VK3YNG_Foxhunt_sniffer_V2-2_使用说明书手册

VK3YNG Sniffer 4 Instruction Manual (for V2.2 hardware)VK3YNG Foxhunt Sniffer Instruction Manual(Updated version for version 2.2 hardware***)5The VK3YNG Foxhunt Sniffer is a specially designed synthesised VHF directionfinding receiver covering 120MHz and 144MHz bands.The receiver is designed for quickly finding the direction of beacons or hiddentransmitters.Anything from distant weak signals to very close "sniffing"oftransmitters running many watts of output power can be pin pointed accuratelywithout suffering "overload"problems that plague other designs.Full auto-rangingoperation allows the operator to quickly and intuitively locate the source of a signalwithout twiddling knobs or watching meters.The operator is freed to concentrate onmore important things such as negotiating terrain or reading maps.The unit is also available in a fully tested Board level format for those who wish tointegrate the unit into other equipment or build their own housing.***Note:A number of features have changed since earlier versions of the snifferwere released.This manual reflects operation ofversion 2.2 hardware and cannot beused for earlier versions of the MK4 sniffer.For a copies ofearlier sniffer manualsplease refer to the VK3YNG foxhunt web site (see the end of this manual).©2004，Bryan Ackerly,VK3YNGRev 2.2aPage 1