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Base Tech IV P25 Base/Repeater Station

 

 

configured for normal digital squelch mode, all signals with 
matching NAC will be heard. If the receiver is configured for 
selective squelch mode, only signals addressed to the proper 
talk group or individual ID will be heard. 

Mixed Receive Operation 

If the radio channel is programmed for mixed receive operation, 
the radio will receive both analog and P25 digital signals. The 
receiver will automatically switch to the appropriate mode 
depending on which type of signal is detected. Analog and P25 
digital receive operation is as described above. 

Transmitting to Other Radios 

!

 

Before transmitting, the FCC requires you monitor 
the channel to make sure it is clear. Transmitting 
while someone else is transmitting will create 
interference and disrupt both conversations. 

The radio is capable of transmitting both analog and P25 digital 
signals. The radio channel is configured for a default transmit 
mode. The current transmit mode is indicated on the LCD 
display, and by the lit Digital indicator (when digital TX Mode is 
selected). A programmable function button may be set up to 
allow the user to choose the desired transmit mode. Follow these 
steps to transmit to other radios. 

1. 

Check that the radio is in the desired transmit mode. 

2. 

Monitor the channel by pressing the programmed function 
button. Channel activity is also indicated by the lit Busy 
indicator. 

3. 

If the channel is clear, press and hold the push to talk (PTT) 
switch on the side of the microphone. 

4. 

The Transmit indicator will light while the radio is 
transmitting. 

5. 

Hold the microphone approximately 2 inches from your 
mouth and speak across the face of the microphone in a 
clear, normal voice. 

©

 2013, Midland Radio Corporation http://www.midlandradio.com

 

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Summary of Contents for 94-3110B

Page 1: ...Operator s Manual Base Tech IV Series 94 3110B 110 Watt VHF P25 Base Repeater Station 94 4100B 100 Watt UHF P25 Base Repeater Station Perspective picture here www midlandradio com...

Page 2: ...d 1310 NOTICE The AMBE 2 voice coding Technology embodied in this product is protected by intellectual property rights including patent rights copyrights and trade secrets of Digital Voice Systems Inc...

Page 3: ...t Panel 6 Rear Panel 7 Backlit LCD Details 7 Setup 8 Unpacking 8 Installation 8 Basic Operation 9 Turning the Radio On and Off 9 Channel Selection 9 Receiving Transmissions from Other Radios 9 Transmi...

Page 4: ...tice Every effort has been made to ensure that the information in this document is complete accurate and up to date Midland assumes no responsibility for the results of errors beyond its control The m...

Page 5: ...SS codes are programmable per channel In addition a custom CTCSS tone frequencies and a custom CDCSS are programmable 5 A busy channel lockout feature is programmable An override function is available...

Page 6: ...eiver off 6 2 LED power indicator 3 Multi function rotary encoder This knob is used for volume channel squelch and backlight adjustments Press to step through the available functions Rotate to change...

Page 7: ...ar panel picture here 3 5 6 7 8 9 4 1 DB25 expansion connector 2 RJ45 tone remote E M connector 3 Ethernet connector 4 Remote switch 5 Type N receiver input connector 6 External reference input connec...

Page 8: ...installation and FCC RF exposure guidelines This transceiver should be connected to a 12VDC power supply capable of 20 amps More complete installation instructions are available in the corresponding...

Page 9: ...s displayed While the channel is being displayed rotate the rotary encoder knob to select the desired operating channel Please consult your dealer or communications coordinator regarding channels prog...

Page 10: ...he same time this will cause interference Do not transmit if the Busy indicator is lit Wait until the channel is clear before transmitting Digital Receive Operation When a P25 digital transmission is...

Page 11: ...nd disrupt both conversations The radio is capable of transmitting both analog and P25 digital signals The radio channel is configured for a default transmit mode The current transmit mode is indicate...

Page 12: ...imer which will automatically end your transmission after a preset time In this case release PTT and wait for a few seconds The radio transmitter will be enabled again after a few seconds Ask your dea...

Page 13: ...25 Call Mode Press and release this button to toggle the P25 call mode While in group call mode the radio will transmit normal group calls with the programmed talk group While in individual call mode...

Page 14: ...Mode Press and hold for two seconds to activate the emergency function The configured emergency action will be performed Keylock Press and hold for two seconds to lock all other front panel keys Press...

Page 15: ...Base Tech IV P25 Base Repeater Station Message Display Quick Reference Error Codes Display Description 2013 Midland Radio Corporation http www midlandradio com 15...

Page 16: ...ability 1 5 ppm 30 to 60 C 1 5 ppm 30 to 60 C 12 dB SINAD sensitivity 0 3 V 0 3 V Selectivity 80 dB 80 dB Intermodulation rejection 85 dB 85 dB Spurious rejection 100 dB 100 dB Hum and noise analog di...

Page 17: ...llation of the product Midland shall have no obligation to make repairs or to cause replacement required which results from normal wear and tear or is necessitated in whole or in part by catastrophe f...

Page 18: ...his radio operates in FCC regulated frequency bands All radios must be licensed by the FCC before use Because this radio contains a transmitter Federal law prohibits unauthorized use or adjustments of...

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