Description
Modular Agile TV Channel Modulator MATCM-45 is a microprocessor controlled rebroadcast quality, phase locked loop synthesized, frequency agile CATV/TV television modulator. The double conversion and superior SAW filtering provides adjacent channel compatibility and spurious free output. The MATCM-45 provides 45dB output level from 50 to 864MHz in-cluding CATV and TV frequencies. The channelization configuration can be changed by the up/down buttons located on the front panel.
- Double heterodyne conversion
- 45dBmV minimum @50-864MHz
- Automatic band splitting filters for superior carrier to noise ratio
- SAW filtered
- Supports TV, CATV, frequency and lock function
- FCC frequency offset with automatic setting
- Pre-emphasis defeat switch accessible from side panel for the insertion of composite BTSC stereo signal.
Specification
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Place of Origin: Guangdong, China |
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Model Number: GDM-007 (MATCM-45) |
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ITEM |
TYPICAL |
Q.C.LIMIT |
TEST CONDITIONS |
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RF OUT |
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Frequency Range |
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54 - 864 MHz |
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FCC Frequency Offsets |
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Automatic |
+12.5KHz, +25KHz or None as required for each channel +12.5KHz: CATV CH14-16 CH25-41 CH43-53 +25KHz: CATV CH.42 CH98-99 |
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Output Channels |
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CATV: CH.2 - CH.135 TV (VHF)-CH.2-CH.13 (UHF).CH.14-CH.78 |
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Output Level |
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+45 dBmV Min. |
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Output Level Control |
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>10 dB |
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Output Impedance |
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75 Ohm |
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Picture Carrier Frequency |
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65 KHz |
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Inter - Carrier Frequency |
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65 KHz |
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P/S Carrier Ratio |
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-11 - -30dB Min. |
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Adjacent Channel Beat (-4.5MHz) |
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-60 dB Min. |
Over gain control range |
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Passband Flatness |
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61.5 dB P/V Max. |
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Spurious- |
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@Output Level Set 45dBmV |
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In Band |
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-60 dB Min. |
A/V Ratio @-15dBc |
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Out of Band |
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-58 dB Min. |
@ 54 - 864 MHz |
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Channel Selectivity |
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A/V Ratio @-15dBc |
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Fv - 6.00MHz |
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55 dB Min. |
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Fv - 3.58MHz |
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55 dB Min. |
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Fv - 2.42MHz |
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55 dB Min. |
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Fv - 1.50MHz |
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55 dB Min. |
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Fv- 1.25MHz |
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30 dB Min. |
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Intermodulation Distortion |
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57 dBc Min. |
Visual carrier @45dBmV |
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3 Tone 920 Beat |
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Aural carrier @-15dBc Fa +3.58MHz @-17dBc |
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Residual FM |
<2 KHz |
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Peak deviation @10KHz span |
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CARRIER / NOISE |
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60dB Min. |
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Output Return Loss |
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-3 dB Min. |
@54 - 864MHz |
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IN PUT |
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VIDEO |
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Video Input Impedance |
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75 ohm |
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Max Video Depth of Modulation |
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87.5 % Min. |
Input level 0.8Vp-p |
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Video Input @87.5% Modulation |
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1+0.4 , -0.3 Vp-p |
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C/L Delay |
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0±50 nsec |
Video 87.5% modulation, Test signal with TSG95 NTSC NTC7 cmpst. |
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Differential Dhase |
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≤5° |
Test signal with TSG95 NTSC NTC7 cmpst. |
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Video Input Return Loss |
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-18 dB Min. |
To 4.2MHz |
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AUDIO |
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Audio Input Impedance |
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10 Kohm |
Unblance |
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Audio Deviation |
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260mV RMS Max. |
@±25KHz PK iv/800Hz tone |
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Audio Pre-emphassis |
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75 u Sec |
OF/OFF Switch Selected |
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GENERAL |
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Connector Type: VIDEO IN/RF OUT |
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F TYPE |
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Connector Type: AUDIO IN |
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RCA TYPE |
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DC Power Inpu-t |
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+12V / 280mA |
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±0.2 VDC |
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+5V / 400mA |
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±0.2 VDC |
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Operating Temperature |
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@ O℃ To +50℃ |
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Size |
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W(2.5CM) * H(8.9CM) * D(21.5) |
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Weight |
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0.38Kg |
FAQ
Q: Can you produce the order with the customer's brand?
A: Yes, of course. OEM & ODM service is warmly provided.
Q: How do you control product quality?
A: Quality first. All our selected products undergo standardized testing before packaging and shipping.
Q: How do you ship the goods?
A: We usually transport by sea or air.
Q: What is your main market?
A: Europe, North America, South America, The middle east, and etc.
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