ZFR300 transmitter/recorder
  • Encripted Radio Mic
Records timecoded audio files as well transmitting wireless timecode, ZaxNet audio and remote control between Zaxcom products.

The Zaxcom ZFR 300 (Zaxcom Flash Recorder) is the same size as Zaxcom TRXLA2 wireless transmitter and can accept standard lavaliere microphones. A stereo ZFR can accept two lavaliere microphones, or two unbalanced microphone inputs.

The ZFR can be used as an easy way to record ISO tracks on multiple talent with no fears of being out of range or having to deal with RF issues.
On power up the ZRF will jam time code via the ZaxNet 2.4Ghz signal and will then start transmitting QC audio with time code within 10 seconds. The built-in ZaxNet transmitter is used for quality control monitoring and can be used as a timecode master to wirelessly jam other recording body pack recorders or recording wireless transmitters. The body packs can optionally re-jam time code every few minutes to maintain sub-frame accurate time code lock. At the end of your shoot you gather each SD memory card from the ZFR and deliver them to post.
Post production can then easily drop each ISO track into their non-linear edit system and have a clean timecoded audio track to work with.
Recording systems can be as simple as a single ZFR recorder and a single ERX2TCD receiver to wirelessly monitor the audio and time code from the recorder. Any number of ZFR recorders and wireless transmitters can be utilized to form an unlimited virtual multi-track recording system. The advantage of this system is that for production sound it eliminates the limitations of wireless microphones.

All of Zaxcom wireless has a unique feature that is not available in any other wireless systems. Each of Zaxcom’s TRX belt pack, plug-on and, camera link transmitter features a built-in two track timecode recorder. This feature allows the inputted audio to be recorded directly to a removable micro SD card.

You can use the transmitter as a standalone recorder. So if you need to record talent for long periods of time or, if they are going to wander off on their own out of reception range, just wire them up and you can cleanly capture hours of high quality timecoded audio. In that situation you can also optionally shut of the RF transmitter portion and use the TRX in record only mode to extend the battery life.

The recorder can also give you the confidence that you can cleanly capture high quality, drop out free audio regardless of how harsh of an RF environment you are in. You can set up the recorder to be in constant record mode where it is recording all the time, or you can set it up to go into record when the scene begins. This system is like having an infinite virtual multi-track where you have no track or range limits.

The recorder is capable of recording 96 hours of full bandwidth 24 bit timecoded audio on a single card. The recorder utilizes Zaxcom’s Mobile Audio Recording Format or MARF. MARF is an ultra stable, loss-less fault tolerant recording system that will give you confidence that in the event of power loss, due to dead batteries, all audio up to the exact point that the TRX lost power will be preserved. The files are recorded as a .zax file extension and can be quickly and easily be converted to both industry standard BWF and MP3 file, while maintaining its timecode and metadata. All that is needed is ZaxConvert, a free utility that can be downloading from the Zaxcom web site.

Mobile Audio Recording Format or MARF is Zaxcom’s lossless fault tolerant recording system. MARF is a very robust recording system where the recorded digital files don’t need to be closed or finalized. So if power is lost during recording, all audio right up to the point where power is lost, will be preserved. MARF’s robustness lends itself often be immune from viruses and corruption that can affect standard recording formats.

NeverClip™ incorporates two separate analog to digital converters that work in conjunction with each other to give you an unprecedented 137dB of dynamic range in Nomad and Zax-Maxx recorders and 125dB of dynamic range in Zaxcom TRX wireless and ZFR miniature recorders. The signals from the two converters are combined in the digital domain to provide the entire, unclipped dynamic range of the audio inputs to Nomad, Maxx, TRX’s transmitters or ZFR’s recorders.

After inputting, or locking to, an external timecode signal the timecode generator will now take over and generate it own frame accurate timecode. The timecode generator in all of Zaxcom products, with the exception of the ERX, are very stable and use TCXO temperature compensated crystal oscillators that give a clock accuracy of 1.54 PPM which equates to 1 frame out in 6 hours. In the case of the ERX an TCXO chip is not necessary since it is constantly updating its timecode from the source All products can read and generate all standard SMPTE timecode frame-rates: 23.98, 24, 25, 29.97NDF, 29.97DF, 30NDF, 30DF.

ZaxNet is a wireless network that runs on a user selectable 2.4 GHz RF signal. ZaxNet is used for the distribution of timecode, IFB audio and metadata. That same ZaxNet signal is also is used to control TRX wireless transmitters.

ZaxNet gives you the ability to control any Zaxcom TRX wireless remotely, so there is no need to approach talent and fumble with a transmitter anymore. You can remotely change the
frequency, pre-amp gain, transmitter output power and have the ability to place
the transmitter’s built-in recorder into record, playback and stop modes. All TRX transmitters also receive timecode for the built-in recorder via ZaxNet.

ZaxNet will also distribute audio, timecode and metadata over the same ZaxNet 2.4GHz frequency. This allows you to send timecode and audio throughout your set. An ERX-TCDwill receive Zaxnet and simultaneously output frame accurate timecode and audio. So an ERX-TCD mounted on a camera or digital slate will keep everything in perfect sync since the ERX will be constantly be re-jamming its timecode via ZaxNet. Another option is to use the ERX-TCD to simultaneously feed both timecode as well as a mono audio track to any camera (even if the camera does not have a timecode input).

An ERX body pack receiver can also be used on set for anyone to monitor audio via the same ZaxNet signal. Not only can you use an ERX for monitoring audio but it can also aid in taking script notes since the LCD on the ERX can display timecode, user bits, and scene and take information.

Dynamic Range: 104 dB
Distrotion: <0.01%
Frequency Response: 20 Hz to 16 kHz
Highpass Filter: Off or 70 to 220 Hz, step: 10 (6 dB per octave)
Mic Power: 3.3 VDC @ 10mA max
Mic Connector: 3-pin micro LEMO (mic side = FGB.00.303.CLAD22)
Input Range: -60 to -24 dBu
Impedance: 4.7 k ohms
ADC Bit-depth: 24 bits
ADC Sampling-rate: 48 kHz
Clock Accuracy: 1.54 PPM (1 frame out in 6 hours)
Timecode Type: SMPTE
Timecode Rame-rates: 23.98, 24, 25, 29.97NDF, 29.97DF, 30NDF, 30DF
Media: microSD card (Flash memory)
File Format: .ZAX
Recording Time: 96 hours (16 GB card)Internal
RF Frequency Range: 2.403 to 2.475 GHz
RF Modulation: Digital Spread Sepctrum
RF Frequency Step: 0.001 GHz (1 MHz)
RF Bandwidth: 1 MHz
Channel Separation: 2 MHz
Weight: 3.1 oz without battery
Dimensions (H x W x D): 3.0″ x 2.4″ x .65″
Power: Up to 12 hours (2 AA lithium or NiMH)
Display: Graphic LCD panel