Midland 75-509 User manual

Model 75-509
Owner’s Guide

2
OPTIONAL ACCESSORIES FOR YOUR RADIO........................................2
TIPS FOR GETTING THE MOST FROM YOUR 75-509.......................................4
PREPARATION........................................................................................4
BATTERIES.............................................................................................................4
To Install Batteries:..................................................................................................4
Low Battery Indicator:..............................................................................................4
Instructions for optional charger...............................................................................4
BELT CLIP...............................................................................................................5
QUICK USE INSTRUCTIONS:...................................................................5
TO OPERATE THE HANDS FREE VOX.....................................................5
POWER SAVE CIRCUIT........................................................................... 6
FEATURES AND LOCATIONOF CONTOLS..............................................7
TO TURN THE RADIO ON OR OFF......................................................................7
TO CHANGE THE CHANNEL IN USE..................................................................7
TO SCAN THE CHANNELS...................................................................................7
TO SET UP DUAL WATCH....................................................................................7
TO USE CALL BUTTON.........................................................................................7
TO ENABLE/DISABLE “ROGER-BEEP”..............................................................7
TO ADJUST THE VOLUME ...................................................................................7
TO ENABLE / DISABLE KEY BOARD LOCK......................................................7
TROUBLESHOOTING..............................................................................8
Cannot Receive Messages ........................................................................................8
Range is Short...........................................................................................................8
Interference/Static.....................................................................................................8
CARE OF RECHARGEABLE NI-CAD AND NI-MH BATTERIES ................... 8
SERVICE:................................................................................................9
CHANNEL FREQUENCIES...................................................................... 10
LIMITED WARRANTY............................................................................ 11
OPTIONAL ACCESSORIES FOR YOUR RADIO
Accessory Name Model Number
Standard Ni-Cad Charger ………………………………………..18-396
Ni-Cad batteries ...........................................(Three Required)....18-Batt
Desk Charger stand……………………………………………….18-383
Dual Desk Charger stand………………………………………….18-385
Lapel Microphone with Earbud Speaker………………………….22-405*
Speaker/Microphone……………………………………………...22-411*
Stealth Type Noise Canceling Throat Mic with Earbud…………..22-430*
BoomMicrophone Headset ……………………………………….22-540*
Call 1 816 241 8500 ext. 200 to order accessories

3
THIS RADIO COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS
SUBJECT TO THE CONDITION THAT THIS DEVICE DOES NOT CAUSE
HARMFUL INTERFERENCE.
Your Midland model 75-509 brings the new FRS (Family Radio Service) to your
fingertips. The Family Radio Service is provided for by the FCC and is totally license
free. For the first time business and the general public can use the quiet UHF FM band
for personal communications at no charge. The 75-509 uses maximum allowable
power for range up to 2 miles. Use for fishing, hunting, picnics, biking, business, or
any other activity where communications are needed for convenience or safety. The
model 75-509 operates on 14 channels to provide the best in quiet and private
communication. Also this radio offers power save, and auto-squelch.

4
TIPS FOR GETTING THE MOST FROM YOUR 75-509
Due to the band of operation (462/467 MHz) the 75-509 provides communications that
are virtually free of atmospheric interference (skip) that is common on lower
frequency bands. Along with this and an antenna system that is very efficient as
compared to other unlicensed radio bands, communications range is surprisingly good.
Many times the limits to maximum possible range are environmental factors such as
blockage caused by trees, buildings, hills, or other obstructions. If you find
communication is not possible, many times this can be overcome by moving only a few
feet to a new location. Range may be reduced while operating in a vehicle or from
inside to outside a metal building. Battery condition also affects range. The 75-509
operates best on alkaline batteries. While this unit has been designed with gaskets for
water resistance and ruggedness it is a precision piece of electronic equipment that
should not be exposed to water or handled carelessly. Normal care should result in
years of trouble free operation. Do not leave batteries installed over a long period of
time as leakage may occur that candestroythe radio. Always save your receipt, as it is
required for warranty consideration.
.
PREPARATION
BATTERIES
75-509 radios operate with 3 AA Alkaline, Ni-Cad (nickel cadmium) or Ni-MH
(nickel metal hydride) batteries (optional). Ni-Cad batteries provide about 15 hours of
use. Alkaline batteries will provide about 45 hours of use and Ni-MH batteries will
provide about 24 hours of use. If the 75-509 is supplied with Ni-Cad batteries and a
wall charger. Ni-Cad batteries must be charged prior to use. Charge at least 10 hours
with the standard charger. If you are using Ni-MH batteries charge at least 16 hours.
DO NOT attempt to charge any type of Alkaline batteries inthis radio.
To Install Batteries:
Hold the radio face down. Press the latchso it swings away fromthe cover.
1. Lift the battery cover slightly. Gently slide the cover off the unit.
2. Insert 3 AA batteries observing the proper polarity.
3. Replace the battery cover over the batteries and fastenwith the latch.
Low Battery Indicator:
The batteryiconinthe lower left of the display will flashwhenthe batteries are in
need of charging.
Instructions for optional charger
Install NI-Cad (nickel cadmium) batteries observing their polarity. Plug the 18-396
charger into any 110/115 V wall socket. Plug the cord into the jack on the
bottom of the radio under the rubber plug marked “CHG”. Charge the
batteries for at least 10 hours.
DO NOT attempt to charge any type of Alkaline batteries inthis radio.

5
BELT CLIP
The 75-509 comes standard with a belt clip. Attach it to the radio back by sliding the
top of the clip up over the two rectangular bosses on the back of the radio until it snaps
into place. To detach the belt clip, press the lever inside the top of the clip away from
the radio body and slide the clip toward the bottom of the radio.
QUICK USE INSTRUCTIONS:
1. Install fresh alkaline or fully charged Ni-Cad or Ni-MH batteries.
2. Turn the unit on by turning the volume control clockwise.
3. Choose PTT or VOX transmit control with the button on the front of the radio.
4. To talk press the PTT (push to talk) button on the left side of the radio and talk
in a normal voice into the front of the radio about three inches away fromyour
mouth.
5. To use “VOX” press and hold the “VOX” button for 1 second and talk into the
front of the radio or the headset microphone. (head set is recommended)
6. To listen release the PTT button. If in VOX stop talking.
7. Volume and other functions may be adjusted as described later
TO OPERATE THE HANDS FREE VOX
(VOICE OPERATED TRANSMIT)
To get the most use fromthe “VOX” feature you must first detrmine what sensitivity
level is needed to activate the “VOX” control. Sensitivityis how loud you have to talk
to activate the “VOX” circuit. The “VOX” has three levels of sensitivity that canbe
adjusted. The 1 option you can talk in a normal voice with no background noise to
activate the “VOX” circuit. The option 2 will require more voice level to activate the
“VOX” circuit. This is useful in slightly noisier areas that might activate the “VOX”
without talking. The option3 will require the most voice level to activate the “VOX”
circuit. This will be useful in very noisy areas. The next adjustment is the delay. This
is a function of the “VOX” that keeps the radio in transmit mode after you stop talking.
A delaythat is set to short will cause the “VOX” circuit to stop betweensome words.
The delay is adjustable to three levels. Level 1 will give about one second of delay,
level three will give youabout three seconds of delay. Byactivating the “VOX” you
only have to talk into the front of the radio or use a headset to make the radio transmit.
The PTT (push to talk) button is not functional in “VOX” mode. It is recommended to
use a headset when using the “VOX” feature.
NOTE: It is recommended to disable the Roger Beep when VOX is in use. See page 5
for instructions.

6
POWER SAVE CIRCUIT
This part of the operation of the radio is completely automatic and not adjustable.
When the radio has not transmitted or received a signal for about 8 seconds it will
begin to cycle from a sleep mode to fully on. This occurs several times a second. If a
signal is received or you cause the unit to transmit the radio will become fullyawake.
This cycling fromsleep to fully on increases the standby battery life more than 50%.

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FEATURES AND LOCATION OF CONTOLS
TO TURN THE RADIO ON OR OFF
The ON/OFF/VOLUME control at the top of the radio controls power and volume. A
series of tones will be heard confirming that radio is working.
TO CHANGE THE CHANNEL IN USE
Press and release the channel button /\ or \/ to select the desired channel. To change
channel rapidly, press and hold the channel button /\ or \/ until the desired channel
appears on the display.
TO SCAN THE CHANNELS
Press the F button. The radio will scanto the next busy channel. Scanning will stop
for about 5 seconds then will continue to the next busy channel. Note: The display
will not shut off inscan mode. To stop scanning, press SCAN again or press PTT or a
channel button.
TO SET UP DUAL WATCH
Select a channel with the channel button /\ or \/ as channel A. Press the DW (dual
watch) button. The displaywill begin to flash. Within5 seconds, select a second
channel as channel B and again press the DW button. (After 5 seconds the radio will
beep three times and revert to normal operation) The radio will switch alternately
between channels A and B. Pressing PTT, DW, /\ or \/ cancels dual watch.
TO USE CALL BUTTON
Press and release the CALLbutton. A call signal will be sent for about 2 seconds.
The signal will also be heard inthe speaker. Both radios must be onthe same channel
and turned on.
TO ENABLE/DISABLE “ROGER-BEEP”
The radio transmits a rapid tone sequence when the PTT button is released if this
feature is active. The default condition is for the “roger beep” to be off.
TO ADJUST THE VOLUME
Use the ON/OFF/VOLUME control to adjust the volume. To test the volume setting,
press and hold the “MON” button so static noise can be heard. The noise can be used
as a reference level for volume setting.
TO ENABLE / DISABLE KEY BOARD LOCK.
To enable the KEY BOARD LOCK press and hold the “ENTER” button for 2
seconds. The display will containa key symbol. PTT, MON , CALLand VOX (if
enabled) will still be active. When radio is in lockmode and anyother keys are
pressed a tone will be heard,. To disable the KEY BOARD LOCK, press and hold the
“ENTER” button for 2 seconds.
TO ENABLE VOX MODE
Press and hold the “VOX” button on the front of the radio. Follow the setup
instructions as described earlier.

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TROUBLESHOOTING
PROBLEM SOLUTION
No Power 1. Check battery installation and/or replace batteries
Cannot Receive Messages 1.Make sure the volume is set high enough.
2. Change your location, you may be out of range.
3. Install batteries properly or replace.
Range is Short 1. Operating the radio in a vehicle or metal building
will decrease the range. If possible operate outside of
vehicles or buildings.
2. Carrying the radio so that the antenna is very near
the body will decrease the range. Hold the radio in the
open for the best range.
3. Battery condition can affect range. Replace or
recharge batteries.
Interference/Static 1. Change your location. The interference may be
caused by nearby electronic or electrical equipment.
CARE OF RECHARGEABLE NI-CAD AND NI-MH BATTERIES
ALWAYS DISPOSE OF BATTERIES PROPERLY
Always follow the battery manufacturers recommendations for charging and disposing
of Ni-Cad and Ni-MH batteries.
The following is meant as general information regarding Ni-Cad/Ni-MH batteries.
.
1. Occasionally allow the batteries to fully discharge before recharging. Full
discharge will be indicated by the low batteryindicator coming onduringreceive
operation.
2. Always allow the battery to fully charge before using. This requires 10 hours with
the approved charger. (Ni-MH batteries require 16 hours for full charge.)
3. The above will prevent the batteries fromdeveloping “memory” whicheffectively
reduces their capacity.
4. It is better to store Ni-Cad batteries that are discharged rather than charged.
Ni-MH batteries are best stored charged.

9
SERVICE:
If you have a problem which you believe requires service, please call first and speak
with a service technician. Many problems can be remedied over the phone without
returning the unit for service.
If it ever becomes necessary to return your unit for service:
♦Pack the unit in its original box and packing. Improper packing may result in
damage during shipment.
♦Include a full description of any problems. Include a daytime telephone number.
♦Include a money order for $7.50 to cover shipping and handling (this may not be
required in some states).
!You do not need to return accessory items (charger, batteries, wrist strap,
owners guide) unless they maybe directly related to the problem.
♦Include a photocopyof the bill of sale or other proof of purchase showingthe date
of sale. This information must be included before warranty service can be
considered.
♦A flat rate of $45.00 will applyto repairs not covered by warranty. Send only
cashiers check, money order or Master Card or Visa card number.

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TECHNICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONSTECHNICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONS*
GENERAL
Frequency range..................................................................................462/467 MHz
Channels...............................................................................................................14
Modulation type................................................................................................. FM
Antenna impedance ....................................................................................50 Ohm
Loudspeaker.........................................................................................8 Ohm0.5W
Microphone...................................................................................…...electret type
Power supply..........................................3 AA Ni-cads or Alkaline (3.6/4.5VDC)
RECEIVER
Sensitivity at 12dB Sinad..............................................................................0.25µV
Selectivity........................................................................................................50 dB
Squelch range...................................................................................…....automatic
Audio output power...........................................0.25W @ 8 Ohm (10%distortion)
Distortion at 1000 mV.........................................................................................7%
Audio frequency response.....................................................................400-2400 Hz
TRANSMITTER
RF Output Power...........................................….…….nominal 500 mW @ 4.5VDC
Frequency Tolerance.................................................................................0.00025%
Harmonic Suppression...................................................................more than 50 dB
Modulation......................................................................................FM +/- 2.5 kHz
*Specifications are nominal and subject to change
CHANNEL FREQUENCIES
01=462.5625 05=462..6625 09=467.5875 13=467.6875
02=462.5875 06=462.6875 10=467.6125 14=467.7125
03=462.6125 07=462.7125 11=467.6375
04=462.6375 08=467.5625 12=467.6625

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LIMITED WARRANTY
Midland Consumer Radio Inc. will repair or replace, at its option without
charge, any Midland FRS transceiver which fails due to a defect in material or
workmanship within one year following the initial consumer purchase. This warranty
does not apply to water damage, battery leak damage or abuse.
This warranty does not include any carrying cases, earphones, or antennas
which may be a part of or included with the warranted product, or the cost of labor for
removal or re-installation of the product in a vehicle or other mounting.
Performance of any obligation under this warranty may be obtained by
returning the warranted product, freight prepaid, along with proof of purchase date, to
Midland Consumer Radio Inc., Warranty Service Department, 1670 North Topping
Avenue, Kansas City, Missouri 64120.
This warranty gives you specific legal rights, and you may also have other
rights, which vary, fromstate to state.
Note: The above warranty applies only to merchandise purchased in the United States
of America or any of the territories or possessions thereof, or from a U.S. Military
exchange.
Midland Consumer Radio
1670 N. Topping
Kansas City, Mo. 64120-1224 Printed inKorea
Tel: [phone])
E-mail: [e-mail]
URL: www.midlandradio.com