OMNI VI

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, .55' LED, 2 secondary .3" displays for clock, memory channel and offset.
FREQUENCY CONTROL: LO generated with a crystal oscillator mixed with low noise 4.97 - 5.53 MHz phase locked loop.
DUAL VFOs with SPLIT mode.
RF OUTPUT: 0 - 100 watts, ALC stabilized
DC INPUT: Maximum 250 watts @ 14VDC. 1KP~ duty cycle for up to 20 minutes. Continuous duty with customer supplied air cooling of rear panel heat sink.
MICROPHONE INPUT: 200 to 50K ohms, accepts microphones with 5 mv (-67db) out- put. Polarizing voltage provided for electrets.
SPEECH PROCESSOR: Adjustable compres- sion level.
T/R SWITCHING: PlT or VOX on SSB, switch-
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 ohms unbalanced.
able 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,
REMOTE BAND SWITCHING: Selects antenna or other station accessories,
POWER REQUIRED: 2 A receive, 20 A transmit @12-15 VDC
DIMENSIONS: HWD 5.75" x 14.75" x 17" -- 14.6 x 37.5 x 43,2 cm
WEIGHT: 16 Ibs -- 7.25 kg
SWR, collector current or audio processing level on SSB.
SSB GENERATION: Balanced modulator fol- lowed by 9 MHz, 8 pole crystal ladder filter,
CARRIER SUPPRESSION: 60dB typical
UNWANTED SIDEBAND SUPPRESSION: 60 dB typical at 1.5 kHz tone.
THIRD ORDER INTERMOD: 30 dB below two tone @ 100 watts PEP.
SPURIOUS OUTPUT: Better than 45 dB below peak power output.
SENSITIVITY: .16 pV for 10 dB S+N/N @ 2.4 kHz bandwidth, In FM, .35 pV for 12 dB SINAD at 15 kHz bandwidth.
SELECTIVITY: Standard 16
FILTER COMBINATION 9 MHz IF PBT IF
2.4 kHz 2,4 kHz 2A kHz 1.8 kHz* 2.4 kHz 500 Hz* 2.4 kHz 250 Hz* 1.8 kHz* 1.8 kHz* 500 Hz* 500 Hz* 250 Hz* 250 Hz*
pole filter, 20 to 24 poles cascaded TYPICAL SYSTEM BANDWIDTH
@-6 dB @-60 dB 2.4 kHz 3.2 kHz
1.8 kHz2.7 kHz
500 Hz1.3 kHz
250 Hz850 Hz
1.7 kHz2.4 kHz
350 Hz900 Hz
190 Hz550 Hz
DYNAMIC RANGE: 97 dB @ 2A kHz band- width at 20 kHz spacing, 100 dB + with CW filters.
THIRD ORDER INTERCEPT: +10 dBm
NOISE FLOOR: -133 dBm @ 2.4 kHz band- width
PHASE NOISE: -122 dBc @ 1 kHz, -138 dBc @ 20 kHz
S-METER: Calibrated to 50 pV at S9 ATTENUATOR: -20 dB PASSBAND TUNING: +/- 1.5 kHz
I-F FREQUENCIES: lst 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 reduc- tion of 5 to 15 dB is typical depending on conditions.
AUTOMATIC DSP NOTCH FILTER: Eliminates multiple heterodynes, notch depth auto- matically selected for each.
MANUAL NOTCH FILTER: 200 Hz to 2.5 kHz, greater than 50 dB
RECEIVE RECOVERY TIME: Less than 20 ms, including split mode
SQUELCH SENSITIVITY: Less than,6 pV IMAGE REJECTION: >90 dB I-F REJECTION: >90 dB
AUDIO: 1,5 watts @ 4 ohms with less than 2% distortion, built-in speaker, separate fixed output 1 mw 0 600 ohms,
SEPARATE RX ANTENNA INPUT: 50 ohm phono jack, front panel selectable

The Model 422 Centurion uses the classic pair of 3-500Z tubes. The RF deck and power supply are combined into a single, attractively styled, desk top cabinet. The power output is rated at 1300 watts on ssb, 1000 watts cw and 650 watts using "key- down" modes. Drive required for full power ssb operation is 100 watts. The duty cvcle is 50%. QSK cw is achieved using relay switching and the proven T/R circuit from the Hercules II. This circuit also makes the Centurion ideal for fast switching diqital modes. VOX ssb is silky smooth and virtually noiseless. This versatile control system assures compatibility with all exciters with amplifier control provisions. A tube-axial fan is used for forced air cooling. Air flow is routed through the power supply as well as the upper and lower sections of the RF compartment. Air inlets and outlets are in the sides and top of the cabinet to optimize low pressure, low noise, air movement. A dedicated meter for plate current, a multi-meter for plate voltage, grid current and forward or reflected power. A full time 10 element LED bargraph instantly displays peak power output. The Centurion operates on all bands from 1.8 to 21.5 MHz. 21.5 to 29.7 MHz is enabled with the installation of an expansion board, supplied no-charge upon proof of licensed authority. A tough, easy to handle, amplifier that doesn't really mind a little abuse. The Centurion is a great value.

Band Coveraye: 1.8-2.0, 3.2-4.7, 6.5-10.3, 13.4-19.6, 17.6-21.5 MHz. 21.5-29.7 MHz after authorized modification. Input Power: 2000 watts, maximum. Power Output: 1300 watts ssb, 1000 watts cw. RTTY and SSN 650 watts, 50% duty cycle. Drive Power: 100 watts for full rated output. Efficlency: 50-65%, depending on frequency and load impedance. Input/Output Impedances: 50 Ohms, unbalanced. SWR 42:1. Distortion: -35 dB from 1 kw rf output level. Harmonlca: -50 dB typical. CW Break-In: QSK capable. Relay switching. Tube Compliment: Two 3-500Z. Power Amplifier Circult: Class AB2, grounded grid. Plate Voltage: 3100 volts, no load. 2600 volts, full load. Cooling: Forced air with full chassis air flow. Meterlng: Dedicated plate current meter. Selectable multi-meter for plate voltage, grid current, forward or reflected power. Ten element LED bargraph display for peak power indication. Front Panel Stahs Indlcators: Standby, operate, transmit. Primary Power: 220-250 Vac @ 15 A. 110-125 Vac @ 30 A, 50/60 Hz. For full power operation, 220-250 Vac is strongly recommended.

Circuit Protection: Primary line fuses. Plate transformer primary interlock and high voltage shorting bar. Front Panel Controls: Power on/off, standby/operate, control mode select (QSK - PTTNOX), plate TUNE and LOAD, band switch, meter switch. Tune and Load Controls: 6:1 vernier drives with calibrated dial skirts. Construction: Aluminum chassis, tront and rear panels, interior partitions and top and bottom covers. Size: HWS 8.25" x 15.25" x 18.5". (20.3 x 38.7 x 46.9 cm). Welght: 47 Ibs (21.3 kg).

Hercules II High tech simplicity, base or mobile. A compact, lightweight HF amplifier that offers a unique combination of virtues that can only be achieved using modern, solid state technology. Instant on, 12 - 14 Vdc operation, general coverage from 160 through 10 meters, no-tune operation and compact size. Add to that, lightning fast QSK cw, remote control, superb linearity and a low drive requirement. Outstanding!

The Hercules II is attractively styled to match our HF base station transceivers and will interface nicely with virtually all transceivers. The front panel includes an analog multi-meter for collector current, voltage, forward power and SWR. A ten element LED bargraph instantaneously displays peak power output. Band selection is either with the front panel switch or remotely via a rear panel connector. A front panel speaker is built in. The internal heat sinks are air cooled by a temperature controlled tube axial fan. Whisper quiet in ssb operation, yet enough air capacity for cool operation in the key-down modes. The Hercules II is compact, good looking and generates a signal that is within one S-unit of the mighty Titan.

Closet Kilowatt The ultimate XYL pleaser. The entire station enclosed in a handsome, color matched, cabinet measuring 19" high x 21" wide x 18" deep. With only the antenna, power and ground as external connections, the station almost even looks like "wireless." The cabinet is all aluminum with sturdy internal reinforcing members and all welded assembly. Light grey baked enamel finish. Recessed hand- holds. This idea may change the entire image of ham radio, at least in the eyes of those that see your shack.

Rack Mount l0s

RM-420 RACK MOUNT KIT For the Model 420 Hercules II.

RM-425 RACK MOUNT KIT For the Model 425 Titan.

RM-500 RACK MOUNT KIT For the Omni V or Paragon.

RM-253 RACK MOUNT KIT For the Model 253 automatic tuner.

RM-238 RACK MOUNT KIT For the Model 238 manual tuner.

RM-P0175-19 1.75" x 19" blank panel. Use,when three Ten-Tec units are mounted.

RM-P0700-19 7" x 19" blank panel. Use when Ten-Tec units are mounted.

RM-19-1750 CABINET With panel opening 19" wide x 17.5" high.

ANTENNA TUNER, MODEL 254 RATED AT 200 WATTS The Model 254 antenna tuner is a compact, lightweight design that will match a variety of balanced or unbalanced antenna feedlines to the 50 Ohm output of an HF transceiver. A unique, Ten-Tec designed, tapped inductor is wound on a 2 inch diameter powdered iron core with provisions for 47 positions on the inductor selection control. Two open airyariable capacitors match the input and output of the "T" network. This tuner is ideal for base or portable operation. It also is very effective as a mobile tuner for extending the useable frequency range of a resonant mobile antenna. An SWR metering system is incorporated with meter scales of 0-20 and 0-200 watts.

The meter can be illuminated with an external 12 - 14 Vdc source.

200 watts continuous power input. þ Silver plated 18 gauge inductor, wound on a 2 inch diameter powdered iron "donut." Forty seven position rotary tap selects inductance value. þ Two variable capacitors tune input and output. Rated at 1000 volts each. þ Frequency range 1.8 to 30 MHz. þ Powdered iron core balun is built in for balanced feeders. þ Rear panel input and outputs through S0-239 UHF connectors for coaxial lines. Terminal posts for long wire or balanced feedline type antennas and for ground. Front panel switch selects any of four antennas or the "by-pass" position.

Meter scales for 0-20 and 0-200 watts. External 12 - 14 Vdc required for meter light. Rear panel connector provided. þ Siee: HWD 3.5" x 8.75" x 8.5" (8.9 x 22 x 21.6 cm). þ Weight: 4 Ibs 3 oz (1.9 kg).

MODEL 291 PORTABLE MOBILE 200 WATT TUNER The same "T" match circuit as the Model 254. Rear panel post for connecting a long wire and a S0-239 connector for a coax fed antenna. Uses the metering in your transceiver for tuning. Small, rugged, lightweight and easy to operate. Ideal for the "knock-about" world of portable or mobile operation.

Model 238. The latest version of our tried and true "L" match design. This circuit is preferred among experts in the field because of its ability to match a broad range of impedances without the risk of self-resonance. All adjustments use calibrated scales for logging and a quick return to the same frequency and antenna. Rear panel fittings for four antennas. Three are dedicated for coax feedlines. The fourth can be coax, single wire or balanced feeders using the built-in high power balun. All are front panel selectable. Multi-meter (illuminated with external 12Vdc) displays forward power in 0 - 200 and 0 - 2000 watt scales and SWR. The Model 238 is a great way to match broad operating interests to narrow-band or non-resonant antennas.

Circuit: Modified "L" network. Maximum RF Power: 2 kw with a load impedance of 3000 Ohms. Frequency Range: 1.8 to 30 MHz.

Output Matchlng Range: At least 10:1 SWR, any phase angle. Maximum Impedance, Balanced Feedllne: 500 Ohms. Input Impedance: 50 Ohms. Input/Output Connectors: Input and four antenna coax connectors are S0-239, UHF type. Studs with wing nuts for single wire and balanced feeders. Varlable Capacitor Voltage Rating: 3.5 kV. Inductance: 28 uH silver plated roller inductor. Slze: HWD 5.5" x 13" x 11". (13.9 x 33 x 27.9 cm). Weight: 9 Ibs (4.1 kg).

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