Jump to content

Frequencies: Difference between revisions

From Archive
← Older edit
Claude (talk | contribs)
Bots, Administrators
403 edits
No edit summary
Add frequency band overview with visual mnemonics
 
(One intermediate revision by the same user not shown)
Line 2: Line 2:


''Radio frequency reference for Hudson Valley region monitoring and communications''
''Radio frequency reference for Hudson Valley region monitoring and communications''
== Frequency Bands Overview ==
''Visual mnemonics for remembering the major radio bands.''
=== AM (Amplitude Modulation) — 540 to 1600 kHz ===
'''Mnemonic:''' "Five 40-ounce bottles lined up next to 16 empty six-packs."
Picture a weathered radio host stacking five big 40-ounce bottles and then a cluster of six-packs adding up to 16, representing 1600 kHz. AM signals feel both retro and crowded.
=== Shortwave — 3 to 30 MHz ===
'''Mnemonic:''' "3 pirates with 30 treasure chests."
Imagine three seafaring pirates huddling over a radio and tuning into shortwave, with 30 chests of treasure stacked around them. Shortwave's global reach connects far-off places like mysterious treasures.
=== VHF (Very High Frequency) — 30 to 300 MHz ===
'''Mnemonic:''' "A flock of 30 Vultures circling 300 feet high."
Imagine 30 vultures circling at exactly 300 feet, keeping watch over land and sky. VHF is versatile—perfect for air traffic and marine communications.
=== UHF (Ultra High Frequency) — 300 MHz to 3 GHz ===
'''Mnemonic:''' "300 pigeons in an urban grid, all delivering 3 messages."
A dense grid of 300 city pigeons, each carrying 3 messages in short bursts. Aligns with UHF's short-range, dense communication abilities in urban environments.
=== Microwave — 1 GHz to 300 GHz ===
'''Mnemonic:''' "1 giant laser beam for 300 yards."
A massive laser that shoots out 1 yard wide and extends 300 yards forward. Microwaves are like laser beams—highly directional and precise, line-of-sight nature.
----


== Amateur Radio ==
== Amateur Radio ==
Line 325: Line 356:


[[Category:Technical]] [[Category:Amateur Radio]] [[Category:Emergency Communications]]
[[Category:Technical]] [[Category:Amateur Radio]] [[Category:Emergency Communications]]
{{Navbox Ham Radio}}

Latest revision as of 14:01, 18 January 2026

Radio Frequencies

Radio frequency reference for Hudson Valley region monitoring and communications

Frequency Bands Overview

Visual mnemonics for remembering the major radio bands.

AM (Amplitude Modulation) — 540 to 1600 kHz

Mnemonic: "Five 40-ounce bottles lined up next to 16 empty six-packs."

Picture a weathered radio host stacking five big 40-ounce bottles and then a cluster of six-packs adding up to 16, representing 1600 kHz. AM signals feel both retro and crowded.

Shortwave — 3 to 30 MHz

Mnemonic: "3 pirates with 30 treasure chests."

Imagine three seafaring pirates huddling over a radio and tuning into shortwave, with 30 chests of treasure stacked around them. Shortwave's global reach connects far-off places like mysterious treasures.

VHF (Very High Frequency) — 30 to 300 MHz

Mnemonic: "A flock of 30 Vultures circling 300 feet high."

Imagine 30 vultures circling at exactly 300 feet, keeping watch over land and sky. VHF is versatile—perfect for air traffic and marine communications.

UHF (Ultra High Frequency) — 300 MHz to 3 GHz

Mnemonic: "300 pigeons in an urban grid, all delivering 3 messages."

A dense grid of 300 city pigeons, each carrying 3 messages in short bursts. Aligns with UHF's short-range, dense communication abilities in urban environments.

Microwave — 1 GHz to 300 GHz

Mnemonic: "1 giant laser beam for 300 yards."

A massive laser that shoots out 1 yard wide and extends 300 yards forward. Microwaves are like laser beams—highly directional and precise, line-of-sight nature.

Amateur Radio

Local Repeaters - Mt. Beacon Area

Frequency Call Sign Location Offset PL Tone Band
53.31 K2ROB/R Beacon +1.0 114.8 6m Primary ARC
146.895 N2EYH/R Millbrook +0.6 100.0 2m
146.97 N2FZC/R Beacon -0.6 100.0 2m
147.045 N2OXV/R Highland +0.6 100.0 2m
223.92 W2GIO/R Beacon +1.6 100.0 1.25m
440.3125 KC2OBW/R Highland +5.0 - 70cm
449.575 WA2GZW/R Beacon +5.0 100.0 70cm
449.975 N2DXL/R Clove +5.0 88.5 70cm
921.2 N2HPA/R Beacon -25 100.0 33cm

Emergency Services

Fire Dispatch

Frequency Service Location Notes
154.205 Orange County FD Orange County Paging
154.31 Middletown FD Battalion 1 Dispatch
151.5575 Eastern OC Fire Eastern Orange Paging
156.015 Kiryas Joel FD Kiryas Joel FD1
453.15 Cronomer FD Cronomer Valley Local dispatch
154.34 Newburgh FD Newburgh FD1
46.2 Tioga County FD Tioga County FD1
453.35 Tioga County FD Tioga County Dispatch
46.36 Dutchess County FD Dutchess County Pagers
453.9 Dutchess County FD Dutchess County Dispatch
154.235 Kingston Fire Kingston Local
46.46 Ulster County Fire Ulster County Cmd/Response

Law Enforcement

Frequency Service Coverage Notes
470.6875 NYPD Citywide CW 1
470.7125 NYPD Citywide CW 2
470.8625 NYPD Citywide CW 3
470.8875 NYPD Citywide CW 4
470.8375 NYPD Citywide SOD
158.76 Tioga Sheriff Tioga County 1/2
155.52 Tioga Sheriff Tioga County 3
155.64 Dutchess County SO Dutchess County Dispatch
155.415 Dutchess 911 Dutchess County Dispatch
155.025 Ulster 911 Ulster County Dispatch
155.9325 Ulster County SO Ulster County Dispatch

EMS Dispatch

Frequency Service Location Notes
157.45 Orange County EMS Orange County Paging
156.165 Greenwood Lake EMS Greenwood Lake Dispatch
155.955 Kiryas Joel EMS Kiryas Joel Local EMS
150.845 New Windsor EMS New Windsor Dispatch
159.72 Montgomery EMS Montgomery Local
155.22 Tuxedo EMS Tuxedo Local
160.1175 Woodbury EMS Woodbury Local
158.94 Highlands EMS Highlands Local
152.315 Candor Ambulance Candor Local
155.295 Empress EMS Tioga County Countywide
462.95 MED-9 Regional Medical UHF
462.975 MED-10 Regional Medical UHF

NYC Fire/EMS (Digital P25)

FDNY Dispatch

Frequency Service Borough Notes
482.00625 FDNY Dispatch Bronx Digital
482.01875 FDNY Dispatch Brooklyn Digital
482.10625 FDNY Dispatch Manhattan Digital
482.03125 FDNY Dispatch Queens Digital
482.04375 FDNY Dispatch Staten Island Digital
482.23125 FDNY CW1 Citywide Digital
483.38125 FDNY CW2 Citywide Digital

NYC EMS Dispatch

Frequency Service Area Notes
483.20625 EMS Dispatch Bronx North Digital
482.76875 EMS Dispatch Bronx South Digital
482.50625 EMS Dispatch Brooklyn Central Digital
483.28125 EMS Dispatch Brooklyn North Digital
482.98125 EMS Dispatch Manhattan Central Digital
482.75625 EMS Dispatch Manhattan North Digital
483.03125 EMS Dispatch Queens East Digital
482.51875 EMS Dispatch Queens West Digital
482.24375 EMS Dispatch Staten Island Digital
482.16875 EMS CW1 Citywide Digital
482.21875 EMS CW2 Citywide Digital

Interoperability Channels

VHF Tactical

Frequency Channel Usage Notes
151.1375 VTAC11 VHF Tactical Common use
154.4525 VTAC12 VHF Tactical Common use
155.7525 VCALL10 VHF Calling High priority

UHF Tactical

Frequency Channel Usage Notes
453.2125 UCALL40 UHF Calling National
453.4625 UTAC41 UHF Tactical Common
453.7125 UTAC42 UHF Tactical Common
453.8625 UTAC43 UHF Tactical Emergency

800MHz Tactical

Frequency Channel Usage Notes
851.0125 8CALL90 800MHz Calling National
851.5125 8TAC91 800MHz Tactical Primary
852.0125 8TAC92 800MHz Tactical Secondary
852.5125 8TAC93 800MHz Tactical Emergency
853.0125 8TAC94 800MHz Tactical Emergency

Federal/FEMA

FEMA Operations

Frequency Service Usage Notes
406.2625 FEMA 1/2 Primary Ops Major disasters
407.0625 FEMA 3/4 Tactical Ops Major disasters
407.6625 FEMA 5/6 Command Ops Major disasters
410.8625 MERS 9/10 Mobile Response Major incidents
407.45 MERS 11/12 Mobile Command Response ops
408.0625 MERS 13/14 Mobile Tactical Response ops

Medical/SAR

Frequency Service Usage Notes
406.8625 NDMS 1/2 Medical System Primary
407.4625 NDMS 5/6 Medical Response Tactical
409.075 NDMS 7/8 Medical Response Command
408.8625 USAR 1/2 Urban SAR Primary
409.2625 USAR 3/4 Urban SAR Tactical
409.6625 USAR 5/6 Urban SAR Command
409 DMAT Disaster Medical Team ops

Consumer Radio

GMRS (License Required)

Channel Frequency Power Usage
15 462.550 50W Repeater/Simplex
16 462.575 50W Repeater/Simplex
17 462.600 50W Repeater/Simplex
18 462.625 50W Repeater/Simplex
19 462.650 50W Repeater/Simplex
20 462.675 50W Repeater/Simplex
21 462.700 50W Repeater/Simplex
22 462.725 50W Repeater/Simplex

FRS (License Free)

Channel Frequency Power Shared
1 462.5625 2W GMRS/FRS
2 462.5875 2W GMRS/FRS
3 462.6125 2W GMRS/FRS
4 462.6375 2W GMRS/FRS
5 462.6625 2W GMRS/FRS
6 462.6875 2W GMRS/FRS
7 462.7125 2W GMRS/FRS
8-14 467.5625-467.7125 0.5W FRS Only

MURS (License Free)

Channel Frequency Power Bandwidth
1 151.820 2W 11.25kHz
2 151.880 2W 11.25kHz
3 151.940 2W 11.25kHz
4 154.570 2W 20kHz
5 154.600 2W 20kHz

Scanner Programming Notes

Digital Systems

  • NYC - P25 Phase II digital (requires compatible scanner)
  • Orange County - Mixed analog/digital
  • Dutchess County - Primarily analog
  • Ulster County - Mixed systems

Equipment

  • Wide Coverage - Uniden BCD536HP/BCD436HP for P25
  • Amateur Only - Yaesu FT-60R, Baofeng UV-5R
  • GMRS - Midland, Wouxun, BTech radios
  • Monitoring - Generally legal for most frequencies
  • Recording - Check local/state laws
  • Transmission - License required for amateur/GMRS
  • Encryption - Cannot legally decrypt

Frequencies verified November 2024 • Monitor responsibly • Respect privacy


📻 Ham Radio & RF
Core Ham Radio · Study Guide · Frequencies
Equipment HackRF · Meshtastic · Flipper Zero
Projects NOAA Satellites · Emergency Communications
Operations Field Operations · Field Kit
Retrieved from "https://archive.ejfox.com/index.php?title=Frequencies&oldid=442"