MAGNUM257HP 10 Meter Mobile Ham Radio Transceiver [MAGNUM257HP]

by RF Limited

Magnum257HP Features:

• NOW WITH BLUE BACKGROUND LIGHTING 
• Variable Power - In All Modes
• FM / USB / LSB / AM
• 1 kHz / 10 kHz / 100 kHz Steps
• 5 Digit Frequency Display
• ECM Microphone with Up and Down Frequency Controls
• 5 Memory Channels - Saves Both Frequency and Mode
• Back Lit LCD Display and Front Panel Controls
• Digital S/RF Meter on LCD
• RF Gain and Microphone Gain Controls
• +/- 1 kHz Clarifier
• Noise Blanker and Automatic Noise Limiter
• Frequency Scan
• Last Channel Recall - Returns to Last Operated Frequency and Mode
• Split Frequency Offset for Repeater Use
• Receive Audio Tone Control
• MARS / CAP Compatible (Permits Required)
• 1 Year Warranty
• Extended Service Contracts Available From the Manufacturer

General Specifiactions

• Frequency Coverage : 28.000 to 29.699 MHz
• Antenna Impedance : 50 ohm, unbalanced
• Frequency Control : Digital phase-Lock Loop (PLL) Synthesizer
• Frequency Accuracy : Better than +10 ppm from 0 - 40 C after 15 minute warm up
• Power Requirement : 12-13.8 V DC, negative ground
• Dimensions (W x H x D) : 6 x 2 x 9.5 inches
• Weight : 2.9 LBS

Transmitter Specifications

• Power Output : SSB: 65~75 watts PEP
• Power Output : AM: 1~15 watts carrier/80 Watts PEP
• Power Output : FM: 1 watt minimum 15 watt maximum
• Tuning Steps : 1kHz / 10kHz / 100 kHz
• Driver Stage: 1 ERF 2030 MOSFET driving 1 ERF 2030  Final stage: 1 ERF 7530 MOSFET
• Spurious Emissions : More than 50dB below peak output power
• Carrier Suppression : More than 40 dB below peak output power
• Unwanted Sideband : More than 50 dB below peak output (1 kHz tone)
• FM Deviation : +/- kHz maximum
• Audio Response : More than 30dB below peak output
• Frequency Response : 400 to 2800 Hz
• Microphone Impedance : ECM, 600 to 1K ohms 

• Circuit Type : Dual-Conversion Superheterodyne
• Intermediate Frequences : 1st IF / SSB IF 10.695Mhz
• Intermediate Frequences : 2nd IF 455 kHz
• Sensitivity : SSB 0.25 uV at 10 dB S + N/N
• Sensitivity : AM 1.0 uV at 10 dB S + N/N
• Sensitivity :  FM 0.3uV at 12 dB SINAD
• Selectivity : SSB 4.2 kHz (-6dB) / 8.5 kHz (-60 dB)
• Selectivity : AM / FM 6.0 kHz (-6dB) / 18 kHz (-60dB)
• Clarifier Range : 1.5 kHz
• Adjacent Channel Rejection : Better than 70 dB
• IF Rejection : Better than 80 dB for all frequencies
• Frequency Response : 250 to 3000 Hz
• Audio Output Power : 2 watts minimum at 10% THD with an 8 ohm load
• Audio Output Impedance : 8 ohms
  

PLEASE  NOTE
WE DO NOT ACCEPT ANY RETURNS ON 10-METER HAM RADIO PRODUCTS.
ANY AND ALL WARRANTY ISSUES MUST GO DIRECTLY TO THE MANUFACTURER.
PLEASE BE SURE THAT YOU READ OUR RETURNS POLICY BEFORE YOU ORDER.