background image

SPECIFICATIONS

 

LG 226

RF Output

 

Frequency Range:

 

30 MHz to 950 MHz

 

Frequency Resolution:

 50 kHz

 

Frequency Accuracy:

 10 ppm

 

Frequency Switching Time:

 Within 100 ms

 

Frequency Setting

 

 Channel 

Mode:

 

Setting with a built-in channel table

 

 Frequency 

Mode:

  Setting an arbitrary frequency

 

Output Impedance:

 75 

Ω

 

Output Connector:

 BNC

 

Output Level Range:

  -80 to 0 dBm (0 dBm max.)

 

Level Resolution:

 1 

dB

 

Output Level Accuracy:

 ±2 dB (0 to -9 dBm)

         

±3 dB (-10 to -80 dBm)

 

Spurious:

 

Within -30 dBc (Harmonics)

     

Within 

-40 

dBc 

(Non-Harmonics)

Video Signal

 

Modulation System:

  Amplitude modulation of the VSB 

(vestigial sideband) system according 
to a broadcast system

 

Modulation 

 

  At the time of built-in channel table setting:

     

87.5 

%±3 

(Negative 

modulation) 

     

97.0 

%±3 

(Positive 

modulation) 

 

  At the time of arbitrary setting:

         

0 to 100 % (in 0.5 % steps)

 

Modulation Frequency Band 

 

  At the time of built-in channel table setting:

     

4.2 

MHz/5.0 

MHz/6.0 

MHz 

(Depends 

on a broadcast system)

 

  At the time of arbitrary setting:

     

4.2 

MHz/5.0 

MHz/6.0 

MHz

 

Modulation Frequency Flatness:

 ±1  dB

 

Input Impedance:

 75 

Ω

 

Input Connector:

 BNC

 

Reference Input Level:

 1  Vp-p

 

Spectrum Polarity:

 

Positive (upper sound wave)

 

Built-in Pattern:

 

Full-field Color Bar (NTSC/PAL)

         

Line sweep (at 100 % modulation: 4.2 
MHz) (NTSC/PAL)

Sound Signal 

 

Carrier Frequency

 

  At the time of built-in channel table setting:

     

4.5 

MHz/5.5 

MHz/6.0 

MHz/6.5 

MHz 

(Depends on a broadcast system)

 

  At the time of arbitrary setting:

         

4.5 to 6.5 MHz (in 0.5 MHz steps)

 

Video Sound Ratio 

 

  At the time of built-in channel table setting:

         

-6 dB/-7 dB/-10 dB (Depends on a 
broadcast system)

 

  At the time of arbitrary setting:

         

-30 to 0 dB (in 1 dB steps)

 

Modulation Types:

 

FM/AM (L System) (Depends on a 
broadcast system at the time of built-
in channel table setting)

 

Frequency Deviation 

 

  At the time of a built-in channel table Setting:

         

15 kHz/30 kHz(equivalent to 60 % 
of the maximum deviation for each 
broadcasting system)

 

  At the time of an arbitrary setting:

         

0 to 100 kHz (in 1 kHz steps)

 

Modulation (AM) 

 

  At the time of built-in channel table Setting:

         

60 %

 

  At the time of arbitrary setting:

         

0 to 60 % (in 1 % steps)

 

Pre-Emphasis 

 

  At the time of built-in channel table setting:

         

75 μs/50 μs (Depends on a broadcast 
system)

 

  At the time of arbitrary setting:

     

75 

μs/50 

μs/OFF

 

Modulation Frequency Response:

 40 Hz to 100 kHz

 

Modulation Frequency Flatness:

 ±1 dB

 

Reference Input Level:

 0 dBm (0.775 Vrms)

 

Input Impedance:

 600 

Ω

 

Input Connector:

 BNC

 

Built-in Sound Signal:

 Sine wave 400 Hz/1 kHz

* The modulation system cannot be selected at the time of 

channel mode.

Preset

 

Function:

 

Up to 100 sets of panel settings can 
be stored and recalled.

GPIB

 

Function:

 

Enables the key operations of the 
front panel except a power switch.

 

Connector:

 

24-pin rectangular connector 

     

57LE-20240-7700D35G 

(DDK) 

or 

equivalent

 

Corresponding Standard:

  ANSI/IEEE Std 488.1-1987

REMOTE

 

Function:

 

Enables the INC, DEC, and RESET 
operations of the preset memory.

 

Connector:

 

14-pin rectangular connector

     

57LE-4014-7700 

(DDK) 

or 

equivalent

 

Input Level:

 TTL

RS232C

 

Function:

 

Controls the Video signal generator 
LT 450, Selects the INC, DEC, or RE-
SET/video format which are related to 
the PRESET-MEMORY.

 

Connector:

 

9-pin D-Sub (M)

 

Signal Format:

 

Bidirectional serial data

Environmental Conditions

 

Operating Temperature:

 0 to 40 °C

 

Operating Humidity:

  ≤85 %RH (without condensation)

 

Operating Environment:

 Indoor  use

 

Operating Altitude:

  Up to 2,000 m

 

Overvoltage Category:

 II

 

Pollution Degree:

 

2

Power Requirements

 

Voltage:

 

AC90 to 250 V

 

Power Frequency:

 50/60 

Hz

 

Power Consumption:

 35 W max.

Dimensions

         

426(W) X 88(H) X 400(D) mm 

     

(excluding 

projections)

Weight

     

5.6 

kg

Accessories

     

AC 

power 

cord 

................................. 1

     

Instruction 

manual 

........................... 1

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX 781.665.0780 - TestEquipmentDepot.com 

Отзывы: