Trilithic vf-5 880 mhz rf selector forward/return path


Subject: Trilithic vf-5 880 mhz rf selector forward/return path
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Trilithic introduces the only preselector that offers filters for testing both on the return path and forward path. Return path preselection is provided by six precision fixed filters tuned to channels T-7 through T-12 respectively. Preselection in the 55-880 MHz range is provided by four tunable filters. Each filter, whether tunable or fixed, provides a high-selectivity shape factor of 2.2:1 for 30 dB to 3 dB, sufficient for the most demanding CATV test applications.
The Trilithic VF-5 Tunable Filter provides the preselection needed for the accurate measurement of composite triple beat, cross modulation and other spurious signals in a working CATV system. Measurements made without the use of a filter are prone to error because spectrum analyzers and signal level meters overload in the presence of many carriers. Input overload causes instruments to generate spurious signals which interfere with measurements and which may be misinterpreted as problems in the CATV system. A VF-5 filter placed between the test instrument and the system test point blocks all unnecessary signals, passing only the carrier to be analyzed to the instrument's input. By eliminating input overload, a VF-5 can improve an instrument's reliable measurement range by as much as 30 dB.
This unit has the following features:
* Forward and Return Path Preselection
* High Selectivity Shape Factor
This item is in excellent condition, working perfectly, and comes with a 14 Day Guarantee Against DOA.
Our 14 Day Guarantee Against DOA (Dead On Arrival) does not guarantee compatibility.
If something is listed AS-IS, there are absolutely no returns, refunds, or exchanges.
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