TRANSMITTER COMBINERS

1 TRANSMITTER COMBINERS

30-88 MHz LOWBAND COMBINERS Telewave Lowband and Midband Combiners offer high performance with industry-standard Telewave reliability. Telewave is one of the few remaining manufacturers of full size, high- Q cavity filters between 30 and 88 MHz. These filters can be deployed in a number of configurations for low band combining and receiver filtering. The M101-030-5T8R series uses 16 cavities to combine 5 transmitters in the 37 MHz band and 8 receivers between 47-49 MHz, with transmitter spacing of only 100 KHz. Telewave has also designed a unique system to combine 2 transmitters in the 45 MHz band with 100 KHz separation, which employs custom designed Telewave hybrid couplers and a dual-cavity sideband filter. Lowband systems present a number of operational challenges, but Telewave has the tools to custom design a complete filtering system for any requirement. 1TRANSMITTER COMBINERS M101-030-5T8R TWDS-1010 Rev. 8/09 5

148-170 MHz M104-150-4TPC 4 CHANNEL LOW LOSS COMBINER The M104-150-4TPC Low Loss VHF Combiner offers the same high performance as our standard low loss combiners, in a much smaller package. State of the art technology allows us to create one of the world's smallest low loss combiners. The M104-150-4TPC combines up to 4 channels per unit, with 300 KHz separation, in only 8.75" of standard rack space. The modular combining units can be grouped for up to 16 channels to accommodate system expansion. The optional receiver system utilizes the Telewave TPMC-1543 multicoupler for enhanced receiver performance, and distribution to 4 receivers. M104-150-4TPC Combiner Unit TPMC-1543 M104-150-4TPC in 19 rack 6 148-170 MHz 1-4 channels into 1 antenna 300 KHz 100 watts per channel 3.4 db - 4 ch. at 300 KHz spacing 75 db Antenna to TX isolation (typ.) 70 db 4 square / 1/4 wave Panel dimensions (HWD) in. / cm 8.75 x 19 x 12.5 (21.6 x 48.3 x 31.75) Weight lb. (kg) 32 (14.5) TWDS-1023 Rev. 7/09

M108-150-TRM SERIES LOW LOSS VHF COMBINER The M108-150-TRM series uses up to ten 8, high Q low-loss cavities mounted on a standard EIA 19 x 72 rack. These combiners are available in a vertical or horizontal configuration, depending on customer requirements. Up to 8 cavities can be mounted vertically in two groups, or up to 10 cavities can be mounted horizontally on two 5-channel panels. The vertical configuration is useful for installation in limited space or direct wall mounting. Each cavity also contains internal support for the tuner assembly specifically to enable horizontal mounting. Optional power monitoring for each channel is available, as well as remote keying for each transmitter. The PM10C2S-1C wattmeter panel uses only 1.75 of rack space. An optional receiver system can be built around the Telewave compact preselector series, or full-size cavities as needed. Depending on the application, the TPCP-1544C or TPCP-1556 preselector may be mounted in the upper portion of a 72 or 84 rack, along with a 1RU receiver panel for up to 16 channels. As frequency re-farming continues, and new narrowband channel assignments become more common, channel spacing is even more critical. The M108-150-TRM series allows operators of high-density VHF systems to take advantage of new technology, while preserving and enhancing the performance of existing equipment. M108-150-5TRM with preselector, power monitoring, and RX panel 148-174 MHz M108-150-8TRM vertical mounting 148-174 MHz 1-10 channels into 1 or 2 antennas 125 KHz Input power (std. / opt.) 100 / 150 watts per channel 3.25 db - 5 ch. at 250 KHz spacing 4.0 db - 5 ch. at 150 KHz spacing 75 db Antenna to TX isolation (typ.) 70 db 8 diameter / 1/4 wave Panel dimensions (HWD) in. / cm 24.5 x 19 x 26 / 62 x 48.3 x 66 Weight lb. (kg) 150 (68.1) 5 ch. 1TRANSMITTER COMBINERS TWDS-1029 Rev. 7/09 7

148-174 MHz M101-150-8TRM19 LOW LOSS VHF COMBINER FOR CLOSE SPACING The M101-150-8TRM19 uses up to eight 10, high Q low-loss cavities mounted on a standard EIA 19 x 72 rack. This combiner provides as much as 75 db isolation for each transmitter, with spacing as close as 105 KHz. Each channel has a separate isolator with 60 Watt load (standard), and all tuning is accessible from the front panel. Optional power monitoring for each channel is available, as well as remote keying for each transmitter. The PM10C2S-1C wattmeter panel uses only 1.75 of rack space. The optional receiver system is built around the Telewave compact preselector series. Depending on the application, the TPCP-1544C or 1546C preselector may be integrated directly into the upper portion of the M101-150 84 rack. The 1RU receiver panel also mounts straight into the rack, preserving valuable site floor space. As frequency re-farming continues, and new narrowband channel assignments become more common, isolation between close-spaced channels is even more critical. The M101-150-8TRM19 allows operators of high-density VHF systems to take advantage of new technology, while preserving and enhancing the performance of existing equipment. 8 148-174 MHz 1-8 channels into 1 or 2 antennas 105 KHz Input power (std. / opt.) 100 / 150 watts per channel 3.0 db - 5 ch. at 250 KHz spacing 3.8 db - 5 ch. at 150 KHz spacing 75 db Antenna to TX isolation (typ.) 70 db 10 diameter / 1/4 wave Rack dimensions (HWD) in. (cm) 84 x 20 x 26 (214 x 51 x 66) Weight lb. (kg) 250 (113.5) OPTIONAL 100 WATT LOADS SHOWN TWDS-1011 Rev. 7/09

148-174 MHz M101-150-8TRM LOW LOSS VHF COMBINER The Telewave M101-150 Low Loss VHF Combiner is a unique, fully selfcontained transmitter and receiver combining system. The custom welded 24 steel frame provides a rugged enclosure for all system components. This integrated design allows channels to be added, retuned, or removed in the field at any time, without disrupting other active channels. The standard 24 x 48 rack handles up to 8 channels and 1 or 2 antennas. 10-inch High- Q cavities with dual isolators provide 75 db isolation between channels, and the optional receiver panel can drive as many as 64 receivers from a single antenna. The PM8C2S wattmeter panel allows forward or reverse power monitoring for each channel, or total power to each antenna. Up to 8 transmitters can be remotely keyed with front panel switches. All components in this system are passive, except the optional receiver amplifier. FEATURES ALL TUNING FROM FRONT 8 TRANSMITTERS INTO ONE ANTENNA UP TO 64 RECEIVERS FROM ONE ANTENNA SELF-CONTAINED, BUILDING BLOCK CONCEPT LESS THAN 3 db INSERTION LOSS WITH PROPER FREQUENCY SELECTION ALL CONNECTIONS AT TOP OF RACK 75 db TX TO TX PROTECTION 130 db RX INTERMOD PROTECTION WITH RX PNL. RF POWER MONITORING FOR ALL CHANNELS AND ANTENNA REMOTE TX KEYING FIELD TUNABLE 1TRANSMITTER COMBINERS 148-174 MHz 1-8 channels into 1 or 2 antennas 105 KHz Input power (std. / opt.) 100 / 150 watts per channel 3.0 db - 5 ch. at 250 KHz spacing 3.8 db - 5 ch. at 150 KHz spacing 75 db Antenna to TX isolation (typ.) 70 db 10 diameter / 1/4 wave 24 rack mount / N Female Rack dimensions (HWD) in. (cm) 48 x 24 x 31 (122 x 61 x 79) Weight lb. (kg) 250 (113.5) TWDS-1014 Rev. 7/09 9

400-512 MHz M106-450-4/8TPC COMPACT TRANSMITTER COMBINER PANELS The Telewave M106-450-4TPC and 8TPC Compact Low Loss Combiner Panels are designed for new, narrow-band technologies. Six-inch diameter high Q cavities and horizontal mounting dual isolators provide high performance in only 7RU (12.25 ). All components in these fieldexpandable combiners are completely passive. This design allows for front panel tuning, simplif ing installation a nd maintenance, and allows for addition of channels without any disruption of service. These combiners are shipped without racks, for mounting in existing installations. FEATURES ULTRA COMPACT - 4 CH. ONLY 12.25" HIGH 1-8 TRANSMITTERS INTO ONE ANTENNA LESS THAN 3 db INSERTION LOSS (4 CH.) MODULAR PANELS SIMPLIFY EXPANSION COMPLETELY SELF- CONTAINED LOW COST PER CHANNEL FULLY FIELD TUNABLE TX TO TX PROTECTION 10 - COMBINER 400-512 MHz 1-8 channels into 1 or 2 antennas 300 KHz 150 watts per channel 2.9 db - 4 ch. at 300 KHz spacing 3.4 db - 8 ch. at 300 KHz spacing Antenna to TX isolation (typ.) 75 db 6 diameter / 1/4 wave Panel dimensions (HWD) in. (cm) 12.25 x 19 x 17 (31.1 x 48.3 x 43.2) Weight lb. (kg) 4 ch. 60 (27.2) MAJOR OPTIONS HEAVY DUTY 19 RACKS POWER MONITORING WATTMETER PANEL RECEIVER MULTICOUPLER EXPANSION KITS TO 8 CHANNELS (M106-450-1T) TWDS-1031 Rev. 7/09

M107-250, 350, 450 TP SERIES LOW LOSS TRANSMITTER COMBINER PANELS Telewave M107-250, -350, and -450 Low Loss Combiner panels are designed for new, narrow-band technologies. All components in these fieldexpandable combiners are completely passive. This design allows front panel tuning, simplifies installation and maintenance, and allows for addition of channels without any disruption of service. Each panel fits a standard 19 rack, and allows up to 4 or 6 channels. Additional channels can be added to a panel without disrupting existing users. These combiners are shipped without racks, for mounting in existing installations. The actual height and depth of each panel can var y with frequenc y. Lower frequencies require longer cavities. FEATURES ALL TUNING FROM THE FRONT 4 OR 6 CHANNELS PER PANEL INTO ONE ANTENNA LESS THAN 3 db INSERTION LOSS MODULAR PANELS SIMPLIFY E XPA NS I O N LOW COST PER CHANNEL FULLY FIELD TUN ABLE TX TO TX PROTECTION 200-512 MHz M107-250-TP M107-350-TP M107-450-TP 200-300 MHz 300-400 MHz 400-512 MHz M107 TP 4 CHANNELS 1TRANSMITTER COMBINERS s 200-512 MHz 4 or 6 channels into one antenna 250 KHz Input power (std. / opt.) 100 / 150 watts per channel 3.25 db at 275 KHz spacing Antenna to TX isolation (typ.) 75 db 7 diameter / 1/4 wave Panel dim. typ. (HWD) in. (cm) 4 ch. 17.5 x 19 x 26 (44.5 x 48.3 x 66) (Panel height varies with freq.) 6 ch. 24.5 x 19 x 26 (62.2 x 48.3 x 66) Weight lb. (kg) 4 ch. 42 (19.1) / 6 ch. 58 (26.3) M107 TP 6 CHANNELS TWDS-1007 Rev. 7/09 11

M107-250, 350, 450 TRM SERIES EXPANDABLE LOW LOSS TRANSMITTER COMBINERS 200-512 MHz M107-250-8TRM 200-300 MHz M107-350-8TRM 300-400 MHz M107-450-8TRM 400-512 MHz Telewave M107-250, -350, and -450 Low Loss Combiners are designed for new, narrow-band technologies. All components in these field-expandable combiners are completely passive, with the exception of the optional solid-state receiver distribution amplifier. The compact layout is enclosed in a rugged steel frame. Optional power monitoring for each channel is available, as well as remote keying for each transmitter. The PM10C2S-1C wattmeter panel uses only 1.75 of rack space. An optional receiver system can be built around the Telewave compact preselector series, or fullsize cavities as needed. Depending on the application, a 4 or 6 cavity compact preselector may be mounted in the upper portion of a 72 or 84 rack, and a 1RU receiver panel with 8 or 16 channels. FEATURES ALL TUNING FROM THE FRONT UP TO 14 TRANSMITTERS INTO ONE ANTENNA LESS THAN 3 db INSERTION LOSS ALL CONNECTIONS AT TOP OF RACK COMPLETELY SELF CONTAINED LOW COST PER CHANNEL FULLY FIELD TUNABLE TX TO TX PROTECTION To meet international requirements, special configurations and expansion kits are available. A Pass- Reject duplexer, and Pass-Cavity preselector are also available. 12 s 200-512 MHz 1-14 channels into 1 or 2 antennas 250 KHz Input power (std. / opt.) 100 / 150 watts per channel 3.25 db at 275 KHz spacing Antenna to TX isolation (typ.) 75 db 7 diameter / 1/4 wave Rack dimensions (HWD) in. (cm) 72 x 20 x 26 (183 x 51 x 66) (Depth varies with frequency) Weight lb. (kg) 200 (91) Shown with Optional Receiver Distribution Panel TWDS-1001 Rev. 7/09

400-512 MHz M108-450-TRM SERIES LOW LOSS UHF COMBINER The M108-450-TRM series uses up to ten 8, high Q low-loss cavities mounted on a standard EIA 19 x 72 rack. Optional power monitoring for each channel is available, as well as remote keying for each transmitter. The PM10C2S- 1C wattmeter panel uses only 1.75 of rack space. An optional receiver system can be built around a Telewave UHF preselector. Depending on the application, the TPCP-4544 or TPCP-4546 preselector may be mounted in the upper portion of a 72 or 84 rack, and a 1RU receiver panel with 8 or 16 channels. With new narrowband channel assignments, channel spacing is even more critical. The M108-450-TRM series allows operators of high-density UHF systems to take advantage of new technology, while preserving and enhancing the performance of existing equipment. M108-450-5TRM with preselector, power monitoring, and RX panel 1TRANSMITTER COMBINERS 400-512 MHz 1-10 channels into 1 or 2 antennas 250 KHz 150 watts per channel 3.5 db - 5 ch. at 250 KHz spacing Antenna to TX isolation (typ.) 75 db 8 diameter / 1/4 wave Panel dimensions (HWD) in. (cm) 24.5 x 19 x 14 (62 x 48.3 x 35.6) Weight lb. (kg) 150 (68.1) 5 ch. TWDS-1036 Rev. 7/09 13

400-512 MHz M108-450-TRM3Q SERIES LOW LOSS UHF COMBINER The M108-450-TRM3Q series uses up to ten 8-inch, high Q 3/4-wave low-loss cavities mounted on a standard EIA 19 x 72 rack. These combiners are available in a vertical or horizontal configuration, d e p e n d i n g o n c u s t o m e r requirements. Up to 8 cavities can be mounted vertically in two groups, or up to 10 cavities can be mounted horizontally on two 5-channel panels. The vertical configuration is useful for installation in limited space or direct wall mounting. Each cavity also contains internal support for the tuner assembly specifically to enable horizontal mounting. Optional power monitoring for each channel is available, as well as remote keying for each transmitter. The PM10C2S-1C wattmeter panel uses only 1.75 of rack space. An optional receiver system can be built around the Telewave compact preselector series, or fullsize cavities as needed. Depending on the application, the TPCP-4544 or TPCP-4546 preselector may be mounted in the upper portion of a 72 or 84 rack, and a 1RU receiver panel with 8 or 16 channels. As new narrowband channel assignments become more common, channel spacing is even more critical. The M108-450-TRM series allows operators of high-density UHF systems to take advantage of new technology, while preserving and enhancing the performance of existing equipment. M108-450-5TRM3Q with preselector, power monitoring, and RX panel M108-450-8TRM3Q vertical mounting s 400-512 MHz 1-10 channels into 1 or 2 antennas 175 KHz 150 watts per channel 3.6 db - 5 ch. at 200 KHz spacing Antenna to TX isolation (typ.) 75 db 8 diameter / 3/4 wave Panel dimensions (HWD) in. (cm) 24.5 x 19 x 26 (62 x 48.3 x 66) Weight lb. (kg) 150 (68.1) 5 ch. 14 TWDS-1037 Rev. 07/09

400-512 MHz M101450-TRM193Q SERIES LOW LOSS UHF COMBINER FOR CLOSE SPACING The M101450-8TRM193Q is a high power, high capacity UHF combining system. The system combines up to eight transmitters using 10-inch, high Q, 3/4-wave low-loss cavities mounted on a standard EIA 19 x 72 rack. This new design provides as much as 75 db isolation for each transmitter, with spacing as close as 175 KHz. Each channel has a separate dual isolator, and all tuning is accessible from the front panel. Optional power monitoring for each channel is available, as well as remote keying for each transmitter. The PM10C2S-1C metering panel uses only 1.75 of vertical rack space. The optional receiver system is built around Telewave UHF preselectors. Depending on the application, the TPCP-4544, 4546, or 4548 preselector may be integrated directly into the upper portion of the M101450 84 rack. A 1RU receiver panel with 8 or 16 channels also mounts straight into the rack, preserving valuable site floor space. As frequency re-farming continues, and new narrowband channel assignments become more common, channel spacing will be even more critical. The M101450-8TRM193Q allows operators of high-density UHF systems to take advantage of new technology, while preserving and enhancing the performance of existing equipment. 1TRANSMITTER COMBINERS 400-512 MHz 1-8 channels into 1 or 2 antennas 175 KHz 150 watts per channel 3.25 db - 5 ch. at 250 KHz spacing 3.75 db - 5 ch. at 200 KHz spacing Antenna to TX isolation (typ.) 75 db 10 diameter / 3/4 wave Rack dimensions (HWD) in. (cm) 84 x 20 x 26 (214 x 51 x 66) Weight lb. (kg) 250 (113.5) OPTIONAL 100 WATT LOADS SHOWN TWDS-1020 Rev. 7/09 15

400-512 MHz M101-450-8TRM LOW LOSS UHF COMBINER The Telewave M101-450 Low Loss UHF Combiner is a unique, fully selfcontained transmitter and receiver combining system. The custom welded 24 steel frame provides a rugged enclosure for all system components. This integrated design allows channels to be added, retuned, or removed in the field at any time, without disrupting other active channels. The standard 24 x 48 rack handles up to 8 channels and 1 or 2 antennas. 10-inch High - Q cavities with dual isolators provide isolation between channels, and the optional receiver panel can drive as many as 64 receivers from a single antenna. The PM8C2S wattmeter panel allows forward or reverse power monitoring for each channel, or total power to each antenna. Up to 8 transmitters can be remotely keyed with front panel switches. All components in this system are passive, except the optional receiver amplifier. FEATURES ALL TUNING FROM FRONT 8 TRANSMITTERS INTO ONE ANTENNA UP TO 64 RECEIVERS FROM ONE ANTENNA SELF-CONTAINED, BUILDING BLOCK CONCEPT LESS THAN 3 db INSERTION LOSS WITH PROPER FREQUENCY SELECTION ALL CONNECTIONS AT TOP OF RACK TX TO TX PROTECTION 130 db RX INTERMOD PROTECTION WITH RX PNL. RF POWER MONITORING FOR ALL CHANNELS AND ANTENNA REMOTE TX KEYING FIELD TUNABLE M101-450-8TRM-8R (with optional preselector and receiver panel) 16 400-512 MHz 1-8 channels into 1 or 2 antennas 250 KHz 150 watts per channel 2.8 db at 275 KHz spacing Antenna to TX isolation (typ.) 75 db 10 diameter / 1/4 wave 24 rack mount / N Female Dimensions (HWD) in. (cm) 48 x 24 x 24 (122 x 61 x 61) Weight lb. (kg) 150 (68.1) TWDS-1016 Rev. 7/09

746-806 MHz 800-869 MHz M108-760-10TRM3Q LOW LOSS 700-800 MHz COMBINER The Telewave M108-760-TRM transmitter combiner covers 746-806 and 800-869 MHz. This combiner features 8-inch, 3/4-wave cavities for close channel spacing, and allows 700 and 800 MHz channels to be provisioned in the same rack. Each combiner covers a single band, and is a modular unit on a 24.5-inch panel. Each 19-inch rack combines up 10 channels into a common antenna, with optional duplexer, preselector, and receiver distribution. Individual channels are field-replaceable within the applicable band without causing downtime to other channels. Optional power monitoring for each channel is available, as well as remote keying for each transmitter. The PM10C2S-1C wattmeter panel uses only 1.75 of rack space. An optional receiver system can be built around the Telewave compact preselector series, or fullsize cavities as needed. Depending on the application, the TPCP-7644 preselector may be mounted in the upper portion of a 72 or 84 rack, and a 1RU receiver panel with 8 or 16 channels. The release of 760 MHz spectrum provides system operators with new channels for capacity expansion. The M108-760-TRM3Q series allows operators to flexibly deploy spectrum resources in both bands, at new or existing sites. 1TRANSMITTER COMBINERS s 746-806, 800-869 MHz 1-10 channels into 1 or 2 antennas 250 KHz 150 watts per channel 4.25 db - 5 ch. at 250 KHz spacing 4.8 db - 10 ch. at 250 KHz spacing Antenna to TX isolation (typ.) 75 db 8 diameter / 3/4 wave Panel dimensions (HWD) in. (cm) 24.5 x 19 x 16 (62 x 48.3 x 40.6) Weight lb. (kg) 150 (68.1) TWDS-1034 Rev. 7/09 17

851-869 MHz M106-860-5TP/10TP COMPACT EXPANDABLE TRUNKING COMBINER PANELS The Telewave M106-860 Compact Trunking Combiner is the industry leader for excellence in low-loss combiner technology. The completely passive combining technique with front panel tuning access simplifies installation and maintenance, and allows for the addition of new channels without any disruption of service. Each combiner panel is field expandable up to five channels. Additional pre-tuned combiner panels can be added at any time. Valuable site space is conserved when using efficient Telewave combiners. The modular building-block construction means no specialized test equipment is required. The advanced mechanical design of Telewave high Q cavities assures maximum long-term system performance. Heavy duty 19 racks, duplexers, and receiver multicoupler systems are available as upgrades. CLOSE-UP OF REAR PANEL (10 CH.) (Rack not included) 18 851-869 MHz 1-10 channels into 1 or 2 antennas 500 KHz 100 watts per channel 2.0 db - 5 ch. at 1 MHz spacing 3.2 db - 10 ch. at 500 KHz spacing Antenna to TX isolation (typ.) 65 db 6 diameter / 1/4 wave Panel dimensions (HWD) in. (cm) 12.25 x 19 x 17 (31 x 48.3 x 43.2) Weight lb. (kg) 75 (34) 5 ch. TWDS-1003 Rev. 8/09

851-869 MHz M107-860-5TRM-HP, 10TRM-HP COMPACT HIGH POWER TRUNKING COMBINER The Telewave M107-860-5TRM-HP Low Loss High Power Combiner is designed for trunking applications up to 175 watts per channel, with up to 10 channels per rack. The combiner uses 7-inch, 3/4 wave cavities, and channel expansion or maintenance can be performed without disruption of the system. RF power metering is switchable for forward and reverse directions for each transmitter and antenna. Convenient remote transmitter keying is included on the RF wattmeter panel. All high power trunking combiners are shipped complete in a 19 x 72 EIA Rack, with power monitoring, wattmeter panel with remote keying, 175 watt isolator, and -50 db sampler on 2nd stage isolator load port (75 watt load). Input connectors are N Female and output is 7-16 DIN-F. Standard cabling is high-temp RG-393. FEATURES FIELD TUNABLE 10 TRANSMITTERS INTO ONE ANTENNA POWER MONITORING FOR ALL CHANNELS AND ANTENNA -50 db RF OUTPUT POWER SAMPLER - EACH CHANNEL OPTIONS RECEIVER PANEL - 1RU 500 WATT DUPLEXER - 15 MHz PASSBAND w/ 7-16 DIN RG-393 PHASING HARNESS WITH 7-16 DIN CONNECTORS FOR (2) 5-CHANNEL PANELS HIGH POWER 5-WAY 7-16 DIN JUNCTION 1TRANSMITTER COMBINERS 851-869 MHz 1-10 channels into 1 or 2 antennas 250 KHz 175 watts per channel 2.2 db - 5 ch. at 1 MHz spacing 4.25 db - 5 ch. at 250 KHz spacing 3.2 db - 10 ch. at 500 KHz spacing 85 db Antenna to TX isolation (typ.) 7 diameter / 3/4 wave, 7-16 DIN Panel dimensions (HWD) in. (cm) 17.5 x 19 x 17 (44.5 x 48 x 43) Weight lb. (kg) 150 (68.1) 5 ch. TWDS-1002 Rev. 8/09 19

806-869 MHz M101-860-10TRM LOW LOSS 800 MHz COMBINER The Telewave M101-860 Trunking Combiner is an industry leader in low-loss combiner technology. Ease of installation and maintenance is accomplished by front panel tuning. These trunking combiners are complete packages, including 19 inch rack or heavy duty steel cabinet with front and rear locking doors, receiver distribution system, preselector, and power monitoring package. The completely passive combining technique allows for maintenance and addition of channels without disruption of the system. Valuable site space is conserved when using efficient Telewave designed combiners, and RF power metering is a standard feature. All forward and reverse power measurements are switchable for each transmitter and antenna. Convenient remote transmitter keying is included on the RF wattmeter panel. All rack-mount five channel combiners are field expandable to 10 channels by the addition of pre-tuned combiner panels. The modular building-block construction means no specialized test equipment is required. The advanced mechanical design of the Telewave 8-inch high Q cavities assures maximum longterm system performance. All cables are easily accessible from the front panel. There are no hidden cables. 20 806-869 MHz 1-10 channels into 1 or 2 antennas 500 KHz (250 KHz with 3Q cavities) 150 watts per channel 2.0 db - 5 ch. at 1 MHz spacing 3.2 db - 10 ch. at 500 KHz spacing 85 db Antenna to TX isolation (typ.) 8 diameter / 1/4 wave Panel dimensions (HWD) in. (cm) 24.5 x 19 x 16 (62 x 48.3 x 40.6) Weight lb. (kg) 75 (34) 5 ch. TWDS-1017 Rev. 7/09