5011 SPECIALIZED COMMUNICATIONSPREPARATION1 Connect the transceiver to your personalcomputer (via an external TNC or MCP if desired).• See “COMPUTER” {page 93} and “MCP ANDTNC” {page 95}.2 Install an appropriate terminal program onto thepersonal computer.• A variety of freeware and shareware programscan be obtained in various ways. Consult yourreference material or other “packeteers”.3 Initiate the terminal program and set the followingparameters on the personal computer:• Transfer rate (TNC/MCP <–> Computer):9600 bps (default setting)• Data length: 8 bit• Stop bit: 1 bit• Parity: Non-parity• Flow control: Hardware4 Press [A/B] to select VFO A or VFO B.5 Access Menu No. 46 and select the main band orthe sub-band (default) as the data band.• “TNC” appears on the data band.• If you are using an external TNC or MCP,access Menu No. 50E to make this selection.The default is main band.6 Access Menu No. 47 and select 1200 bps (default)or 9600 bps as the transfer rate between TNCs.• You must select the same transfer rate as thetarget station.• If you are using an external TNC or MCP,access Menu No. 50F to make this selection.The default is 1200 bps.7 Select an operating frequency.8 Press [LSB/ USB/ AUTO] or [FM/ AM/ NAR] toselect LSB, USB, or FM mode.9 Access Menu No. 50A and select ON to activatethe DSP packet filter for the main transceiver.10 Turn the HI/ SHIFT control to select the centerfrequency of the packet mode. You can furtherselect either “NAR” (narrow) or “WID” (wide) forthe receiver filter width by turning the LO/ WIDTHcontrol.ycneuqerFretneC edoMgnitarepOzH0001 13KSPzH0071 )spb0021KSFA(tekcaPzH0122 )spb003KSFA(tekcaPKSP KSPNote:uThe packet (9600 bps) operation is not affected by the DSPpacket filter settings.uThe DSP packet filter works only on the main transceiver.If you are using an external TNC or MCP, proceedwith the subsequent steps.11 Following the instructions provided with your TNCor MCP, enter the calibration mode so that youcan generate a mark condition.• The MAIN band LED changes from green (RX)to red (TX).12 Access Menu No. 50B to select the appropriate AFinput level.• Select a proper input level, so that the ALCmeter reflects within the ALC zone.13 Exit the calibration mode.• The MAIN band LED changes from red (TX) togreen (RX).14 Access Menu No. 50C to select the appropriateAF output level.• You cannot use the AF control to make thisadjustment.• If you have selected sub-band in step 5,access Menu No. 50D instead.The frequencies (measured in kHz) commonly usedfor Packet are listed below:adanaC/.A.S.U )acirfA/eporuE(1noigeRURA0381~0081 —5363~0263 0063~09530017~0807 —05101~04101 —5.99041~59041 21141~10141,99041~9804101181~50181 —00112~09012 02112~0011298182~02182 00392~00292,05182~0218208705~00605 —090541~019441 —570144~579044 520134~050034DCD SENSEYou can also select the method for inhibiting the built-in TNC from transmitting. Access Menu No. 48 andselect one of the two methods. The default is “TNCBAND”.TNC BAND:The TNC does not transmit when signals are presenton the TNC (data) band.MAIN&SUB:The TNC does not transmit when signals are presenton the main transceiver or sub-receiver.