Drake VMM600 User Manual

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VMM 600/VMM 806 VIDEO MODULATOR SYSTEM 1

4 WARRANTY AND SPECIFICATIONS

THREE YEAR LIMITED WARRANTY

R.L. DRAKE HOLDINGS LLC warrants to the original purchaser this product shall be free from defects in material or workmanship for three (3) years from the date of original purchase. During the warranty period R.L. DRAKE HOLDINGS LLC or an authorized Drake service facility will provide, free of charge, both parts and labor necessary to correct defects in material and workmanship. At its option, R.L. DRAKE HOLDINGS LLC may replace a defective unit.

To obtain such a warranty service, the original purchaser must:

1. Retain invoice or original proof of purchase to establish the start of the warranty period.

2. Notify R.L. DRAKE HOLDINGS LLC or the nearest authorized service facility, as soon as possible after discovery of a possible defect, of:

Correct maintenance, repair, and use are important to obtain proper performance from this product. Therefore carefully read the Instruction Manual. This warranty does not apply to any defect that R.L. DRAKE HOLDINGS LLC determines is due to:

quality and specifications of the original parts.

All implied warranties, if any, including warranties of merchantability and fitness for a particular purpose, terminate three (3) years from the date of the original purchase.

The foregoing constitutes R.L. DRAKE HOLDINGS LLC'S entire obligation with respect to this product, and the original purchaser shall have no other remedy and no claim for incidental or consequential damages, losses or expenses. Some states do not allow limitations on how long an implied warranty lasts or do not allow the exclusions or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state. This warranty shall be construed under the laws of Ohio.

a) the model and serial number, b) the identity of the seller and the approximate date of purchase; and c) A detailed description of the problem, including details on the electrical connection to associated equipment and

the list of such equipment.

3. Deliver the product to R.L. DRAKE HOLDINGS LLC or the nearest authorized service facility, or ship the same in its original container or equivalent, fully insured and shipping charges prepaid.

1. Improper maintenance or repair, including the installation of parts or accessories that do not conform to the

2. Misuse, abuse, neglect or improper installation.

3. Accidental or intentional damage.

12 POSITION RACK MOUNT POWER SUPPLY

4 POSITION

RACK MOUNT

VMM 600/VMM 806 MODULAR

SINGLE-CHANNEL MODULATORS

POWER SUPPLY

SPECIFICATIONS

Frequen cy Range:

Power Level Range: 10 dB continiously adjustable Carrier-to-Noise: 63 dB Broadband Noise: -90 dBc Spurious Outputs: -66 dBc Aural/Visual Carrier Ratio: -11 to - 19 dB

4.5 MHz Aural Inter-carrier Freq. Tolerance: ± 250 Hz; 32 to 122 °F

Frequency Response: 1.0 dB Peak to Valley Peak to Peak Video-to-RMS

Signal-to-Noise Ratio: 65 dB

Differential Phase: 2.0 degree

Differential Gain: 2.0%

VMM600-

VMM806-

Impedance: 75 Ohms Return Loss: 15 dB Power Level: +45 dBmV

Connector: “F” Female

Impedance: 75 Ohms Return Loss: 20 dB

Input Level: 1.0 volt Peak to Peak

Hum Ratio: 64 dB

54-600 MHz. Factory set to one of the following channels: Cable Channels 2-86, 95-99 600-806 MHz. Factory set to one of the following channels: Cable Channels 87-125

VIDEO

C/L Delay: Per FCC Requirements

AUDIO

Input Impedance: Greater than 10k Ohms,

Frequency Range: 50 Hz to 12 kHz Frequency Response: ± 0.5 dB Total Harmonic Distortion: 1% @ 25 kHz deviation Signal-to-Noise Ratio: 70 dB

Operating Temperature:

Specifications subject to change without notice or obligation.

Connector: RCA

Input Level: 0.5 to 4.0 volt peak-to-peak

GENERAL

DC Power Input:

unbalanced

(constant AGC range)

+12 VDC @ 240 mA, +5 VDC @ 35 mA, 0°C to +50°C.

Size:

1"W x 3.5" H x 7.78"D. 11 oz.

Weight:

The R.L. Drake VMM 600/VMM 806 Video Modulator System is a professional quality modular headend system designed to optimize ra ck sp ace. Up to 12 VMM 600 and /or VMM 806 modulators can be racked alongside a single power supply in the Drake 12 position rack mount or up to 4 modulators can be racked in th

e 4 position rack mount. Either model is a high quality, fixed channel heterodyne audio/ video modulator.

The VMM 600 provides a modulated visual and RF carrier output on any single channel

95-99;

Aeronautical channels are offset positive

2-86,

with a tolerance of ±5 kHz as required by FCC rules.

The VMM 806 provides a modulated visual and RF carrier output on any single channel 87-125.

® is a registered trademark of the R.L. Drake Holdings LLC

Printed in China

Th e het ero dyne co nver sio n sys tem , in conjunction with the use of a SAW filter, insu res optim um vesti gial sele ctivi ty for adjacent channels.

The modulators are designed to accept any standard audio/video source such as NTSC video and audio baseband signals from a sate ll ite receiver, T V c am era, vid eo tape recorder, TV demodulator, or similar signal source.

The modulators have Audio AGC that eliminates variations in loudness level that may be present among various program sources.

Th e mo dulators acc ept sta nda rd ( syn c negative) polarity video at a 0.7 to 2.5 Vp-p

l level controls are located on the front

level. Al panel for ease of operation. Output level of +45 dBmV is typical and is adjustable from +30 to +45 dBmV.

Field-defeatable audio pre-emphasis enables passing of BTSC encoded standard baseband ster eo aud io sig na ls.

Rev:120917

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