Transcom

SPECIFICATIONS

General

Frequency range: 470-806/860 MHz

(IOT dependent)

RF load impedance: 50 or 75!

Visual Performance

Frequency stability: 250 Hz

Video input level: 0.5 to 2.0V

Modulation capability: 100%

Sideband response:

-3.58 MHz: -42 dB or better

-1.25 MHz: -20 dB or better

 -0.5 MHz to Fv: +0.5 to -1.0 dB

 Fv to +4.0 MHz: -3.58 MHz

 +4.0 to +4.18 MHz: +0.5 to -2.0 dB

 4.75 MHz & above: -40 dB or better

Response v. APL: 0.75 dB

Differential gain: 0.5 dB

Differential phase: 3

LF linearity: 1.0 dB

ICPM: 1.5

Envelope delay:

0.2 to 2.0 MHz: 40 ns

3.58 MHz: 30 ns

 4.18 MHz: 60 ns

K factors:

 2T: 2%

12.5T: 3%

Spurious & harmonics: -60 dB

In-band IM products: -60 dB

Regulation of output: 3%

Variation of output: 2%

Signal to noise: -55 dB RMS (unweighted)

Aural Performance

Power output: 10% visual (typ.)

Intercarrier freq. stability: 15 Hz

Monaural input: 600!, balanced

Broadband input (2): 75 Ohm, unbalanced

Modulation capability: 120 kHz

Monaural performance: (25 kHz)

 Input level: 0 to +20 dBm

 Frequency response 0.5 dB, 50 Hz to 15 kHz

 Pre-emphasis: 75 μs or flat

 Total harmonic distortion: 0.5% after de-emphasis

 FM noise: -60 dB RMS

 AM noise: -55 dB RMS

 AM synchronous noise: -40 dB

Composite stereo performance (75 kHz):

 Input level: 1 volt nominal

 Frequency response: 0.5dB, 50 Hz to 120 kHz

 FM noise: -70 dB

 THD: 0.5%

 IMD: 0.5%

 Stereo separation (equivalent):

-40 dB or better

 Crosstalk (stereo to main or SAP):

-45 dB or better

 BTSC pilot protection: -46 dB or better

Environmental Conditions

Ambient temperature: 0 to 45C (24C 10C recommended)

Ambient humidity: 0 to 90%, noncondensing

Altitude: sea level to 2,000m (consult factory for higher altitudes)

Physical Size

HPA cabinet (qty. 1):  Width 69 in. (175.3 cm)  Depth 60 in. (152.4 cm)  Height 76 in. (193 cm)

 Weight 2,200 lbs. (1,000 kg)

Power supply (qty. 1): Width 52 in. (132 cm)  Depth 62 in. (157.5 cm)  Height 65 in. (165.1 cm)

 Weight 5,000 lbs. (2,268 kg)

Exciter/control cabinet (qty. 1):

 Width 33 in. (84 cm)

 Depth 40 in. (101.6 cm)

 Height 76 in. (193 cm)

 Weight 900 lbs. (408 kg)

System “M” electrical requirements:

480V/3 phase/60 Hz