The Lectrosonics SMWB is a wireless beltpack transmitter that can also act as a recording device, capturing audio onto microSDHC cards. Paired with a lavalier or dynamic microphone, the transmitter is suitable for ENG (Electronic News Gathering), EFP (Electronic Field Productions), interviews for broadcast TV, and more. It provides Digital Hybrid Wireless technology, combining 24-bit digital-audio processing with an analog FM radio link to give you the benefits of both worlds, such as fewer dropouts and audio artifacts while maintaining a robust range of operation. The transmitter is housed in a machined aluminum case, lending the unit a rugged and dependable shell. Its water-resistant control panel adds to its usability.

Operating in the B1: 537 to 607 MHz band, the transmitter offers selectable outputs to bolster its operating range, specifically among 25, 40, and 100mW. At lower values, the transmitter’s battery life will last longer; at higher values, the operating range is increased, though at the expense of battery life. Lightweight at 2.7 oz, the transmitter boasts settings which make it compatible with dynamic microphones, electret lavaliers, and even line-level sources—so long as they can plug into the TA5M 5-pin input connector.

Input gain adjustment is possible in 1 dB increments for a total range of 44 dB. You’ll also note the low-pass filters, which can be switched to roll off at 30, 50, 70, 120, or 150 Hz to mitigate low-end disturbances. This input section also boasts servo-bias input circuitry proprietary to Lectrosonics, as well as an analog limiter controlled with DSP that, sitting ahead of the mic preamp itself, protects the audio path from overload. With its dual-release envelope, it maintains acoustic transparency, even though it can achieve over 30 dB of gain reduction.

The SMWB utilizes DSP that renders it suitable for use with all Lectrosonics Digital Hybrid receivers, though it is also backward compatible for use with 100 and 200 series transmitters, IFB receivers, and various analog receivers from third-party manufactures. The unit is powered by one AA battery, making use of switching power supplies to offer consistent voltages to its internal circuitry throughout its battery life. One AA battery is included. 

Expanding the SMWB’s functionality is its built-in recording capability, for use when transmission is simply not possible due to the conditions of the environment. The recorder operates at 24-bit/44.1 kHz, recording .WAV files to microSDHC cards. As a transmitter, the SMWB supplies an audio frequency range of 35 Hz to 20 kHz, though during recording, that lower value extends down to 20 Hz. You cannot use the transmitter and the recorder simultaneously, but it’s nice to have the option to select between the two. The transmitter includes a flexible steel-cable antenna.

2 x SMWB Wideband Beltpack Transmitter    2 x M152/5P Omnidirectional Lavalier Mic    SRc Dual-Channel Slot-Mount ENG Receiver    SRSUPER Bottom-Plate Adapter    IR Port for Fast Setup    Selectable Output Power    Lightweight, Corrosion-Resistant Housing    Can be Used as a Recorder

• Selectable output power to maximize battery life or operating range
• Lightweight, corrosion-resistant housing
• Water-resistant seals for use in damp environments
• LCD interface with lockout option
• Programmable compatibility modes for use with a wide variety of different receivers
• Servo-Bias input circuitry
• IR (infrared) port for fast setup
• Covers three standard frequency blocks
• Update firmware in the field via MicroSD card reader
• Can also be used as a recorder on internal microSDHC memory card

Related Questions and Answers

Q: 1. Does the receiver go to sleep at all?

A: The IOGEAR Wireless HDMI Transmitter and Receiver Kit (BH # IOGWHD11) has a standby mode.

Q: 2. Can I plug the receiver into studio strobe setup? Like if the strobe light has mic plug-in! Will this plug-into the strobes to trip them?

A: Yes, and it includes 3.5mm Sync Cable and 3.5mm to 1/4" Plug Adapter in the box.

Q: 3. Can one Transmitter be received by two receivers at the same time?

A: No, but up to three additional separately sold transmitters can be paired with the receiver.

Q: 4. Whats included in the box?

A: In the box is the receiver, a wall mounted power supply, and 2 antennas. The bottom plate, which is selected according to the way it will be used, must be ordered separately. For example, for a Panasonic camera you need to order an SRSUPER plate. Please see the Lectrosonics website for a list of available bottom plates.

Q: 5. Can two of these systems be used at the same time in the same room? I want to capture video from a remote device to a professional mixer and also send video out of the same mixer to an HDMI splitter.

A: IOGEAR says: I would recommend using the GWHD11 and GWHDKIT11 for this setup. . To better service you and understand your set up, please feel to contact our customer support at 1-866-946-4327 or email us: support@iogear.com. Once again, thank you for choosing IOGEAR.

Q: 6. Will the transmitter work with Sony ZV-1? I would like to use it with a Godox TT350 as a slave flash. Thanks

A: The Impact PowerSync Mini Transmitter and Receiver Kit BH #IMPS16MINRTK would not be optimal for the TT350 and a ZV-1. Godox makes their own transmitters like the B&H # GOX2TS.

Q: 7. i've got an hdmi splitter to connect 2 TVs from the same TV source provided by an internet box from sfr . for one of the 2 tv which is distant of 15m from the splitter would like use Wireless wifi from one splitter output rather than my current HDMI cable ; is the iogear device can meet my need ?

A: My guess is that it might work fine with SFR but my test was with a Comcast/Xfinity internet box. With the Comcast box, it would not work from a distance of 35-40 feet (close to your 15m length). Very poor signal quality.

Q: 8. My cable box has a port that reads IR. I presume that I may plug this into that port so I can place the cable box out of sight?

A: It's difficult to predict how well any ir extender will work in a particular situation. Lights can be a factor. Kopul intends this transmitter and receiver kit to be used with a switch like this: Kopul HDMI Switcher 4 x 1 B&H # KOHDSW2041 MFR # HDSW-2041. You may be able to use something like this: Kramer 3.5mm to Single IR Emitter Cable (10') B&H # KRCA35MIRE10 MFR # C-A35M/IRE-10

Q: 9. Will the transmitter work with a Nikon FE2 film camera? I need a way to fire a remote SB-910 speedlight.

A: The Impact PowerSync Mini Transmitter and Receiver Kit BH #IMPS16MINRTK can be used with a SB 910 and a Nikon FE2.

Q: 10. Can I use this on a canon 6d mk ii?

A: The PowerSync Mini Digital Radio Slave System, the PS16-MINI-R Receiver from Impact is compatibe with the Canon 6D Mark ll and will allow manual triggering of flash units at distances up to up to 328'.