Emission Types

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An emission designator

An emission designator utilizes a seven-character “word” to represent the bandwidth, modulation, nature of signal, and type of information transmitted by a particular radio. The emission designator is required in most FCC radio applications.


An emission designator consists of seven characters as follows: · The first four characters identify the necessary bandwidth required to transmit the desired information at the rate and with the quality required for the system employed; · The fifth character identifies the type of modulation of the main carrier; · The sixth character identifies the nature of signal(s) modulating the main carrier; · The seventh character identifies the type of information to be transmitted.


Necessary Bandwidth

Necessary Bandwidth – First Four Characters The necessary bandwidth is to be expressed using three numerals and one letter. The letter occupies the position of the decimal point and represents the unit of bandwidth. The first character can be neither zero, K, M, nor G; it must be a non-zero digit or H. The necessary bandwidths must be rounded to three significant digits. The rounded value of the necessary bandwidth must follow the syntax below: · between 0.00100 and 999 Hz shall be expressed in Hz (letter H); · between 1.00 and 999 kHz shall be expressed in kHz (letter K); · between 1.00 and 999 MHz shall be expressed in MHz (letter M); · between 1.00 and 999 GHz shall be expressed in GHz (letter G).

Examples:

Frequency Bandwidth

Designator

0.002 Hz H002
0.1 Hz H100
25.3 Hz 25H3
400 Hz 400H
2.4 kHz 2K40
6 kHz 6K00
12.5 kHz 12K5
180.4 kHz 180K
180.5 kHz 181K
180.7 kHz 181K
1.25 MHz 1M25
2 MHz 2M00
10 MHz 10M0
202 MHz 202M
5.65 GHz 5G65


Modulation Types (5th Character)

Description Symbol
Emission of an unmodulated carrier N
Emission in which the main carrier is amplitude-modulated (including cases where sub-carriers are angle-modulated):
Double-sideband A
Single-sideband, full carrier H
Single-sideband, reduced or variable level carrier R
Single-sideband, suppressed carrier J
Independent sidebands B
Vestigial sideband C
Emission in which the main carrier is angle-modulated:
Frequency modulation F
Phase modulation G
Emission in which the main carrier is amplitude and angle-modulated either simultaneously or in a pre-established sequence D
Emission of pulses: (see note below)
Sequence of unmodulated pulses P
A sequence of pulses:
Modulated in amplitude K
Modulated in width/duration L
Modulated in position/phase M
In which the carrier is angle-modulated during the period of the pulse Q
Which is a combination of the foregoing or is produced by other means V
Cases not covered above, in which an emission consists of the main carrier

modulated, either simultaneously or in pre-established sequence, in a combination of two or more of the following modes: amplitude, angle, pulse

W
Cases not otherwise covered X

NOTE: Whenever frequency modulation "F" is indicated, Phase modulation "G" is also acceptable. Emissions where the main carrier is directly modulated by a signal which has been coded into quantized form (e.g. pulse code modulation) should be designated under amplitude modulation or angle modulation.


Nature of Signal(s) Modulating the Main Carrier – Sixth Character

Description Symbol
No modulating signal 0
A single channel containing quantized or digital information without the use of a modulating sub-carrier, excluding time-division multiplex 1
A single channel containing quantized or digital information with the use of a modulating sub-carrier, excluding time-division multiplex 2
A single channel containing analog information 3
Two or more channels containing quantized or digital information 7
Two or more channels containing analog information 8
Composite system with one or more channels containing quantized or digital information, together with one or more channels containing analog information 9
Cases not otherwise covered X

Type of Information to be Transmitted – Seventh Character

Description Symbol
No information transmitted N
Telegraphy - for aural reception A
Telegraphy - for automatic reception B
Facsimile C
Data transmission, telemetry, tele-command D
Telephony (including sound broadcasting) E
Television (video) F
Combination of the above W
Cases not otherwise covered X


Common Emission Designations

Identified Emission Designators

Designator Description
60H0J2B PSK31
100HN0N Speed Radar (10525 MHz X band; 24150 MHz Ka band)
150HA1A Continuous Wave Telegraphy (manually read Morse Code)
500HJ2D MT63-500 50 WPM
1K00J2D MT63-1000 100 WPM
2K00J2D MT63-2000 200 WPM
2K80J2B HF RTTY (Radio Teletype)
2K80J2D HF PACTOR-III
2K80J3E Amplitude modulated (AM) analog voice, single sideband suppressed carrier (USB or LSB, not at the same time)
3K00H2B HF ALE MIL-STD-188-141A/FED-STD-1045
3K30F1D 6.25 kHz SCADA link (CalAmp Viper SC – 173 MHz)
4K00F1D NXDN 6.25 kHz data (IDAS, NEXEDGE)
4K00F1E NXDN 6.25 kHz digital voice (IDAS, NEXEDGE)
4K00F1W NXDN 6.25 kHz digital voice and data (IDAS, NEXEDGE)
4K00F2D NXDN 6.25 kHz analog FM CW ID (IDAS, NEXEDGE)
4K00J1D Amplitude Compandored Sideband (pilot tone/carrier)
4K00J2D Amplitude Compandored Sideband (pilot tone/carrier)
4K00J3E Amplitude Compandored Sideband (pilot tone/carrier) voice
5K60F2D SCADA
5K76G1E P25 CQPSK voice (typically used for simulcast systems – this is NOT P25 Phase II)
6K00A3E Amplitude modulated (AM) analog voice, double sideband full carrier (AM mode in RadioReference.com Database)
6K00F1D SCADA Carrier Frequency Shift Keying
6K00F2D SCADA Audio Frequency Shift Keying
6K00F3D SCADA Analog data that is not AFSK (variable tone, DTMF, etc.)
7K60FXD 2-slot DMR (Motorola MOTOTRBO) TDMA data
7K60FXE 2-slot DMR (Motorola MOTOTRBO) TDMA voice
8K10F1D P25 Phase I C4FM data
8K10F1E P25 Phase I C4FM voice (P25 mode in RadioReference.com Database)
8K10F1W P25 Phase II subscriber units (Harmonized Continuous Phase Modulation – H-CPM)
8K30F1D NXDN 12.5 kHz data (Wide IDAS, NEXEDGE)
8K30F1E NXDN 12.5 kHz digital voice (Wide IDAS, NEXEDGE)
8K30F1W P25 Phase I C4FM hybridized voice and data applications (most commonly seen on trunked licenses)
8K30F7W NXDN 12.5 kHz digital voice and data (Wide IDAS, NEXEDGE)
8K50F9W Harris OpenSky (2 slot narrowband)
8K70D1W P25 Linear Simulcast Modulation ASTRO (9.6 kbps in 12.5 kHz channelspace)
9K20F2D Zetron-based alphanumeric paging/alerting system (seen in practice using Daniels base stations)
9K30F1D SCADA/ Remote Control
9K70F1D P25 Linear Simulcast Modulation “WCQPSK” data (per Harris MASTR-V literature)
9K70F1E P25 Linear Simulcast Modulation “WCQPSK” voice (per Harris MASTR-V literature)
9K80D7W P25 Phase II fixed-end 2-slot TDMA (Harmonized Differential Quadrature Phase Shift Keyed modulation – H-DQPSK), per Motorola literature
9K80F1D P25 Phase II fixed-end 2-slot TDMA H-DQPSK data, per Harris MASTR-V literature
9K80F1E P25 Phase II fixed-end 2-slot TDMA H-DQPSK voice (interpolation of MASTR-V literature)
10K0F1D LTI Automated Vehicle Location (AVL) system - LT6 Radio Modem
10K0F1D RD-LAP 9.6 kbps data on narowband channel
10K0F1D * Motorola Widepulse ASTRO simulcast data
10K0F1D * Motorola Widepulse ASTRO simulcast control channel
10K0F1E * Motorola Widepulse ASTRO simulcast voice
11K2F2D Frequency modulated (FM) 2.5 kHz deviation audio frequency shift keying within a 12.5 kHz channelspace (commonly used for 1.2 kbps packet, FFSK station alerting, and AFSK outdoor warning siren signaling)
11K2F3D Frequency modulated (FM) 2.5 kHz deviation DTMF or other audible, non-frequency shift signaling, such as Whelen outdoor warning sirens or “Knox-Box®” activation
11K2F3E Frequency modulated (FM) 2.5 kHz deviation analog voice, "narrowband 12.5 kHz" (FMN mode in RadioReference.com Database) - may also be 11K0 and 11K3 bandwidth
11K2F9W Formerly and incorrectly used as a catch-all narrowband emission for analog and digital use. Each appropriate emission should be listed discretely.
12K1F9W Harris OpenSky (NPSPAC - 4 slot)
13K1F9W Harris OpenSky (SMR - 4 slot)
13K6F3E Frequency modulated (FM) analog voice, 3.8 kHz deviation (900 MHz)
13K6W7W Motorola iDEN (900 MHz)
14K0F1D Motorola 3600 baud trunked control channel (NPSPAC)
16K0F1D * Motorola 3600 baud trunked control channel
16K0F2D * 4 kHz deviation FM audio frequency shift keying (72 MHz fire alarm boxes)
16K0F3E * Frequency modulated (FM) analog voice, 4 kHz deviation (NPSPAC); (FM mode in RadioReference.com Database)
16K8F1E * Encrypted Quantized Voice (Motorola DVP, DES, DES-XL on NPSPAC)
17K7D7D Motorola HPD High Performance Data – “Astro 25" suite, as Motorola HAI (High performance data Air Interface) – 700/800 MHz – requires 25 kHz channelspace
20K0D1E Reduced power TETRA – PowerTrunk 4/TDMA fixed-end (voice)
20K0D1W Reduced power TETRA – PowerTrunk 4/TDMA fixed-end (simultaneous mixed modes)
20K0F1D RD-LAP 19.2 kbps within a wideband channel (2013 compliant, meets data throughput requirement)
20K0F1E * Encrypted Quantized Voice (Motorola DVP, DES, DES-XL - NOT P25 DES-OFB/AES)
20K0F3E * Frequency modulated (FM) analog voice, 5 kHz deviation; "wideband 25 kHz" (FM mode in RadioReference.com Database)
20K0G7W Motorola iDEN (800 MHz)
20K0W7W Motorola iDEN (800 MHz)
20K1D1D Reduced power TETRA – PowerTrunk 4/TDMA fixed-end (data)
21K0D1W TETRA ETS 300 392 Standard
30K0DXW TDMA Cellular (North America)
40K0F8W AMPS Cellular
55K0P0N CODAR oceanographic RADAR (swooping signals on HF with approx. 1 second sweep time) 3.5 - 5 MHz
100KC3F ReconRobotics surveillance robot video (430-450 MHz)
100KP0N CODAR oceanographic RADAR (swooping signals on HF with approx. 1 second sweep time) 12 - 14 MHz
170KP0N CODAR oceanographic RADAR above 24 MHz
200KF8E Broadcast FM with Subsidiary Communications Subcarrier
250KF3E Television Broadcast Audio (NTSC analog)
300KG7W EDGE (Enhanced Data rates for GSM Evolution)
300KGXW GSM Cellular
1M25F9W CDMA Cellular
2M40W7D Remote Control Video (digital, non-NTSC)
5M00G7D Public Safety LTE (all four emissions used) 5 MHz bandwidth
5M00W7W Public Safety LTE (all four emissions used) 5 MHz bandwidth
5M00G2D Public Safety LTE (all four emissions used) 5 MHz bandwidth
5M00D7D Public Safety LTE (all four emissions used) 5 MHz bandwidth
5M75C3F Television, NTSC analog video (with 250K0F3E aural carrier)
6M00C7W Television, ATSC Digital TV (video and audio)
10M0G2D Public Safety LTE (all four emissions used) 10 MHz bandwidth
10M0W7W Public Safety LTE (all four emissions used) 10 MHz bandwidth
10M0D7D Public Safety LTE (all four emissions used) 10 MHz bandwidth
10M0G7D Public Safety LTE (all four emissions used) 10 MHz bandwidth



Converting Between Old & New Systems

USE OLD NEW
Pure carrier A0,F0 N0N
Morse telegraphy (by ear) A1 A1A
Modulated CW Morse A2 A2A
AM voice A3 A3E
SSB, suppressed carrier A3J J3E
SSB, reduced carrier A3R R3E
SSB, full carrier A3H H3E
Television A5 C3F
RTTY (F.S.K.) F1 F1B
RTTY (A.F.S.K.) F2 F2B
FM voice (Narrowband) F3 F3E, 20K0F3E
Packet Data/Teleprinters with Audio Sub-Carrier 20F2 20K0F2B
Data with Audio Sub-carrier 3F2 3K00F2D
6F2 6K00F2D
20F2 20K0F2D
Analog Voice 20F3 20K0F3E
Digital Voice 20F3Y 20K0F1E
Digital Facsimile without Audio Sub-Carrier 20F4 20K0F1C
Digital Facsimile with Audio Sub-Carrier 20F4 20K0F2C
Analog Facsimile 20F4 20K0F3C
Composite of Digital & Analog Information 3F9 3K00F9W
6F9 6K00F9W
20F9 20K0F9W
Packet Data/Teleprinters without Audio Sub-Carrier 20F9Y 20K0F1B
Digital Data 20F9Y 20K0F1D