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Emission Designator

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An emission designator is a code associated with a frequency that gives information about the frequency's bandwidth and the nature of the signal on the frequency.


For scanner users, it can be useful for determining whether a frequency is analog or digital, and even whether the frequency transmits voice and/or data.


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
500KD7W Broadcast Radio Digital Studio to Transmitter Link 2048 kbps 32 QAM
500KF8W Broadcast Radio Analog Studio to Transmitter Link
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


* When used between 136 - 470 MHz in Part 90 use, this technology is not compliant with 2013 narrowbanding requirements and must be discontinued by January 1, 2013. As of January 1, 2011, this emission may no longer be applied for between 136 - 470 MHz in Part 90 use, unless it fits within the existing contours of an already licensed system. These emissions may not appear on a new license or be used to extend the footprint of an already licensed wideband system beyond what existed prior to January 1, 2011.

Note that an emission designator identifies the characteristics of the signal and is not unique to only one type of technology or manufacturer. More than one type of deployed technology may use the same emission designator.

Use of F9W Suffix

Some license application preparers have used the suffix F9W to indicate that multiple different emissions within the specified bandwidth are possible. This simplifies filling information into the FCC 601 form, but does not reflect each specific modulation type. For example, 11K2F9W may indicate that the system toggles between narrowband analog voice and P25 (or some other) digital emission, but not at the same time. A strict interpretation of ITU emissions indicates that the F9W suffix is both analog and digital simultaneously, and is therefore incorrect. A properly completed 601 form should itemize each discrete emission intended so the technologies used may be easily identified.

The exception to using F9W is Harris OpenSky, which has been certificated by the FCC as F9W, although F7W may be better descriptive.

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