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Adjustment Procedures for the ALAN-42 DS
1.Band setting for the production mode.
1).Turn off the radio.
2).Make Link for production mode as below.
Link
S1
S2
13
1
1
3).Press the SCAN + AM/FM key and hold.
4).Turn on the radio.
5).The radio go to production mode. At this time the LCD display" Pd" display on the LCD, and go to Channel 1.
6).
Turn off the radio.
7). Make Link as below to shipment for the default band.
Link
S1
S2
1
0
0
8). Turn on the radio to adjustment.
Even if link to default band, keep the production mode until factory reset.
1-1.
Table of Link.
Link
S1
S2
1
0
0
2
0
0
3
0
0
4
0
0
5
0
1
6
0
1
7
0
1
8
0
1
9
1
0
10
1
1
11
1
1
12
1
1
13
1
1
"0" = closed,
"1" = open
S3
S4
Results
1
1
Production Mode
S3
S4
Results
0
0
I, I2, d4, EU, EC, E, F, PL, UK
S3
S4
Results
0
0
I, I2, d4, EU, EC, E, F, PL, UK
0
1
I, I2, d4, EU, EC, E, F, PL, UK, PX
1
0
I, I2, d4, EU, EC, E, F, PL, UK, RU
1
1
I, I2, d4, EU, EC, E, F, PL, UK, PX, RU
0
0
Only KSA
0
1
Only EC
1
0
AU, AM
1
1
I, I2, d4, EU, EC, E, F, PL, UK, PX, RU, SW, AU, NZ
0
0
Only RU
0
0
RU, PC
0
1
Only E
1
0
Only NZ
1
1
Production Mode
For factory
Default band
Default band
For factory

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Summary of Contents for Midland ALAN-42 DS

  • Page 1 Adjustment Procedures for the ALAN-42 DS 1.Band setting for the production mode. 1).Turn off the radio. 2).Make Link for production mode as below. Link Results Production Mode For factory 3).Press the SCAN + AM/FM key and hold. 4).Turn on the radio.
  • Page 2 1-2. Link for the Romania. 1).Description for this link. -. Disable the power save function -. Change the backlight function. 2).Enable for the Romania. -. R852 : Install 0R or solder short. 3).Link (R852) Location.
  • Page 3 2.Adjustment Procedures 2-1.Frequency table of the production mode CH No. Frequency Remark Display (MHz) 26.965 26.975 26.985 27.185 27.205 27.215 27.385 27.395 27.405 26.565 26.755 26.955 27.60125 27.79125 27.99125 25.615 25.625 25.635 30.085 30.095 30.105 27.415 For the VCO Adjustment...
  • Page 4 2-2.Adjustment Location.
  • Page 5 2-3.VCO Adjustments Adjustment Adjustment Condition Unit Value Location Adjust Point VCO Lock 1).Select Channel : 1E (27.415MHz) TP501 TC502 1.0V±0.1 Voltage 2).At RX mode 2-4.Transmitter Adjustments Adjustment Adjustment Condition Unit Value Adjust Point 1).Select the channel : 41 (26.565MHz) 2). Enable High power 3).Select FM by AM/FM switch 4).Press PTT key Output Power (4W)
  • Page 6 .Will be blanking AM / FM icon on the LCD 4).SG level : -101dBm 5).Disable NB .Press long SCAN key 5.Factory Reset before shipment. Must be factory reset the ALAN-42 DS before shipment. The factory reset method as below. 1).Turn off the radio 2).Setting default link as below Link...
  • Page 7 6.Assemble notice. 1). VCO Can Soldering Point to avoid TX O.S.C when high power. 2). Main body to PCB ground soldering and add shield plate to solve TX harmonics.
  • Page 8 3). Main body to ground soldering for ACP in AM with DC car adaptor. 4). Main body to DC ground terminal soldering for ACP in AM with DC car adaptor.
  • Page 9 5). Assemble DC car adaptor for ACP in AM.
  • Page 10 7. Assemble Picture.