Operations and Maintenance Manual

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MPR 4.1 Reader Appendix
Confidential UM UM360479-100 Revision: Draft B4 Page 156 of 246
© Kapsch TrafficCom Canada Inc. 2022
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Appendix B FCC Approved Port Frequencies and
Selection
The frequency plan used at a toll site is dependent on the antenna spacing rules, local RF interferers
and the approved FCC (or other applicable regulatory body) frequencies.
Reader FCC ID JQU 802890 are approved for 30W ERP radiated power by the FCC for the following
protocols.
JQU802890 – FCC Approved Frequencies
FDM Protocols
902-904 MHz Sub-Band
909.75-921.75 MHz Sub-Band
ATA
902.5-903.5
910-921.5
6B
903
910.5-920.5
SeGo
n/a
911-920
6C
903
910.5-920.5
Title 21
n/a
915.75
TDM
n/a
915.75
In addition the following rules apply for FDM protocols:
The same Port frequency should not be used on adjacent lanes, including straddle and shoulder lanes
(recommended at least 24 ft separation between in-line antennas and 21 ft. separation between staggered
arrangement antennas).
The frequency spacing used shall be at least 2.5 MHz between adjacent antennas (i.e. in-line or
straddle antennas).
For 6C read in ORT an in-line configuration can be used. For all other FDM protocols in ORT and for
6C write in ORT a staggered configuration should be used.
For the in-line and staggered antenna configurations outlined in, page 86, this means that a 4 or more
frequency plan (i.e. can repeat every 5
th
antenna) must be used for in-line configurations and a 3 or
more frequency plan (i.e. can repeat every 4
th
antenna) must be used for staggered configurations.
For example within the FCC limits and a staggered ORT antenna configuration a suitable selection can
be made that covers all protocols with the following ranges
F1
F2 (+2.5 MHz)
F3 (+5.0 MHz)
911.5 to 914.5
914 to 917
916.5 to 919.5