The Lectrosonics UHF Filter/Amplifier Module (Block 20-21) provides a unique, high performance solution for antenna systems requiring long cable runs or distribution to multiple receivers or locations. The unit can be used to apply RF gain at the antenna ahead of a long run of coaxial cable to compensate for signal loss through the cable. A compact, high performance multicoupler can also be configured using the UFM50 ahead of an RF splitter to offset the loss through the splitter.

The UFM50 design places RF filtering before gain to minimize intermodulation (IM) products and prevent overload. Two transmission line ceramic resonators at the input provide filtering with a 50 MHz bandwidth. Following the filters, 12dB of gain is applied with a high quality GasFET RF amplifier with an excellent +41dBm IP3. The result is outstanding RF performance without IM or overload problems.

A switching regulator is used in the power supply to control current consumption over an input voltage range of 8-16 volts. The regulator maintains low current consumption and low heat dissipation which is especially useful in portable audio mixing common in field production and ENG.

The UFM50 can be powered from external DC or via phantom power through a coaxial cable connected to a multicoupler. The housing is constructed of cast aluminum with a brushed aluminum cover plate. Two rugged BNC connectors and a threaded, locking power jack provide secure connections for rugged field conditions and for long-term installations.

RF filtering before gain

50 MHz passband on center frequencies from 560 to 865 MHz

Ceramic resonator filters

GasFET RF amplifier

+41dBm 3rd order intercept

Switching regulator for 8-16V power at constant power dissipation to minimize heat at high voltage

Jumperable attenuators for +5dB, +8dB and +12dB total gain

Cast aluminum housing

External power or phantom power at output jack from UMC16A multicoupler

Related Questions and Answers

Q: 1. Will this pouch fit a Sony cube transmitter DWT-P01N?

A: No it will not.

Q: 2. Im interested in a purchase of a steadicam vest and I would like to know, whats the difference between EXOVEST and GOOFY EXOVEST?

A: Whether you are RIGHT HANDED or LEFT HANDED all you need to do is flip the BLOCK. This apply's to the either BLOCK; large of small block.

Q: 3. Do they make a cell phone cable?

A: https://www.bhphotovideo.com/c/product/1048152-REG/rode_sc7_trrs_iphone_cable_for.html?sts=pi&pim=Y You can order this cable for connection to smartphones and tablets.

Q: 4. I'd like to boost the range of my Lectro dualSRC (a1)Rx and (block 23) IFB Tx. Do you suggest multiple sna's ( one for each unit ) or would a splitter be optimal ?

A: Diversity receivers use 2 antennas, so for the SRc, best practice would be to use 2 for the receiver. As the SRc is not a true diversity receiver unless in ratio mode, it will not dramatically increase range in switch mode (the mode the SRc must be in to receive 2 channels). It's not recommended to use the same antenna for transmission and reception, so the IFB should be on a different antenna altogether.

Q: 5. Is it possible to use the SNA600a to boost the range of the sony uwp with sma mod?

A: In theory, yes, the Lectrosonics SNA600a Adjustable Dipole Antenna could be adapted for use with an SMA connection on a third party wireless receiver such as those from Sony's UWP line.

Q: 6. Does the 3.5mm output the two mics on two separate channels? If so, can a TRS 3.5mm to dual XLR do the same?

A: Yes, the dual-channel receiver in the Movo Photo WMX-20-DUO 2-Person Camera-Mount Wireless Lavalier Microphone System can separate each transmitter signal on it's stereo 3.5mm output. A 3.5mm TRS to dual XLR splitter cable would work well to split the receiver's output appropriately for connection to two XLR inputs.

Q: 7. I’m interested in Lectrosonics SNA600a Adjustable Dipole Antenna. I have lectrosonics UCR 210d and 205d with UM 200C and UM 200B. Are They compatible or I will need something else? I’m gonna be waiting for your answer. All the best

A: This antenna is compatible with both of your receivers. You probably need two of them for best results.

Q: 8. Does this include the lens support screw that attaches to a metabones adapter?

A: yes

Q: 9. Is this transmitter mountable to a camera shoe mount? If so will the audio be sent to the camera directly? I have a Canon 7d and am looking for a mountable lavalier kit to send audio directly to my camera.

A: The receiver is designed to mount to a camera cold shoe. The transmitter is designed to be clipped to the persons belt. There are próducts to adapt the clip to mount to a cold shoe, such as: B&H product SKU # SECA2 and others; basically, you mount this holder to your shoe and then "clip " the transmitter to it!

Q: 10. How many Movo WMX-20-TX's can be used with 1 Movo WMX-20-DUO?

A: A maximum of two wireless transmitters can be used with the wireless receiver included with the Movo Photo WMX-20-DUO 2-Person Camera-Mount Wireless Lavalier Microphone System.