Audio Section; General; Ctcss - Tait T880 II Series Adjustment Manual

M880-00
1.2.4

Audio Section

1.2.4.1

General

Outputs Available
Frequency Response
Flat Response:
Bandwidth
Response
De-emphasised Response:
Bandwidth
Response
Line Output:
Power
Load Impedance
Distortion (@ -70dBm signal level):
Wide Bandwidth
Mid & Narrow Bandwidth
Monitor Output:
Power
Speaker Impedance
Distortion
(@ -70dBm signal level, links set to de-emphasis)
1.2.4.2

CTCSS

Linkable High Pass Filter:
Bandwidth
Response
Hum And Noise
(1kHz at 60% system deviation
CTCSS at 10% system deviation)
Tone Detect:
Tone Squelch Opening
Tone Detect Bandwidth
Response Time
Copyright TEL
T885 General Information
.. line and monitor
.. flat or de-emphasised (750µs)
(link selectable)
.. 67 to 3400Hz
.. within +1, -2dB of output level
at 1kHz
.. 300 to 3400Hz
.. within +1, -3dB of a -6dB/octave
de-emphasis characteristic (ref. 1kHz)
.. adjustable to >+10dBm
.. 600 ohms
De-emphasised
≤2%
..
≤2%
..
.. 1W
.. 4 ohms
.. ≤3%
.. 350 to 3400Hz
.. within +1, -3dB of level at 1kHz
.. 30dB min. at 250.3Hz
35dB typical (67 to 240Hz)
.. better than 6dB sinad
3dB sinad at 250.3Hz (typical)
4dB sinad at 100Hz (typical)
.. ±2.1Hz accept (typical)
±3.0Hz reject (typical)
.. 150ms open and close (typical)
B1.7
Flat
≤2%
≤4%
10/07/00