Path 6 of Microwave License WRDM690

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Path 6:   Chelmsford Police HQ ⇢ Four Point Bldg.

Transmit and Receive Locations

Chelmsford Police HQ

Radio ServiceMW - Microwave Public Safety Pool
Transmit LocationChelmsford Police HQ
Transmitter CallsignWRDM690
TypeTransmitter
Height to Center80.1ft / 24.4m
Antenna MakeRADIO WAVES INC.
Antenna ModelHP2-18
PolarizationV
Tilt0.5°
Gain38.6dBi
Beamwidth2.0°
Azimuth101.0°
Location TypeFixed
Location ClassTransmit Location
Address2 Olde North Rd
CityChelmsford
CountyMIDDLESEX
StateMA
Elevation (AMSL)159.1ft / 48.5m
Height of Structure85.0ft / 25.9m
Overall Height89.9ft / 27.4m
Structure TypeLTOWER - Lattice Tower
Lat / Lon42-37-12.90 N, 071-22-04.20 W

1: Chelmsford Police HQ - Four Point Bldg.

Segment Length2.217085mi / 3.568054km
Receive LocationFour Point Bldg.
TypeReceiver
Height to Center169.9ft / 51.8m
Antenna MakeRADIO WAVES INC.
Antenna ModelHP2-18
Gain38.6°
Beamwidth2.0°
Location TypeFixed
Location ClassReceive Location
Elevation (AMSL)174.9ft / 53.3m
Lat / Lon42-36-50.90 N, 071-19-30.50 W

 

Frequencies and Modulations

FrequenciesToleranceEIRPATPCEmission, Digital Mod Rate, Digital Mod TypeTransmitter MakeTransmitter Model
1: 19460.000000000.00100%65.6dBmN64M5D7W, 626000.0, 2048QA
DragonWave18EM80HFC626v01haam
2: 19460.000000000.00100%65.6dBmN64M5D7W, 563000.0, 1024QA
DragonWave18EM80HFC563v01haam
3: 19460.000000000.00100%65.6dBmN64M5D7W, 512000.0, 512QAM
DragonWave18EM80HFC512v01haam
4: 19460.000000000.00100%65.6dBmN64M5D7W, 454000.0, 256QAM
DragonWave18EM80HFC454v01haam
5: 19460.000000000.00100%65.6dBmN64M5D7W, 393000.0, 128QAM
DragonWave18EM80HFC393v01haam
6: 19460.000000000.00100%65.6dBmN64M5D7W, 333000.0, 64QAM
DragonWave18EM80HFC333v01haam
7: 19460.000000000.00100%65.6dBmN64M5D7W, 272000.0, 32QAM
DragonWave18EM80HFC272v01haam
8: 19460.000000000.00100%65.6dBmN64M5D7W, 212000.0, 16QAM
DragonWave18EM80HFC212v01haam
9: 19460.000000000.00100%65.6dBmN64M5D7W, 91000.0, QPSK
DragonWave18EM80HFC091v01haam