 dB
PTT compatibility	Transistor logic only, tube amps not supported. Positive pull down .15 V min. @ 2 mA. max
Serial interface (DB9F connector)	Standard RS232
RS232 Pin Assignments (DB9 PC signal set) Pin 4 Data Terminal Ready (PTT control) Pin 5 Signal Ground (isolated digital common) Pin 7 Request To Send (PTT control)
The sound card audio is isolated from ground using an audio transformer. A high grade DC blocking capacitor on the sound card to mic. output is provided for use with radios that are designed for use with amplified or electret microphones. An opto-isolator provides fully isolated PTT control or CW keying. Unlike RIGblaster M8 and RIGblaster Plus, which use relays for PTT keying, the Nomic's opto-isolator will not safely key an older tube rig.