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VT50/OM Rev-A 

 

2

1.3  

Specifications 

 

RF Characteristics 

Frequency Range (Specify): 

UHF 

340.00 - 399.90 MHz   

100 kHz Channels 

(Other Ranges Available) 

L-Band 

1710.00 – 1850.00 MHz  

250 kHz Channels 

 

S-Band 

2450.00 - 2483.50 MHz  

250 kHz Channels 

 

C-Band 

4400.00 – 4999.75 MHz  

250 kHz Channels 

Frequency Selection (Specify): 

Fixed or Channelized, Full Band, Slide Switch Selectable 

Frequency Stability: 

±0.002% Over -20°C to +50°C 

Output Power (Specify): 

UHF 

2 W, 5 W, 10 W, or 2/5/10 W Selectable (Slide Switch) 

 

L/S/C 

2 W, 5 W, or 2/5 W Selectable (Slide Switch) 

Output Impedance: 

50 

 Nominal, VSWR 1.5:1 Maximum 

Output Protection: 

UHF 

Power Fold Back – Open/Short Indefinitely 

 

L/S/C 

Internal Isolator - Open/Short Indefinitely 

Spurious Output: 

-13 dBm Maximum 

 

Video Characteristics 

Modulation Type: 

Analog FM 

Modulation Sense: 

Standard (Positive) or Inverted (Negative), Slide Switch Selectable 

Frequency Response (Specify): 

10 Hz to 3.5 MHz (Monochrome), 4.5 MHz (NTSC), or 5.5 MHz 
(PAL), ±1.5 dB 

Pre-Emphasis (Specify): 

525-Line (NTSC), 625-Line (PAL), or None 

Modulation Sensitivity: 

±4 MHz / 1 Vpk-pk @ Crossover Frequency 

Input Impedance: 

75 

 Nominal, Unbalanced, Shunted by 30 pF Maximum 

Distortion: 2% 

Maximum 

Incidental FM: 

10 kHz Maximum 

 

Audio Characteristics 

Subcarriers (Specify): 

None, One, or Two 

Subcarrier Frequency (Specify): 

4.83, 5.8, 6.0, 6.2, 6.5, 6.8, 7.2, 7.5, 8.3, 8.5, or 8.59 MHz, or Custom 

Subcarrier Separation (Two): 

700 kHz Minimum 

Frequency Stability: 

±0.5% Over -20°C to +50°C 

Subcarrier Insertion Level: 

-26 dBc Nominal 

Subcarrier On/Off Control: 

Slide Switch Selectable 

Modulation Type: 

Analog FM, Positive Sense 

Frequency Response (Specify): 

20 Hz to 10 kHz (Audio) or 100 kHz (Data), ±1.5 dB 

Pre-Emphasis (Specify): 

75 µsec (NTSC) or 50 µsec (PAL) 

Modulation Sensitivity: 

100 kHz pk-pk @ 1 kHz rate, Mic (-70 to -20 dBm) or Line (-10 dBV) 

Input Impedance: 

4.7 k

 Minimum, Unbalanced 

Input Level: 

Line or Mic, Slide Switch Selectable 

Mic Supply Output (Specify): 

1.5 Vdc, 3.3 Vdc, or 5.0 Vdc 

 

Summary of Contents for VT50 Series

Page 1: ...Rev A Operation Manual VT50 Series UHF L S C Band Video Audio Transmitters Designed and Manufactured By 2465 Old Hwy 40W Ste A Verdi NV 89439 Distributed By 107 Woodbine Down Blvd Units 7 8 Toronto ON...

Page 2: ...Operating Instructions 7 4 1 Use and Function of Connectors 7 4 2 Use and Function of Switches 8 4 2 1 Frequency Selection Switches 8 4 2 2 Power Level Switch 8 4 2 3 Video Inversion Switch 9 4 2 4 A...

Page 3: ...n the market 1 2 Capabilities AMP Transmitters are designed for harsh environments and feature robust packaging and connectors Compact package sizes provide versatility in unit placement and system ap...

Page 4: ...table Frequency Response Specify 10 Hz to 3 5 MHz Monochrome 4 5 MHz NTSC or 5 5 MHz PAL 1 5 dB Pre Emphasis Specify 525 Line NTSC 625 Line PAL or None Modulation Sensitivity 4 MHz 1 Vpk pk Crossover...

Page 5: ...A 5 W RF C Band 750 mA 2 W RF 1 6 A 5 W RF On Off Control Open Off Ground On Mechanical Material CNC Machined T6061 T6 Nickel Plated Aluminum Dimensions 2 50 W x 3 50 L x 0 70 H Weight 8 oz Maximum Co...

Page 6: ...VT50 OM Rev A 4 1 4 Mechanical Drawing and Connector Pin Outs...

Page 7: ...avoided Temperatures exceeding 75 C may cause permanent damage to the equipment When not used for extended periods of time external connections including power cable video cable and antenna should be...

Page 8: ...tts Meters Watts Meters Watts Meters 0 2 0 0 26 5 0 0 42 10 0 0 59 2 3 2 0 33 7 9 0 53 15 8 0 75 5 6 3 0 47 15 8 0 74 31 6 1 05 10 20 0 0 84 50 0 1 32 100 0 1 87 15 63 2 1 49 158 1 2 35 316 2 3 33 20...

Page 9: ...C power supply to DC Power Cable red positive DC input black negative DC input ground Do not connect DC Power Cable to transmitter until all other connections are complete Connect the transmit antenna...

Page 10: ...S Band units utilize 8 slide switches UHF L Band and C Band units utilize 12 slide switches Each switch is uniquely identified FS1 through FS8 or FS1 through FS12 on the unit label To program the des...

Page 11: ...ndicated on the unit label The video inversion switch position on AMP s Receivers must match that of the transmitter or the picture will appear scrambled If using AMP s Transmitters with other receive...

Page 12: ...thermal grease such as Wakefield Engineering 120 Series Thermal Compound to improve thermal conduction between transmitter baseplate and heat sinking surface will reduce unit temperature and increase...

Page 13: ...ing video but no audio check connections between microphone and Audio Cable Also check microphone and Audio Cable for damage If these efforts fail do not attempt to repair the unit Please contact Dypl...

Page 14: ...ping damage Limitation of Warranty The above warranty does not apply to defects of or resulting from the following 1 End items included as part of a system but not designed by AMP are subject only to...

Page 15: ...at 1300 MHz and is 1300 150 W m2 For VT50 UHF transmitters the operating frequency range is 340 400 MHz resulting in a MPE of 2 27 W m2 the lowest MPE in the 340 400 MHz range occurs at 340 MHz and i...

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