Related Manuals for ExcelWave ECCS-450-470-50-4-4-1TB
Summary of Contents for ExcelWave ECCS-450-470-50-4-4-1TB
- Page 1 CUSTOMER MANUAL ECCS-450-470-4-4-1TB 450-470MHz Compact Combining System, 4 Channels, 50W, Duplexed, Field Tunable DECEMBER 12, 2018 WWW.EXCELWAVE.COM 1-888-329-2878(Tel) 1-888-318-5528(Fax)
- Page 2 CM-ECCS-U441TB PRODUCT DESCRIPTION ECCS-450-470-50-4-4-1TB field tunable compact combining system allow four transmitters and four receivers operating in 450-470MHz share one Tx/Rx antenna. • Built-in tunable duplexer accessible by removing the cover on the bottom of the chassis. • Tune the duplexer without disconnecting the interconnection cables.
- Page 3 CM-ECCS-U441TB TUNING INSTRUCTION Tuning Tools • L-shaped Tuning Socket Wrench (Supplied, as shown in the image) • Screw Driver(Supplied) • 2-Ports Vector Network Analyzer (VNA) Fig.1 Use of tuning screw driver and wrench Tuning Rods 3 different type of tuning rods are identified in Fig.2 with digital numbers, letters and combinations of the two, and colored in blue, yellow and green respectively.
- Page 4 CM-ECCS-U441TB Network Analyzer Connection Configuration and Connection for Rx Band Tuning 1. Connect VNA port1 to the product (ECCS) antenna port, and VNA port2 to ECCS port RX1, plug in ECCS power supply, and terminate other Rx ports with 50 Ohm loads. 2.
- Page 5 CM-ECCS-U441TB Gain switches ▪ Up-On ▪ Down-Off When all gain switches are off, the maximum output gain is 10±1dB. When a switch is on, the gain will drop corresponding to the number indicated by the switch. For example, if the 4dB switch is on, then the gain will be 10±1-4=6±1dB.
- Page 6 CM-ECCS-U441TB Connection Check List VNA Connection and Configuration Measurement Port1 Port2 Load Measure Output Power Gain -20dBm VSWR(Rx1) -20dBm Out of Band Rejection (TX-RX) -20dBm Isolation (RX1-RX2) -20dBm Insertion Loss (ANT-TX1) VSWR (ANT) VSWR (TX1) Isolation (ANT-TX1) Out of Band Rejection (RX-TX) Tuning Procedure 1.
- Page 7 CM-ECCS-U441TB 4. Frequency band shift. Gently move up and down the tuning rods with the screw driver to shift the band to desired new band then lock the nuts. Move the frequency tuning rods clockwise will lower the frequency, move the frequency tuning rods counter clockwise will increase the frequency.
- Page 8 CM-ECCS-U441TB Appendix: Sample Test Curves Model Number: ECCS-450-470-4-4-1TB Fig. 8 Tx band shifted from 450-452MHz shifted to 461-463MHz Fig. 98 Rx band shifted from 457-459MHz to 468-470MHz Page 7 of 7 sales@excelwavetechnologies.com www.excelwavetechnologies.com 1-888-329-2878(Tel) 1-888-318-5528(Fax) Rev.2 ©All rights reserved, 2018...
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