Telos Zephyr Xport Two-Way Radio User Manual


 
ZEPHYR
XPORT
USER’S GUIDE
42 CHAPTER 6 - T ECHNICAL & INSTALLATION IFNORMATION
7 Specifications & Warranty
All specifications subject to change without notice
GENERAL
Full Duplex field terminal supports analog
(POTS) telephone lines and ISDN circuits
(optional).
Full duplex high fidelity
operation using aacPlus
coding.
Fallback to digital
adaptive hybrid mode if line is unable to
support reliable data connections.
MPEG AAC-LD coding over optional ISDN
interface.
Auxiliary connector allows use over cellular
handset.
FREQUENCY RESPONSE
Mixer:
Line input to Mix output: ± 0.5 dB 20 Hz to
20 kHz
Mic input to Mix output: + 0.1/-0.75 dB 20 Hz
to 20 kHz
Codec (Line in to Direct Rcv Out):
End to end connection at 24 kbps: +0/- 3
dB @ 20 Hz - 15 kHz
End to end connection (ISDN) at 56 or 64
Kbps: +0/- 3 dB @ 20 Hz – 15 kHz
THD + NOISE
Mixer - From line input to Mix output (adjusted
fully to send) loop mode: 0.0043% @ 1 kHz,
22Hz – 22 kHz
Codec - End to end connection at 24 kbps (Line
in to Direct Rcv Out): 0.04% @ 1 kHz 22Hz –
22 kHz
DELAY (round trip)
aacPlus (POTS) <700 msec
AAC-LD (ISDN) <90 msec
MICROPHONE INPUT (balanced XLR-3
female)
Clip point
Gain High: -37 dBu
Gain Low: -27 dBu
Available Gain:
Gain High: 50 dB
Gain Low: 60 dB
Impedance: 3.8 K
CMRR @ 1 kHz: 75 dB
Phantom power: 12 volt @ 10 mA
LINE INPUT (balanced; ¼” TRS)
Level: +4 dBu (+20 clip)
Impedance: 19 K
CMMR @ 1 kHz 62 dB
AUXILARY JACK (unbalanced input and output
on ¼” jack: Tip output, Ring input)
Input:
Level: Unity gain to Mix Out, 20 dBu clip
point
Impedance: 9 K
Output:
Level: -26 dBu (nom.)
Impedance: 12
RECEIVE DIRECT OUT (Balanced XLR-3 male
jack)
Level: +4 dBu (20 dBu clip)
Digital nominal operating level: -18dBfs
Impedance: 50
Noise floor ( no decoder lock): -75.5 dBu