5314027957

AM ANI) FM TOWERS

Collins furnishes a wide selection of both sełf-supporting and guyed antenna towers custom designed to meet the requirements of any AM or FM installation.

Towers are normally supplied with a protective coating of rust inhibitive paint prior to shipment, although they can be supplied with a galvanized finrsh at a slightly higher price. Galvanized is recommended in locations where the tower will be subjected to salt water spray, extreme humidity or other corrosive conditions. The finish coat is normally supplied by the tower erector and is in keeping with FAA requirement.

Ali hardware, fittings, guy insulators, anchor Steel and base insulator (where required) are supplied with each tower. The applicable FCC (FAA) lighting kit and wiring are also provided.

COPPER GROUND WIRK

Barę #10 copper ground wire is used for ground radials. Wire attaches to mesh ground screen.

Weight: 31.8 ft per Ib Part No. 421 1010 000

IIUCHEY ANI) PHILLIPS RING TRANSFORMER

For use wherever 60-Hz energy must be transferred across two points with very Iow capacitance or at very high voltages. Provides a highly reliable, Iow capacity means of supplying power across base insulator or insulated radio towers employed as radiators. Theii relatively large spacing and Iow capacity between windings make these isolation transformers desirable for use in directional arrays, and especially with radiators that develop very high voltages across the base insulators. No tuning or rf adjustments are necessary. Available in load capacities of 1750 watts (Model Tl 2017) and 3500 watts (Model Tl 2035) 115/230 volts. Mounting hardware not supplied.

Part No. 097 6920 00 (TypeTI2017)

Part No. 099 0365 00 (Type Tl 2035)

COPPER GROUND STRAP

This fine quality copper ground strap is available in four sizes 4 in. by 0.032 in. (4.02 ft per Ib.), and 4 in. by 0.032 in. (2.01 ft per Ib.).

Part No. 097 1445 00 (2-in. strap)

Part No. 097 1144 00C (3-in. strap)

Part No. 099 2689 00 (6-in. strap)

Part No. 097 0811 00 (4-in. strap)

MESH GROUND SCREEN

Expanded copper mesh ground screen is for use beneath base of antenna tower to increase soil conductivity. Available in 8* by 24-ft sheets.

Part No. 013 0107 00

FISIIER PIERCE 63305-1)11 BEACON LIGIIT CONTROL

Designed to mount in a standard commercial meter socket. The 63305-DB will automatically control broadcast tower lights directly or with auxiliary contactors. Adjustable potentiometer allows adjustment for operation from 0 to 50 footcandles.

Power Requirements: 105 to 130 volts, 50/60 Hz

Built in Load Contactor: Single Pole, Single Throw,

Double Break, 30A

Load Rating: 3000 watts

Part No. 124 0032 559

COLLINS 172G-I DUMMY ANTENNA

This air-cooled unit provides a load to dissipate transmitter output for off-the-air testing. Consisting of eight ferrule type, non-inductive resistors, with insulated end brackets and elips, it may be mourrted on the transmitter or adjacent wali. The 172G-1 has an impedance of 52 ohms.

Power Rating: 1 kW

Size: Approx. 6 in. W, 9 in. H, 12*1/2 in. D (15.24 cm W, 22.86 cm H. 31.75 cm D)

Weight: 5 Ib (2.27 kg)

Part No. 522 1410 004

STATES WG-50 DUMMY ANTENNA

An air-cooled 50-ohm rf load that will dissipate the output of the Collins 820E/F AM transmitters.

Part No. 124 0061 794 (WG-50) 7.5 kw

Part No. 124 0061 801 (Catalog No. 338-32J) 15 kw

IC-I ISOLATION COIL

The IC-1 Isolation Coil provides isolation for the phase sampling loop linę in directional arrays, presenting a high impedance for the linę across the base insulator of the AM tower. The unit consists of a phenolic coil form wound with approximately 37 turns of RG8/U or similar solid dielectric linę.

Inductance: Approx. 180 microhenry Size: 18" L. 10" dia. (46 cm L. 25.4 cm dia.).

Weight: 6 Ib (2.7 kg).

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