MODIFICATION THE PRESIDENT LINCOLN ON A 4K8 PACKET MODEM
Please note that we start with the improved reception for 1k2 screw top lid.
If you've done that stands in the middle of the prints a small PCB is at odds with print number PB-119 AA's on this little PCB also a crystal.
Also it is called IR3N06 IC IC 401.
On leg 9 of this IC is a SMD ctje C409 and a resistor R416 10K code closes at this junction you lf receipt of your modem.
This gives already an improvement for 1K2, 4K8 and 1200 baud, 4800 baud RX now works as the connection to the detector you have now made.
We now put the lid back on and turn the set on.
Now unscrew the bottom cover.
And look for J301 this is the small print behind the front of the F LOCK key J 301 is a wire connector of 3 wires.
Solder the middle wire you wire modulation of your modem with it but leave the original thread are making bald just a bit.
Please note that when you're done, check whether you have created.
No closure.
You do all this with the power of your tank disconnected or off.
Are you done with this then you have to adjust probably turn down you'r modulate because you are now become too loud.
With the modem PB0AAQ you should 4K8 your input on the modem and adjust if you've done it flows 4K8 happening inside and you hear 1K2 also.
Greetings from Utrecht the Netherlands.
Do you also have modifications for 4800 Baud I like it to receive your email.
SOURCE: GERARD
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