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UMC16B

LECTROSONICS, INC.

4

RF OUT

12V  DC  IN

400MA MAX

RF OUT

UMC16B Front Panel

UMC16B Rear Panel

Antenna Power Jumpers

NOTE:  These jumpers are 

ONLY 

to be used when 

the Lectrosonics UFM50 or UFM230 filter/amp 

modules  are being powered from DC on the 

antenna input jacks on the UMC16B multicoupler. 

For long cable runs between the UMC16B and remote 

antennas, gain must be applied at the antenna end of 

the coaxial cable to compensate for the loss that oc-

curs over the length of the cable run. The Lectrosonics 

UFM230 or UFM50 filter/amp module can be placed in 

an optimum position close to the antenna and powered 

by DC from the UMC16B via the coaxial cable. This 

applies the gain before the loss in the coaxial cable run 

to maximize the signal to noise ratio. Jumpers at the 

antenna inputs on the UMC16B enable the DC power 

on the BNC jacks.
1. To enable the DC antenna power, unplug the power 

cord and place the UMC16B so that the front panel 

faces away from you. Remove the cover 

(12 screws).

2. Locate the jumpers on the circuit board (see illustra-

tion below). The power is applied to the BNC jack when 

the jumper is connected to both pins. To disable the 

power, remove it from both pins and replace it so that 

one end fits one of the pins and the other end of the 

jumper hangs freely.

Antenna A input 

50  ohm BNC

Antenna B input

50  ohm BNC

RF outputs x 8

50  ohm BNC

RF outputs x 8

50  ohm BNC

DC power input

12 to 18  VDC

Long coaxial 

cable run

Long coaxial 

cable run

NOTE:  If a splitter/combiner is used between the 

UFM230 and the UMC16B, it will not pass the DC 

power to the antennas.

UMC16B Multicoupler

Antennas

UFM230

UFM230

Summary of Contents for UMC16B

Page 1: ...RF OUT 12VDCIN 400MAMAX RF OUT UMC16B UMC16BL Wideband UHF Antenna Multicoupler INSTRUCTION MANUAL Rio Rancho NM USA www lectrosonics com Fill in for your records Serial Number Purchase Date ...

Page 2: ...UMC16B LECTROSONICS INC 2 ...

Page 3: ...ing connector on the rear panel secures the power connection Contents Introduction 3 Block Diagram 3 Front and Rear Panels 4 Antenna Power Jumpers 4 Antenna Use and Placement 5 Accessory Antennas 5 Specifications 6 Service and Repair 6 Returning Units for Repair 6 Mailing Address 6 Shipping Address 6 Telephones 6 Warranty Back Cover The RF signals at the inputs first pass through a ceram ic filter...

Page 4: ... cable run to maximize the signal to noise ratio Jumpers at the antenna inputs on the UMC16B enable the DC power on the BNC jacks 1 To enable the DC antenna power unplug the power cord and place the UMC16B so that the front panel faces away from you Remove the cover 12 screws 2 Locate the jumpers on the circuit board see illustra tion below The power is applied to the BNC jack when the jumper is c...

Page 5: ...single receiver with a phase correction between them to maximize the resultant RF signal If one antenna signal is significantly stronger than the other the signal from the weaker antenna will do little to prevent multipath drop outs that occur at the stronger antenna The diagram below depicts a classic multipath drop out situation In some diversity designs a second antenna in a different location ...

Page 6: ...CS service department is equipped and staffed to quickly repair your equipment In warranty repairs are made at no charge in accordance with the terms of the warranty Out of warranty repairs are charged at a modest flat rate plus parts and shipping Since it takes almost as much time and effort to deter mine what is wrong as it does to make the repair there is a charge for an exact quotation We will...

Page 7: ...UHF Antenna Multicoupler Rio Rancho NM 7 ...

Page 8: ...l pay for the cost of returning your equipment to you This warranty applies only to items returned to Lectrosonics Inc or an authorized dealer shipping costs prepaid within one year from the date of purchase This Limited Warranty is governed by the laws of the State of New Mexico It states the entire liablility of Lectrosonics Inc and the entire remedy of the purchaser for any breach of warranty a...

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