From: VK4APA@VK4KJB
To: ALL@LAN
Attention PK-232 Users
======================
Are you having trouble connecting to others with your PK-232?
Are you even having trouble doing the local loopback test as per
page 2-4 & 2-5? in the manual? Try both VHF and HF modes for this
test. The HF test is more critical because of the narrow shift.
Do the leds on the TUNE display light up evenly either side of
centre when you do the above tests? (all leds illuminated except
the extreme end ones)
It may be that the tones your PK-232 is sending are off frequency.
The following is the simple procedure to check your tones and
adjust them if necessary.
Enter "VHF ON" to set the TNC into the VHF mode and select the wide
shift tones. Refer to Page 6-30 in the PK-232 manual. This explains
part of the procedure. When the "Cal" command is issued the screen
will display the current tone frequency (and the part number of the
pot to be adjusted) updated about twice per second. Pressing the
space bar toggles the frequency and the other tone can be checked.
After checking / adjusting the VHF tones pressing the "H" key should
change to the narrow shift HF tones. Repeat as above to check these
also. It pays to go back over each adjustment a couple of times.
The "CAL" command is also useful for setting transmitter deviation
etc. if test gear is available.
"Q" quits the calibration mode and returns to the "CMD:"
The table below lists the frequencies and the pots to be adjusted to
set them to the correct values.
Mode Freq Pot to Adj
—————————-
VHF 1200 HZ R167
VHF 2200 HZ R165
HF 2110 HZ R168
HF 2310 HZ R164
Why this simple procedure and information is not in the othewise
mostly excellent handbook is very puzzling to me.
73's Phil VK4APA
GW1NGL NA7KR Kevin Roberts Ham Radio
Page last updated on 09/10/2012 by Kevin Roberts NA7KR a colection of Ham Radio and Electronic Information
To: ALL@LAN
Attention PK-232 Users
======================
Are you having trouble connecting to others with your PK-232?
Are you even having trouble doing the local loopback test as per
page 2-4 & 2-5? in the manual? Try both VHF and HF modes for this
test. The HF test is more critical because of the narrow shift.
Do the leds on the TUNE display light up evenly either side of
centre when you do the above tests? (all leds illuminated except
the extreme end ones)
It may be that the tones your PK-232 is sending are off frequency.
The following is the simple procedure to check your tones and
adjust them if necessary.
Enter "VHF ON" to set the TNC into the VHF mode and select the wide
shift tones. Refer to Page 6-30 in the PK-232 manual. This explains
part of the procedure. When the "Cal" command is issued the screen
will display the current tone frequency (and the part number of the
pot to be adjusted) updated about twice per second. Pressing the
space bar toggles the frequency and the other tone can be checked.
After checking / adjusting the VHF tones pressing the "H" key should
change to the narrow shift HF tones. Repeat as above to check these
also. It pays to go back over each adjustment a couple of times.
The "CAL" command is also useful for setting transmitter deviation
etc. if test gear is available.
"Q" quits the calibration mode and returns to the "CMD:"
The table below lists the frequencies and the pots to be adjusted to
set them to the correct values.
Mode Freq Pot to Adj
—————————-
VHF 1200 HZ R167
VHF 2200 HZ R165
HF 2110 HZ R168
HF 2310 HZ R164
Why this simple procedure and information is not in the othewise
mostly excellent handbook is very puzzling to me.
73's Phil VK4APA
GW1NGL NA7KR Kevin Roberts Ham Radio
Page last updated on 09/10/2012 by Kevin Roberts NA7KR a colection of Ham Radio and Electronic Information