The Collins 830D-1B FM Transmitter is a combination of excellent engineering standards, and time-proven performance. This self-contained 1000-watt unit offers reliability, efficiency, and Iow cost of operation to any broadcaster requiring Iow power and minimum maintenance attention.
To help achieve these requirements, the 830D-1B uses fewer parts to facilitate compactness and ready access. Ali components including the popular 310Z Exciter and harmonie filter are contained in one attractive cabinet.
Starting the transmitter is a fully automatic operation that allows single button initiation, with automatic piąte start after an appropriate time for tubę warm-up. Silicon rectifiers in the power supply generate a minimum of heat. and filament voltage regulation assures long tubę life.
Vertical panel construction eliminates hidden components and allows rapid troubleshooting. A grounded shortmg stick is located inside the transmitter for safety in maintenance. As a standard Collins procedurę, the transmitter is tested completely on the customer's frequency for fast. trouble-free installation.
The same 310Z Exciter that drives the Collins 45-kW transmitter drives the 830D-1B. Completely solid State, the 310Z is truły an advanced design, and offers as an option, plug in cards that give stereo and SCA capability.
Output Power..........1 kW
Output Impedance .......50 ohms, vswr 2:1 maximum
Frequency Rangę........88 to 108 MHz
Frequency Stability.......±1000 Hz
Modulation Capability .....±100 k Hz
Audio Input Level .......10 dBm ±2 dB
Audio Frequency Response . . . Complies with FCC standard pre-
emphasis curve
Audio Frepuency Oistortion . . Monaural: 1% PTR (0.5% typical)
50 to 15,000 Hz
Stereo: Less than 1% 50 to 15,000 Hz
Stereo Separation . .
Harmonie Attenuation
FM Noise Level . . .
AM Noise Level . . . Altitude.......
Power Source ....
35 dB minimum, 50 to 15,000 Hz (39 dB typical)
■80 dB minimum, 50 to 15,000 Hz (39 dB typical)
65 dB below 100% modulation (±75 kHz)
■55 dB rms
Operating 7500 ft at 30°C Nonoperating 10,000 ft 200 to 250 volt$ ac 50/60 Hz 1-phase. Available taps on trans-formers are for 200. 210, 220, 230, 240. and 250 volts
Permissibte Linę Voltage
Variation............iS%.
Power Requirements......Nominał 1 kW output requires 2.3
kVA at 0.90 power factor
Si ze...............76" (193.04 cm) H; 38" (96.52
Front view, cauity open cm) W; 27" (68.58 cm) 0.
Weight.............. 776 Ibs (351.99 kg)
830D-1B FM Transmitter 8300-1B...........FM Transmitter, 1 kW
1-11