Operators Manual for the P25 Base Tech III Base/Repeater Station October 2008 Version 5.0 680-090-2042 www.midlandradio.
Introduction We thank you for choosing the Midland P25 Base Tech III Base/Repeater Station to meet your communication needs. Properly used, this product will give you many years of reliable service. To get the most out of your purchase, be sure to carefully read this manual before operating the radio. The overall operation of this radio depends entirely on how it has been programmed. If it is not functioning as desired, please check the programming first.
Table of Contents Page 4 4 5 6 6 7 8 9 10 16 16 17 18 18 19 19 20 20 21 21 22 22 23 23 24 26 28 29 29 30 30 31 31 31 32 33 1. LCD Display 2. LED Display 3. Key Controls 4. Programming 5. Control Knob 6. Channel Selection 7. P25 Calling Selection 8. P25 PTT Mode 9. P25 Conventional Messages 10. P25 Squelch Adjustment 11. Talk Group ID Alias 12. Key lock 13. Manual CWID Start/Stop 14. DTMF Encode 15. Analog Channel Data 16. P25 Channel Data 17. Bar Graph/Channel Display 18. LCD Backlight Toggle 19.
1. LCD DISPLAY 1.1 LCD display consists of 4 x 20 characters as shown. Line 1: The Incoming RSSI with 10 steps Line 2: The output power levels with 10 steps Line 3: The left 4 letters show channel numbers. The middle 8 letters shows the channel name (if not programmed, it will be blank). The right 4 letters displays the status of the radio as described below. a. RX mode: M= Mix, both analog and digital can be received D= Only digital can be received. b.
3. KEY CONTROLS 3.
4. PROGRAMMING The Midland Base Tech III must be programmed with Windows 2000, XP or Vista operating system. The 91-1480CD software and 91-1303B programming cable are required to program the radio and are available through your Midland dealer or LMR Sales Department. Note: During actual data transfer the radio will not operate but should be complete within 30 seconds or less. 5. CONTROL KNOB 5.1 VOLUME Rotate the knob to change the volume level. The volume level varies from 0 to 34.
5.2 SQUELCH CONTROL Push the rotary knob once to select the squelch level and then turn the knob to vary the level from 0 to 15. 0 is open squelch. Figure-4 shows the Squelch at level 6 RX TX C001 TAC 2 MD⌧N Squelch-6 Figure 4 5.3 LCD BACKLIGHT DIMMER Push the rotary knob twice to select the dimmer level and then turn the knob to select a level from 0 to 15, 0 is the darkest. Figure-5 shows the Dimmer at level 5 RX TX C001 TAC 2 MD⌧N Dimmer-5 Figure 5 5.
7. P-25 CALLING SELECTION (Digital Base Mode Only) Press and release A repeatedly to scroll through the menu Radio displays GPC 00001= Group 1 Call, GPC everygroup= All Call, IDC--------- = Individual Call Figure-7 Shows Talk Group Identification (TGID), Group 1 Call Figure-8 shows an All Call (everygroup), to everygroup on the same NAC Figure-9 Shows an Individual Call, to and individual unit ID on the same NAC. (Refer to Section 11, Figure 11 and 12 for ID entry).
7.1 INDIVIDUAL CALL ENTRY (Digital Base Mode Only) Press and release A repeatedly until IDC----- is displayed. Press B, and enter the numerical Unit ID. To deleted a digit, Press the star ( * ) key Press B or # to complete entry. Figure-10 shows entry start, when B is pressed Figure-11 shows completed entry, 1 + 2 + 3 + 4 + 5 + B RX TX C001 TAC 2 MD⌧N IDC __ Figure 10 RX TX C001 TAC 2 MD⌧N IDC 12345 Figure 11 8. P-25 PTT MODE Press D to select PTT (Push-To-Talk), mode.
9. P25 CONVENTIONAL CONTROL SIGNALLING (SBC) (Digital Base Mode Only) Please note: SBC functions are selectable in the Programming Software. The Base Tech III has been developed to work with any P25 radio under the TIA specifications. However not all subscriber radios have the capability of these functions. 9.1 EMERGENCY MODE TXPress and hold the F key to send an EMERGENCY call. (Note: The radio will transmit on the programmed EMERGENCY channel not necessarily the channel that appears on the display.
9.2 CALL ALERTTo send a Call Alert, Press F then Press A or B until the selection is displayed, then enter the target ID of the radio to alert and Press #. If the target radio has received the Call Alert the display should show “ACK” (acknowledgement). Figure 14 displays a Call Alert ACK Call Alert To: 366 MD⌧N Fm: 00000366 (ACK) Figure 14 9.3 RADIO CHECKThe dispatcher can send a message to a subscriber unit requesting a response from the radio (for example, to check if it is in operation).
9.4 RADIO INHIBITThis function is used to disable a subscriber unit (Mobile or Portable). The subscriber unit cannot be turned on at all until an Uninhibit Command is sent. The password must match the password entered in the BTIII program for inhibit to occur. To Inhibit a radio, Press F then Press A or B until the selection is displayed then enter the target radio’s ID. Press D and enter the programmed password, then Press #. The target radio will be totally disabled.
9.6 STATUS UPDATEUsed to send user status. The status numbers relates to an actual message list. Indicates the User status (0-255) and Unit status (0-255). To send a Status Update, Press F then Press A or B until the selection is displayed and enter the target radio ID. Then Press D and enter the User (USR), message number, Press D again and enter the Unit number, then Press #. If the target radio has received the Call Alert the display should show “ACK” (acknowledgement).
9.9 PREDEFINED MESSAGESIs used to send a predefined system message. To send a Predefined Message, Press F then Press A or B until the selection is displayed, then enter the target radio ID, Press D and enter a message number and Press #. The target radio should send and ACK if successful. Figure 20 shows message 2 ready to be sent to 366. Short Message To:366 Message:2 MD⌧N Figure 20 9.10 RADIO MONITORUsed to key up a target radio from 10 to 60 seconds and monitor the transmit audio.
9.11 TELEPHONEUsed to initiate a telephone interconnect request on the RF subsystem. Press F then Press A or B until the selection is displayed, then enter the complete telephone number including country and area code. (max. 16 digits), then Press #. Figure 22 shows the Midland Radio Corporation telephone number. Telephone To:18162418500 MD⌧N Figure 22 9.12 SBC LOGTo toggle the SBC LOG ON, Press SHIFT+F, to turn the LOG OFF Press F. When the SBC LOG is entered, the last SBC call is displayed.
10. P-25 SQUELCH ADJUSTMENT Press SHIFT + MON to choose the P-25 squelch mode. Normal SQL= If NAC is the same, the receiver will unmute Selective SQL= If NAC and GROUP is the same, the receiver will unmute Figure-24 Shows Normal SQ Figure-25 Shows Selective SQ RX TX C001 TAC 2 MD⌧N Normal SQL Figure 24 RX TX C001 TAC 2 MD⌧N Selective SQL Figure 25 11.
12. KEY-LOCK Press SHIFT+8 to enable and disable the Key-lock. This symbol shows on the LCD. Key-Lock and Key-Unlock icon is displayed for 2 seconds and then reverts to show the TGID. The PTT, MON and SHIFT key are not locked If PTT, MON and SHIFT needs to be locked, select DISABLE in the programming software. If the station is to be remotely controlled it is recommended to leave PTT enabled, Remote PTT will not work when PTT is locked. To release key lock, Press SHIFT+ 8 again.
13. MANUAL CWID START AND STOP Press SHIFT + A to manually send the programmed CWID. CAUTION: THE TRANSMITTER WILL ENERGIZE IMMEDIATELY WHEN “A” IS PRESSED! To turn OFF CWID, Press SHIFT + HOLD B for 2 seconds (This disables both programmed and manual CWID) To return to normal operation, either reboot the radio or Press SHIFT+ HOLD B for 2 seconds (CWID must be enabled in programming to use these functions).
15. ANALOG CHANNEL DATA Press SHIFT+7 to scroll through the data. 7 must be depressed to scroll. 1) Rx width (narrow/wide/4kHz) 2) TX width (narrow/wide/4KHz) 3) Base mode (Simplex/Semi-duplex/Duplex/Repeater) 4) Rx CTCSS/DCS, CTCSS and DCS are used in Rx 5) TX CTCSS/DCS, CTCSS and DCS are used in TX 6) TX RX Modulation type either PM or FM (PM is the default) (The INFORMATION DISPLAY selection in the 91-1480CD MISCELLANOUS MENU must be set to ENABLE to display this information.
17. BAR GRAPH/CHANNEL DISPLAY Press SHIFT + CH to eliminate the channel name/bar graph and display the frequencies for TX and RX. Press SHIFT + CH to toggle back. Figure-35 Displays the frequencies instead of channel name. The 1st and 2nd character on line 1 indicates Receive Channel The 3rd character indicates Wide band The 4th character indicates Simplex mode. The modes of operation are: “S” = Simplex, “H” = Semi duplex; “D” = Duplex and “R” = Repeat Line 2, “TXN” indicates TX is Narrow band. RXWS 154.
19. CHANGING TX POWER Press SHIFT+2 to select High or Low TX power. Indicates high power. If the radio is programmed for Hi power, the radio can be changed to low power with this function. If the radio is programmed for low power, it cannot be switched to HI power with this function. The Figure-37 Displays the Hi power symbol. RX TX C001 TAC 2 MD⌧N GPC 00001 Figure 37 20. CALLER ID In Simplex mode the Midland Base Tech III display indicates the source Unit ID or Individual ID.
21. EMERGENCY CALL RECEPTION The 4th line of the LCD shows the Emergency ALM when an emergency call is received. The LCD back light flashes and the audible tone heard from the speaker can be increased or decreased with the volume control. Figure-39 below displays the Emergency Caller's ID 00000366. RX TX Emergency Alm MD⌧N Fm: 00000366 Figure 40 22. REPEAT MODE 21.1 ANALOG If the received CTCSS/DCS matches the programmed CTCSS/DCS, the radio transmits the programmed carrier frequency and CTCSS/DCS.
. BASE MODE 23.1 ANALOG If the received CTCSS/DCS matches the programmed CTCSS/DCS, the radio’s receiver will open. The MON key may be pressed to bypass any tone signaling. 23.2 DIGITAL Matching NAC (Network Access Code); If the programmed NAC/TGID matches the received NAC/TGID, the receiver will open. Pressing SHIFT + MON switches between Selective SQL and Normal SQL mode. $F7E in RX NAC If the NAC is set for $F7E, the radio should receive any incoming NAC. 23.
25. P-25 TEST MODE Press SHIFT+ 0 to put the radio into test mode. Then press the following numbers for the test you wish to perform. 1) Standard transmitter “Test Pattern” 2) Standard transmitter “Symbol Rate” pattern 3) Standard transmitter “Low Deviation” pattern 4) Standard transmitter “C4FM Modulation” Fidelity pattern 5) Standard “Tone Test” - Sends the Standard Tone Test Pattern in TX mode. - Indicates BER (Bit Error Rate) in RX mode.
Low Deviation C001 MD⌧N Figure 44 C4FM Modulation C001 MD⌧N Figure 45 Tone Test C001 MD⌧N Figure 46 Tone Test C001 Error Rate MD⌧N 5% Figure 47 25 www.midlandradio.com Version 5.
. ADJUSTMENT MODES While Grounding TP-2 on the analog logic board, switch the radio on. (See the Midland Base Tech III Service Manual for the TP-2 location) Press # to change selections. Press A (Up) and B (Down) to adjust the level. -RX 0 dBm Out =Rx 0 dBm output level adjustment (At pins 20 & 21 on the EXT OPTION 25 pin D-sub connector).
RXWH TXW RX 0dbm Out C001 25 / 31 MA Figure 48 RXWH TXW RX FX828 MOD1 C001 0 / 31 MA Figure 49 RXWH TXW DIGITAL DEVI C001 27 / 31 MD Figure 50 RXWS TXW ANALOG DEVI C001 19 / 31 MA Figure 51 RXWH TXW TONE DEVI C001 27 / 31 MA Figure 52 27 www.midlandradio.com Version 5.
27. KEY TEST Press and Hold C, switch on the radio. Then depress any key to test. Figure-53 shows initial display Figure-54 shows CH key depressed. Figure-55 shows rotary switch turn clockwise Figure-56 shows rotary switch turn counter-clockwise If no key is pressed for 5 seconds, the radio reboots to normal operation. Please Key - in Figure 53 CH Key Figure 54 RTSW UP Figure 55 RTSW DWN Figure 56 28 www.midlandradio.com Version 5.
28. DISPLAYING THE FIRWARE VERSIONS Both the radio and DSP firmware versions are indicated on the LCD after the radio switches on for 2 seconds, unless a “Starting Message” has been programmed. Figure-57 Displays Radio and DSP Firmware versions <71BSV200A710> Figure 57 Figure-58 Shows the programmable starting message “Your Message Here”. Your Message Here Figure 58 29. DISPLAYING THE SERIAL NUMBER Press and Hold D, turn on the radio, the serial number is indicated. (max 8 digits).
. DISPLAYING THE PROGRAMMING SOFTWARE VERSION Press and Hold A, and turn on the radio, the programming software version is indicated. When the A key is released, the radio will reboot in the normal mode Figure-60 shows V-0.2.3195 version Set by p-kgprg 023195 Figure 60 31. DATA CHECK The Midland Base Tech III has a self diagnostic function. All data in the EEROM is checked every time the radio is switched on.
32. ERROR MESSAGES If there is a problem with the RX PLL, TX PLL or PA, then the ALM LED flashes on and indicates which section has the issue. Figure-49 displays a RX PLL error, Note this may be displayed in REM mode if the remote channel lines are open or a channel is selected remotely that is not programmed. (EXXX will be displayed instead of CXXX, where XXX is the channel number.
35. DSP ERROR DETECTION When there is a problem with the DSP, the following message may be shown on the display. Please check that the DSP board is installed correctly, and the correct firmware version is displayed at startup. Figure-65 shows DSP failure Figure-66 shows DSP not ready Figure-67 shows DSP serial error RX TX C001 MD⌧N DSP Failure Figure 65 RX TX C001 MD⌧N DSP Not Ready Figure 66 RX TX C001 MD⌧N DSP Serial Error Figure 67 32 www.midlandradio.com Version 5.
36. Option Port Pinout 25 pin D-sub connector for remote control is provided on the rear panel of Base Tech III. The functions of each pin are as follows: Pin No.
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