Drake DMM806 User Manual

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PS M 12 0 P OW E R S U P PL Y

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WARRANTY AND SPECIFICATIONS

DMM806 VIDEO DEMODULATOR (SYSTEM)

THREE YEAR LIMITED WARRANTY

R.L. DRAKE HOLDINGS LLC warrants to the original purchaser this product shall be free fro m 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:

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.

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:

All implied warranties, if any, including warranties of merchantability and tness 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 specic 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 purchas e; and c) A detailed description of the problem, including details on the electrical connection to associated equipment and

the list of such equipment.

1. Improper maintenance or repair, including the installation of parts or accessories that do not conform to the quality and specications of the original parts.

2. Misuse, abuse, neglect or improper installation.

3. Accidental or intentional damage.

SPECIFICATIONS

Input Frequency: 54 - 806 MHz

Input Level: -5 to +30 dBmV

Input Impedance: 75 Ohms

VIDEO

Output Level: 1 Vpp Adj.

Video Response: +/- 2 dB

Output Impedance: 75 Ohms

Dierential Gain: 5% Typical Dierential Phase: 5 Deg Typical

C/L Delay: -40ns Typical

AUDIO

Output Level: 1 Vpp Adj.

Output Impedance: 600 Ohms Unbalanced

GENERAL

DC Power Input: +12 VDC @ 140 mA

+ 5 VDC @ 150 mA

Operating Temperature: 0° C to +50° C

Dimensions: 1.15 x 3.5 x 7.5 in

Weight: 13.5 oz

RMM12 R ACK MOUNT

PWR

A/ V

AUDI O

VIDEO

PWR

A/ V

AUDI O

AUDIO

AUDI O

AUDI

VIDEO

PWR

A/ V

VIDEO

PWR

A/ V

AUDI O

VIDEO

PWR

A/ V

DRAKE MINI-R AC K

SINGLE CHANNEL MODUL ATOR

AUDIO

VIDEO

RMM4 R ACK

MO UN T

CHCHCH

AUDI O

AUDI

VIDEO

PWR

A/ V

AUDI O

VIDEO

PWR

A/ V

POWER SUPPLY

PO WE R 1

R 2

PO WE

DMM 806

DE MO DUL AT OR

POWER SUPPLY

DRAKE MINI-RACK

The R .L. Drake D MM 806 is a profess iona l quality agile television channel demodulator that provides an audio and video output from any VH F, UHF, or C ATV channel (54 - 806 MHz) . The modular design of the DMM 806 permits convenient pairing with a Drake Mini-rack Video Modulator to perform o-air or C ATV channel processing.

As previously desc ribed, channel selection

and audio/video output level controls are located on the front panel. The R F Input is through a n “F ” type connector loca ted on the rea r pane l. T he rear pa nel V ideo Output is als o a n “F ” type connector. The Audio O utpu is through a rear panel R C A type phono connector. T he unit is powered by a compatible Drake Mini-rack power supply

The desired o-air VHF or UHF television

module.

channel from 2 through 69 or C ATV channel from 2 through 125 is s elected by the front panel c hanne l up/down buttons. T he DMM 806 provides a standard negati ve sync video output at a nominal level of 1 V pp (Adj) a nd an audio output signa l that is level adjustable from approximately 0.5 to 1.5 Vpp with a front panel c ontrol.

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

Rev:120924

INS TALL ATI ON 3

2 F R ONT PANEL DESCRIPTION / REAR PANEL DESCRIPTION

MIDM-806C

S tock N o. 774 0C

PW R C /ANT

LO CK

V A

+100

Indicator lights

when in Standby

Lock Indicato

Channel Display

Front P anel

All operating controls are located on, or are acces sible from the front panel.

1. Video

2. Audio

3. Channel L ED -

4. C/ANT Mode B utton - Pres s button to enter

- Adjusts video output level

- Adjusts audio output level

Displays ANT or CATV

channel

the mode sele ction menu. Use the channel

UP /DOW N buttons to sele ct the type of channel s ystem required as follows:

Display Channel System

S STD (CATV)

5. Power

6. Channel DOWN

- ON/OFF push button

- Increments channel by -1

7. Channel UP - Increments channel by +1

8. +100 LE D - W hen depressed, R ED LE D lights to

indicate channels 100 and higher.

9. Lock - Depressing lock button locks present channel or

mode in memory preventing inadvertent change. A user must depress the lock channel button again for any channel/mode changes.

H HRC (C ATV)

I IRC (C ATV)

U Broadcast (TV)

Press C/ANT button again when sele ction is completed.

C ONNEC T IONS and C ONT R OL S

All connections to and from the DMM 806 are made through the rea r pan el. Figure 3 illustrates the use of the D MM 806 a s an oair channel processo r. F or this purpose, the feed from a television antenna is connected via a 75 Ohm coaxial cable to the R F IN connector of the DMM 806 . T he front panel

is set for “U” and the received TV channel

number is set for 02 through 69 as required.

The VI DEO O UT and AUDIO O UT s ignals

are connected to the VIDEO IN and AUDIO

IN c onnectors respecti vely of an adjacently

located Video Modula tor, su ch as a Drake

Mini- rack V ideo Modulator, operating on the

desired cable TV

TV ANT ENNA

AC P OW ER

C OR D

C AT V FE E D

channel . Alternatively, ca ble TV channels ca n be proc ess ed by connecting the 7 5 Ohm coa xial cab le of a C ATV feed to the DMM 8 06 R F IN connector and s etting the front panel

C/ANT mode to “S”, “H”, or “I”+ 100” and the recei ved cable channel number 02 through 125 as required. Additional channels can be processed by adding combinations of DMM 806 units with Drake Mini-rack Video Modulator units .

R ACK MOUNTING Adequate ventilation is very important in multi-channel installation s. Units should be space d a part by at least one pan el height wherever possi ble, and some air movement is advisa ble in enclosed rack cabinets . Excessi ve heat will sho rten component life and system performance will be de graded without proper cooling.

DRAKE MINI-R AC K

DMM 806

VIDEO MODUL ATOR

Rear Panel

All the connectors are located the rear panel.

Video Output

Audio Output

Power

ANT/CATV

- S tandard negative sync video at a 0.5 to 1.5 Vp-p level.

- Adjus table 0.5 to 1.5 Vpp

- T he polarized power connector accepts +12 VDC , +5 V DC and ground

- R F input from a ntenna or C ATV drop

DC P OWE R C AB LE

R F C OMBI NER

SYS T EM OUT

Figure 3

Illustration of Channel Processing using DMM 806 and a Drake Mini-rack Video Modulator.

R .L. Drake Holdings LLC

710 Pleasant Valley Drive

Customer Service and Parts T elephone: +1 (937)746-6990

Fax: +1 ( 937) 806-1510 www. rldrak e.c om

Springboro, Ohio 45066