| MHz | | Category | | Description | |
| 1.8180 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - CW (hh:30) | |
| 1.8550 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Voice (hh:00) | |
| 1.9840 | | Hurricane Ecom Net | | LSB Virgin Islands (VI Puerto Rico Lesser Antilles) | |
| 2.1820 | | Marine Distress | | Marine Distress | |
| 2.6700 | | Hurricane Govt | | USB USCG wx Cape Hatteras NC (0133 1303) | |
| 2.6700 | | Hurricane Govt | | USB USCG wx Eastern Shore VA (0233 1403) | |
| 2.6700 | | Hurricane Govt | | USB USCG wx Fort Macon NC (0103 1233) | |
| 2.6700 | | Hurricane Govt | | USB USCG wx Hampton Roads VA (0203 1333) | |
| 2.6700 | | Hurricane Govt | | USB USCG wx Honolulu (0903 2103) | |
| 2.6700 | | Hurricane Govt | | USB USCG wx Los Angeles/Long Beach CA (1303 2103) | |
| 2.6700 | | Hurricane Govt | | USB USCG wx Marianas Section Guam (0705 2205) | |
| 2.6700 | | Hurricane Govt | | USB USCG wx San Francisco (0203 1403) | |
| 2.8024 | | Hurricane Govt | | USB American Red Cross Disaster (F-91) | |
| 3.1714 | | Hurricane Govt | | USB American Red Cross Disaster (F-92) | |
| 3.5815 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - CW (hh:30) | |
| 3.6250 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Teleprinter (hh:15) | |
| 3.7100 | | Hurricane Ecom Net | | LSB Puerto Rico | |
| 3.8080 | | Hurricane Ecom Net | | LSB Caribbean Wx (1030) | |
| 3.8150 | | Hurricane Ecom Net | | LSB Antigua/Antilles Emergency and Weather | |
| 3.8150 | | Hurricane Ecom Net | | LSB Inter-island (continuous watch) | |
| 3.8180 | | Hurricane Ecom Net | | LSB Antigua/Antilles | |
| 3.8450 | | Hurricane Ecom Net | | LSB Gulf Coast West Hurricane | |
| 3.8625 | | Hurricane Ecom Net | | LSB Mississippi Section Traffic | |
| 3.8650 | | Hurricane Ecom Net | | LSB West Virginia Emergency | |
| 3.8730 | | Hurricane Ecom Net | | LSB Central Gulf Coast Hurricane | |
| 3.8730 | | Hurricane Ecom Net | | LSB Louisiana ARES Emergency (night) | |
| 3.8730 | | Hurricane Ecom Net | | LSB Mississippi ARES Emergency | |
| 3.8730 | | Hurricane Ecom Net | | LSB Texas ARES Emergency (night) | |
| 3.9050 | | Hurricane Ecom Net | | LSB Delaware Emergency | |
| 3.9050 | | Hurricane Ecom Net | | LSB Pacific ARES (Hawaii) | |
| 3.9070 | | Hurricane Ecom Net | | LSB Carolina Coast Emergency | |
| 3.9100 | | Hurricane Ecom Net | | LSB Louisiana Traffic | |
| 3.9100 | | Hurricane Ecom Net | | LSB Mississippi ARES | |
| 3.9100 | | Hurricane Ecom Net | | LSB Virginia Emergency Alpha (ARES/RACES) | |
| 3.9130 | | Hurricane Ecom Net | | LSB New York State Emergency | |
| 3.9150 | | Hurricane Ecom Net | | LSB Massachusetts/Rhode Island Emergency | |
| 3.9150 | | Hurricane Ecom Net | | LSB South Carolina SSB NTS | |
| 3.9170 | | Hurricane Ecom Net | | LSB Eastern Pennsylvania Emergency | |
| 3.9200 | | Hurricane Ecom Net | | LSB Maryland Emergency | |
| 3.9230 | | Hurricane Ecom Net | | LSB Mississippi ARES | |
| 3.9230 | | Hurricane Ecom Net | | LSB North Carolina ARES Emergency (Tar Heel) | |
| 3.9250 | | Hurricane Ecom Net | | LSB Central Gulf Coast Hurricane | |
| 3.9250 | | Hurricane Ecom Net | | LSB Louisiana Emergency (altn) | |
| 3.9250 | | Hurricane Ecom Net | | LSB New York State Emergency | |
| 3.9250 | | Hurricane Ecom Net | | LSB Southwest Traffic (altn) | |
| 3.9270 | | Hurricane Ecom Net | | LSB North Carolina ARES (health & welfare) | |
| 3.9350 | | Hurricane Ecom Net | | LSB Alabama Emergency | |
| 3.9350 | | Hurricane Ecom Net | | LSB Belize | |
| 3.9350 | | Hurricane Ecom Net | | LSB Central Gulf Coast Hurricane | |
| 3.9350 | | Hurricane Ecom Net | | LSB Louisiana ARES (health & welfare) | |
| 3.9350 | | Hurricane Ecom Net | | LSB Mississippi ARES (health & welfare) | |
| 3.9350 | | Hurricane Ecom Net | | LSB Texas ARES (health & welfare) | |
| 3.9370 | | Hurricane Ecom Net | | LSB Western Massachusetts ARES | |
| 3.9400 | | Hurricane Ecom Net | | LSB Southern Florida Emergency | |
| 3.9470 | | Hurricane Ecom Net | | LSB Virginia Emergency Bravo (health & welfare) | |
| 3.9500 | | Hurricane Ecom Net | | LSB Hurricane Watch (Amateur-to-National Hurricane Center) (altn) | |
| 3.9500 | | Hurricane Ecom Net | | LSB Northern Florida Emergency | |
| 3.9550 | | Hurricane Ecom Net | | LSB South Texas Emergency | |
| 3.9600 | | Hurricane Ecom Net | | LSB Northeast Coast Hurricane | |
| 3.9650 | | Hurricane Ecom Net | | LSB Alabama Emergency (altn) | |
| 3.9650 | | Hurricane Ecom Net | | LSB Connecticut Emergency | |
| 3.9670 | | Hurricane Ecom Net | | LSB Gulf Coast (outgoing traffic) | |
| 3.9700 | | Hurricane Ecom Net | | LSB New Jersey ARES | |
| 3.9750 | | Hurricane Ecom Net | | LSB Georgia ARES | |
| 3.9750 | | Hurricane Ecom Net | | LSB Texas RACES | |
| 3.9800 | | Hurricane Ecom Net | | LSB Southeast Virginia ARES | |
| 3.9875 | | Hurricane Ecom Net | | LSB Mexican National | |
| 3.9900 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Voice (hh:00) | |
| 3.9905 | | Hurricane Ecom Net | | LSB New Jersey RACES | |
| 3.9930 | | Hurricane Ecom Net | | LSB New York State RACES | |
| 3.9935 | | Hurricane Ecom Net | | LSB Gulf Coast (health & welfare) | |
| 3.9935 | | Hurricane Ecom Net | | LSB South Carolina ARES/RACES Emergency | |
| 3.9950 | | Hurricane Ecom Net | | LSB Gulf Coast Wx | |
| 3.9950 | | Hurricane Ecom Net | | LSB Western New York State Coordination | |
| 4.0150 | | MARS | | Military Amateur Radio Service | |
| 4.1250 | | Marine Distress | | Marine Distress | |
| 4.1340 | | Coast Guard | | Ship | |
| 4.1460 | | Coast Guard | | Simplex | |
| 4.1490 | | Coast Guard | | Simplex | |
| 4.4260 | | Coast Guard | | Coast | |
| 4.4260 | | Hurricane Govt | | USB USCG wx NMC San Francisco (0430 1030) | |
| 4.4260 | | Hurricane Govt | | USB USCG wx NMN Portsmouth (0330 0500 0930) | |
| 4.7240 | | Hurricane Govt | | USB GHFS | |
| 5.1364 | | Hurricane Govt | | USB American Red Cross Disaster (F-93) | |
| 5.1414 | | Hurricane Govt | | USB American Red Cross Disaster (F-94) | |
| 5.2110 | | Hurricane Govt | | USB FEMA | |
| 5.2360 | | Hurricane Govt | | USB SHARES Coordination Network (nationwide HF voice coordination) | |
| 6.2000 | | Coast Guard | | Ship | |
| 6.2150 | | Marine Distress | | Marine Distress | |
| 6.2240 | | Coast Guard | | Simplex | |
| 6.2270 | | Coast Guard | | Simplex | |
| 6.2300 | | Coast Guard | | Simplex | |
| 6.5010 | | Coast Guard | | Coast | |
| 6.5010 | | Hurricane Govt | | USB USCG wx Marianas Section Guam (0930 1530) | |
| 6.5010 | | Hurricane Govt | | USB USCG wx NMN Portsmouth (0330 0500 0930 1130 1600 2200 2330) | |
| 6.5010 | | Hurricane Govt | | USB USCG wx NMO Honolulu (0600 1200) | |
| 6.7120 | | Hurricane Govt | | USB USAF GHFS SAR | |
| 6.7390 | | Hurricane Govt | | USB GHFS | |
| 6.8595 | | Hurricane Govt | | USB American Red Cross Disaster (F-95) | |
| 7.0475 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - CW (hh:30) | |
| 7.0550 | | Hurricane Ecom Net | | LSB El Grupo Seguimiento de Huracanes (Spanish) | |
| 7.0600 | | Hurricane Ecom Net | | LSB Mexican (emergency and health & welfare) (Spanish) | |
| 7.0700 | | Hurricane Ecom Net | | LSB Manana (Baja California) | |
| 7.0900 | | Hurricane Ecom Net | | LSB Central America Emergency | |
| 7.0950 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Teleprinter (hh:15) | |
| 7.1450 | | Hurricane Ecom Net | | LSB Bermuda | |
| 7.1650 | | Hurricane Ecom Net | | LSB Antigua/Antilles Emergency and Weather | |
| 7.1650 | | Hurricane Ecom Net | | LSB Inter-island 40-meter (continuous watch) | |
| 7.2250 | | Hurricane Ecom Net | | LSB Central Gulf Coast Hurricane | |
| 7.2300 | | Hurricane Ecom Net | | LSB New York State Emergency | |
| 7.2300 | | Hurricane Ecom Net | | LSB Southwest Traffic | |
| 7.2320 | | Hurricane Ecom Net | | LSB North Carolina ARES Emergency (Tar Heel) (altn) | |
| 7.2350 | | Hurricane Ecom Net | | LSB Baja California | |
| 7.2350 | | Hurricane Ecom Net | | LSB Central Gulf Coast Hurricane | |
| 7.2350 | | Hurricane Ecom Net | | LSB Louisiana Emergency | |
| 7.2350 | | Hurricane Ecom Net | | LSB Louisiana Emergency | |
| 7.2350 | | Hurricane Ecom Net | | LSB West Virginia | |
| 7.2400 | | Hurricane Ecom Net | | LSB American Red Cross US Gulf Coast Disaster | |
| 7.2400 | | Hurricane Ecom Net | | LSB Texas Emergency | |
| 7.2400 | | Hurricane Ecom Net | | LSB Virginia Emergency Bravo (health & welfare) (altn) | |
| 7.2420 | | Hurricane Ecom Net | | LSB Southern Florida ARES Emergency (altn) | |
| 7.2430 | | Hurricane Ecom Net | | LSB Alabama Emergency | |
| 7.2430 | | Hurricane Ecom Net | | LSB South Carolina Emergency | |
| 7.2450 | | Hurricane Ecom Net | | LSB New York State RACES | |
| 7.2450 | | Hurricane Ecom Net | | LSB Southern Louisiana | |
| 7.2475 | | Hurricane Ecom Net | | LSB Northern Florida ARES Emergency (altn) | |
| 7.2480 | | Hurricane Ecom Net | | LSB Texas RACES | |
| 7.2500 | | Hurricane Ecom Net | | LSB Belize | |
| 7.2500 | | Hurricane Ecom Net | | LSB Texas Emergency | |
| 7.2540 | | Hurricane Ecom Net | | LSB Northern Florida Emergency | |
| 7.2600 | | Hurricane Ecom Net | | LSB Gulf Coast West Hurricane | |
| 7.2600 | | Hurricane Ecom Net | | LSB Virginia Emergency, Alpha (ARES/RACES) (altn) | |
| 7.2640 | | Hurricane Ecom Net | | LSB Gulf Coast (health & welfare) | |
| 7.2650 | | Hurricane Ecom Net | | LSB Salvation Army Team Emergency Radio (SATERN) | |
| 7.2680 | | Hurricane Ecom Net | | LSB Bermuda | |
| 7.2680 | | Hurricane Ecom Net | | LSB Waterway | |
| 7.2730 | | Hurricane Ecom Net | | LSB Texas ARES (altn) | |
| 7.2750 | | Hurricane Ecom Net | | LSB Georgia ARES | |
| 7.2800 | | Hurricane Ecom Net | | LSB Louisiana Emergency (altn) | |
| 7.2800 | | Hurricane Ecom Net | | LSB NTS Region 5 | |
| 7.2830 | | Hurricane Ecom Net | | LSB Gulf Coast (outgoing only) | |
| 7.2850 | | Hurricane Ecom Net | | LSB Louisiana ARES Emergency (day) | |
| 7.2850 | | Hurricane Ecom Net | | LSB Mississippi ARES Emergency | |
| 7.2850 | | Hurricane Ecom Net | | LSB Texas ARES Emergency (day) | |
| 7.2900 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Voice (hh:00) | |
| 7.2900 | | Hurricane Ecom Net | | LSB Central Gulf Coast Hurricane | |
| 7.2900 | | Hurricane Ecom Net | | LSB Gulf Coast Wx | |
| 7.2900 | | Hurricane Ecom Net | | LSB Hawaii Emergency | |
| 7.2900 | | Hurricane Ecom Net | | LSB Louisiana ARES (health & welfare) (day) | |
| 7.2900 | | Hurricane Ecom Net | | LSB Mississippi ARES (health & welfare) | |
| 7.2900 | | Hurricane Ecom Net | | LSB Texas ARES (health & welfare) | |
| 7.2900 | | Hurricane Ecom Net | | LSB Texas ARES (health & welfare) | |
| 7.2900 | | Hurricane Ecom Net | | LSB Traffic | |
| 7.5070 | | Hurricane Govt | | USB USN/USCG hurricane net (pri) | |
| 7.5085 | | Hurricane Govt | | USB FAA Caribbean hurricane net | |
| 7.5505 | | Hurricane Govt | | USB American Red Cross Disaster (F-96 - primary) | |
| 7.6985 | | Hurricane Govt | | USB American Red Cross Disaster (F-97) | |
| 8.2400 | | Coast Guard | | Ship | |
| 8.2910 | | Marine Distress | | Marine Distress | |
| 8.2940 | | Coast Guard | | Simplex | |
| 8.2970 | | Coast Guard | | Simplex | |
| 8.7640 | | Coast Guard | | Coast | |
| 8.7640 | | Hurricane Govt | | USB USCG wx NMC San Francisco (0430 1030 1630 2230) | |
| 8.7640 | | Hurricane Govt | | USB USCG wx NMN Portsmouth (0330 0500 0930 1130 1600 1730 2200 2330) | |
| 8.7640 | | Hurricane Govt | | USB USCG wx NMO Honolulu (0000 0600 1200 1800) | |
| 8.9920 | | Hurricane Govt | | USB GHFS | |
| 9.3800 | | Hurricane Govt | | USB USN/USCG hurricane net (sec) | |
| 10.4930 | | Hurricane Govt | | USB FEMA | |
| 11.1750 | | Hurricane Govt | | USB GHFS | |
| 12.2420 | | Coast Guard | | Ship | |
| 12.2900 | | Marine Distress | | Marine Distress | |
| 12.3530 | | Coast Guard | | Simplex | |
| 12.3560 | | Coast Guard | | Simplex | |
| 12.3590 | | Coast Guard | | Simplex | |
| 12.3620 | | Coast Guard | | Simplex | |
| 12.3650 | | Coast Guard | | Simplex | |
| 13.0890 | | Coast Guard | | Coast | |
| 13.0890 | | Hurricane Govt | | USB USCG wx Marianas Section Guam (0300 2130) | |
| 13.0890 | | Hurricane Govt | | USB USCG wx NMC San Francisco (0430 1030 1630 2230) | |
| 13.0890 | | Hurricane Govt | | USB USCG wx NMN Portsmouth (1130 1600 1730 2200 2330) | |
| 13.0890 | | Hurricane Govt | | USB USCG wx NMO Honolulu (0000 1800) | |
| 13.2000 | | Hurricane Govt | | USB GHFS | |
| 13.5100 | | Hurricane Govt | | USB Pictures from CFH Halifax (1000-2200) | |
| 14.0475 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - CW (hh:30) | |
| 14.0950 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Teleprinter (hh:15) | |
| 14.1850 | | Hurricane Ecom Net | | USB Caribbean Emergency | |
| 14.2000 | | Hurricane Ecom Net | | USB (Please advise) | |
| 14.2150 | | Hurricane Ecom Net | | USB Pacific Inter-island | |
| 14.2220 | | Hurricane Ecom Net | | USB Health & Welfare | |
| 14.2450 | | Hurricane Ecom Net | | USB Health & Welfare | |
| 14.2650 | | Hurricane Ecom Net | | USB Salvation Army Team Emergency Radio (SATERN) | |
| 14.2680 | | Hurricane Ecom Net | | USB Amateur Radio Readiness Group | |
| 14.2750 | | Hurricane Ecom Net | | USB Bermuda | |
| 14.2750 | | Hurricane Ecom Net | | USB International Amateur Radio | |
| 14.2830 | | Hurricane Ecom Net | | USB Caribus (health & welfare) | |
| 14.2900 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Voice (hh:00) | |
| 14.3000 | | Hurricane Ecom Net | | USB Intercontinental Traffic | |
| 14.3000 | | Hurricane Ecom Net | | USB Maritime Mobile Service | |
| 14.3030 | | Hurricane Ecom Net | | USB International Assistance & Traffic | |
| 14.3130 | | Hurricane Ecom Net | | USB Intercontinental Traffic (altn) | |
| 14.3130 | | Hurricane Ecom Net | | USB Maritime Mobile Service (altn) | |
| 14.3160 | | Hurricane Ecom Net | | USB Health & Welfare | |
| 14.3200 | | Hurricane Ecom Net | | USB Health & Welfare | |
| 14.3250 | | Hurricane Ecom Net | | USB Hurricane Watch (Amateur-to-National Hurricane Center) | |
| 14.3400 | | Hurricane Ecom Net | | USB California-Hawaii | |
| 14.3400 | | Hurricane Ecom Net | | USB Louisiana (1900) | |
| 14.3400 | | Hurricane Ecom Net | | USB Manana (1900) | |
| 14.3965 | | Hurricane Govt | | USB SHARES Coordination Network (nationwide HF voice coordination) | |
| 15.0160 | | Hurricane Govt | | USB GHFS | |
| 16.4200 | | Marine Distress | | Marine Distress | |
| 16.4320 | | Coast Guard | | Ship | |
| 17.3140 | | Coast Guard | | Coast | |
| 17.3140 | | Hurricane Govt | | USB USCG wx from NMC San Francisco (1630 2230) | |
| 17.3140 | | Hurricane Govt | | USB USCG wx from NMN Portsmouth (1730) | |
| 18.0975 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - CW (hh:30) | |
| 18.1025 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Teleprinter (hh:15) | |
| 18.1600 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Voice (hh:00) | |
| 18.7950 | | Coast Guard | | Ship | |
| 19.7700 | | Coast Guard | | Coast | |
| 21.0675 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - CW (hh:30) | |
| 21.0950 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Teleprinter (hh:15) | |
| 21.3100 | | Hurricane Ecom Net | | USB Health & Welfare (Spanish) | |
| 21.3900 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Voice (hh:00) | |
| 21.3900 | | Hurricane Ecom Net | | USB Inter-Americas (health & welfare) | |
| 21.4000 | | Hurricane Ecom Net | | USB Transatlantic Maritime | |
| 22.0600 | | Coast Guard | | Ship | |
| 22.7560 | | Coast Guard | | Coast | |
| 25.0970 | | Coast Guard | | Ship | |
| 26.1720 | | Coast Guard | | Coast | |
| 28.0675 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - CW (hh:30) | |
| 28.0950 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Teleprinter (hh:15) | |
| 28.4100 | | Hurricane Ecom Net | | USB New Jersey ARES | |
| 28.4500 | | Hurricane Ecom Net | | USB Health & Welfare (Spanish) | |
| 28.5900 | | ARRL Bulletin | | W1AW Hourly emergency bulletin - Voice (hh:00) | |
| 30.9200 | | Utilities | | Jones Well Drilling, Jarrettsville | |
| 31.3200 | | Utilities | | Grove Plumbing & Heating - Bel Air | |
| 31.3400 | | MD Govt | | State D.N.R. - Channel A (Administrative) | |
| 31.4400 | | Utilities | | Maryland Portable Concrete - Havre De Grace / Elkton | |
| 31.4600 | | MD Govt | | State D.N.R. - Channel C (Command/Water Resources) | |
| 33.1400 | | McDonalds | | McDonalds of Bel Air | |
| 33.6600 | | Harford Fire | | Intersystem-York county fireground | |
| 33.7400 | | Harford Fire | | Siren activtion | |
| 33.7600 | | Harford Fire | | Old system - inactive | |
| 33.9400 | | Harford Fire | | Carroll County Maryland fire; simulcast | |
| 35.9000 | | MURS | | McComas Funeral Home, Abingdon, MD | |
| 37.2000 | | Harford Police | | County Sheriff - Old system (channel 1)(inactive) | |
| 37.2200 | | Harford Police | | Bel Air Town Police - Explorers (F-1 - Portables) | |
| 37.3000 | | Harford Police | | Bel Air Town Police - Explorers (F-2 - Portables) | |
| 37.3000 | | Harford Police | | County Sheriff - Old system (channel 2/mutual aid)(inactive) | |
| 37.3000 | | Harford Police | | Havre De Grace City Police - old system - F-2 (Secondary/mutual aid)(inactive) | |
| 37.3200 | | Harford Police | | Havre De Grace City Police - old system - F-1 (Dispatch)(inactive) | |
| 37.4000 | | Harford Police | | County Sheriff - Old system | |
| 37.6000 | | Utilities | | Susquehanna Electric Company | |
| 37.9000 | | Harford Govt | | County D.P.W. - F-3 (School Maintenance)(PL 110.9) | |
| 37.9200 | | Harford Govt | | County D.P.W. - F-4 (PL 110.9) | |
| 37.9400 | | Harford Govt | | County Services/D.P.W./Transit - F-1 (PL 110.9) | |
| 37.9400 | | Taxi | | Harford County Transit - F-1 (PL 110.9) | |
| 37.9600 | | Harford Govt | | County Services/D.P.W./Transit - F-2 (PL 110.9) | |
| 37.9600 | | Taxi | | Harford County Transit - F-2 (PL 110.9) | |
| 39.1000 | | Harford Police | | State Police - Channel A-01 (Statewide Intersystem) | |
| 39.2400 | | Harford Police | | State Police - Channel B-13 (Barracks M, Perryville/J.F.K. Highway) | |
| 39.2600 | | Harford Police | | State Police - Channel A-02 (MARNIS) | |
| 39.3400 | | Harford Police | | State Police - Channel B-15 (Barracks D, Bel Air) | |
| 39.6200 | | Harford Police | | State Police - Channel B-16 | |
| 39.6600 | | Harford Police | | State Police - Criminal Investigation Bureau | |
| 39.8400 | | Harford Police | | State Police - Barracks F (North East) | |
| 39.9200 | | Harford Police | | State Police - Channel B-12 (Barracks D, Bel Air) Inactive | |
| 43.0000 | | Utilities | | Kefauver Lumber - Forest Hill | |
| 43.7200 | | Cordless Phone | | 1 43.720 48.760 Channel, Base, Handset | |
| 43.7400 | | Cordless Phone | | 2 43.740 48.840 Channel, Base, Handset | |
| 43.8200 | | Cordless Phone | | 3 43.820 48.860 Channel, Base, Handset | |
| 43.8400 | | Cordless Phone | | 4 43.840 48.920 Channel, Base, Handset | |
| 43.9200 | | Cordless Phone | | 5 43.920 49.020 Channel, Base, Handset | |
| 43.9600 | | Cordless Phone | | 6 43.960 49.080 Channel, Base, Handset | |
| 44.1200 | | Cordless Phone | | 7 44.120 49.100 Channel, Base, Handset | |
| 44.1600 | | Cordless Phone | | 8 44.160 49.160 Channel, Base, Handset | |
| 44.1800 | | Cordless Phone | | 9 44.180 49.200 Channel, Base, Handset | |
| 44.2000 | | Cordless Phone | | 10 44.200 49.240 Channel, Base, Handset | |
| 44.3200 | | Cordless Phone | | 11 44.320 49.280 Channel, Base, Handset | |
| 44.3600 | | Cordless Phone | | 12 44.360 49.360 Channel, Base, Handset | |
| 44.4000 | | Cordless Phone | | 13 44.400 49.400 Channel, Base, Handset | |
| 44.4600 | | Cordless Phone | | 14 44.460 49.460 Channel, Base, Handset | |
| 44.4800 | | Cordless Phone | | 15 44.480 49.500 Channel, Base, Handset | |
| 44.7400 | | Harford Police | | State Police - Helicopters/Emergency Management | |
| 44.9000 | | Harford Police | | State Police - Civil Defense | |
| 46.6100 | | Cordless Phone | | 16 46.610 49.670 Channel, Base, Handset | |
| 46.6300 | | Cordless Phone | | 17 46.630 49.845 Channel, Base, Handset | |
| 46.6700 | | Cordless Phone | | 18 46.670 49.860 Channel, Base, Handset | |
| 46.7100 | | Cordless Phone | | 19 46.710 49.770 Channel, Base, Handset | |
| 46.7300 | | Cordless Phone | | 20 46.730 49.875 Channel, Base, Handset | |
| 46.7700 | | Cordless Phone | | 21 46.770 49.830 Channel, Base, Handset | |
| 46.8300 | | Cordless Phone | | 22 46.830 49.890 Channel, Base, Handset | |
| 46.8700 | | Cordless Phone | | 23 46.870 49.930 Channel, Base, Handset | |
| 46.9300 | | Cordless Phone | | 24 46.930 49.990 Channel, Base, Handset | |
| 46.9700 | | Cordless Phone | | 25 46.970 49.970 Channel, Base, Handset | |
| 47.1400 | | MD Govt | | State D.O.T. - F-4 | |
| 47.2000 | | MD Govt | | State D.O.T. - F-5 | |
| 47.2600 | | MD Govt | | State D.O.T. - F-2 | |
| 47.3200 | | MD Govt | | State D.O.T. - F-1 | |
| 47.4000 | | MD Govt | | State D.O.T. - F-3 | |
| 47.5000 | | Harford Medical | | State Police - MedEvac-to-hospital secondary | |
| 47.5000 | | Harford Police | | State Police - MedEvac-to-hospital secondary | |
| 47.6400 | | Utilities | | Corbin Fuel Co. - Bel Air | |
| 47.6600 | | Harford Medical | | State Police - MedEvac-to-hospital primary | |
| 47.6600 | | Harford Police | | State Police - MedEvac-to-hospital primary | |
| 47.8200 | | Utilities | | Baltimore Gas & Electric Company | |
| 49.5800 | | Utilities | | Aero Oil Company - Havre De Grace | |
| 53.9300 | | Harford Rpt | | -1 MHz N3UR in Jarrettsville | |
| 108.4000 | | Aviation | | Phillips A.A.F. - A.T.I.S. | |
| 119.0000 | | Aviation | | Phillips A.A.F. - Approach/Departure | |
| 121.6000 | | CAP | | (AM) - Training Beacon - Civil Air Patrol | |
| 121.9000 | | Aviation | | Phillips A.A.F. - Ground Control | |
| 122.8000 | | Aviation | | Aldino Airpark - Unicom | |
| 122.8500 | | Harford Medical | | State Police - MedEvac Copter | |
| 122.8500 | | Harford Police | | State Police - MedEvac Copter | |
| 122.9000 | | Aviation | | Fallston Airport - C.T.A.F. | |
| 122.9000 | | CAP | | (AM) - Air Training - Civil Air Patrol | |
| 123.0000 | | Aviation | | Havre De Grace Seaplane Base - Unicom | |
| 123.0250 | | Harford Police | | State Police Helicopters Air to Air | |
| 123.0500 | | Harford Medical | | State Police - MedEvac Copter | |
| 123.0500 | | Harford Police | | State Police - MedEvac Copter | |
| 123.1000 | | CAP | | (AM) - Air Search & Rescue - Civil Air Patrol | |
| 123.4500 | | Aviation | | General air to air chit chat. Informal, frequently personal traffic between friends. | |
| 126.1500 | | Aviation | | Phillips A.A.F. - Tower | |
| 126.2000 | | Aviation | | Weide A.A.F. - C.T.A.F./Operations | |
| 126.7500 | | Aviation | | Weide A.A.F. - Approach/Departure | |
| 143.7500 | | CAP | | (FM) - F-2 (Repeater In) - Civil Air Patrol | |
| 143.9000 | | CAP | | (FM) - F-1 (Repeater In) - Civil Air Patrol | |
| 145.3300 | | Harford Rpt | | -600KHz in Shawsville (Large coverage area with multiple receive sites) | |
| 146.5950 | | Harford Simplex | | NEMARC Simplex | |
| 146.6700 | | Harford RPT | | National Traffic System Net: Baltimore Area DLY 6:30P (107.2) | |
| 146.8500 | | Harford Rpt | | -600 KHz WA3SFJ in Havre de Grace (Sometimes PL 107.2) | |
| 147.1200 | | Harford Rpt | | +600 KHz N3EKQ in Hickory (Good Harford County coverage) | |
| 147.7750 | | Harford Rpt | | -600 KHz WA3PFT in Hickory (RACES Repeater with PL 97.4) | |
| 148.1250 | | CAP | | (FM) - F-2 (Repeater Out) - Civil Air Patrol | |
| 148.1370 | | CAP | | (FM) - Local Operations - Civil Air Patrol | |
| 148.1500 | | CAP | | (FM) - F-1 (Repeater Out) - Civil Air Patrol | |
| 148.1500 | | CAP | | (FM) - National Simplex - Civil Air Patrol | |
| 149.5380 | | CAP | | (FM) - Air Operations - Civil Air Patrol | |
| 149.8950 | | CAP | | (FM) - Packet - Civil Air Patrol | |
| 151.0400 | | Harford Police | | State Police - I-95 Patrol (Barracks M) | |
| 151.0400 | | MD Govt | | State D.O.T. | |
| 151.1450 | | MD Govt | | State D.N.R. - F-3 (Forestry & Parks) | |
| 151.2500 | | MD Govt | | State D.N.R. - F-6 (Forestry) | |
| 151.3100 | | Harford Police | | State D.N.R. - F-7 (Parks/Enforcement) | |
| 151.3100 | | MD Govt | | State D.N.R. - F-7 (Parks/Enforcement) | |
| 151.3250 | | Harford Police | | State D.N.R. - F-2 (Parks/Enforcement) | |
| 151.3250 | | MD Govt | | State D.N.R. - F-2 (Parks/Enforcement) | |
| 151.3550 | | MD Govt | | State D.N.R. - F-4 (Forestry) | |
| 151.4150 | | Harford Police | | State D.N.R. - F-5 (Parks/Enforcement) | |
| 151.4150 | | MD Govt | | State D.N.R. - F-5 (Parks/Enforcement) | |
| 151.4600 | | MD Govt | | State D.N.R. - F-1 (Forestry) | |
| 151.4750 | | Harford Police | | State Police - Portables | |
| 151.6250 | | MURS | | "Red Dot" MURS...Multi Use Radio Service, License Free, ERP limited to 5 watts | |
| 151.6850 | | Harford Medical | | Harford Memorial Hospital | |
| 151.8200 | | MURS | | MURS Channel, 2 watts TPO, narrow 11.25K | |
| 151.8800 | | MURS | | MURS Channel 2, 2 watts TPO, narrow 11.25K | |
| 151.8950 | | McDonalds | | McDonalds of Bel Air | |
| 151.9400 | | MURS | | MURS Channel 3, 2 watts TPO, narrow 11.25K | |
| 151.9550 | | MURS | | "Purple Dot" MURS...Multi Use Radio Service, License Free, ERP limited to 5 watts | |
| 152.0080 | | Harford Medical | | Fallston General Hospital - Paging | |
| 152.2850 | | Taxi | | Harford Cab Company (Aberdeen) | |
| 152.3450 | | Taxi | | American Taxi Cab (Aberdeen), Valley Cab (Pikesville), Diamond Cabs (Glen Burnie). | |
| 152.4500 | | Taxi | | Victory Cabs (Aberdeen) | |
| 152.9000 | | Utilities | | Heaps Oil Company, Whiteford | |
| 152.9300 | | Trucking | | Jerry Preston Hauling (Jarrettsville) | |
| 152.9300 | | Utilities | | Whiteford Septic Service | |
| 153.5750 | | Utilities | | Baltimore Gas & Electric Company | |
| 153.6050 | | Utilities | | Baltimore Gas & Electric Company | |
| 153.6500 | | Utilities | | Maryland American Water Company | |
| 153.6500 | | Utilities | | Maryland-American Water Company | |
| 153.8150 | | Harford Govt | | Aberdeen Town Services - Unit-to-unit (PL 127.3) | |
| 153.8600 | | Harford Govt | | Aberdeen Town Services (PL 127.3) | |
| 153.9950 | | Harford Govt | | County Water & Sewer Department Input to 155.085 | |
| 153.9950 | | Utilities | | Harford County Water & Sewer Department Input to 155.085 | |
| 154.0850 | | Harford Govt | | County Water & Sewer Department (PL 110.9) | |
| 154.0850 | | Utilities | | Harford County Water & Sewer Department (PL 110.9) | |
| 154.2650 | | Harford Fire | | Mutual aid (inactive) | |
| 154.2800 | | Harford Fire | | Mutual aid ptimary | |
| 154.2950 | | Harford Fire | | Mutual aid (inactive) | |
| 154.5700 | | MURS | | "Blue Dot" MURS Channel 4, 2 watts TPO, wide 12.5K | |
| 154.6000 | | MURS | | "Green Dot" MURS, 2 watts TPO, wide 12.5K | |
| 154.7850 | | Harford Police | | County Court Security Portables | |
| 154.9800 | | Harford Govt | | County Services | |
| 155.0850 | | Harford Govt | | County Water & Sewer Department (PL 110.9) | |
| 155.0850 | | Utilities | | Harford County Water & Sewer Department (Input 153.995)(PL 110.9) | |
| 155.1450 | | Harford Govt | | Bel Air Town D.P.W. (PL 136.5) | |
| 155.1900 | | Harford Police | | State Police - Barracks-to-barracks | |
| 155.4000 | | Harford Medical | | Harford Memorial Hospital | |
| 155.4000 | | Harford%20Medical | | Upper Chesapeake Medical Center | |
| 155.4750 | | Harford Police | | State Police - Nationwide Police Channel | |
| 155.7300 | | Harford Police | | State Police - Mobile Extenders | |
| 155.7750 | | MD Govt | | State Services | |
| 156.0500 | | Marine | | 01A Port Operations and Commercial. VTS in selected areas. | |
| 156.1750 | | Marine | | 63A Port Operations and Commercial. VTS in selected areas. | |
| 156.2500 | | Marine | | 05A Port Operations. VTS in Seattle | |
| 156.2750 | | Marine | | 65A Port Operations | |
| 156.3000 | | Marine | | 6 Intership Safety | |
| 156.3250 | | Marine | | 66A Port Operations | |
| 156.3500 | | Marine | | 07A Commercial | |
| 156.3750 | | Marine | | 67 Commercial. Used for Bridge-to-bridge communications in lower Mississippi River. Intership only. | |
| 156.4000 | | Marine | | 8 Commercial (Intership only) | |
| 156.4250 | | Marine | | 68 Non-Commercial | |
| 156.4250 | | Harford Govt | | Havre De Grace Municipal Yacht Basin | |
| 156.4500 | | Marine | | 9 Boater Calling. Commercial and Non-Commercial. | |
| 156.4500 | | Harford Govt | | Havre De Grace Municipal Yacht Basin | |
| 156.4750 | | Marine | | 69 Non-Commercial | |
| 156.5000 | | Marine | | 10 Commercial | |
| 156.5250 | | Marine | | 70 Digital Selective Calling (voice communications not allowed) | |
| 156.5500 | | Marine | | 11 Commercial. VTS in selected areas. | |
| 156.5750 | | Marine | | 71 Non-Commercial Active in Ocean City, MD | |
| 156.6000 | | Marine | | 12 Port Operations. VTS in selected areas. | |
| 156.6250 | | Marine | | 72 Non-Commercial (Intership only) | |
| 156.6500 | | Marine | | 13 Intership Navigation Safety (Bridge-to-bridge). Ships >20m length maintain a listening watch on this channel in US waters. Rt 50 DrawBridge Ocean City, MD | |
| 156.6750 | | Marine | | 73 Port Operations | |
| 156.7000 | | Marine | | 14 Port Operations. VTS in selected areas. | |
| 156.7250 | | Marine | | 74 Port Operations | |
| 156.7500 | | Marine | | 15 Environmental (Receive only). Used by Class C EPIRBs. | |
| 156.8000 | | Marine | | 16 International Distress, Safety and Calling. Ships required to carry radio, USCG, and most coast stations maintain a listening watch on this channel. | |
| 156.8000 | | Harford Govt | | Havre De Grace Municipal Yacht Basin | |
| 156.8500 | | Marine | | 17 State Control - Active in Ocean City, MD | |
| 156.8750 | | Marine | | 77 Port Operations (Intership only) | |
| 156.9000 | | Marine | | 18A Commercial Active in Ocean City, MD | |
| 156.9250 | | Marine | | 78A Non-Commercial Active in Ocean City, MD | |
| 156.9500 | | Marine | | 19A Commercial Active in Ocean City, MD | |
| 156.9750 | | Marine | | 79A Commercial | |
| 157.0000 | | Marine | | 20 Port Operations (duplex) | |
| 157.0000 | | Marine | | 20A Port Operations | |
| 157.0250 | | Marine | | 80A Commercial | |
| 157.0500 | | Marine | | 21A U.S. Coast Guard only | |
| 157.0750 | | Marine | | 81A U.S. Government only - Environmental protection operations. | |
| 157.1000 | | Marine | | 22A Coast Guard Liaison and Maritime Safety Information Broadcasts. Broadcasts announced on channel 16. Police & USCG Ocean City, MD | |
| 157.1250 | | Marine | | 82A U.S. Government only | |
| 157.1500 | | Marine | | 23A U.S. Coast Guard only Police & USCG Ocean City, MD | |
| 157.1750 | | Marine | | 83A U.S. Coast Guard only | |
| 157.2000 | | Marine | | 24 Public Correspondence (Marine Operator) | |
| 157.2250 | | Marine | | 84 Public Correspondence (Marine Operator) 161.825 | |
| 157.2500 | | Marine | | 25 Public Correspondence (Marine Operator) | |
| 157.2750 | | Marine | | 85 Public Correspondence (Marine Operator) 161.875 | |
| 157.3000 | | Marine | | 26 Public Correspondence (Marine Operator) | |
| 157.3250 | | Marine | | 86 Public Correspondence (Marine Operator) 161.925 | |
| 157.3500 | | Marine | | 27 Public Correspondence (Marine Operator) | |
| 157.3750 | | Marine | | 87 Public Correspondence (Marine Operator) 161.975 | |
| 157.4000 | | Marine | | 28 Public Correspondence (Marine Operator) | |
| 157.4250 | | Marine | | 88 Public Correspondence only near Canadian border. 162.025 | |
| 157.5450 | | Taxi | | Harford Cab Company (Aberdeen) | |
| 157.6050 | | Taxi | | American Taxi Cab (Aberdeen), Valley Cab (Pikesville), Diamond Cabs (Glen Burnie). | |
| 157.6200 | | Harford Medical | | Fallston General Hospital | |
| 157.7100 | | Taxi | | Victory Cabs (Aberdeen) | |
| 159.2850 | | Harford Fire | | State D.N.R. - F-8 (Forest Fire Compact) | |
| 159.2850 | | MD Govt | | State D.N.R. - F-8 (Forest Fire Compact) | |
| 159.4500 | | MD Govt | | State D.N.R. | |
| 159.5550 | | Trucking | | L.G. Almony & Sons (Street) | |
| 160.2300 | | Railroad | | CSX Transportation | |
| 160.3200 | | Railroad | | CSX Transportation | |
| 160.5150 | | Railroad | | Amtrak | |
| 160.7850 | | Railroad | | CSX Transportation | |
| 160.9200 | | Railroad | | Amtrak | |
| 161.1000 | | Railroad | | CSX Transportation | |
| 161.6400 | | Media | | Bel Air Broadcasting Company | |
| 161.7000 | | Media | | Chesapeake Broadcasting Corporation | |
| 161.8250 | | Marine | | Marine Operator 84 161.825 | |
| 161.8750 | | Marine | | Marine Operator 85 161.875 | |
| 161.9250 | | Marine | | Marine Operator 86 161.925 | |
| 161.9750 | | Marine | | Marine Operator 87 161.975 | |
| 162.0250 | | Marine | | Marine Operator 88 162.025 | |
| 163.2500 | | Harford Medical | | Harford Memorial Hospital - Paging | |
| 164.8630 | | Harford Govt | | County Civil preparedness (FEMA) | |
| 165.6630 | | Harford Govt | | County Civil preparedness (FEMA) | |
| 173.3900 | | Harford Govt | | County Water & Sewer Department - Telemetry | |
| 173.3900 | | Utilities | | Harford County Water & Sewer Department - Telemetry | |
| 223.9600 | | Harford Rpt | | - N3EKQ in Hickory | |
| 224.9200 | | Harford Rpt | | - N3UR in Shawsville | |
| 228.4000 | | Aviation | | Weide A.A.F. - Approach/Departure | |
| 229.6000 | | Aviation | | Phillips A.A.F. - Tower | |
| 241.0000 | | Aviation | | Phillips A.A.F. - Tower | |
| 241.0000 | | Aviation | | Weide A.A.F. - Army | |
| 307.9000 | | Aviation | | Phillips A.A.F. - Approach/Departure | |
| 307.9000 | | Aviation | | Weide A.A.F. - Approach/Departure | |
| 413.4750 | | Harford Fire | | Aberdeen Proving Ground - Fire Department (Crash Trucks, Medics - Channel 9) | |
| 416.1000 | | Harford Fire | | Aberdeen Proving Ground - Fire Department - (Dispatch) | |
| 417.9500 | | Harford Fire | | Aberdeen Proving Ground - Fire Department/Emergency Operations | |
| 448.4750 | | Harford Rpt | | - N3UR in Jarrettsville | |
| 449.3750 | | Harford Rpt | | - W3EHT in Shawsville | |
| 449.7750 | | Harford Rpt | | - WA3PFT in Hickory (PL 97.4) | |
| 449.8250 | | Harford Rpt | | - WA3SFJ in Havre de Grace | |
| 450.4875 | | Media | | Metro Traffic base | |
| 450.5870 | | Media | | Mackk Broadcasting Company | |
| 451.0500 | | Harford Govt | | Havre De Grace Municipal Utilities | |
| 451.0500 | | Utilities | | Havre De Grace Municipal Utilities | |
| 453.0130 | | Harford Govt | | County Services | |
| 453.0130 | | Harford Police | | County Sheriff - F-9 (Surveillance/Special Response Team - not in all portables) | |
| 453.1630 | | MD Govt | | State Services | |
| 453.5500 | | Harford Police | | Bel Air Town Police - F-1/2 (Dispatch/Talkaround)(PL 136.5) | |
| 453.7250 | | HazMat | | HazMat Channel 7 | |
| 453.8000 | | Harford Police | | Aberdeen Town Police - F-1/2 (Dispatch/Talkaround)(PL 162.2) | |
| 453.8250 | | Harford Govt | | Havre De Grace Municipal Services - F-1/2 (PL 141.3) | |
| 453.9500 | | Harford Govt | | County Animal Control/Licenses & permits (DPL 123) | |
| 458.5500 | | Harford Police | | Bel Air Police | |
| 458.9620 | | MD Govt | | State D.O.T. | |
| 460.0500 | | Harford Police | | State Police - Metro Mutual Aid Net | |
| 460.0750 | | Harford Police | | County Sheriff - F-2 (input 465.075) (PL 192.8) | |
| 460.0750 | | Harford Police | | County Sheriff - F-6 (Admin-6) | |
| 460.1250 | | Harford Police | | County Sheriff - F-4 (Tac-1 - has encryption capabilities)(input 465.125) (PL 192.8) | |
| 460.1250 | | Harford Police | | County Sheriff - F-8 (Tac-2 - has encryption capabilities) | |
| 460.1630 | | Harford Police | | Aberdeen Town Police | |
| 460.2250 | | Harford Police | | Havre De Grace City Police - F-1/2 (Dispatch/Talkaround)(PL 136.5) | |
| 460.3000 | | Harford Police | | Aberdeen Town Police - Mutual Aid (PL 192.8) | |
| 460.3000 | | Harford Police | | Bel Air Town Police - F-3 (Mutual Aid)(PL 192.8) | |
| 460.3000 | | Harford Police | | County Sheriff - F-3 (Interagency/special events/phone patch)(input 465.300) (PL 192.8) | |
| 460.3000 | | Harford Police | | Havre De Grace City Police - F-3 (Mutual Aid)(PL 192.8) | |
| 460.3750 | | Harford Police | | County Sheriff - F-1 (Dispatch/primary)(input 465.375) (PL 192.8) | |
| 460.3750 | | Harford Police | | County Sheriff |
