application ANTEC s 870 MHz Mini-Bridger is deployed in the RF network as either a two or three output device. The Mini-Bridger provides a flexible high gain and high level PHD platform that is cost-effective and readily adaptable to numerous trunk and feeder design applications. ANTEC s Mini-Bridger is ideally suited for new build and rebuild construction and is gain-targeted for amplifier direct drop-in retrofit in 750/870 MHz transitional upgrades. All new active electronics offer improved performance, reliability and accessibility. benefits Enhanced performance via advanced hybrid technology Easily activated third output port Flexible system design application Ability to isolate sources of return ingress Eliminates need for externally mounted power inserters Increases network reach Reduces overall rebuild/upgrade costs Minimizes plug-in accessory inventory requirements Simple set-up 1
rf transmission features 5-1000 MHz platform Standard five port, three output housing Anti-corrosive housing coating Advanced hybrid technology Plug-in diplex filters with multiple frequency splits Multiple ASG pilot control frequencies Return path bridger switching input/output directional coupler test points, forward and return path F-connector external test points Module cover guide slots for all plug-ins Multiple equalizers, 750 and 870 MHz Fixed value plug-in pads and equalizers Multiple plug-in passives, splitter, DC8, DC12 40-90 V ac auto-ranging power supply High efficiency power supply 15 amp power passing capacity Dedicated ac input port optional bridger (wink) switching An optional plug-in is provided in each return path utilized to identify and isolate ingress in the return RF network. Wink switches are controlled via ANTEC s element management system. mini-bridger block diagram 1 Input Output High Low Low High Input Input WS Output WS 2 DC 4 Split or HY2 HY4 Jumper EQ Output Manual Level Adjustment HY1 Automatic Level Adjustment Attenuator Auto Man ASG Detector EQ HY5 SC SC EQ HY3 WS Input High Low Low High Output 3 A C I N 2
specifications 870 mhz 38 db gain asg mini-bridger model # MB-87-38-4253-535-19 description forward return Output Ports 2-3 1 Passband 1 (MHz) 53-870 5-42 Frequency Response (db) ±0.75 ±0.75 Operational Gain 2, 3 (db) 38 19 Minimum Full Gain 4 (db) 40 20.5 Reference Channel Loading (54-550 MHz) 78 NTSC 6 Reference Output Level Frequency (MHz) 54/550/750/870 5/42 Reference Output Level Over Passband (dbmv) 36/44/47/49 40/40 Reference Output Tilt Over Passband 5 (db) 13 0 ASG Control Range (db) ±3.0 N/A Pilot Frequency 6 (MHz) 535.25 N/A Output Level Stability (db) ±1.0 N/A Return Loss (db) -16-16 Test Point Level (db) -20-20 Test Point Type Directional coupler Directional coupler Test Point Accuracy (db) ±1.0 ±1.0 Noise Figure 2, 7 (db) 11 10 Composite Second Order 7 (dbc) -72-77 Composite Triple Beat 7 (dbc) -72-80 Hum Modulation (dbc) 70 60 powering Power Supply Type Auto-ranging AC Input Range (V ac) 40-90 AC Bypass Current Rating (amps) 15 AC Current 40 V 8 (amps) 1.55 60 V 8 (amps) 1.02 90 V 8 (amps) 0.71 physical Operating Temperature F ( C) -40 to 140 (-40 to 60) Dimensions (H x W x D) in. (cm) 9.11 x 12.37 x 9.11 (23.14 x 31.42 x 23.14) Weight lbs. (kg) 18.6 (8.43) Note 1: Other plug-in diplexer configurations available, refer to ordering matrix Note 2: Includes all necessary plug-in accessories and plug-in diplex filters Note 3: With ASG set at -3.0 reserve gain Note 4: Excludes plug-in equalizers Note 5: Forward output tilt referenced to flat input level with MEQ870/14 installed interstage Note 6: Other ASG pilot control frequencies available, refer to ordering matrix Note 7: Specifications reflect typical system cascade performance, individual station performance may vary Note 8: AC current load includes return amplifier 3
rf transmission specifications 870 mhz 38 db gain asg mini-bridger model # MB-87-38-6585-535-19 description forward return Output Ports 2-3 1 Passband 1 (MHz) 85-870 5-62 Frequency Response (db) ±0.75 ±0.75 Operational Gain 2, 3 (db) 38 19 Minimum Full Gain 4 (db) 40 20.5 Reference Channel Loading (65-550 MHz) 65 PAL B 6 Reference Output Level Frequency (MHz) 85/120/620/870 5/62 Reference Output Level Over Passband (dbmv) 36.5/38/46/49 40/40 Reference Output Tilt Over Passband 5 (db) 12.5 0 ASG Control Range (db) ±3.0 N/A Pilot Frequency 6 (MHz) 535.25 N/A Output Level Stability (db) ±1.0 N/A Return Loss (db) -16-16 Test Point Level (db) -20-20 Test Point Type Directional coupler Directional coupler Test Point Accuracy (db) ±1.0 ±1.0 Noise Figure 2, 7 (db) 11 10 Composite Second Order 7 (dbc) -73.5-77 Composite Triple Beat 7 (dbc) -73.5-80 Hum Modulation (dbc) 70 60 powering Power Supply Type Auto-ranging AC Input Range (V ac) 40-90 AC Bypass Current Rating (amps) 15 AC Current 40 V 8 (amps) 1.55 60 V 8 (amps) 1.02 90 V 8 (amps) 0.71 physical Operating Temperature F ( C) -40 to 140 (-40 to 60) Dimensions (H x W x D) in. (cm) 9.11 x 12.37 x 9.11 (23.14 x 31.42 x 23.14) Weight lbs. (kg) 18.6 (8.43) Note 1: Other plug-in diplexer configurations available, refer to ordering matrix Note 2: Includes all necessary plug-in accessories and plug-in diplex filters Note 3: With ASG set at -3.0 reserve gain Note 4: Excludes plug-in equalizers Note 5: Forward output tilt referenced to flat input level with MEQ870/14 installed interstage Note 6: Other ASG pilot control frequencies available, refer to ordering matrix Note 7: Specifications reflect typical system cascade performance, individual station performance may vary Note 8: AC current load includes return amplifier 4
specifications 870 mhz 38 db gain asg mini-bridger model # MB-87-38-6585-535-19 description: forward return Output Ports 2-3 1 Passband 1 (MHz) 85-870 5-62 Frequency Response (db) ±0.75 ±0.75 Operational Gain 2, 3 (db) 38 19 Minimum Full Gain 4 (db) 40 20.5 Reference Channel Loading (65-550 MHz) 65 PAL B/G 6 Reference Output Level Frequency (MHz) 85/120/620/870 5/62 Reference Output Level Over Passband (dbmv) 36.5/38/46/49 40/40 Reference Output Tilt Over Passband 5 (db) 12.5 0 ASG Control Range (db) ±3.0 N/A Pilot Frequency 6 (MHz) 535.25 N/A Output Level Stability (db) ±1.0 N/A Return Loss (db) -16-16 Test Point Level (db) -20-20 Test Point Type Directional coupler Directional coupler Test Point Accuracy (db) ±1.0 ±1.0 Noise Figure 2, 7 (db) 11 10 Composite Second Order 7 (dbc) -74.5-77 Composite Triple Beat 7 (dbc) -74.5-80 Hum Modulation (dbc) 70 60 powering Power Supply Type Auto-ranging AC Input Range (V ac) 40-90 AC Bypass Current Rating (amps) 15 AC Current 40 V 8 (amps) 1.55 60 V 8 (amps) 1.02 90 V 8 (amps) 0.71 physical Operating Temperature F ( C) -40 to 140 (-40 to 60) Dimensions (H x W x D) in. (cm) 9.11 x 12.37 x 9.11 (23.14 x 31.42 x 23.14) Weight lbs. (kg) 18.6 (8.43) Note 1: Other plug-in diplexer configurations available, refer to ordering matrix Note 2: Includes all necessary plug-in accessories and plug-in diplex filters Note 3: With ASG set at -3.0 reserve gain Note 4: Excludes plug-in equalizers Note 5: Forward output tilt referenced to flat input level with MEQ870/14 installed interstage Note 6: Other ASG pilot control frequencies available, refer to ordering matrix Note 7: Specifications reflect typical system cascade performance, individual station performance may vary Note 8: AC current load includes return amplifier 5
rf transmission plug-in accessories 2 pads and equalizers mpd/xx (mini-pad) Values 0-9.5 (0.5 db Increments), 10-18 (1 db Increments) 1 meq870/xx (forward mini-equalizer) Values 1-18 (1 db Increments) - 870 MHz Operation 1 meq750/xx (forward mini-equalizer) Values 1-18 (1 db Increments) - 750 MHz Operation 1 mce/xx (forward mini-cable equivalent equalizer) Values 01-10 (1 db Increments) 1 mreq42/xx, mreq55/xx, mreq65/xx (return mini-equalizer) Values 1-10 1 (1 db Increments) meq/0 (forward/return mini-equalizer) Set-up Equalizer with 1.0 db Loss 5-870 MHz 1 meq/j (forward/return mini-equalizer) Jumpered Equalizer with 0.0 db Loss 5-870 MHz 1 passives mspl (mini-splitter) Equal Loss to Port 2 and Port 4 mdc/08 (mini-dc) Tap Loss to Port 2, Thru Loss to Port 4 mdc/08i (mini-dc) Tap Loss to Port 4, Thru Loss to Port 2 mdc/12 (mini-dc) Tap loss to port 2, thru loss to port 4 mdc/12i (mini-dc) Tap Loss to Port 4, Thru Loss to Port 2 mdc/j (mini-jumper) Jumpered Output to Port 2 mdc/ji (mini-jumper) Jumpered Output to Port 4 Note 1: Denotes value, specify values when ordering accessories Note 2: Refer to RF LINK 870 MHz Amplifier Accessories for detailed specifications 6
ordering matrix 1 2 3 4 5 6 amplifier type bandwidth operational gain diplex filters gain control return amplifier MB = Mini-Bridger 1, 2, 3 87 = 870 MHz 38 = 38 db 4253 = 42/53 MHz 499 = 499.25 MHz 00 = Passive 5570 = 50/70 MHz 535 = 535.25 MHz 19 = 19 db Gain 6585 = 62/86 MHz 631 = 631.25 MHz ordering example model # = MB-87-38-4253-535-19 This model number indicates that the following has been ordered: 1 Mini-Bridger amplifier 2 870 MHz bandwidth 3 Includes RF Module providing 38 db forward operating station gain 4 Includes four plug-in diplex filters, 5-42 MHz return passband, 53-870 MHz forward passband 5 Includes ASG control, 535.25 MHz gain control pilot frequency 6 Includes return amp, 19 db station gain Note 1: MB station includes 40-90 V ac auto-ranging power supply Note 2: All MB housings have one input port, one dedicated ac port and three output ports Note 3: Plug-in accessories ordered separately. All pad and equalizer positions are factory installed with 0 db values except for forward input and equalizer and return output pad and equalizer 7