Omni VI Plus Model 564

Reviews

  • Reviews are also available on the ARRL Members Only Web site

Related Links

Mods, Fixes, & Additional Info

Sales Information

Omni VI+ Sales Brochure

The Omni VI+ was sold from 1997 till February 2002, with manufacturing ceasing in 2001.

Specifications

General

  • Modes: USB, LSB, FSK or AFSK, FM
  • Frequency Range: All ham bands 160 through 10 meters. Twelve 500 KHz segments with 30 KHz overshoot at upper and lower band edges.
  • Display: 7 digit to 10 Hz resolution, 0.56" LED, 2 secondary 0.3" displays for clock, memory chanhel and offset.
  • Frequency Control: LO generated with a crystal oscillator mixed with a low noise 4.97 - 5.53 MHz phase locked loop.
  • Dual VFO's with SPLIT mode.
  • Offset Tuning: +/- 9.99 KHz receive and transmit,
  • Memories: 100 duplex memories, one scratch pad memory, battery back-up (2 - 3 year life).
  • PC Interface: Serial port operation of receive and transmit. Includes two line and RS-232 interface. Runs at 1200, 2400, 4800, 9600, or 19200 baud.
  • Frequency Accuracy: +/- 50 Hz @ 25 degrees C.
  • Antenna: 50 ohm unbalanced.
  • Remote Band Switching: Selects antenna or other station accessories.
  • Power Required: 2 A receive, 20 A transmit @ 12-15 VDC.
  • Construction: 20 epoxy glass PC boards, most field replaceable. Extruded aluminum front panel, alumninum chassis, texture painted top & bottom, snap up stainless stell bail.
  • Dimensions: HWD 5.75" x 14.75" x 17" - 14.6 x 37.5 x 43.2 cm.
  • Weight: 16 lbs - 7.25 kg.

Transmitter

  • RF Output: 0 - 100 watts, ALC stablilized.
  • DC Input: Maximum 250 watts @ 14VDC. 100% duty cycle for up to 20 minutes. Continuous duty with customer supplied air cooling of rear panel heat sink.
  • Microphone Input: 200 - 50K ohms, accepts microphones with 5 mV (-62dB) output. Polarizing voltage provided for electrets.
  • Speech Processor: Adjustable compression level.
  • T/R Switching: PTT or VOX on SSB, switchable FAST or SLOW QSK on CW, delay on SLOW is adjustable.
  • Iambic Keyer: Adjustable 10 - 60 WPM, type A or B, weight adjustable from keypad.
  • CW Offset: Programmable 400 - 990 Hz, DSP generated, sidetone automatically matches offset, volume adjustable independent of AF gain control.
  • FSK Shift: 170 Hz.
  • FM Deviation: +/- 5 KHz.
  • Metering: Switchable to forward power, SWR, collector current or audio processing level on SSB.
  • SSB Generation: Balanced modulator followed by 9 MHz, 8 pole crystal ladder filter.
  • Carrier Suppression: 60 dB typical.
  • Unwanted Sideband Suppression:60 dB typical at 1.5 KHz tone.
  • Third Order Intermod:30 dB below two tone at 100 watts PEP.
  • Spurious Output: Better than 45 dB below peak power output.

Receiver

  • Sensitivity: 0.16 uV for 10 dB signal to noise ratio at 2.4 KHz bandwidth. In FM, 0.35 uV for 12 dB SINAD at 15 KHz bandwidth.
  • Selectivity: Standard 16 pole filter, 20 to 24 poles cascaded depending on options selected:
Filter Combination Typical System Bandwidth Shape Factor
9 MHz IF PBT IF @ -6 dB @ -60 dB
2.4 kHz 2.4 kHz 2.4 kHz 3.20 kHz 1.30
2.4 kHz 1.8 KHz* 1.8 KHz 2.70 KHz 1.50
2.4 kHz 500 Hz* 500 Hz 1.30 KHz 2.60
2.4 kHz 250 Hz* 250 Hz 850 Hz 3.40
1.8 kHz* 1.8 kHz* 1.7 kHz 2.4 kHz 1.40
500 Hz* 500 Hz* 350 Hz 900 Hz 2.60
250 Hz* 250 Hz* 190 Hz 550 Hz 2.90
* Optional filter is required.
  • Dynamic Range: 97 dB @ 2.4 kHz bandwidth at 20 KHz spacing, 100 dB+ with CW filters.
  • Third Order Intercept: +10 dBm
  • Noise Floor: -133 dBm @ 2.4 kHz bandwidth.
  • Phase Noise: -122 dBc @ 1 kHz, -138dBc @ 20 KHz.
  • S-Meter: Calibrated to 50 uV at S9.
  • Attenuator: -20 dB.
  • Passband Tuning: +/- 1.5 kHz.
  • I-F Frequencies: 1st I-F 9 MHz, 2nd I-F 6.3 MHz, 2nd I-F for FM 455 kHz.
  • Noise Blanker: adjustable threshold.
  • DSP Noise Reduction: auto-correlation type algorithm. Broadband noise reduction of 5 to 15 dB is typical depending on conditions.
  • Automatic DSP Notch Filter: Eliminates multiple heterodynes, notch depth automatically selected for each.
  • Manual Notch Filter: 250 Hz to 2.5 kHz, greater than 50 dB.
  • Receive Recovery Time: less than 20 ms, including split mode.
  • Squelch Sensitivity: Less than 0.6 uV
  • Image Rejection: >90 dB.
  • Audio: 1.5 watts @ 4 ohms with less than 2% distortion, built-in speaker, separate fixed output 1 mw @ 600 ohms.
  • Separate RX Antenna Input: 50 ohm phono jack, front panel selectable.