AC6158 Automatic control unit
The AC6158 is an ALSC module for automatic gain and slope adjustment. It measures two user-adjustable pilot signals and adjusts the amplifier interstage gain and slope controls to maintain a constant amplifier output level. The module also support Remote Ingress Switching (RIS) functionality which allows remote ingress switch control via forward path data link using HDM155 RIS controller module.
Features at a glance:
- Compatible with AC1500 and AC2500 amplifiers
- Full 2-pilot ALSC
- User-configurable pilot frequencies and pilot types
- Automatic learning of pilot target levels
- Manual control of amplifier gain and slope
- RIS (Remote Ingress Switching) receiver with automatic scanning
- Local 0 dB / -6 dB / <-50 dB ingress switch control
- Intelligent temperature compensation for ground and aerial cabling
- No extra gain loss
NOTE: This product has reached end-of-life status which means that it may no longer be supported and is not orderable from Teleste. Please see the end-of-life page in MyTeleste for more information.
Product Specifications
Pilot measurement and ALSC
Low pilot frequency adjustment range
160…500 MHz, 0.25 MHz steps
High pilot frequency adjustment range
500…999 MHz, 0.25 MHz steps
Low pilot detection dynamic range
91…106 dBµV
High pilot detection dynamic range
97…113 dBµV
Pilot lost decision level
75…80 dBµV
Pilot type
Analog / Digital
Pilot detector typical -3 dB bandwidth
0.6 MHz
Pilot level adjustment inaccuracy
< 1.5 dB
Gain / slope adjustment (ALSC mode)
-5…+5 dB, 0.05 dB steps
Amplifier control
Gain / slope adjustment (manual mode)
-5….+5 dB, 0.5 dB steps
Cabling type selection
Ground / Short aerial / Long aerial
Ingress switch control
ON / -6 dB / OFF
RIS data link
Data rate
9600 bps
Modulation method
FSK, ∆f = ±25 kHz
Channel bandwidth
0.2 MHz
Downstream frequency range
255…285 MHz, 0.25 MHz steps
Recommended carrier level at amp output
90…105 dBµV
General
Power consumption
0.9 W
Dimensions
122 mm x 52 mm x 20 mm
Temperature range
see amplifier spec
