MFJ-8621A_使用说明书手册

Table of ContentsFeatures..1Technical Specifications(Typical Unit)Receiver:......Transmitter:..............Simplified Technical Description:MFJ-8621A Technical Description:General:.....Receiver:…只Transmitter:..........只T/R Switching:................4TNC Data Carrier Detect CompatibilityConnecting To Your MFJ-8621A:..6Power Supply:.........Antenna:.........TNC Connection:............7.7Computer Connections:..7RFL.8Selecting Baud Rate:9Receiver Filter:...............9Transmitting:..............9Transmitter Deviation:................10Setting Deviation:....10Sound Card Operations:10Two-Way Deviation Monitoring:11Confirming Deviation:....12Ordering Crystals:.…13Receiver Crystal:.13Transmitter Crystal:13Installing Crystals:..........14Crystal Oscillator Calibration:............15Transmit Oscillator:...........15Receiver Oscillator:................15More About 9600-Baud FSK Packet Signals:.16Sending And Receiving 9600-Baud Data:.......16In Case Of Difficulty:..............181.Unable To Copy Off-Air Signals:.182.Unable To Connect:.....................183.Transmitter Erratic Or Inoperative:.18Important Operator Notes:..................18Appendix.....20Technical Assistance.....20Replacing The Fuse Link......20