Specifications

Interface Protocols
Operating Characteristics
3-4 68P81095E55-E August 08, 2000
Radio Link
Frequency Bands
The iDEN system supports Radio Frequency (RF) communications in International
and United States domestic spectrum designations. These bands are regulated by
Federal and international agencies. Since the service provider is the licensed point-
of-presence on the RF spectrum, the user has the advantages of RF communication
without the need for FCC licensing.
Not all frequency ranges for RF communications are supported. Within each
supported frequency range, the iDEN system uses the 25 MHz frequency carrier
pairs. One carrier is used for transmit, the other for receive. This is summarized in
Table 2-1. Some bands cannot be combined.
Table 2-1.IDEN Radio Frequency Bands
SR 8.0 also allows the use of more than one frequency range in a network. There are
specific limitations to multiple range implementation. They are:
• All radios (BRs) in a cell site (EBTS) must have the same frequency range
• All members of neighbor list must have the same frequency range
Range
(in MHz)
Channel
Spacing
Carrier
pairs (MHz)
Link Spacing Offset
806-821 25 kHz
806-821 Uplink (from MS)
45 MHz 12 KHz
851-866 Downlink (to MS)
821-825* 25 kHz
821-825* Uplink (from MS)
45 MHz 12 KHz
866-870* Downlink (to MS)
896-901 25 kHz
896-901 Uplink (from MS)
39 Mhz 12 KHz
935-940 Downlink (to MS)
1453-1465 25 kHz
1453-1465 Uplink (from MS)
48 Mhz 12 KHz
1501-1513 Downlink (to MS)
* Requires Software Release 8.0