CONTINENTAL ELECTRONICS 416 D

GENERAL DESCRIPTION

AM Broadcast Transmitter Type 416 D 10 kW SW

photo Continental Electronics 416 D

Continental's Type 416D short wave broadcast transmitter is a manually tuned, high quality unit designed for A3 operation over the frequency range from 3 to 18 MHz.

All operating controls are located on the front of the transmitter for simplicity of operation. Front panel meters monitor all important electrical parameters.

The transmitter consists of two cabinets: one cabinet contains the power supply and control circuits, the other cabinet houses the exciter and power amplifier. The exciter is a multiple channel crystal oscillator and, up to 10 stable frequencies (crystals) can be selected in the exciter.

High-gain power tetrodes are used in the linear amplifier: one 4CX350A is used for the driver stage; two 4CX15000A tetrodes operated in parallel make up the power amplifier.

Superior harmonic attenuation and impedance matching capability is achieved by using a "Pi-L" output network for the power amplifier. Transmitter door interlocks and door-operated high voltage switches protect personnel and equipment.

The transmitter is self-contained and occupies 1.9 sq. meters of floor space. The transmitter operates efficiently within an environment of -10° to 45° C; up to 95% relative humidity; at altitudes up to 1524 meters above sea level.

TECHNICAL SPECIFICATIONS
RF Output Power	10 kW Carrier; Reduced power optional 1 to 5 kW
Emission	A3
Frequency Range	3 to 18 MHz
Harmonic Attenuation	50 MW (complies with CCIR)
Output Impedance	50 Ohm, 1-5/8" coaxial
Power Source	208/230/380 Volts, three phase, 50/60 Hz., 35 KVA
Power Factor	90%
Audio Imput Impendance	150/600 Ohms, balanced or unbalanced
Audio Input Level (100% Modulation)	+10 dBm ±2 dB @ 1000 Hz
Audio Frequency Response	±1 dB 50 to 10,000 Hz @ 90% modulation
Audio Frequency Distortion	Less than 3% RMS 50-10,000 Hz. @ 90% modulation
Carrier Shift	5% Or less @ 100% modulation
Residual Carrier Noise	55 dB below 100% modulation
RF Sources	Accomodations for 10 crystals with provision for external VFO source across 50 ohms (250 milliwatts) All crystals selectable from front panel.
Tuning Time	All tuning controls are accessible from outside of the cabinet except the plug in plate tuning coil which consists of three bands; maximum time to change from one frequency to a second frequency is approximately two (2) minutes.
Cooling	Forced air
Altitude	5,000 feet (1.52 Km)
Ambient Temperature	-14°F to 113°F (-10°C to 45°C)
Dimensions	Width 72" (183 cm) Depth 41" (104 cm) Height 78" (198 cm)
Weight	2,500 Lbs (1,134 Kg) net 3,265 Lbs (1,481 Kg) gross, packed for export
Volume	290 cubic feet (8.2 cubic meters) packed for export
Specifications may change without notice

TUBE COMPLEMENT
RF stages		AF stages and modulator
Number	Type	Number	Type
2	4CX15,000A
1	4CX350A

THIS TYPE OF TRANSMITTER IS INSTALLED IN THE FOLLOWING COUNTRIES
	ITU	Country	ITU	Country
	AUT	AUSTRIA	CHL	CHILE
	ARS	SAUDI ARABIA