bcd325p2-protocol

BCD325P2 remote command protocol reference. machine-readable specification for the Uniden BCD325P2 scanner serial interface — command formats, primitives, and parameter structures for remote control and automated monitoring.

codename bcd325p2-protocol in this repository.

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Table of Contents

1. Communication Parameters
2. Protocol Syntax
3. Command Index
4. Command Reference
   • Active Control & Monitoring
   • Memory & Programming
5. Appendix A: CTCSS/DCS Codes
6. Appendix B: Hex Font Mapping

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1. Communication Parameters

Configure your serial interface with the following settings:

• BPS Rate: 4800 / 9600 / 19200 / 38400 / 57600 / 115200 bps
• Start/Stop Bit: 1 bit, 1 bit
• Data Length: 8 bit
• Parity Check: None
• Code: ASCII
• Flow Control: None
• Return Code: Carriage Return (\r) only

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2. Protocol Syntax

Base Rules

• Delimiter: , (Comma)
• Terminator: \r (Carriage Return)
• Empty/Reserved: Omitted parameters or [RSV] are sent as empty space between commas (e.g., ,,,).
• Execution Block: Any command must wait for a response from the scanner before the next command is sent.
• Program Mode: All memory access commands are only acceptable in Program Mode. Use PRG to enter, and EPG to exit.

Error Handling

If a command fails, the scanner returns one of the following:

• ERR[\r]: Command format error / Value error
• NG[\r]: Command is currently invalid/rejected
• FER[\r]: Framing error
• ORER[\r]: Overrun error

Standard Data Types

• [INDEX]: Internal memory chain handle (1 to ~45000).
• [FRQ]: 8-digit frequency without decimals (1 GHz to 100 Hz). Example: 08510125 = 851.0125 MHz.
• [MOD]: Modulation (AUTO / AM / FM / NFM / WFM / FMB).
• [ATT], [LOUT], [MUT]: Binary states (0 = Off/Unlocked, 1 = On/Lockout).
• [SQL]: Squelch Status (0 = Close, 1 = Open).
• Coordinates:
  • [LATITUDE]: DDMMSSssL (e.g., 40425112N)
  • [LONGITUDE]: DDDMMSSssL (e.g., 074002305W)

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3. Command Index

Category	Command	Function	Prog Mode
Control	GID	Get Current TalkGroup ID Status
	KEY	Push KEY
	POF	Power Off
	QSH	Go to quick search hold mode
	QSC	Set current frequency and get reception status
	CSC	Go to Custom search and get reception status
	PWR	Get RSSI Level
	STS	Get Current Status
	GLG	Get Reception Status
	JPM	Jump Mode
	JNT	Jump to Number Tag
	MNU	Menu Mode
System	MDL	Get Model Info
	VER	Get Firmware Version
	PRG	Enter Program Mode
	EPG	Exit Program Mode
Settings	BLT	Get/Set Backlight	O
	BSV	Get/Set Battery Info	O
	COM	Get/Set COM port setting	O
	CLR	Clear All Memory	O
	KBP	Get/Set Key Beep and setting	O
	OMS	Get/Set Opening Message	O
	PRI	Get/Set Priority Mode	O
	AGV	Get/Set Auto Gain Control	O
Memory	SCT	Get System Count	O
	SIN	Get/Set System Info	O
	TRN	Get/Set Trunk Info	O
	SIF	Get/Set Site Info	O
	CIN	Get/Set Channel Info	O
	TIN	Get/Set TalkGroup ID Info	O
	LOI	Lockout ID (TalkGroup ID)	O

(Note: See full spec for extended memory mapping, location alerts, and custom search programming commands).

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4. Command Reference

Active Control & Monitoring

Get Status (STS)

Returns current LCD lines and global states.

• Send: STS[\r]
• Receive: STS, [DSP_FORM], [L1_CHAR], [L1_MODE], [L2_CHAR], [L2_MODE], [L3_CHAR], [L3_MODE], [L4_CHAR], [L4_MODE], [L8_CHAR], [L8_MODE], [SQL], [MUT], [BAT], [WAT], [RSV], [RSV], [SIG_LVL], [BK_COLOR], [BK_DIMMER][\r]

Get Reception Status (GLG)

Continuously returns data when a frequency/TGID is active.

• Send: GLG[\r]
• Receive: GLG, [FRQ/TGID], [MOD], [ATT], [CTCSS/DCS], [NAME1], [NAME2], [NAME3], [SQL], [MUT], [SYS_TAG], [CHAN_TAG], [P25NAC][\r]

Get Current TGID Status (GID)

• Send: GID[\r]
• Receive: GID, [SITE_TYPE], [TGID], [ID_SRCH_MODE], [NAME1], [NAME2], [NAME3][\r]
  • [SITE_TYPE]: CNV, MOT, EDC, EDS, LTR, P25S, P25F, TRBO, DMR

Push Key (KEY)

• Send: KEY, [KEY_CODE], [KEY_MODE][\r]
• Receive: KEY, OK[\r]
  • [KEY_CODE]: M (Menu), F (Func), H (Hold), S (Scan), L (L/O), 0-9, .(dot), E (Yes), >, <, ^, P (Power).
  • [KEY_MODE]: P (Press), L (Long), H (Hold), R (Release)

Set Current Frequency / Get Status (QSC)

• Send: QSC, [FRQ], [RSV], [MOD], [ATT], [DLY], [RSV], [CODE_SRCH], [BSC], [REP], [RSV], [AGC_ANALOG], [AGC_DIGITAL], [P25WAITING][\r]
• Receive: QSC, [RSSI], [FRQ], [SQL][\r]

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Memory & Programming

Requires PRG to initiate and EPG to close.

System Info (SIN)

• Get: SIN, [INDEX][\r]
• Set/Receive: SIN, [SYS_TYPE], [NAME], [QUICK_KEY], [HLD], [LOUT], [DLY], [RSV], [RSV], [RSV], [RSV], [RSV], [REV_INDEX], [FWD_INDEX], [CHN_GRP_HEAD], [CHN_GRP_TAIL], [SEQ_NO], [START_KEY], [RSV], [RSV], [RSV], [RSV], [RSV], [NUMBER_TAG], [AGC_ANALOG], [AGC_DIGITAL], [P25WAITING], [PROTECT], [RSV][\r]

Trunk Info (TRN)

• Get: TRN, [INDEX][\r]
• Set/Receive: TRN, [ID_SEARCH], [S_BIT], [END_CODE], [AFS], [RSV], [RSV], [EMG], [EMGL], [FMAP], [CTM_FMAP], [RSV], [RSV], [RSV], [RSV], [RSV], [RSV], [RSV], [RSV], [RSV], [RSV], [TGID_GRP_HEAD], [TGID_GRP_TAIL], [ID_LOUT_GRP_HEAD], [ID_LOUT_GRP_TAIL], [MOT_ID], [EMG_COLOR], [EMG_PATTERN], [P25NAC], [PRI_ID_SCAN][\r]

Site Info (SIF)

• Get: SIF, [INDEX][\r]
• Set/Receive: SIF, [RSV], [NAME], [QUICK_KEY], [HLD], [LOUT], [MOD], [ATT], [C-CH], [RSV], [RSV], [REV_INDEX], [FWD_INDEX], [SYS_INDEX], [CHN_HEAD], [CHN_TAIL], [SEQ_NO], [START_KEY], [LATITUDE], [LONGITUDE], [RANGE], [GPS_ENABLE], [RSV], [MOT_TYPE], [EDACS_TYPE], [P25WAITING], [RSV][\r]

Channel Info (CIN)

• Get: CIN, [INDEX][\r]
• Set/Receive: CIN, [NAME], [FRQ], [MOD], [CTCSS/DCS], [TLOCK], [LOUT], [PRI], [ATT], [ALT], [ALTL], [REV_INDEX], [FWD_INDEX], [SYS_INDEX], [GRP_INDEX], [RSV], [AUDIO_TYPE], [P25NAC], [NUMBER_TAG], [ALT_COLOR], [ALT_PATTERN], [VOL_OFFSET][\r]

TGID Info (TIN)

• Get: TIN, [INDEX][\r]
• Set/Receive: TIN, [NAME], [TGID], [LOUT], [PRI], [ALT], [ALTL], [REV_INDEX], [FWD_INDEX], [SYS_INDEX], [GRP_INDEX], [RSV], [AUDIO_TYPE], [NUMBER_TAG], [ALT_COLOR], [ALT_PATTERN], [VOL_OFFSET], [TDMA_SLOT][\r]

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Appendix A: CTCSS/DCS Codes

CTCSS (Partial List)

Freq (Hz)	Code	Freq (Hz)	Code	Freq (Hz)	Code
67.0	64	114.8	80	179.9	97
69.3	65	118.8	81	183.5	98
71.9	66	123.0	82	186.2	99
74.4	67	127.3	83	189.9	100

DCS (Partial List)

Code	ID	Code	ID	Code	ID
023	128	223	163	446	199
025	129	225	164	452	200
026	130	226	165	454	201
031	131	243	166	455	202

(0 = NONE/ALL, 127 = SEARCH)

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Appendix B: Hex Font Mapping

Scanner UI utilizes specific hex codes for rendering standard characters and custom hardware glyphs (Arrows, Battery, Signal, etc.).

Standard Alphanumeric Base:

• 0x20 - 0x2F: Symbols (! " # $ % & ' ( ) * + , - . /)
• 0x30 - 0x39: Numbers (0 - 9)
• 0x41 - 0x5A: Uppercase (A - Z)
• 0x61 - 0x7A: Lowercase (a - z)

Custom Hardware Glyphs:

• 0x84 - 0x9F: Directional Arrows, Battery Levels, Keypad Icons.
• 0xA1 - 0xBF: Priority, Attenuate, Signal Level Bars, Active Channel.
• 0xC0 - 0xCF: System Modifiers (SRCH, IFX, REP, NAC).