Lectrosonics Uhf Filter Amplifier Module Block 24-25

Product Code: eq15706
Availability: In Stock

$1,797.00 $2,839.26

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Description
Reviews (12)

The Lectrosonics UHF Filter Amplifier Module Block 24-25provides 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.

Parameters
Third Order Intercept	+27 dBm @ input (+41 dBm output)
Inputs	RF in: BNC DC in: 2.1 mm locking power jack
Output	RF out: BNC (and phantom power in)
Range	Block 24-25
Bandwidth	Filter: 50 MHz, factory set
Gain	RF: +12 dB with 0 dB attenuator +8 dB with 4 dB attenuator +5 dB with 7 dB attenuator
Power Requirements	8 V DC (130 mA) up to 16 volts DC (70 mA) at the DC input jack, auto reset circuit breaker
Phantom Power	DC voltage supplied by UMC16A BNC input jack or BIAS-T power inserter
Power Consumption	1.075 W nominal (switching regulator)
Compliance	CE EN55022 and EN50082-1:1998
Dimensions	2.26 x 1.39 x 1.14" (5.74 x 3.53 x 2.9 cm) (not including BNCs)
Weight	3.3 oz (93.55 g)

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. Maybe I'm an idiot. Trying to update some older Lectrosonic gear. This states for "Transmitter and Receiver" Is this a multiuse antenna?

A: You can either use the Lectrosonics AMM-24 antenna on a Lectrosonics Block 24: 614 to 639 MHz receiver, or you can use it on a transmitter.

Q: 2. 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: 3. Can I power these from the Sound Devices SL-6?

A: First make sure you are using the UFM230L for the right reason. Why do you need it?If you really do need it, then here's the answer:From the SL-6 manual:Antenna Bias PowerIf needed, 12V bias power may be provided to each antenna.To supply bias power to an antenna:1. Press the MENU button to access the Main menu.2. Do one of the following:X Turn and press the Headphone encoder to select SL-6 Antenna A Power.X Turn and press the Headphone encoder to select SL-6 Antenna B Power.3. Turn and press the Headphone encoder to turn bias power on or off.

Q: 4. Are any of the holes threaded?

A: No, the Quasar Science Q-Block with Fastening Bolts holes are not threaded.

Q: 5. I want to use this antenna for the VR Field, but do I need to choose all my transmitters to the same Block as this antenna for it to work?

A: This antenna is designed for devices operation in Block 22 only.

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. Is this compatible with CFExpress?

A: No, NEXTO DI XQD Module for the NSB-25 is only compatible with XQD cards due to firmware imitations.

Q: 8. How long can this mic stay in standby mode if using a lithium battery?

A: I'm not sure about standby mode but I've gotten 3.5-4 hours out of use out of the thing. I always use lithium batteries. Energizer makes two different ones though: Advanced which they say lasts up to 6 times longer and Ultimate which they say lasts up to 9 times longer. Great mic!

Q: 9. what is the smqv connector? is TA3M? or TA5M?

A: The connector is a TA5.

Q: 10. What is the diameter of the block?

A: The Jobu Design 3.5" riser block has a 2" diameter around.

James	16/09/2024
[Block 24-25] -Superb battery life (At 100mw, I get over 8 hours with a pair of rechargeable 2400mh NiMh AA. It will go 14 hours if using lithium AA!) -Excellent sound quality. -Unrivaled reliability. -Smartphone App lets you change settings via dweedle tone. I love the newer, darker finish on them. 5

snugglebeats	04/09/2024
[Block 24-25] For all true professionals in the sound biz, this is for you! 5

Christopher	26/08/2024
[Block 24-25] I do production sound for a varity of different types of projects from feature films, to 1 day commercial shoots. I use these in the field everyday. They are low energy consumption and I typically only have to change batteries twice in a 10-14 hour day. (I power them down during lunch and any time we have a long set up.) I have never experiences any rf cutting like on the 100 series or other brands of lavs. 9.8 out of 10!!! 5

Scott Jetson	24/08/2024
[Block 24-25] Lectrosonics claims that their products are made by fanatics and I believe them. Outstanding performance and range that eclipse the bargain brands. Wide range of frequencies available and very easy to scan locally for clear freqencies. lectrosonics service (for a fee) can also re-block your frequency group unlike other brands. 5

Marriott	08/07/2024
[Block 24-25] Solid and well built and protected hma in a day of heavy heavy rain. 5

Joo Medeiros	04/07/2024
[Block 24-25] -Futebol . soccer Maracan 5

Martin	23/06/2024
[Block 24-25] These little transmitters from Lectrosonics do so much in tiny package. great range, no drop outs or interference issues. Being so small they are easy to hide on tight and challenging wardrobe. They can be controlled using the lectro Rm iPhone app which means the only time you need to physically retrieve the pack from talent during a performance is to change the battery- which you will do less often due to the fact you can put the Tx to sleep when the talent is off the set and wake it up again when needed using the afore mentioned app. 5

James C.	12/06/2024
[Block 24-25] The price tag is a bit overwhelming when you've never used one of these guys. But once you do you'll never turn back. Quality is at the utmost and the RF strength is second to none. I never have to worry about losing a signal mid-take and they can be easily hidden with neopaks. Highly recommended. 5

Jonathan	08/06/2024
[Block 24-25] This will be used on a Video Assist card to broadcast to my IFB's with picture and it is perfect for the job. With Lectro's usual cast iron manufacturing I feel safe placing this on someone else equipment cart and it working with no problems. Changing frequency is easy with this, but with my aging sight I only wish that the receivers would change as easy. 5

Piers	04/06/2024
[Block 24-25] I thought the level of expertise, the overall knowledge experience of the customer help was outstanding. Both the gentleman I spoke to were extremely polite and courteous, keeping me informed of the movements of my order. 5