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7

Controls and Functions

Microphone Jack

 - Allows attachment of standard, DTMF or base

station microphone.

On/Off/Volume Control

 - Allows the radio to be powered off and on

and the volume to be adjusted.

Up/Down Select Key

 - Allows selection of channels.

Scan Key

 - Allows automation of scan function.

Monitor Key

 - Allows channel monitoring before transmit.

L/O

 - Allows channels to be added to or removed from the scan list.

A/B/C

 - Option keys programmable for any of seven functions.

14

Function Disable Tone

 - two short low tones indicating that

the key function has been turned off.

No Function Tone 

- a low/high/low/high tone sequence

indicating the key function is not allowed.

Down Channel Tone

 - a short low tone occurring at every

down channel change.

PTT Error Tone

 - a low tone sounding as long as the PTT is

held, if transmit is not allowed on the selected channel.

BCLO Tone

 - alternating high/low tones sounding as long as

PTT is held if the channel is busy.

TOT Caution Tone

 - short high pitch beeps sounding every

second, beginning 5 seconds before transmitter shutoff occurs.

TOT Error Tone

 - a high pitch tone sounding as long as the

PTT is held, after TOT has occurred.

Priority Tone

 - a short high pitch beep sounding during scan

when the Priority Channel is received and when the
programmed Priority Channel is selected.

Telephone Interconnect Functions

Phone Book

 - Any of 10 pre-stored memory numbers can be recalled

by the A/B/C quick keys. Press the A/B/C key to display the first
number, then press again as many times as necessary to recall the
desired number. When PHONE BOOK is displayed, press the UP/
DOWN keys to scroll through the programmed numbers until the
desired one is displayed. Press PTT to access dial tone on an
interconnect repeater, then press PTT again to transmit the number.
Numbers with more than 10 digits will automatically scroll to display
the last 10 characters.

DTMF Redial - The A/B/C quick keys may be programmed to recall
the previously displayed Phone Book number for redial. To use this
function, access dial tone on an interconnect repeater as described
above, then press the A, B or C key and hold for 2 seconds. The last
transmitted Phone Book number will be displayed and can be
transmitted by pressing PTT.

Summary of Contents for SMH250D

Page 1: ... Guide RELM WIRELESS CORPORATION 7100 Technology Drive West Melbourne FL 32904 ULZZ01101ZZ 7100 Technology Drive West Melbourne FL 32904 2000 RELM Wireless Corporation All Rights Reserved W I R E L E S S C O R P O R AT I O N ...

Page 2: ...ching or close to the eyes faces or exposed body parts DO NOT operate the transmitter of any radio equipment unless all the Radio Frequency RF connectors are secure and any open connectors are properly terminated DO NOT operate the transmitter of any radio equipment near electrical blasting caps or in an explosive environment DO NOT let children operate any transmitter equipped radio equipment Hav...

Page 3: ...t BCLO 12 A B C Key Functions 12 Function Tones 13 Telephone Interconnect Functions 14 Radio Installation Considerations 15 Power Requirements 15 Antenna 15 Mounting 15 Operational Check 16 Accessories 16 Technical Support and Service 16 Two year Limited Warranty 17 18 Registration Card is returned on the condition that other evidence satisfactory to Uniden of the date of the original installation...

Page 4: ...and workmanship Equipment and accessory items not manufactured by RELM carry the standard warranty of the manufacturer thereof WARRANTY DURATION The warranty period for all parts is two 2 years The warranty period shall commence upon installation of the equipment or two 2 months from the date of shipment from the factory whichever comes first The warranty shall terminate and be of no further effec...

Page 5: ... a complete operational check by your Uniden Dealer will assure you of a quality installation Accessories Standard Microphone AMX100A DTMF Encode Microphone AMX101A Heavy Duty Microphone AMX105A Mobile Power Cord w Fuse 15A AMX120A Base Station Microphone AMX151 External Speaker 4 ohm 10 Watt AMX250 110VAC Power Supply with built in speaker ST14P1001 220VAC Power Supply with built in speaker ST14P...

Page 6: ...rotect the power source compartment and passenger compartment from fire and electrical hazards The AMX 120A Power Cable is equipped with an in line 15 ampere fuse If the radio is connected directly to the vehicle battery a fuse must be installed as close to the battery terminal as possible Route power leads to minimize proximity to other electrical systems such as instruments engine electrical com...

Page 7: ...inning 5 seconds before transmitter shutoff occurs TOT Error Tone a high pitch tone sounding as long as the PTT is held after TOT has occurred Priority Tone a short high pitch beep sounding during scan when the Priority Channel is received and when the programmed Priority Channel is selected Telephone Interconnect Functions Phone Book Any of 10 pre stored memory numbers can be recalled by the A B ...

Page 8: ... may be programmed for this function TX Disable inhibits the transmit function when active To disable transmit press and hold the key far at least 1 5 seconds The LCD TX DISABLE display appears and the Disable Tone sounds Transmit on all channels will be inhibited when activated Press and hold again for at least 1 5 seconds to enable normal transmit operation Squelch Level Select allows control of...

Page 9: ... Lockout BCLO The radio may be programmed to inhibit transmit while a signal is being received If so an error tone will sound if PTT is pressed while the channel is busy BCLO may also be programmed to allow transmit to occur if you are receiving a signal from someone in your system allowing you to maintain control of a repeater during your conversation A B C Key Functions The A B and C keys can be...

Page 10: ...or to select the desired channel 11 and press SC The channel display increments to the next higher channel The LCD L O indicator appears as the first character of the channel designator when the locked out channel is reselected Nuisance channels may also be deleted while scan is active by pressing the L O button while receiving the channel or during the delay after the signal is gone but before sc...

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