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USER'S GUIDE
"Quick Start" uses the simplest method of connecting your PK-232 to your radio - via the ra-
dio's microphone jack. However, unless you have an auxiliary speaker-mike jack, you may
not be able to monitor the channel or conveniently use the rig on voice. This type of connec-
tion may also be susceptible to RFI from nearby amateur or commercial transmitters. After
your first trials with the "Quick Start" routines in an initial test phase, you can consider alter-
nate methods shown later in this User's Guide for your permanent station installation.
Shielded wire is recommended in all cases for your microphone audio circuit. If you notice
significant hum in the monitored audio during modulation adjustments or in the Calibrate
mode, verify the ground and shield connections in the cable between the radio and the PK-
232. The cables supplied with your PK-232 are shielded for these applications.
Your PK-232 provides two separate radio input/output cable receptacles and a front-panel
radio selector switch. If you plan on using both HF and VHF radios, prepare the two cables
with suitable microphone plugs.
"Quick Start" requires that you have a second receiver in your shack so that you can listen
to your own signal. Read the remainder of this chapter carefully before connecting your PK-
232 to your radio.
MAKE SURE THAT THE RADIO CABLES EXIT "DOWNWARD" FROM THE TWO RADIO JACKS
ON THE REAR PANEL. ALTHOUGH NO DAMAGE WILL OCCUR FROM REVERSE CONNEC-
TION, YOUR PK-232 AND RADIO WILL NOT OPERATE CORRECTLY!
This procedure is divided into separate sections for FM and SSB radios. Follow these steps
exactly in order to:
o
Verify that your radio and PK-232 are connected as shown in Table 1-1 earlier in this
manual and Figure 2-2 below.
o
Feed the PK-232's AFSK audio output to your radio's microphone receptacle
or similarly connected auxiliary jack.
o
Adjust the PK-232's rear-panel output-level control to give proper modula-
tion.
o
Take the receiver's audio output from an earphone plug or speaker jack and
feed the audio directly to the PK-232.
If your transmitter has an easily accessible microphone gain control, try reducing the sensi-
tivity of the transmitter microphone circuit and increasing the signal level from your PK-232
to minimize hum or other noise problems.
PK232UG Rev. B 9/86
IMPORTANT NOTE
2-13
INSTALLATION
31
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