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Model No. - MES 2XXX
 
 
   

Description

MES 2000 series Band Reject Duplexers uses six Helical Resonators housed in extruded Aluminium cavities offering high 'Q' interconnected resonant cavities.

Typical Tx to Rx frequency Separation are :

2.5 MHz in the range of 60-90 MHz
4.0 MHz or more in 132-174 MHz
5.0 MHz or more in 400-520 MHz band

Notch Pass Bandwidths from 50 KHz to 1 MHz wide are custom built. Semi-rigid coaxial cables are used in UHF and higher frequency bands to offer high Tx to Rx isolation. Field tuning is accomplished with silver plated tuning screws in the rear of the unit.  The entire units is given a coat of epoxy paint  for additional protection.

Features :
  • Option of wide frequency range 60-1300 MHz in different frequency bands.
  • Compact & Rugged design for use in Mobile Environments.
  • Excellent Electrical characteristics.
  • Extreme temperature working conditions - 30 to + 60 deg C
  • Choice of connectors BNC, TNC, N, UHF

    • Application :

    These Duplexers are most commonly deployed in mobile Full Duplex Radios, Base Stations with Digital or Analog Radios, Repeaters in Systems for continuous Full 50 Watts.
 
BAND REJECT (NOTCH TYPE) VHF / UHF COMPACT MOBILE DUPLEXERS
 

Model N0.

Freq. Band
(MHz)

Min. TX/ RX Split (MHz)

Insertion Loss Max.(dB)

Isolation Min (dB)

Return Loss Min (dB)

'Z'(Ω)

Power (Watts)

Dimensions
(HxWxD) mm

MES 2066 66~77 2.5 1.2 75 18 50 50 32 x 154 x 112
MES 2077 77~88 2.5 1.2 75 18 50 50 32 x 154 x 112
MES 2132 132~144 4.0 1.2 75 18 50 50 32 x 154 x 101
MES 2148 148~160 4.0 1.2 75 18 50 50 32 x 154 x 101
MES 2150 150~166 4.0 1.2 75 18 50 50 32 x 154 x 101
MES 2152 152~174 4.0 1.2 75 18 50 50 32 x 154 x 101
MES 2157 157~174 4.0 1.2 75 18 50 50 32 x 154 x 101
MES 2250 245~260 8.0 1.2 75 18 50 50 32 x 154 x 112
MES 2400 400~420 5.0 1.2 80 18 50 50 32 x 154 x 99
MES 2450 450~470 5.0 1.2 80 18 50 50 32 x 154 x 99
MES 2470 470~500 5.0 1.3 75 18 50 50 32 x 154 x 99
MES 2500 500~520 5.0 1.2 80 18 50 50 32 x 154 x 99
MES 2820 820~870 45.0 1.2 75 18 50 50 32 x 154 x 86
MES 2850 850~940 76.0 1.2 75 18 50 50 32 x 154 x 86
MES 21200 1271~1291 18.0 1.2 75 18 50 50 32 x 154 x 115
*For 25 watts continuous or 50 watts intermittent power.  Models also available for full 50 watts continuous duty cycle.

Optional Frequency band, Tx-Rx Splits, Power Ratings are available on request as custom built.

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