Nagra seven – Broadcast

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2-channel portable digital recorder
The Nagra VII Broadcast is the go-to solution for broadcasters, offering an end-to-end solution for journalists and reporters. It includes all the tools you need to make a recording, edit it, compress it, transmit it via digital phone (ISDN) Wifi and deliver your report ready to be aired. It is a time-saving, stressless solution for journalists to enable them to focus on their editorial work and forget about technology.

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Audio inputs

The Seven offers two analog audio inputs and a single stereo digital input. It will record in PCM linear audio at sampling frequencies up to 192 kHz or in MPEG-1 layer II compressed audio formats if the compression option is installed. The inputs are equipped with traditional Nagra microphone preamplifiers for dynamic and phantom +48V microphones and offer a range of switchable sensitivities to accommodate all common microphones. AES-42 microphones can also be used as the recorder can supply the necessary 10V dc supply voltage on the AES input. The analog LINE input will accept up to +24dB, allowing it to be connected to a standard audio mixer in the field.

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The Nagra Seven has a state-of-the-art color touchscreen, allowing greater flexibility in the display modes and screens, but also eliminating all switches which are the weakest link in modern electronics. The audio levels, current operating mode and status of the recorder are shown on the touchscreen display mounted on the front of the unit. The screen is sunlight readable and gives access to the entire menu structure of the recorder. Various programmable “short cuts” are available giving many personalization possibilities.

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Editing and communication

If the optional editing option is installed, then graphic editing of the audio files is possible on the main display. Once the editing of the audio material is complete, files can be transmitted to the studio either over IP (through the ethernet connection using the File Transfer Protocol “FTP” connection) or via a GSM phone using 3G/4G or by Wifi (if the option is installed).

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The Nagra Seven is fitted with an internal 16GB micro SD flash memory that can be increased by the user if desired. The main extractable media is an SD memory card which inserts into the slot on the left side of the recorder (see picture above).

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USB 2.0 port

A micro-AB USB port allows the unit to be connected to a computer for file transfer. With an interface adapter, the same port can also be used to connect an external device such as a USB memory stick or computer keyboard for data entry.

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  • SMPTE / EBU Time Code or I.S.D.N. options
  • Ethernet (Ftp and VoIP)
  • WiFi / 3G/4G option (Ftp and VoIP) / GSM
  • USB 2.0 communication
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Get an insight into the Nagra Pro Audio


Technical specification


Internal storage: Micro SD Flash memory card
Removable media: SD Flash memorycard
Disk format: FAT 16 / 32
Recording Method: Linear digital PCM, optional:MPEG 1 layer II
File type: 16 / 24 bit Broadcast Wave File BWF (WAV)
A/D & D/A: 24 Bit Sigma Delta
Bit rates: 32 kbits/s up to 384 kbits/sec
Tracks: 2 individual
Sampling Rate: 44.1, 48, 88.2, 96, 176.4 and 192kHz
Recording capacity: 1hr at 24 bit 48 kHz per GB of memory
Pre-recording buffer: Programmable
Display: Color LCD touchscreen
Level meters: On colour display



Digital input: XLR 3-pole / AES 42
Analogue inputs: 2 x XLR Microphone (Dynamic, +48V Phantom) / line
Mic. input sensitivity: 2.8, 10 and 40 mV/Pa selectable
Mic. input noise: Uin < 1µV (2.8 and 10 mV) @ 220Ω Uin < 1.6µV (40 mV)
Limiters: On microphone inputs
Line input sensitivity: Adjustable from -6 dBm up to +24 dBm for 0 dBFS recording
THD at 1 kHz: 2.8mV Mic <0.2%, 10mV Mic <0.1%, line <0.1% (measured on AES out)
Frequency response: Mic, 10Hz – 75 kHz (+0 – 3dB), Line 10 Hz – 90 kHz (+0 -1dB) (measured on AES out)
Signal-to-noise ratio: >110 dB ASA “A”
Input level adj. range: 42 dB Mic and from -6 to +24 dB Line
Input filters: LFA
Internal microphone: On the front panel
Crosstalk: Mic >70dB : Line > 110dB



Analogue line output: XLR 4.4V max (+15 dBm)
Crosstalk: >110 dB
Signal-to-noise ratio: >100 dB
Digital output: XLR AES-3 (24 bit or 16 bit)
THD+N: <0.004%
Frequency response: 10 Hz – 75 kHz (+0-3dB)
Headphones: Stereo 6.3mm (¼”) Jack 50 Ω
Internal speaker: 0.3W



USB: Micro AB connector
M/S Decoder: Switchable
Ethernet: RJ 45



Dimensions: 165 x 175 x 65mm (W x D x H) (Incl. battery box)
Weight: 800g (1.75 lbs) (Incl. battery pack)
Power supply: External 15V
Power Consumption: Approximately 5W
Charge time: Approximately 3 hours
Battery life: >5 hours
Relative humidity: From 10% to 99% (non condensing)


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Nagra seven front time code wifi 3G 4G gsm headset microphone