Sinclair Technologies FQ20107*3

 

Unit working when removed from service.  Factory frequencies were REJ 165.045 and Pass 162.015.  Retuned frequencies are Pass 162.285 and Rej 165.060

 

Model FQ20107*3

 

Please note shipping will be extra due to the weight of the item.  If you require shipping please contact us with require information. 

 

FQ20107-3 Cavity filter, Q circuit, high Q, one 7" cavity, 138-174 MHz

 

• Aluminum cylinder with brass and copper coaxial inner conductor

• Silver plating and chromate conversion coating limit corrosion and enhance performance

• Temperature compensated for extremely low frequency drift

 

These filters employ the Sinclair-developed Q-circuit design. The operation of the Qcircuit is such that it inverts the characteristics of a standard notch filter, and uses the narrow resonance notch to create the circuit passband while allowing the lower Q elements, such as the loop and its reactance adjustment, to produce the relatively broad isolation notch. In this manner, optimum use of the cavity components is realized, resulting in close pass/reject spacing, low insertion loss, and broad isolation notch. The filters can be tuned for either high or low pass condition, with minimum frequency separations. The Q-circuit filter combines the features of a bandpass and reject filter. This can be particularly useful when a close frequency might interfere with the desired frequency. For this reason, both the pass and reject frequencies and required insertion loss must be specified when ordering Q-circuit filters. The insertion loss, pass-to-reject frequency spacing and notch depth are all field adjustable.

 

The FQ series Q-circuit filters are designed to:

•Suppress sideband noise of a single co-located transmitter on a closely-spaced receiver.

•Protect a closely-spaced receiver from front-end overload by the carrier of colocated transmitter. •Suppress IM generation in one transmitter by protecting it further from an incoming carrier of a       closely-spaced co-located transmitter.

•Generally, “Protect One from One’’ at close frequency spacings.

 

Please note shipping will be extra due to the weight of the item.  If you require shipping please contact us with require information. 

Sinclair Technologies FQ20107*3

C$125.00Price
  • Used equipment comes with a 30 day warranty.

    Returns made within 30 days of purchase with a receipt (or proof of purchase) will be refunded with the original payment type. If a refund is requested after 30 days of purchase with a receipt, your refund will be issued in the form of a store credit. If a return is requested without a receipt, there will be a 20% restocking fee and the refund will be issued in the form of a store credit. All returns must have the original packaging and the product must be in new and re-sellable condition.

  • Orders can be expected to be received within 2 to 7 business days. We use Canada Post Xpresspost™/FedEx®

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