This is an old revision of the document!


Pegasus Model 550

FrontFront Close-upRearRear Close-upSideSide

Description

PC controlled IF-DSP transceiver covering all 9 HF ham bands plus general coveral receive. 100 watts output at 100% duty cycle.

Reviews

Mods, Fixes, and Additional Info

Sales Information

Specifications

General

  • MODES: LSB, USB, CW, RTTY (AFSK), FM, AM receive only
  • FREQUENCY RANGE: Receive - 100 kHz to 30 MHz. Transmit - all ham bands 160-10 meters
  • DISPLAY: provided by customer's PC
  • DUAL VFOs with SPLIT mode.
  • OFFSET TUNING: +/- 10 kHz receive and transmit
  • MEMORIES: limited only by available RAM in PC, virtually any PC will store 1000s of memories
  • FREQUENCY ACCURACY: +/-90 Hz at 25 degrees C at 30 MHz for 1 yr
  • ANTENNA: 50 ohms unbalanced.
  • POWER REQUIRED: 1A receive, 20A transmit @ 12-14 VDC
  • CONSTRUCTION: 5 epoxy glass PC boards, molded front panel, aluminum chassis, texture painted steel cover
  • DIMENSIONS: HWD 10.75" x 5.125" x 11.5" / 27.3 x 13 x 29.2 cm
  • WEIGHT: 9 lbs - 4.1 kg

Transmitter

  • RF OUTPUT: 5-100 watts, ALC stabilized.
  • DC INPUT: maximum 250 watts @ 14 VDC. 100% 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. 4 pin, front panel connector accepts microphones with 5 mv (-67 dB) output. Polarizing voltage provided for electrets.
  • T/R SWITCHING: PTT or VOX on SSB, QSK on CW.
  • CW OFFSET: Programmable 400 to 900 Hz, DSP generated. Sidetone automatically matches offset, volume adjustable independent of AF GAIN control.
  • FM DEVIATION: +/- 5 kHz.
  • METERING: Switchable to forward power, reflected power or SWR.
  • SSB GENERATION: DSP generated
  • CARRIER SUPPRESSION: > 50 dB
  • UNWANTED SIDEBAND SUPPRESSION: > 60 dB at 1.5 kHz tone
  • THIRD ORDER INTERMOD: 25 dB below two tone @ 100 watts PEP
  • SPURIOUS OUTPUT: Better than 40 dB below peak power output

Receiver

  • SENSITIVITY: .35uV typical for 10 dB S+N/N @ 3 kHz bandwidth, SSB mode.
  • SELECTIVITY: 34 filters built-in; 300 Hz, 330 Hz, 375-750 Hz in 75 Hz increments, 900-3000 Hz in 150 Hz increments, 3.3-6.0 kHz in 300 Hz increments, 8.0 kHz. All 1.5:1 shape factor or better.
  • DYNAMIC RANGE: 90 dB @ 3 kHz bandwidth at 50 kHz spacing
  • THIRD ORDER INTERCEPT: +10 dBm
  • NOISE FLOOR: -126 dBm @ 3 kHz bandwidth
  • S-METER: Calibrated to 50 uv at S9
  • ATTENUATOR: -20 dB
  • PASSBAND TUNING: +/- 2 kHz
  • I-F FREQUENCIES: 1st I-F 45 MHz, 2nd I-F 455 kHz, 3rd I-F 12 kHz
  • I-F REJECTION: > 60 dB typical
  • IMAGE REJECTION: > 60 dB typical
  • RECEIVE RECOVERY TIME: less than 20ms, including split mode
  • AUDIO: speaker - 2 watt @ 4 ohms, line out - > 1 V p-p into 600 ohms

QR Code
QR Code 550 (generated for current page)