Specifications

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WIDEBAND OUTPUT, 1st MIXER: 45.455 MHz center frequency, output level 16 dB below receiver input.
Bandwidth equivalent to preselector, no AGC.
IF OUTPUT, POST DSP: 455 kHz center frequency, -10 dBm nominal @ 50 ohms through BNC connector
(AGC active ). Bandwidth determined by filter selection.
SIGNAL MONITOR OUTPUT, DELAYED AGC: 455 kHz, 16 kHz bandwidth (-6 dB point), - 10 dBm
nominal (+/-3 dBm) @ 50 ohms through BNC connector. AGC delayed 40 dB.
SIGNAL MONITOR OUTPUT, 2nd MIXER, NO AGC: 455 kHz, 16 kHz bandwidth, output level equal to
receiver input @ 50 ohms through BNC connector.
AGC: Fast, Medium, Slow, Programmable. Manual gain setting is provided in all four modes through RS-232
Interface, adjustable over 120dB range. Dump feature provided in all modes.
Range - 90 dB minimum Threshold - 3.0 uV typical
MODE ATTACK (dB/ms) HANG (sec) DECAY (dB/sec.)
FAST 0.8 0 1 600
MEDIUM 0.8 0 100
SLOW 0.8 0 25
PROGRAMMABLE 0.01-1.0 0.01-99.9 0.01-99.9
(SEE RX-330B AGC SPECIFICATIONS FOR COMPARISON)
CONTROL INTERFACE: All receiver functions are controllable except headphone volumes. Multi-drop RS232
network @ DB25. Baud rate programmable from 300 to 19200. 7 or 8 data bits - even, odd, or no parity.
Interface can be configured for multiple or single receiver applications.
MTBF: Not specified
POWER REQUIREMENTS: switch selectable 115/230 VAC, 48 - 440 Hz @ 30 watts nominal, Removable six
foot line cord. Front Panel ON/OFF switch provided.
2ND ORDER INTERCEPT: 75 dBm typical, 60 minimum.
AUDIO LINE OUTPUT: 0 dBm (+/-3dBm) Two 600 ohm outputs (one for each sideband in ISB mode ) to
DA-15 connector, ungrounded center tap. In all other modes, signal is mono. Terminals may be grounded or
shorted together without damage. Two additional mono outputs are provided, one AC coupled, one DC coupled.
ISB HEADPHONE OUTPUT: Front panel mounted 1/4" stereo phone jack. Other modes mono. 10 mw
maximum into 600 ohms. Front panel volume control.
MONO HEADPHONE OUTPUT: Front panel mounted 1/4" phone jack. LSB, USB or both available,
switchable by software control only. Front panel volume control.
DIGITAL DATA OUTPUT: Provides post DSP IF and audio information in both serial and parallel data
streams.
DIMENSIONS: 1 3/4"H x 19"W (1U) (44.45 X 482.6mm). Chassis depth 20" ( excluding front panel knobs,
handles and rear panel connectors ). Sized to mount in standard 19" racks. Accepts Jonathan slide type 375QD.
WEIGHT: 12 lbs. ( 5.53 kg )
ADDITIONAL FEATURES: Squelch: FM mode only Passband Tuning: +/- 2 KHz in USB, LSB and CW
Mute: for use in transmit/receive applications, mutes audio and post DSP IF output.
Ten-Tec RX-340