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The AXT400 Dual Channel Receiver combines advanced analog and digital technology to deliver exceptional RF and audio performance. The receiver features ShowLink Remote Control for real-time transmitter adjustments, Frequency Diversity mode for seamless dual-frequency operation, and Interference Detection & Avoidance. It offers up to 228 MHz of wideband tuning and supports Axient and UHF-R series transmitters. Connectivity options include transformer balanced audio outputs, AES3 digital audio output, RF Cascade ports and dual Ethernet ports for networked control and monitoring via Shure Wireless Workbench6 software.
The AXT400 offers comprehensive real-time remote control of a linked transmitter when used with the AXT610 ShowLink Access Point. Axient transmitters can be Linked to each receiver channel using the Infrared Sync feature. The ShowLink Access Point maintains a 2.4 GHz wireless network communication with the transmitters and connects to the receiver over Ethernet. All functions of the Linked transmitter including gain adjustments and synchronized frequency changes can be controlled from the front panel menu of the AXT400 in real-time.
During operation, the AXT400 receiver can detect the presence of an interfering analog or digital signal. When a potential interference source is detected, a warning message is displayed along with options for changing frequency. When used with the AXT600 Spectrum Manager, the receiver can switch to a backup frequency deployed by the Spectrum Manager, either manually or automatically. The Spectrum Manager constantly monitors a compatible frequency list to ensure the best available frequencies are used. With ShowLink Remote Control, the receiver and transmitter can execute a synchronized switch to a clear frequency, resolving the interference.
Frequency Diversity provides seamless audio in environments where there is a risk of dropouts or interference by using transmission from a single audio source on two independent radio frequencies. In Frequency Diversity mode, the AXT400 Receiver continuously analyzes signal quality and uses both signals to provide optimized audio on a single channel. In the case of RF interference on one frequency the receiver automatically uses the other frequency, delivering clean, uninterrupted audio.
Up to 228 MHz tuning bandwidth accommodates multiple transmitter bands, providing flexibility and simplifying receiver inventories. A single receiver can cover the entire US UHF TV band.
The AXT400 Receiver shares information with other system components via Ethernet, enabling advanced features such as remote control of transmitters and management using WWB 6 software. The receiver has two RJ45 Ethernet ports capable of 10/100 Mbps network speeds. The Ethernet ports are power over Ethernet (PoE) enabled, which can be used to supply power to a ShowLink Access Point. To verify the network is correctly configured, the list of network-ready devices can be identified using the Find All utility in the front panel menu.
The receiver includes a wide selection of frequency Groups which allow easy access to compatible Channels for multiple receivers. Channel Scan finds an open frequency within the current Group. Group Scan finds the open Channels in all Groups and allows easy programming of compatible frequencies to other AXT400 receivers over the network.
The cascade ports share RF signal with up to 5 receivers within the same frequency band. RF cascade allows antenna signal to be conveniently distributed for up to 10 channels without using splitters or distribution amplifiers.
The receiver is compatible with the following Shure transmitters:
470952MHz
Note:varies by region
| Under typical conditions | 150m(500ft) |
| Line of Sight,outdoors for a single system | 500m(1600ft) |
Note: Actual range depends on RF signal absorption, reflection and interference.
40Hz
18kHz(+1, -3dB)
Note: Dependent on microphone type
25kHz
45 kHz max. deviation
FM,Audio Reference Companding with pre- and de-emphasis
A-weighted,1% THD
| XLR Output | >118dB |
| AES3 Output | >130dB |
>120dB,typical
-110dBmfor 12 dB SINAD,typical
>110dB,typical
>110dB,A-Weighted
>115dB,A-Weighted
<1ms
45 kHz max. deviation
<0.3%,A-weighted,typical
Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of low-impedance output) and the tip of the high impedance 1/4-inch output.
0to-30dB(in 1 dB steps),plus Mute setting
44mmx 483mmx 366mm(1.7in.x 19.0in.x 14.4in.),H x W x D
5.5kg(12.0lbs)
Steel; Extruded aluminum
100to240V AC, 50-60Hz
1.1ARMS(referenced at 120 V AC)
-18C (0F)to63C (145F)
-29C (-20F)to74C (165F)
BNC
Unbalanced, active
50
12VDC, 150mA(300mAmaximum)
BNC
Unbalanced,filtered to receiver band
50
| AES3Type 1,XLR connector | Channel 1 | Left |
| Channel 2 | Right |
| Level | 3Vpp |
| Frequency | 48/96kHz |
75
| 1 | ground |
| 2 | audio+ |
| 3 | audio– |
Yes
50VDC,Class 1
Dual Port Ethernet10/100 Mbps
DHCP or Manual IP address
| Monitor | Unbalanced mono, 1/4in.(will drive stereo phones) |
| 6.35 mm (1/4″) | Transformer Coupled Balanced |
| XLR | Transformer Coupled Balanced |
| Monitor | 50 |
| 6.35 mm (1/4″) | <50 |
| XLR | <150 |
45 kHz max. deviation
| Monitor | 1W@ 63 |
| 6.35 mm (1/4″) | 9dBu |
| XLR | +18dBu |
30dB
| Monitor | Tip | audio+ |
| Ring | audio+ | |
| Sleeve | ground | |
| 6.35 mm (1/4″) | Tip | audio+ |
| Ring | audio– | |
| Sleeve | ground | |
| XLR | 1 | ground |
| 2 | audio+ | |
| 3 | audio– |
| Monitor | No |
| 6.35 mm (1/4″) | Yes |
| XLR | Yes |
