The Showman 1000 Off Air Receiver from dB Broadcast is a multi-standard analogue TV demodulator for professional broadcast applications and is capable of receiving RF signals from most terrestrial or cable analogue broadcast TV standards.
The Showman 1000 series is the latest in a line of well established Showman products to have been developed over the last decade. This third generation Showman can be used with PAL, SECAM and NTSC television standards, allowing for operation across the world.
Standards Covered
SYSTEM AUDIO PAL I FM Mono PAL B/G FM Mono PAL B/G FM Mono + NICAM dB Broadcast... PAL D/K FM Mono + NICAM PAL M/N FM Mono + BTSC + SAP SECAM D/K FM Mono + NICAM SECAM L FM Mono + NICAM
Showman 1000 SYSTEM AUDIO PAL I FM Mono + NICAM PAL B/G FM Stereo PAL B/G FM Stereo + NICAM Multi-standard PAL M/N FM Mono SECAM D/K FM Mono SECAM L AM Mono NTSC M/N FM Mono Analogue TV demodulator NTSC M/N FM Mono + BTSC Stereo The Showman 1000 range consists of two units; a multi-standard base model for monitoring applications and a higher specification unit incorporating IF inputs and outputs.
The unit is suitable for: • Fixed monitoring within the MCR: Monitoring of outgoing • Outside Broadcast monitoring: monitoring live programs TV signals and own • Analogue cable head ends: Off air reception prior to modulation • Transmission monitoring: News Gathering in fixed or mobile on to cable situations • Digital TV head ends: Off air reception of analogue services prior • Analogue TV transmitter monitoring to MPEG encoding
Features: • Over 20 pre-installed country/region tables • Headphone socket on front panel • Multi-standard - B/G, I, D/K, L, M/N • Dual composite video outputs • Video systems - PAL, SECAM, NTSC • Dual audio outputs • Audio systems - NICAM, FM-Stereo (A2 & EIA-J) BTSC • Adjustable audio, video and chrominance levels • Direct keying of frequency • RS232 Port for external control and software upgrades • 99 program memory • LCD screen display- 2 Line x 20 Characters
Technical Specifications: RF Input Video Input Connector: BNC type female, 75Ω Connector: 75Ω BNC Type (2 off) Tuning Range: PAL 45.25MHz to 863.25MHz Output Level: 1Vpp into 75Ω or NTSC 45.25MHz to 801.25MHz Differential Phase: < ±1.5º (typical for RF input >6dBmV) Tuning Step Size: 250KHz Differential Gain: < 3.5% pp (typical for RF input > 6dBmV) Input Level: 0.2mV to 10mV min/max (46dBµV Frequency Response: 100KHz to 4.43MHz ± 1dB for I, B/G, D/K 5-35 ºC ambient to +80dBµV) 100KHz to 3.58MHz ± 1dB for M/N 5-35 ºC ambient IF Input Group Delay Connector: BNC Type connector (post Correction off): 100KHz to 4.43MHz ± 60ns (35ns typical) for I, B/G, D/K Impedance: 50Ω 100KHz to 3.58MHz ± 50ns (35ns typical) M/N Frequency: PAL 38.9MHz Audio IF Output Outputs: 2 pairs (Audio 1 and Audio 2) Connector: BNC Type connector User configurable Impedance: 50Ω Output Impedance: Low (electronically balanced) Frequency: PAL 38.9MHz User configurable
Ordering information: SM1000S: Showman multi-standard analogue TV demodulator SM1000P: Enhanced Showman multi-standard analogue TV demodulator including IF input and output capability along with monitoring and alarm functions with a Status Log facility that can time and date stamp various alarm events for later analysis. This version also provides simultaneous outputs of both Stereo and SAP when receiving BTSC audio (Standard M/N). The IF input and IF output is on 38.9MHz vision carrier frequency for all standards.
dB Broadcast Ltd Kestrel House T +44 (0)1353 661117 Sedgeway Business Park F +44 (0)1353 665617 Witchford E [email protected] Ely, Cambs W www.dbbroadcast.co.uk CB6 2HY dB Broadcast is a leading UK broadcast systems integrator. United Kingdom As a result of continual product development, specifications are subject to change without notice.