73-56-11 Series

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73-56-11

73-56-11 Series, 380-420 MHz, T-Pass® Combiners
Broadband architecture of the T-Pass® circuit and coaxial cavities mitigates equipment obsolescence and facilitates ease of system reconfiguration when re-banding is necessary. Each System configured for optimum performance. Ideal for applications with minimal guard band between transmit and receive frequencies.

Models

  1. -nn in model number represents the number of channels.
  2. These specifications are applicable to 380-420 MHz models.
  3. Models available with 5W/60W loads. Same specifications as 100W models, except load power.
  4. -MC option reduces maximum number of channels to twelve 6.625-inch channels per rack.
  5. -LR systems are tuned and tested on customer frequencies, then disassembled for shipping.
  6. Rack depth with cavity tuning rods at maximum frequency. Rod travel is approximately 5.1" (130 mm).

Downloads:

Datasheet

 

Expansion Channel Specifications

ModelFreq. Range (MHz)Isolator PowerIsolator LoadsExpansion Channel Model NumberStarter Channel Model Number
73-56A-11-xx380-400150 WSee note 3 above21-56A-11-xx-T21-56A-11-xx-TS
73-56B-11-xx400-420150 WSee note 3 above21-56B-11-xx-T21-56B-11-xx-TS

Note: "xx" in model number describes isolator and load configuration: 2B = 5 W/100 W

Typical Insertion Loss and Maximum Input Power a

Tx-Tx Separation Cavity LossMaximum Power
1 MHz-1.5 dB150 W
250 kHz-1.5 dB150 W
150 kHz-2 dB 125 W

Loss (dB) vs. No. of channels

Tx-Tx Separation 24812
1 MHz-2.4-2.6-2.9-3.1
250 kHz-2.9-3.8-4.4-4.7
150 kHz-3.6-4.8-5.6-6.0

Product Specifications 
Item No73-56-11 Series
Item Name380-420 MHz, T-Pass Combiner, 6.625" Cavity
Frequency Range380-420 MHz
Cavity Type and Diameter3/4-wave, 6.625” (168 mm)
Maximum Continuous Transmit Power125 W
Isolator Load Pwr Continuous5 W/100 W [Note 3]
Min Tx-Tx Separation at Cavity Loss150 kHz @ -2.0 dB
Typical Tx-Tx Isolation at Min Separation80 dB
Typical Antenna - Tx Isolation70 dB
Typical Tx Noise SuppressionDepends on cavity loss
Impedance Ω50
Maximum Input Return Loss - VSWR-20 dB (1.22:1)
Temperature Range-30 to +60 °C
Connectors - Input and AntennaN
MountingPeg Rack®
Mounting OptionsMC: 19” rackmount adapter plates, 17.5” high
LR: System supplied without Peg Rack® [Notes 4,5]
Maximum Channels - Rack15 [Note 4]
Dimensions65.25” x 24” x 37.5” (H x W x D) [Note 6]
(1659 x 610 x 953 mm)
Weight - Basic Single Channel37 lbs. (16.7 kg)
Weight - Expansion Channel Assy16 lbs. (7.2 kg)