Sencore FC71 1 GHz Frequency Counter Radio Ham Computer Video, US $89.00 – Picture 0

Sencore FC71 1 GHz Frequency Counter Radio Ham Computer Video, US $89.00 – Picture 1

Sencore Fc71 1 Ghz Frequency Counter Radio Ham Computer Video

US $89.00

Bend, Oregon, United States
Mar 9th

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Included is the quick reference card, the owners manual, schematics and power adapter. Unit is in excellent cosmetic and working order. Downsizing my shop and spring cleaning. Shipping to be a flat $12.00 the lower 48 Sencore FC71 Frequency Counter 1GHz The Sencore FC71 is a portable, digital frequency counter which directly measures any frequency from 10Hz to 1GHz with accuracy that exceeds FCC requirements. The FC71 maintains useable accuracy over a wide temperature range and does not require a warm up time. It uses a microprocessor-compensated timebase that eliminates the need for an oven. This means the FC71 runs a full day on a single battery charge (Battery not included). Special shielding, along with a metal RF resistant case, provides interference-free operation even near the most powerful transmitters. The 8V2 digit display is readable under almost any lighting condition. Annunciators for "Hz", and "MHz", combined with automatic leading zero suppression, allow quick, interpretation-free readings. In addition, two annunciators monitor the condition of the battery while another warns you if the 50 ohm input fuse has been damaged by an overload. One function switch selects the counter function, the frequency range and which input is used. The FC71 has three inputs. The first is a high impedance, 1 megohm input which minimizes circuit loading. This input has very good sensitivity. A sensitivity control reduces sensitivity on noisy signals to provide a stable reading. Diodes protect this input from overload. The second input to the FC71 is terminated in 50 ohms to reduce cable ringing and other effects of mismatch on high frequency signals. Like the 1 megohm input, the 50 ohm input has very good sensitivity which is also adjustable for obtaining stable readings on noisy signals. A fuse protects the 50 ohm input against overload. The third FC71 input is Sencore's exclusive Crystal Check. Any crystal can be checked for activity by simply inserting it into the front panel test socket and reading its approximate fundamental frequency. A choice of two gate times allows either fast update for troubleshooting or a slower update and extra resolution when you need readings with extra accuracy. The FC71 provides resolution down to ,01Hz without an external prescaler or gate times over 1 second. The FC71's ratio test automatically calculates the ratio of two frequencies which are applied to it. The frequencies can be applied to either input, and can range from 10Hz to 1GHz. The ratio test greatly simplifies troubleshooting digital programmable dividers and testing the frequency multiplier stages in high frequency communications transceivers. Details: Manufacturer: Sencore Model: FC71

Condition:	Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. ...	Brand	Sencore
Country/Region of Manufacture	United States
Model	FC-71