Emissions Designator F9
Decode the occupied bandwidth, modulation, signal nature, and information type.
Decoded Emission Designator
| Emission Designator | F9 |
|---|---|
| Normalized Code | F9 |
| Necessary Bandwidth | Unknown |
| Modulation Type | [-] Unknown or other modulation |
| Signal Nature | [-] Unknown or other signal nature |
| Information Type | [-] Unknown or other information type |
What This Means
F9 is an FCC emission designator. This short form does not include a necessary bandwidth prefix, so it only describes the emission class: unknown or other modulation, unknown or other signal nature, carrying unknown or other information type.
How to Read F9
| Step | Value | Meaning |
|---|---|---|
| Bandwidth prefix | Not supplied | Unknown |
| First symbol | - | Unknown or other modulation |
| Second symbol | - | Unknown or other signal nature |
| Third symbol | - | Unknown or other information type |
Purpose on FCC Records
Emission designators are used on FCC grants and equipment authorization records to summarize the radio emission being authorized. They help identify how wide the emission is, how the carrier is modulated, whether the signal is analog or digital, and what kind of information is being transmitted.
They are useful for comparing radios, matching a grant to a modulation type, and understanding whether an authorization covers voice, data, telemetry, video, or mixed services.
An emission designator is not the whole authorization. It does not by itself prove the exact channel plan, antenna limits, output power, or every condition on the grant. For those details, read the FCC grant and the related test reports.
Bandwidth Notes
The bandwidth prefix uses a letter as both the decimal point and the unit. For example, 20K0 means 20.0 kHz, 8M91 means 8.91 MHz, and 345K means 345 kHz.
Symbol Reference for F9
| Symbol | Position | Category | Decoded Meaning |
|---|---|---|---|
| - | First symbol | Carrier modulation | Unknown or other modulation |
| - | Second symbol | Modulating signal | Unknown or other signal nature |
| - | Third symbol | Information transmitted | Unknown or other information type |
Regulatory Reference
The FCC classification system for emission, modulation, and transmission characteristics is defined in 47 CFR 2.201. The FCC also indicates that the full emission designation is preceded by the necessary bandwidth when the full designation is required.
FCC 2.201 Notes
- FCC emission designators combine emission classification with the necessary bandwidth of the emission.
- The three required symbols identify carrier modulation, nature of the modulating signal, and type of information transmitted.
- Fourth and fifth symbols may be added for a more complete description, but the Commission does not require them.
- When frequency modulation F is indicated, phase modulation G is also acceptable under the FCC note in this section.
- Pulse-code or other quantized direct modulation should be classified under the amplitude or angle modulation groups, not merely as pulse emission.
- The information symbol does not include constant, unvarying information such as standard frequency emissions, continuous wave emissions, or pulse radars.
- Type B damped-wave emission is an FCC exception and is forbidden.
- When the full designation is needed, the emission symbol is preceded by the necessary bandwidth as indicated in 47 CFR 2.202(b)(1).
FCC Records Using F9
| FCC ID | Device | Frequency | Date |
|---|---|---|---|
| BQQ82H815D5 | 5KW Solid State FM Transmitter | 88-108 MHz | 2004-12-10 |
| BKS9A3XL500FM | Larcan TTC Inc | 88-108 MHz | 1998-09-23 |
| D8T9J5FS8400F45 | Mitsubishi Wireless Communications Inc. | 869-894 MHz | 1991-02-14 |
| B8X8KECA64C | Grant includes F8E emission. | 5925-6425 MHz | 1988-08-10 |
| BNB866AWP-42100 | This action adds power adjustment note. | 3700-4200 MHz | 1988-02-11 |
| BNB866AWP640900 | This action adds power adjustment note. | 5925-6425 MHz | 1985-10-29 |
| BNB866AWP64100 | This action adds power adjustment note. | 5925-6425 MHz | 1985-10-29 |
| BXG8TX8251 | 2 Watts maximum RF input (drive). This action adds Part 22. | 870-960 MHz | 1985-05-23 |
| CDS8JZ70PA5 | This action extends rated frequency range and adds Parts 21 and 94. | 5925-7125 MHz | 1984-12-04 |
| DWK6TETRANSPONDER | Signal booster | 450-470 MHz | 1984-11-02 |
| DOO63QMPA-51 | AML Wireless Networks Inc | 10550-13250 MHz | 1984-03-20 |
| DOO63QMPA-52 | AML Wireless Networks Inc | 10550-13250 MHz | 1984-03-20 |
| DOO63QMPA-53 | AML Wireless Networks Inc | 10550-13250 MHz | 1984-03-20 |
| B8H8KU1310 | RF Technology Inc | 12700-13250 MHz | 1984-02-23 |
| BY68SEFV60911-A | Harris Corporation | 6875-7125 MHz | 1984-01-26 |
| B8H8KURF-710A | RF Technology Inc | 6875-7125 MHz | 1984-01-04 |
| B8H8KURF710 | RF Technology Inc | 6875-7125 MHz | 1983-10-07 |
| BKS9A3XL1AF | Provides output power shown on one to four channels in the FM Broadcasting band. Power is for each channel. | 88-108 MHz | 1983-08-30 |
| BKS9A3XL10AF | Provides output power shown on one to four channels in the FM Broadcasting band. Power is for each channel. | 88-108 MHz | 1983-08-29 |
| BNB866AWP900 | This action adds Part 94. | 860-960 MHz | 1983-07-13 |
| B8H8KURF-218 | RF Technology Inc | 1990-2110 MHz | 1983-04-21 |
| B8X8KECA42C | Interlink Communications Inc. | 3700-4200 MHz | 1983-01-13 |
| CDS8JZ70PA2 | Maximum input RF drive level is -4 dBm. | 6875-7125 MHz | 1983-01-13 |
| CSB7ZYSMX-40 | EXCITER | 88-108 MHz | 1982-11-24 |
| BV88U4PA200 | Harris Corporation | 1990-2110 MHz | 1982-11-03 |
| CDS8JZ20PA15 | Nurad Inc | 1990-2110 MHz | 1982-10-14 |
| CDS8JZ25PA15 | Nurad Inc | 2450-2500 MHz | 1982-10-14 |