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NT 15 -U

NT 15-V

Phase Locked Loop Programmable

15 Watts TV UHF / VHF Transmitter

 

Ø      All standard TV systems available

Ø      Includes group delay pre-corrector

Ø      Adjustable power output from 0 to 5 W with automatic power control

Ø      Frequency Stability 2.5ppm ( up to 0.05 ppm with option 1 )

Ø      Built-in output filter

Ø      Internal temperature metering

Ø      Automatic Fold-back in case of excessive VSWR

Ø      Meets or exceeds all FCC and CCIR requirements

TECHNICAL SPECIFICATIONS

RF

Frequency range                     UHF 470 – 806 Mhz (channel 14-69)

                                                    VHF 174 – 216 Mhz (channel  7 – 13)

Output power                          0 - 15 W (adjustable)

Output power control              Automatic or manual (switch-selected)

Local oscillator                       2.5ppm (option 0.05ppm)

Intermodulation                       < -60dB (with IF-Pre-corrector)

Spurious and harmonics level   < -60dB

RF Output impedance               50 ohm

RF Output connector                 N Female45.75MHz on

Intermediate frequency            38.9 or 45.75MHz on request

IF Output level                         -15dBm

AUDIO

Input impedance                     600 /10k Ohms balanced

Nominal level                          2.2Vpp-10dB to +6dB

Pre-emphasis                          Flat, 50 ms, 75ms

Low-pass filter                        15kHz, 100kHz

Limitation circuit                     Dnom +1dB

Frequency response                < 0.5dB

Total harmonic distortion         < 0.5%

Intermodulation                       d2< -60dB, d3< -60dB,

FM S/N ratio                           > 60dB weighted  

> 60dB unweighted (ref. 50kHz)

AM S/N ratio                          > 70dB asynchronous  

> 50dB synchronous (ref. 100%)

IF                                          30.5Mhz... 41.25MHz

IF Level (on external link)    Adjustable

VIDEO

Input impedance                     75 Ohms

Nominal level                          1Vpp +6dB

Return loss                              > 30dB up to 5MHz

DC Recovery                          Clamped to back threshold

White limitation                      90%... 115% not affecting chrominance

Group delay pre-corrector       8 cells Group delay< 50ns with professional vestigial filter

Frequency response                < + 0.5dB

Differential gain                       < + 5%

Differential phase                    < +

Luminance non-linearity        < 5%

S/HUM ratio                            > 45dB weighted

S/N ratio                                > 65dB weighted; > 55dB unweighted

Black level variation             < 2% 2T K Factor< 1%

ICPM                                     < 2%

IF                                           32.7Mhz... 45.75MHz

IF Level (on external link)      -15dBm... -

LOCAL OSCILLATOR

Frequency                              500MHz... 900MHz  split between band I, III, IV/V

Offset                                     +32kHz max.

Frequency stability                  +2.5ppm (-5°C... +45°C)

External reference                   5MHz

Output level (on mixer)             > 60dB weighted

FM S/N CCIR ratio                      > 60dB unweighted (ref. 50kHz)

GENERAL

Power supply                           110 - 230Vac, + 10%, 50/60Hz

Cabinet                                    Rack 19"-2U

Dimensions                             19” x 3” x 16” (482x88x400mm)

Weight                                     20 Lbs (10 Kg.)

Ambient temperature           -5° to +45°C

Humidity                                  20% - 90%

E-mail: info@NicomUsa.com