Kenwood TM-G707 Bedienungsanleitung PDF herunterladen (Seite 68)

Note:

◆

If your TNC has a common pin for 1200 bps and 9600 bps data input,

connect this pin to the DATA connector PR9 pin. Shorting the PR9

and PR1 pins will cause the TNC to malfunction.

◆

When DC voltage is input to the PR1 pin, the TNC may not function.

If this problem happens, add a 10

F capacitor between the PR1 pin

and the TNC. Be careful with the polarity of the capacitor.

Note:

◆

If the TX delay of your TNC is not long enough, connection errors

may occur. If connection errors frequently occur, it is recommended

to set the TX delay parameter on the TNC to 300 ms by using your

computer.

◆

Using a modulator input level that is far different from the optimum

40 mV

P-P

or 2 V

P-P

specifications may result in deterioration of the

S/N ratio or signal distortion. This could result in increased errors or

a complete failure to connect with other stations.

◆

If the modulator input level exceeds approximately 3 V

P-P

, the limiter

circuit functions to maintain the same transmit bandwidth as that of

3 V

P-P

◆

Packet operation, easily affected by transmit and receive conditions,

requires a full-scale S-meter reading for reliable communication.

When the S-meter reads less than maximum during 9600 bps

operation, communication errors are frequent.

◆

Inputting 9600 bps GMSK signals at too high a level or inputting

significantly distorted signals into the transceiver can cause errors

and a wide transmit bandwidth that may interfere with other stations.

■ DATA Connector Pin Functions

This section describes each pin of the DATA

connector equipped on this transceiver.

E (GND)

DATA connector

.oNniP emaNniP noitcnuF

1DKP

tupniatadtekcaP

•reviecsnartotCNTmorfatadXT

2EDDKProfdnuorG

3SKP

ybdnatstekcaP

•ehttibihniotnipsihtesunacCNT

elihwtupnienohporcimreviecsnart

.slangistekcapgnittimsnart

49RP

atadspb0069detcetedfotuptuO

Vm005(

P-P

k01, Ω)

•rofnipnommocasasnoitcnufoslA

.tuptuoatadspb0069dnaspb0021

51RP

atadspb0021detcetedfotuptuO

Vm005(

P-P

k01, Ω)

6CQS

tuptuolortnochcleuqS

•elihwgnittimsnartatadCNTstibihnI

.neposihcleuqsreviecsnart

•eciovotecnerefretnistneverP

emasehtnosnoitacinummoc

.seirterstneverposlA.ycneuqerf

•leveLtuptuO

)hgiH(V5+:hcleuqsnepO

)woL(V0:hcleuqsdesolC

1 2 ... 63 64 65 66 67 68 69 70 71 72 73 ... 83 84

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