Modification of the Alinco DJ-560 for fullband coverage

Th DJ560 receives from 130 to 173.995 MHz and fron 400 to 519.995 MHz
the transmission before modification is from 144 to 147.995 MHz and 430 to 439.995 MHz.  After modification it can transmit from 130 to 173.995 MHz and from 425 to 468 MHz.
The following table gives the measured power after modification in HIGH power mode with the 7.2V battery (type EBP-10N).


Frequency       Power

130 MHz 2.00 W
131 MHz 2.00 W
132 MHz 2.00 W
133 MHz 2.10 W
134 MHz 2.10 W
135 MHz 2.10 W
136 MHz 2.10 W
137 MHz 2.10 W
138 MHz 2.00 W
139 MHz 2.00 W
140 MHz 1.90 W
141 MHz 1.90 W
142 MHz 1.80 W
143 MHz 1.80 W
144 MHz 1.80 W
145 MHz 1.80 W
146 MHz 1.70 W
147 MHz 1.60 W
148 MHz 1.60 W
149 MHz 1.60 W
150 MHz 1.55 W
151 MHz 1.50 W
152 MHz 1.50 W
153 MHz 1.50 W
154 MHz 1.45 W
155 MHz 1.45 W
156 MHz 1.40 W
157 MHz 1.40 W
158 MHz 1.40 W
159 MHz 1.40 W
160 MHz 1.40 W
161 MHz 1.35 W
162 MHz 1.35 W
163 MHz 1.35 W
164 MHz 1.35 W
165 MHz 1.30 W
166 MHz 1.30 W
167 MHz 1.30 W
168 MHz 1.25 W
169 MHz 1.30 W
170 MHz 1.30 W
171 MHz 1.35 W
172 MHz 1.40 W



424 MHz NO LOCK
425 MHz 1.80 W
426 MHz 1.80 W
427 MHz 1.80 W
428 MHz 1.80 W
429 MHz 1.80 W
430 MHz 1.80 W
431 MHz 1.80 W
432 MHz 1.85 W
433 MHz 1.85 W
434 MHz 1.85 W
435 MHz 1.85 W
436 MHz 1.90 W
437 MHz 1.90 W
438 MHz 1.90 W
439 MHz 1.85 W
440 MHz 1.85 W
441 MHz 1.85 W
442 MHz 1.80 W
443 MHz 1.80 W
444 MHz 1.80 W
445 MHz 1.80 W
446 MHz 1.80 W
447 MHz 1.80 W
448 MHz 1.75 W
449 MHz 1.75 W
450 MHz 1.70 W
451 MHz 1.70 W
452 MHz 1.70 W
453 MHz 1.60 W
454 MHz 1.60 W
455 MHz 1.55 W
456 MHz 1.55 W
457 MHz 1.50 W
458 MHz 1.40 W
459 MHz 1.25 W
460 MHz 1.20 W
461 MHz 1.20 W
462 MHz 1.10 W
463 MHz 1.00 W
464 MHz 0.90 W
465 MHz 0.85 W
466 MHz 0.80 W
467 MHz 0.75 W
468 MHz NO LOCK



Measured power with different batteries


Battery Mode    Frequency       Power

EBP-10N 7.2 Volts       Low Power       144 MHz .2 W
EBP-10N 7.2 Volts       HighPower       144 MHz 1.8 W
EBP-12N 12 Volts        Low Power       144 MHz .4 W
EBP-12N 12 Volts        High Power      144 MHz 4.2 W
EBP-10N 7.2 Volts       Low Power       430 MHz .3W
EBP-10N 7.2 Volts       HighPower       430 MHz 1.8 W
EBP-12N 12 Volts        Low Power       430 MHz .4 W
EBP-12N 12 Volts        High Power      430 MHz 5.2 W


The modification is very simple to do.
- remove the battery
- remove the antenna and the rubber cap for audio jacks
- remove the 3  nuts on volume control and dial control
- remove the screw close to the antenna socket
- remove the top cover
- remove the 4 screws retaining the ground plate at the bottom,
- remove the screw of the + contact
- remove the screw on the hand stap eye
- remove the 3 srews retaining the front and the back
- be very careful in opening the transceiver, there is a short flat cable between the HF bord and the processor board. To release the cable from the connector on HF board, you have to lift the upper ring of the white connector.
- disconnect all the plugs and separate the transceiver in 2
- on the front part, remove the audio board by removing the 4 srews
- remouve the audio board, be careful when you unplug the connector on the bottom right
- disconnect all the plugs
- now you are in front of the processor board
- when the bottom of the board (battery side) is close to you, locate a 1 inch long piece of grey or yellow wire located on the right side just above the wires going to the PTT control.  The wire is soldered on 2 pads identified by the letters BP and an h
alf circle silkscreened on the board.
- cut the grey or yellow wire
- reassemble your transceiver
- reset the processor by pressing and holding the Function key when turn the power on


Remember, it is ILLEGAL to transmit outside the ham band with non-FCC-type-accepted equipment, even if you are licensed to use such frequencies.

Good Luck.