Note: Coordinates are referenced to North American Datum 1983 (NAD83).
Site name | North latitude | West longitude |
Mount Constitution | 48° 40' 47.4" | 122° 50' 28.7" |
Lyman Mountain | 48° 35' 41.4" | 122° 09' 39.6" |
Cultus Mountain | 48° 25' 30.4" | 122° 08' 58.5" |
Gunsite Ridge | 48° 03' 22.4" | 121° 51' 41.5" |
Gold Mountain | 47° 32' 51.3" | 122° 46' 56.5" |
Buck Mountain | 47° 47' 05.3" | 122° 59' 34.6" |
Cougar Mountain | 47° 32' 39.4" | 122° 06' 34.4" |
Squak Mountain | 47° 30' 14.4" | 122° 03' 34.4" |
Tiger Mountain | 47° 30' 13.4" | 121° 58' 32.4" |
Devils Mountain | 48° 21' 52.4" | 122° 16' 06.6" |
McDonald Mountain | 47° 20' 11.3" | 122° 51' 30.5" |
Maynard Hill | 48° 00' 58.3" | 122° 55' 35.6" |
North Mountain | 47° 19' 07.3" | 123° 20' 48.6" |
Green Mountain | 47° 33' 40.3" | 122° 48' 31.5" |
Capitol Peak | 46° 58' 21.3" | 123° 08' 21.5" |
Rattlesnake Mountain | 47° 28' 09.4" | 121° 49' 17.4" |
Three Sisters Mountain | 47° 07' 19.4" | 121° 53' 34.4" |
Grass Mountain | 47° 12' 14.1" | 121° 47' 42.4" |
Spar Pole Hill | 47° 02' 51.4" | 122° 08' 39.4" |
Short-Spacing Separation Table
Proposed station ERP (watts)/DHAAT(m)3 | Distance between stations (km)1 2 | ||||||
Existing station DHAAT (meters)3 | |||||||
305 | 215 | 150 | 108 | 75 | 54 | 37 | |
1000/305 | 113 | 113 | 113 | 113 | 113 | 113 | 113 |
1000/215 | 113 | 113 | 113 | 113 | 113 | 113 | 110 |
1000/150 | 113 | 113 | 113 | 113 | 112 | 108 | 103 |
1000/108 | 113 | 113 | 113 | 110 | 107 | 103 | 98 |
1000/75 | 113 | 112 | 108 | 103 | 100 | 96 | 91 |
1000/54 | 113 | 109 | 105 | 100 | 97 | 93 | 88 |
1000/37 | 109 | 104 | 100 | 95 | 92 | 88 | 88 |
500/305 | 113 | 113 | 113 | 113 | 113 | 113 | 110 |
500/215 | 113 | 113 | 113 | 112 | 109 | 105 | 100 |
500/150 | 113 | 112 | 108 | 103 | 100 | 96 | 91 |
500/108 | 112 | 107 | 103 | 98 | 95 | 91 | 88 |
500/75 | 107 | 102 | 98 | 93 | 90 | 88 | 88 |
500/54 | 103 | 98 | 94 | 89 | 88 | 88 | 88 |
500/37 | 99 | 94 | 90 | 88 | 88 | 88 | 88 |
250/305 | 113 | 113 | 113 | 112 | 109 | 105 | 100 |
250/215 | 113 | 113 | 107 | 102 | 99 | 95 | 90 |
250/150 | 109 | 104 | 100 | 95 | 92 | 88 | 88 |
250/108 | 105 | 100 | 96 | 91 | 88 | 88 | 88 |
250/75 | 99 | 94 | 90 | 88 | 88 | 88 | 88 |
250/54 | 95 | 90 | 88 | 88 | 88 | 88 | 88 |
250/37 | 91 | 88 | 88 | 88 | 88 | 88 | 88 |
125/305 | 113 | 111 | 107 | 102 | 99 | 95 | 90 |
125/215 | 108 | 103 | 99 | 94 | 91 | 88 | 88 |
125/150 | 103 | 98 | 94 | 89 | 88 | 88 | 88 |
125/108 | 98 | 93 | 89 | 88 | 88 | 88 | 88 |
125/75 | 93 | 88 | 88 | 88 | 88 | 88 | 88 |
125/54 | 88 | 88 | 88 | 88 | 88 | 88 | 88 |
125/37 | 88 | 88 | 88 | 88 | 88 | 88 | 88 |
62/305 | 108 | 103 | 99 | 94 | 91 | 88 | 88 |
62/215 | 103 | 98 | 94 | 89 | 88 | 88 | 88 |
62/150 | 97 | 92 | 88 | 88 | 88 | 88 | 88 |
62/108 | 92 | 88 | 88 | 88 | 88 | 88 | 88 |
62/75 | 88 | 88 | 88 | 88 | 88 | 88 | 88 |
62/54 | 88 | 88 | 88 | 88 | 88 | 88 | 88 |
62/37 | 88 | 88 | 88 | 88 | 88 | 88 | 88 |
1 Separations for stations on Santiago Peak, Sierra Peak, Mount Lukens, and Mount Wilson (CA) and the locations in the State of Washington listed in paragraph (b)(3) of this section are 56 km (35 mi) greater than those listed in the table above. In the event of conflict between this table and the table of additional California high elevation sites shown in paragraph (b)(2) of this section, the latter will apply.
2 Distances shown are derived from the R-6602 curves and are based upon a non-overlap of the 22 dBu (F50,10) interference contour of the proposed station with the 40 dBu (F50,50) contour of the existing station(s). No consideration is given to the 40 dBu service contour of the proposed station and the 22 dBu contour of the existing station(s). The minimum separation of stations will be 88 km (55 mi).
3 All existing stations are assumed to operate with 1000 watts ERP. When the ERP and/or DHAAT of a proposed station or the DHAAT of an existing station is not indicated in the table, the next higher value(s) must be used.
47 C.F.R. §90.621
1. For FEDERAL REGISTER citations affecting § 90.621, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.
2. At 63 FR 68968, Dec. 14, 1998, § 90.621 was amended by adding a note before Table 1 and revising the first two columns of Table 1. However, Table 1 of § 90.621 as it appears in the October 1, 1998 revision of title 47 parts 80-end is an illustration and cannot be edited for amendments. For the convenience of the user, the revised text is set forth as follows: