The Lectrosonics UHF Filter/Amplifier Module (Block 24-25) 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. how many receivers can I use with one transmitter?

A: There is no limit to the amount of receivers usable with The Lectrosonics IFBT4 transmitter.

Q: 2. Can this be attached to another V-Mount battery (Core SWX Brand, etc.) other than the Core SWX PowerBase 70?

A: We're afraid not. This cable is specifically for PowerBase 70 batteries.

Q: 3. Is there a 12'' version of this product? It can be a different brand as long as it is switronix compatible.

A: as long as i know no there is not

Q: 4. Is this the cartridge/casing I need to put an SSD card into so it will fit into the NSB-25?

A: Yes this is the correct item for using a SSD with the NSB-25.

Q: 5. what is the smqv connector? is TA3M? or TA5M?

A: The connector is a TA5.

Q: 6. what is the matching reciever?

A: The Lectrosonics SMQV Super Miniature Wireless Microphone Transmitter is compatible with any Lectrosonics Digital Hybrid receiver in the correct frequency block, such as BH #LEUCR411A21.

Q: 7. no antena in the box?

A: The Lectrosonics R400a will ship with power supply and 2 antennas.

Q: 8. Does this include block 26 color caps?

A: Yes, the Lectrosonics Antenna Kit for Lectrosonics 200 and 400 Series includes one individual color cap for each frequency block, including a blue cap for block 26.

Q: 9. Is this ok to use for bag work? Would the proximity of this transmitter interfere with the receivers, I'm also carrying in my audio bag? Would the LMa model be a better solution?

A: I don't think you have anything to worry about. The systems you are using are about as good as it gets. They are all frequency agile and the system overcomes channel noise by digital encoding and decoding audio in the transmitter and receiver. That being said no wireless can be 100% fool proof. But what you are using is about as close as it gets. Even in the worst case scenario if you had an issue. You can always take a receiver out of your bag and put it in your back pocket. I think you should be fine and the LMa is unnecessary.

Q: 10. Which printer is best for this paper ?

A: I use a Canon IPF 8100 and the blacks are amazing! I have tried other papers but none compare with the richness and neutral tonality. I have used this paper exclusively since 2007. Hope this helps.