Midland 75-440 Gmrs Transceiver Users Manual

							75-440 User manual 
Page. 11
Installing/removing the belt clip 
The supplied belt clip allows you to hang the transceiver on your belt or jacket when you are not using the 
radio. 
To fit the belt clip onto the transceiver’s body: 
1)  Gently slide the clip into the appropriate guides 
located on the transceiver’s battery pack until it 
firmly locks. 
To remove the belt clip: 
2)  Gently move the latch located between the top 
of the belt clip and the battery pack towards the 
belt clip 
3)  Slide the belt clip off the radio. 
 
Charging the battery pack 
To charge the supplied battery pack you have to setup the charger and connect the radio as follows: 
1)  Connect the jack coming from the AC adapter to 
the cradle’s socket. 
3)  Connect the AC plug of the AC adapter’s power 
cable into a grounded AC power outlet. 
4)  Ensure that the radio is switched off. 
5)  Insert the radio into the cradle with the keypad 
toward you (the three metallic contacts of the 
battery pack must touch with the three contacts 
inside the cradle). 
6)  Wait 10-12 hours with the standard charger 2 
hours with the rapid charger and remove the 
radio.. 
 Do not remove the radio before the specified 
time, otherwise the battery’s duty could be 
temporarily reduced. 
, Do not forget to remove the radio from slow charger after 10 to 12 hours. 
, The battery charger is for indoor use only. 
, For the next charges, best duty and battery life please see the chapter “Battery Packs”. 
1 
2 
3
SLIDE DOWN 
LIFT  UP PUSH  
						

							75-440 User manual 
Page. 12
Basic Operations 
Switching the radio ON and OFF 
To switch the radio on: 
1)  Rotate the “PWR/VOL” knob clockwise until the radio is switched on. The CPU will start an auto test 
as follows: 
•  LED will glow GREEN, then RED and turn OFF. 
•  LCD will display all segments and icons. The letters PS(PASS) will be displayed followed by a 
long beep. 
•  LCD will display the last operating mode. 
 The self-test goes very fast. 
2)  After the auto test has been carried out LCD will show the following data: 
• The channel number.  (2 numeric characters).
  
 NOTE: About 0.5 second after you select a new channel or change operation mode, the last status 
is automatically saved. When the Radio is turned on, the most recently used channel is displayed. 
 NOTE: the following icons will be displayed depending on the operating mode. 
•  The currently selected TX output power: LOW for low or nothing for high in the lower left corner of 
the LCD. 
•  A small “•” is displayed in the lower right corner of the LCD if the channel is in the SCAN list. (if 
enabled) 
• A “P” is displayed to show that the channel is in the priority Scan list. ( if enabled) 
• “SAT” in the upper left corner indicates that the channel is a GROUP CHANNEL (for CTCSS or 
DCS tone if enabled). 
• “Battery” icon when visible indicates battery is low. 
• “VOX” is displayed when “VOX” function is enabled. 
• A “Key” icon to indicate that the keypad is locked. 
 NOTE: When “VOX” is enabled, ““PTT”” button is not working. 
 NOTE: When keypad is locked; only “PTT” button is enabled (with exception of VOX enabled).  
To switch the radio off, rotate the PWR/VOL knob counterclockwise. 
Adjusting volume 
The PWR/VOL knob is used to adjust the RX volume: turn it clockwise to increase or counterclockwise to 
reduce it.   
						

							75-440 User manual 
Page. 13
Channel selection 
Each channel is identified by 2 numeric digits. The FCC assigned GMRS channel frequencies are 
programmed into your radio as shown in the table below.  Channels 1 through 7 are shared with FRS 
radios. 
Channel 
(FRS Ch.) Freq. MHz.  Channel  Freq. MHz. Channel 
(Duplex) Freq. MHz. 
Tx/Rx 
1 462.5625  8 462.5750 16 467/462.5750
2 462.5875  9 462.6250 17 467/462.6250
3 462.6125 10 * 462.6750 18 467/462.6750
4 462.6375 11 462.5500 19 467/462.5500
5 462.6625 12 462.6000 20 467/462.6000
6 462.6875 13 462.6500 21 467/462.6500
7 462.7125 14 462.7000 22 467/462.7000
  15 462.7250 23 467/462.7250
* GMRS Emergency Channel (10) 462.675 MHz. 
To select a channel: 
1) Press the 
 key to increase the channel number or the  key to decrease it. 
Receiving 
Your radio can be programmed to work, channel by channel, in “Open traffic” or “GROUP MODE 
(CTCSS/DCS)”.  Group mode prevents other users of a channel from being heard on your radio.  See 
“Setting Group Mode Codes” for programming instructions. 
• OPEN TRAFFIC: in this case you will hear all communication which will be transmitted on the 
selected channel. When a message is received your squelch will un-mute, you will see the status LED 
glowing green and you will hear the message. 
• GROUP MODE: 
• CTCSS/DCS (Continuous Tone Code Squelch System / Digital Coded Squelch): are systems 
which use particular TX signaling as an access “key” to work a repeater (encoder) or to unlock the 
party’s signaling sensitive squelch. This last condition allows more radio networks to share the 
same frequency. In this case you will receive only messages coming from parties sending a 
proper TX signaling. During “CTCSS/DCS” operation, the radio may be set-up so that the 
appropriate CTCSS/DCS decoder enables the speaker.  
, CTCSS/DCS If more than one station is transmitting at the same time, this will cause 
interference! Do not transmit if the status LED is glowing. Wait until the channel is clear before 
transmitting. 
Monitor Button 
The Monitor button can enable or disable “GROUP MODE (CTCSS/DCS)” if programmed for that channel.  
1) To enable “GROUP MODE”. Press and release the“MON” button: “SAT” icon is displayed. A Sub 
Audible Tone mutes your speaker.   
						

							75-440 User manual 
Page. 14
2) To Disable “GROUP MODE”. Press the “MON” button: “SAT” icon is not displayed. You are now 
working in “Open Traffic”. 
 
 NOTE:  if “SAT” icon is never displayed, “CTCSS/DCS” tone is not programmed. “GROUP 
MODE” function is not available.   See ‘Setting “Group Mode” codes’. 
 
3)  Press and Hold “MON” button for three seconds, internal squelch will be disabled and your speaker is 
un-muted. Press and release the “MON” button to restore the squelch to normal operating condition. 
Transmitting 
 
1) Ensure that the channel is not busy otherwise you will create interference. 
2) Press the “PTT” button, the status LED will glow red. 
3)  Start talking at a normal voice level at approximately 2.5 inches from the microphone (keep the 
“PTT” button pressed). 
4)  When you have finished talking, release the “PTT” button. 
 Do not shout! It will not increase the distance you can transmit, but rather will make you heard 
distorted. 
 Do not release the “PTT” button before your message is over or start talking before pressing 
“PTT”, otherwise your message will be “chopped”. 
 A GMRS handheld radio does not normally allow you to talk and receive simultaneously, for this 
reason make your messages short. When you are talking the other parties can not use the channel! 
Use common sense. 
 Your radio is programmed with a timeout timer which will automatically turn off the transmitter if 
you talk longer than 90 seconds. In this case release the “PTT” and wait for few seconds, the radio 
TX features will be automatically restored.  
Adjusting Transmit Power 
Your 75-440 can transmit with two power levels according to the distance of your party’s station(s). We do 
recommend, when possible, to use the Low power setting. This will increase the battery life and will 
reduce the risk of interference with other stations not in your radio network that may be sharing the same 
channel with you. 
1)  To change the channels Power Output level from high (2 Watts) to Low (0.5 Watt), or vice versa, 
Press and Hold “FUNC” key for about 2 seconds. A small LOW will appear in the lower left corner 
of the display to indicate “Low Power”. High Power has no indicator. 
 
 If the battery icon is blinking (Low Battery indication), the Unit will automatically switch to Low 
Power when transmitting in order to help prolong the Batterys operational life. In this case, two 
short beeps will be heard when you press the “PTT” key before the radio transmits.  
						

							75-440 User manual 
Page. 15
Scanning channels 
Your 75-440 has three types of scanning available. The most used is Normal Scan. This allows you to 
scan all the channels you have designated in your scan list (see Creating Scan List). The next is scan with 
a Priority channel (channel 1). This scan allows you to monitor channel 1 more often than the other 
channels while scanning (for this scan to work properly you must have at least 6 channels in the scan list). 
The third scan type is Dual Watch. This allows you to scan the priority channel and a channel of your 
choice. You must have more than one channel programmed in the scan list in order for your 75-440 to 
scan them. The advanced scan function of the radio allows optionally looking for carrier or carrier with 
“CTCSS” or “DCS.”  
Activating, Deactivating Normal Scan 
1) Press the “CALL” button + 
 key. You will see the channel numbers cycling continuously.  
2)  To stop scanning press the “CALL” button + 
 key. 
, If when deactivating Normal scan you press the “CALL” button +  key, the radio will be in 
Priority scan. If you press the “CALL” button + 
 key to deactivate the Normal scan the radio will 
now be in Dual Watch (as described later). In this case to deactivate both scans you must first press 
the “CALL” button + 
 then press the correct buttons “CALL” button +  key.  
Reviewing the Scan-List.  
1)  Scroll the channel list, channels which show the “•“ icon, are in the “SCAN” list. 
2)  Select the channel, which is to be added or deleted from the “Scan” list. 
 Adding and removing channels from the Scan list is not available during scanning. 
3) Press “CALL” + “MON” button, the “•” icon will appear or disappear. (See step 1 above.) 
 NOTE: If the Scan List has no channels, a low tone (error beep) will be heard when the “CALL” 
+ 
 key is pressed, no channel will be scrolled in the display. At least two channels must be in 
the Scan List for the Unit to be put in the SCAN  Mode. 
 When a signal is received on a channel, the radio will stop scanning and the speaker will become 
un-muted. When the activity on that channel ceases, the unit will automatically resume scanning.  
 If CTCSS/DCS have been previously programmed, the scanning will stop only if the received 
carrier has the correct CTCSS or DCS code for that channel. 
 If “PTT” is pressed during scanning, the radio will transmit on the first vacant channel. In case of no 
activity, the Unit will automatically resume scanning. 
Selecting a Priority Channel 
One channel can be assigned as a “Priority Channel”. The scanning will look back at the priority channel 
most frequently.  Channel 1 is factory set as the priority channel. 
 Current radio version only allows for PC programming of another priority channel.   
Using a Priority Channel 
1)  To activate Priority channel, press the “CALL” + 
 key.  A P will be displayed in the lower 
right corner of the display to confirm your selection. 
Activate scan by pressing “Call” + 
 key. . (For this scan to work properly you must have at least 6 
channels in the scan list.)  
						

							75-440 User manual 
Page. 16
2)  Deactivate scan by pressing “Call” +  to remove the Priority channel then press “Call” + to 
stop the scan. 
Selecting Dual Watch 
1.  Choose the second channel you wish to use.  Press the “CALL” + 
 key to activate the Priority 
channel.  A P will be displayed in the lower right corner of the display to confirm your selection. 
2.  The radio will scan the chosen channel and the priority channel (usually channel 1). 
Radio lock 
Your 75-440 has been provided with a security function, which protects it against accidental activation of 
commands. You can lock the radio as follows: 
To lock the radio: 
1) Press the “FUNC” key + 
 key.  The display will show the key icon. 
To unlock the radio: 
1) Press the “FUNC” key + 
 key. 
 When the radio is locked only the “PTT” button is enabled.  
						

							75-440 User manual 
Page. 17
Advanced Operations 
In this section we’ll describe some advanced operation which you can do with your handheld transceiver: 
Handsfree Transmit (VOX) 
VOX (Voice Operated Transmit) is an automatic system, which allows you to automatically switch the 
transmission in hands free mode just by speaking in the built-in microphone of a headset (not provided 
with the unit). Please ensure that the handset is suitable for your transceiver as reported in the paragraph 
“Microphone connection”.  
1) Connect the optional headset with built-in microphone to the microphone connector located on the 
transceiver’s side. Be sure the headset is equipped for “VOX” operation. 
2) To activate “VOX”: Turn the radio off. Press and hold the “FUNC” + 
 keys turn the radio on. 
“VOX” icon will be displayed. 
3)  Ensure that the headset’s built-in microphone is located close to the side of your mouth. 
4) Press the “FUNC” key + 
 key to adjust the “VOX” sensitivity in order to ensure a stable 
transmission when speaking with a normal voice level. 
 “VOX” icon will flash when LOW sensitivity is selected and on steady when HIGH sensitivity is 
selected. 
, We recommend setting the “VOX” for minimum sensitivity. Sensitivity set too high could cause 
accidental transmissions, especially in high noise environments. 
 “PTT” button is disabled during VOX. 
5) To DEACTIVATE “VOX”: Turn off the radio. Press and hold the “FUNC” +  
 keys. Turn the 
radio on. The “VOX” icon will no longer be displayed. The “VOX” is now off.  
Paging Call 
User can alert radios of his fleet by pressing the “CALL” button. The other parties will hear a ringer type 
sound.  
To send an automatic “CALL”: 
1) Press the “CALL” key for about 2-sec. to alert all the radios in your fleet. 
2)  A ringer type sound will advise the other parties about the incoming message. 
3)  Press the “PTT” and Speak with a normal voice level to send the message.  
						

							75-440 User manual 
Page. 18
Roger Beep 
A roger beep will be heard by the other party when “PTT” button is released.  
To enable or disable Roger Beep “FUNC”: 
Press the FUNC + CALL” keys. 
Key Beep 
A beep is heard by the user when any key is pressed with the exception of the “PTT” button. 
To enable or disable Key Beep: 
Press the “FUNC” key + “MON” button. 
Setting “GROUP MODE” (CTCSS/DCS) codes 
To SET CODES”: Turn off the radio. Press and hold the “ and   keys. Turn the radio on. 
•  Select the channel with the “
 and   keys. 
• Press the “FUNC” key to switch the display to TX/RX CODE numbers. 
• Press 
 or   keys to select the desired code.  The number is displayed in HEX 
format.  Refer to the table below. 
• Press the “FUNC” key to confirm your selection. 
•  Return to selecting the channel for more programming or turn off the radio to quit copde 
setting. 
Table: Tone Code vs CTCSS/DCS 
 
NUMBER   DISPLAY  CODE         TYPE 
      0 
0 NO TONE    NONE 
1 1 67.0 Hz  CTCSS 
2 2 71.9 Hz  CTCSS 
     3 
3 74.4 Hz  CTCSS 
4 4 77.0 Hz  CTCSS 
5 5 79.7 Hz  CTCSS 
6 6 82.5 Hz  CTCSS 
7 7 85.4 Hz  CTCSS 
8 8 88.5 Hz  CTCSS 
9 9 91.5 Hz  CTCSS 
10 A 94.8 Hz  CTCSS 
11 b 97.4 Hz  CTCSS 
12 C 100 Hz  CTCSS 
13 d 103.5 Hz  CTCSS 
14 E 107.2 Hz  CTCSS 
15 F 110.9 Hz  CTCSS 
16 10 114.8 Hz  CTCSS 
17 11 118.8 Hz  CTCSS 
18 12 123.0 Hz  CTCSS 
19 13 127.3 Hz  CTCSS 
20 14 131.8 Hz  CTCSS 
21 15 135.5 Hz  CTCSS 
22 16 141.3 Hz  CTCSS 
23 17 146.2 Hz  CTCSS 
24 18 151.4 Hz  CTCSS 
25 19 156.7 Hz  CTCSS 
26 1A 162.2 Hz  CTCSS 
27 1b 167.9 Hz  CTCSS 
28 1C 173.8 Hz  CTCSS 
29 1d 179.9 Hz  CTCSS 
30 IE 186.2 Hz  CTCSS 
31 IF 192.8 Hz  CTCSS 
32 20 203.5 Hz  CTCSS 
33 21 210.7 Hz  CTCSS 
34 22 218.1 Hz  CTCSS 
35 23 225.7 Hz  CTCSS 
36 24 233.6 Hz  CTCSS 
37 25 241.8 Hz  CTCSS 
38 26 250.3 Hz  CTCSS 
39 27 69.3 Hz  CTCSS 
40 28 159.8 Hz  CTCSS 
41 29 165.5 Hz  CTCSS 
42 2A 171.3 Hz  CTCSS 
43 2b 177.3 Hz  CTCSS 
44 2C 183.5 Hz  CTCSS 
45 2d 189.9 Hz  CTCSS 
46 2E 196.6 Hz  CTCSS  
						

							75-440 User manual 
Page. 19
47 2F 199.5 Hz  CTCSS 
48 30 206.5 Hz  CTCSS 
49 31 229.1 Hz  CTCSS 
50 32 254.1 Hz  CTCSS 
51 33  023   DCS 
52 34  025  DCS 
53 35  026  DCS 
54 36  031  DCS 
55 37  032  DCS 
56 38  036  DCS 
57 39  043  DCS 
58 3A  047  DCS 
59 3b  051  DCS 
60 3C  053  DCS 
61 3d  054  DCS 
62 3E  065  DCS 
63 3F  071  DCS 
64 40  072  DCS 
65 41  073  DCS 
66 42  074  DCS 
67 43  114  DCS 
68 44  115  DCS 
69 45  116  DCS 
70 46  122  DCS 
71 47  125  DCS 
72 48  131  DCS 
73 49  132  DCS 
74 4A  134  DCS 
75 4b  143  DCS 
76 4C  145  DCS 
77 4d  152  DCS 
78 4E  155  DCS 
79 4F  156  DCS 
80 50  162  DCS 
81 51  165  DCS 
82 52  172  DCS 
83 53  174  DCS 
84 54  205  DCS 
85 55  212  DCS 
86 56  223  DCS 
87 57  225  DCS 
88 58  226  DCS 
89 59  243  DCS 
90 5A  244  DCS 
91 5b  245  DCS 
92 5C 246 DCS 
93 5d 251 DCS 
94 5E 252 DCS 
95 5F 255 DCS 
96 60 261 DCS 
97 61 263 DCS 
98 62 265 DCS 
99 63 266 DCS 
100 64 271 DCS 
101 65 274 DCS 
102 66 306 DCS 
103 67 311 DCS 
104 68 315 DCS 
105 69 325 DCS 
106 6A 331 DCS 
107 6b 332 DCS 
108 6C 343 DCS 
109 6d 346 DCS 
110 6E 351 DCS 
111 6F 356 DCS 
112 70 364 DCS 
113 71 365 DCS 
114 72 371 DCS 
115 73 411 DCS 
116 74 412 DCS 
117 75 413 DCS 
118 76 423 DCS 
119 77 431 DCS 
120 78 432 DCS 
121 79 445 DCS 
122 7A 446 DCS 
123 7b 452 DCS 
124 7C 454 DCS 
125 7d 455 DCS 
126 7E 462 DCS 
127 7F 464  DCS 
128 80 465  DCS 
129 81 466  DCS 
130 82 503  DCS 
131 83 506  DCS 
132 84 516  DCS 
133 85 523  DCS 
134 86 526  DCS 
135 87 532  DCS 
136 88 546  DCS 
137 89 565  DCS 
138 8A 606  DCS 
139 8b 612  DCS 
140 8C 624  DCS 
141 8d 627  DCS 
142 8E 631  DCS 
143 8F 632  DCS 
144 90 654  DCS 
145 91 662  DCS 
146 92 664  DCS 
147 93 703  DCS 
148 94 712 DCS 
149 95 723 DCS 
150 96 731 DCS 
151 97 732 DCS 
152 98 734 DCS 
153 99 743 DCS 
154 9A 754 DCS 
  
						

							75-440 User manual 
Page. 20
Battery Packs 
Information on rechargeable batteries 
•  When the battery pack is new it will not provide 100% of its efficiency. To reach the full battery run 
time you have to “run-in” the battery with at least 3-4 deep charging/discharging cycles. After that 
it will reach its maximum capacity. Please see “Proper charging of battery packs” for further 
details. 
•  When you properly use the battery pack, you will obtain about 400 charge/discharge cycles (300 
with the optional rapid charger). The battery “run time” will progressively reduce after 2/3 of its life 
(approx.).  
•  Rechargeable battery packs lose their charge with time if left unused (self-discharge), this is 
normal. A NiMH (Nickel Metal Hydride) battery can reduce 10 to 20% of its stored energy in few 
days. 
Proper charging of battery packs 
1)  Ensure that the radio is switched off, 
5)  Insert the radio into the cradle as explained in the paragraph “Charging the battery pack”  
6)  Wait the necessary time to provide a full charge. If the pack isn’t completely discharged you will need 
less than 8 hours. 
, Do not overcharge the battery: always remember to remove the radio after the necessary time. 
, The battery charger is for indoor use only. 
 When possible, charge the battery only when it is fully discharged or, at least, you have used it for 
the major part of the day, otherwise the battery’s “run time” could be temporarily reduced.  
 Do not remove the radio before the necessary time, otherwise the battery’s “run time” could be 
temporarily reduced. 
•  When possible charge battery packs only when they are completely discharged, i.e. when the 
battery icon has no bars inside. 
•  Do not remove the battery from the charger before the necessary time to provide a full charge. 
•  Provide at least two deep charge/discharge cycles per month. 
Warnings for battery and chargers use 
Please use these cautions to avoid damaging battery packs or the transceiver: 
, Before using the battery charger carefully read any related warning or caution. 
, Do not short battery terminals: this may cause fire, burns or explosions. 
, Never dispose batteries into fire they may explode causing fire, burns or explosions. Strictly 
follow any disposal regulation of your Country.