Ramsey Electronics STC1 Instruction Manual download pdf (Page 27)

FM25B • 27

• a. The "bandwidth" of your transmission is limited to 200 KHz, centered

on the actual operating frequency. Since 200 KHz is enough spectrum

space for several different FM stations, this is a "generous" limitation de-

signed to accommodate cruder FM devices. Properly built and adjusted,

the FM25B kit operates well within this limit. In fact, its signal should

sound no "wider" than any other FM station when listening on an ordinary

FM radio.

• b. FCC Rule 15.215(a) says: "Unless otherwise stated, there are no re-

strictions as to the types of operations permitted under these sections."

This general provision appears to leave you free to use your FM stereo

transmitter in a manner similar to operations of an FM broadcasting sta-

tion, or to use it for any other non-interfering, practical application.

• c. FCC Rule 15.5: General conditions of operation: "(b) Operation...is

subject to the conditions that no harmful interference is caused and that

interference must be accepted that may be caused by the operation of an

authorized radio station, by another intentional or unintentional radiator,

by industrial, scientific and medical equipment, or by an incidental radia-

tor. (c) The operator of a radio frequency device shall be required to

cease operating the device upon notification by a Commission representa-

tive that the device is causing harmful interference."

METERS FEET FIELD TOTAL AREA

3 10 250 314 FT

6 20 125 1256 FT

12 39 63 4800 FT

24 78 31 19113 FT

48 157 15 1.8 ACRES

96 315 7.5 7.2 ACRES

192 630 3.8 28.6 ACRES

384 1260 1.9 11.4 ACRES

768

2520

.95 458 ACRES

1536 5036 .5 1830 ACRES

DISTANCE FROM TRANSMITTER ANTENNA

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 35 36

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Ramsey Electronics STC1 Instruction Manual Page 27