Click for home page

SD-125U (UHF) Synthesized RF Data Radios

Models SD-125U1 SD-125U2
Frequency Range UHF: 400-430 MHz UHF: 440-470 MHz
Channels 1 of 16 (dip switch selectable) 1 of 16 (dip switch selectable)
Channel Spacing 30 / 25 /15 / 12.5 kHz 30 / 25 /15 / 12.5 kHz
PLL Step 5.0 / 6.25 kHz 5.0 / 6.25 kHz
Channel Spread 30 MHz 30 MHz
Antenna Impedance 50 ohms 50 ohms
Operating Voltage 9V DC to 18V DC Nominal 9V DC to 18V DC Nominal
Operating Temperature -22ºF to 140ºF (-30ºC to 60ºC) -22ºF to 140ºF (-30ºC to 60ºC)
Frequency Stability
   (-30ºC to +60ºC)		 ± 2.5 ppm ± 2.5 ppm
Dimensions (H x W x D) 4-4/8" x 2-7/16" x 1-3/16" (117x62x30 mm) 4-4/8" x 2-7/16" x 1-3/16" (117x62x30 mm)
Weight 7.7 oz. (218 g) 7.7 oz. (218 g)
FCC Identifier F3JSD125U1 F3JSD125U2
FCC Compliance Parts 22, 74, 90, 210 Parts 22, 74, 90, 210
Canada Certification Number 3772195333A 3772195333A

Transmitter (measurement procedures made per ANSI / TIA / EIA-603)

RF Output 5 Watts or 1 Watt 
(programmable per channel)		 5 Watts or 1 Watt 
(programmable per channel)
Spurious and Harmonic Emissions 60 dB 60 dB
Modulation 11K0F3E, 16K0F3E, 19K6F3D 11K0F3E, 16K0F3E, 19K6F3D
FM Hum and Noise (12.5 & 25 kHz) >40 dB @ 12.5 kHz;  >40 dB @ 25 kHz >40 dB @ 12.5 kHz;  >40 dB @ 25 kHz
Modulation Sensitivity 100 mV RMS @ 60% peak dev. 100 mV RMS @ 60% peak dev.

Receiver (measurement procedures made per ANSI / TIA / EIA-603)

Sensitivity 12 dB SINAD 0.35 µV  0.35 µV 
Selectivity >50 dB @ 12.5 kHz; >60 dB @ 25 kHz >50 dB @ 12.5 kHz; >60 dB @ 25 kHz
Intermodulation 65 dB 65 dB
Spurious Response  70 dB 70 dB
Audio Output 2.5V @  600 ohms;
    (Method @ <10% THD level) 		 2.5V @  600 ohms;
    (Method @ <10% THD level) 

 

Features / Functions

  • Synthesized frequency tuning
  • 9-Pin interface connector
  • Operates from 9V to 18V DC
  • Programmable 1 or 5 Watt transmit power
  • Operates on 1 of 16 channels; dip switch selectable
  • Programmable wide or narrow channel spacing
  • Time-out-timer function
  • Die-cast aluminum housing with mounting holes
  • Manufactured under ISO 9002 quality standards
  • FCC Certified for use in U.S.A. and its possessions 
    and IC Approved for sale in Canada

 

Phone/Fax (434) 237-8255
78 Airpark Drive, Lynchburg, Virginia 24502

Contact us!   Home Page


Back to Midland/Maxon