General System Info

NXDN 4800 Network/SysID 50 (32 HEX)

Site 01 Delaware City Refinery DE
Site 02 Booths Corner PA
Site 03 Philadelphia PA
Site 04 Theodore MD
Site 05 Frederica DE
Site 06 Millsboro DE
Site 07 Federalsburg MD
Site 08 Dover DE
Site 09 Towson MD
Site 10 Wyndmoor PA
Site 11 Bethesda MD	(Confirmation Needed)
Site 12 Wilmington DE
Site 14 Wrangle Hill DE
Site 15 Philadelphia PA (Deprecated)
Site 16 Waterford Works NJ
Site 17 Corbin City NJ
Site 18 Milmay NJ	(Confirmation Needed)
Site 19 Tinton Falls NJ
Site 20 Paulsboro NJ
Site 21 Smyrna DE	
Site 22 Newtown Square PA	

System Note: NXDN Channel's RAN (Radio Access Number) matches the DEC Site ID#  (1-63)

Channel Equations

This info may help you figure out the channel scheme for this system.

It is a guide only, use at your own risk :)

For more detailed explanations follow the link at the bottom of this page.

For Channels 1 to 400: (Confirmed to be correct)
Freq = 451 + (( Ch# - 1 ) * 0.00625 )

There are 2 equations known for 401 to 999: (either may or may not work)

For Channels 401 to 999: (Formula 1 Seems to work reliably above 461.63125)
Freq = 461.63125 + (( Ch# - 401 ) * 0.00625 )

For Channels 401 to 999: (Formula 2 Seems to work above 461.14375 if the first equation doesn't)
Freq = 461.14375 + (( Ch# - 401 ) * 0.00625 )

For Channels 1000 to 1023
500 MHz Custom Band Plan

See notations for each site to determine the correct formula for 401-999 CH's (Not all sites have been verified to use Formula 1 or 2, or either)

Site Details

Site 01 Delaware City Refinery

New Castle County DE (Wrangle Hill) WQJV313/WQKA640 Uses Formula 1 & Custom Band Plan

NL: 2 4 8 21 (08/16/2019) CH#'s 890 902 1002 1003 1004 1006 1007 1008 1009 (previously reported sites 5 14)
462.137500 482 RAN=1
464.687500 890 RAN=1
464.762500 902 RAN=1
501.475000 1001? RAN=1
501.687500 1006 RAN=1
501.800000 1002 RAN=1 CC
501.937500 1007 RAN=1
502.112500 1003 RAN=1 CC
502.237500 1008 RAN=1
502.337500 1004 RAN=1
502.437500 1009 RAN=1 CC

Site 02 Booths Corner

Delaware County PA WPKM962/WQJV354/WQTX740

NL: 1 3 4 5 10 12 (08/16/2019) CH#'s 33 69 442 669 1011 1012 (previously reported sites 16 20)
451.125000 21 RAN=2
451.200000 33 RAN=2 CC
451.425000 69 RAN=2
461.075000 413 RAN=2
461.225000 437 RAN=2
461.400000 442 RAN=2
461.750000 420 RAN=2
461.950000 452 RAN=2
461.981250 457 RAN=2
462.025000 464 RAN=2
462.150000 484 RAN=2
462.425000 528 RAN=2
462.537500 546?/624? RAN=2
462.737500 578?/656?/1021? RAN=2
463.293750 667 RAN=2
463.300000 668 RAN=2
463.306250 669 RAN=2
463.556250 709 RAN=2
463.743750 739 RAN=2
464.856250 917 RAN=2
501.462500 1012 RAN=2 CC
501.487500 0 RAN=2
502.137500 1011 RAN=2 CC
502.275000 0 RAN=2

Site 03 Philadelphia

Philadelphia County PA WPKM962/WQJV354/WQTX740/WIK575/WPRJ752/WRBM433

NL: 2 10 15 16 18 20 (05/06/2018) CH#'s 316 1014 1015 1017 1019
451.125000 21 RAN=3
452.275000 205 RAN=3
452.500000 241 RAN=3
461.250000 0 RAN=3
461.812500 0 RAN=3
462.400000 524 RAN=3
462.500000 540 RAN=3
462.537500 546?/624? RAN=3
463.300000 668 RAN=3
464.662500 886 RAN=3
464.800000 908 RAN=3
464.912500 926 RAN=3
500.762500 0 RAN=3
501.087500 0 RAN=3
501.462500 1012 RAN=3
501.487500 0 RAN=3 CC
501.925000 0 RAN=3
501.950000 0 RAN=3
502.200000 0 RAN=3
502.212500 0 RAN=3
502.225000 0 RAN=3
506.337500 1019 RAN=3
506.700000 1014 RAN=3
506.975000 1015 RAN=3
507.475000 0 RAN=3
507.900000 1017 RAN=3 CC
508.250000 0 RAN=3

Site 04 Theodore

Cecil County MD (Rising Sun) WQFF501/WPVS931/WQTX740 Uses Formula 1

NL: 1 2 5 7 8 9 14 21 (05/26/2020) CH#'s 37 213 321 693 736 (CC's rotate every 12 hours 4:20 AM)
451.225000 37 RAN=4 CC
451.268750 44 RAN=4
451.575000 93 RAN=4
452.325000 213 RAN=4 CC
453.000000 321 RAN=4
461.125000 0 RAN=4
461.200000 0 RAN=4
461.675000 0 RAN=4
461.900000 444 RAN=4
462.025000 464 RAN=4
462.537500 546?/624? RAN=4
462.737500 578?/656?/1021? RAN=4
463.456250 693 RAN=4
463.725000 736 RAN=4
464.175000 808 RAN=4
464.400000 844 RAN=4
464.637500 882 RAN=4

Site 05 Frederica

Kent County DE WPZS815/WPLF652 Uses Formula 2

NL: (need neighbor list)
CC reported to be CH#'s 135, 480
451.837500 135 RAN=5 CC
461.387500 440 RAN=5 CC
461.637500 0 RAN=5
461.700000 490 RAN=5
462.100000 554 RAN=5
462.125000 480 RAN=5 CC
463.400000 762 RAN=5
463.600000 794 RAN=5
463.950000 850 RAN=5
464.275000 902 RAN=5

Site 06 Millsboro

Sussex County DE (Eastern Shore) WPLG454 Uses Formula 2

NL: (need neighbor list)
451.787500 127 RAN=6
452.237500 199 RAN=6
452.737500 279 RAN=6
460.850000 0 RAN=6
462.531250 623 RAN=6
463.300000 746 RAN=6
463.825000 830 RAN=6 CC
464.125000 878 RAN=6
464.587500 952 RAN=6
464.850000 994 RAN=6

Site 07 Federalsburg

Caroline County MD (Nicholas) WPLG454

NL: (need neighbor list)
CC reported to be CH# 196
451.268750 44 RAN=7 CC
451.793750 128 RAN=7 CC
451.906250 146 RAN=7
451.993750 160 RAN=7
452.218750 196 RAN=7 CC
452.368750 220 RAN=7
452.743750 280 RAN=7

Site 08 Dover

Kent County DE WPLI278 (For former Aberdeen site 8 see details further down this page) Uses Formula 2

NL: (reported by sites 1, 4, 16, 21 as a neighbor) CH#'s 671 703 757
463.318750 671 RAN=8 CC
463.518750 703 RAN=8 CC
463.856250 757 RAN=8 CC
464.156250 805 RAN=8
464.631250 881 RAN=8

Site 09 Towson

Baltimore County MD WQFF501/WQTX740

NL: 4 7 (08/16/2019) CH#'s 4 20 222 (previously reported site 8) Uses Formula 1
451.006250 2 RAN=9
451.018750 4 RAN=9 CC
451.118750 20 RAN=9
452.381250 222 RAN=9
461.456250 451 RAN=9
461.718750 415 RAN=9
461.831250 433 RAN=9
462.537500 546?/624? RAN=9
462.737500 578?/656?/1021? RAN=9

Site 10 Wyndmoor

Montgomery County PA WPKM962/WQTX740

NL: 2 3
451.068750 12 RAN=10
451.793750 128 RAN=10
453.018750 324 RAN=10
462.018750 463 RAN=10
462.737500 1021 RAN=10 CC 578?/656?/1021 confirmed
463.218750 655?/733? RAN=10

Site 11 Bethesda

Montgomery County MD WQWR386

NL: (No verification's of this site)
451.006250 2 RAN=11
451.012500 3 RAN=11
462.537500 546?/624? RAN=11
462.737500 578?/656?/1021? RAN=11

Site 12 Wilmington

New Castle County DE WQFF501 Uses Formula 1

NL: 1 2 (08/30/2019) CH#'s 204 735 (previously reported sites 4 14)
452.268750 204 RAN=12
463.718750 735 RAN=12 CC

Site 14 Wrangle Hill

New Castle County DE WQFF501 Uses Formula 1

NL: 1 2 4 12 21 (01/06/2024) CH#'s 6 202 316? 369? 495 727? 741? 1023
451.031250 6 RAN=14
452.256250 202 RAN=14
461.731250 495 RAN=14 CC
462.943750 1023 RAN=14
463.668750 727? RAN=14
463.756250 741? RAN=14

Site 15 Philadelphia

Philadelphia County PA KGA589 Uses Custom Band Plan (Reported Offline/Deprecated 08/09/2024 From RRDB)

NL: 2 3 10 16 18 (04/15/2019)
454.40000 959 RAN=15
454.42500 960 RAN=15 CC
454.47500 961 RAN=15
454.50000 962 RAN=15
454.57500 963 RAN=15
454.60000 964 RAN=15 CC

Site 16 Waterford Works

Camden County NJ WNUH622/WIK575

NL: 2 3 8 15 17 18 19 (04/16/2019)
461.43125 447 RAN=16
461.69375 489 RAN=16
462.04375 545 RAN=16
463.46875 695 RAN=16
463.95625 773 RAN=16 CC
464.45000 852 RAN=16
500.76250 0 RAN=16
501.08750 0 RAN=16
501.81250 0 RAN=16
501.91250 0 RAN=16
501.92500 0 RAN=16
501.93750 1007 RAN=16
501.95000 0 RAN=16
501.96250 0 RAN=16
502.20000 0 RAN=16
502.21250 0 RAN=16
502.22500 0 RAN=16
502.23750 1008 RAN=16
502.33750 1004 RAN=16
502.38750 0 RAN=16
502.88750 0 RAN=16
502.93750 0 RAN=16
502.98750 0 RAN=16

Site 17 Corbin City

Atlantic County NJ WNUH622/WPKM962/WQPB881

NL: (need neighbor list/reported by sites 16 & 19 as a neighbor)
451.068750 12 RAN=17
451.162500 27 RAN=17
451.212500 35 RAN=17
451.793750 128 RAN=17
451.850000 137 RAN=17
452.225000 197 RAN=17
452.387500 223 RAN=17
461.412500 0 RAN=17
461.456250 451 RAN=17 CC
461.487500 0 RAN=17
461.943750 529 RAN=17 CC
462.162500 486 RAN=17
462.475000 536 RAN=17
462.525000 544 RAN=17
463.787500 746 RAN=17
463.912500 766 RAN=17
464.906250 925 RAN=17

Site 18 Milmay

Atlantic County NJ WQLA932

NL: (reported by sites 15 & 19 as a neighbor)
451.131250 22 RAN=18
451.843750 136 RAN=18
452.262500 201 RAN=18
453.006250 322 RAN=18
453.012500 323 RAN=18
461.512500 0 RAN=18
462.037500 466 RAN=18
464.737500 898 RAN=18
464.743750 899 RAN=18
464.868750 919 RAN=18

Site 19 Tinton Falls

Monmouth County NJ WQLA932

NL: 16 17 18
451.043750 8 RAN=19 CC
451.106250 18 RAN=19
451.118750 20 RAN=19 CC
451.143750 24 RAN=19
451.981250 158 RAN=19

Site 20 Paulsboro

Gloucester County NJ WQWR386/WQJV313 Uses Formula 1

NL: (reported by Sites 2 & 3 as a neighbor)
CC reported to be CH# 8
451.043750 8 RAN=20 CC
451.956250 154 RAN=20
461.393750 441 RAN=20
462.537500 546?/624? RAN=20
464.843750 915 RAN=20

Site 21 Smyrna

Kent County DE WPLI278

NL: 1 2 4 5 8 (08/30/2019) CH#'s 394, 490
461.100000 394 RAN=21 CC Uses Custom Formula
461.325000 430? RAN=21
461.481250 455? RAN=21
461.700000 490 RAN=21 CC Uses Formula 2

Site 22 Newtown Square

Delaware County PA WPRJ752 Uses Formula 1

NL: 2 3 10 15 (07/18/2020)
CC reported to be CH#'s 22, 370
451.018750 4 RAN=22
451.131250 22 RAN=22 CC
451.268750 44 RAN=22
452.206250 194 RAN=22
460.950000 370 RAN=22 CC

Potential/Former Site Locations

(Former Site 08) Aberdeen / Harford MD WQFF501 Used Formula 1
- NL: 4 9 (04/26/2018) CH# 731
  - (CH 731 is offline) Site 8 has moved to Dover. These are currently silent.
- 451.043750 8 RAN=
- 461.518750 0 RAN=
- 461.818750 431 RAN=
- 463.506250 701 RAN=
- 463.693750 731 RAN= CC
Lawrence Township (Princeton) / Mercer NJ WPQB251 Homan Communications Possibly Site 15 location
- 500.575000 0 RAN=
- 501.450000 0 RAN=
- 501.475000 0 RAN=
- 501.887500 0 RAN=
- 502.062500 0 RAN=
- 502.450000 0 RAN=
Reading / Berks PA WQWR386
- (no signals have been detected from this location as of 04/26/2018)
- 462.537500 546?/624? RAN=
Washington / DC WQTX740
- (No verification's of this site)
- 451.012500 0 RAN=
- 462.537500 546?/624? RAN=
- 462.737500 578?/656?/1021? RAN=

Channel Numbers

ch 004 451.01875 Towson WQFF501
ch 008 451.04375 Tinton Falls WQLA932/Paulsboro WQJV313
ch 018 451.10625 Tinton Falls WQLA932
ch 020 451.11875 Tinton Falls WQLA932
ch 024 451.14375 Tinton Falls WQLA932
ch 033 451.20000 Booths Corner WPKM962
ch 037 451.22500 Theodore WQFF501
ch 044 451.26875 Federalsburg WPLG454
ch 069 451.42500 Booths Corner WPKM962
ch 127 451.78750 Millsboro WPLG454
ch 135 451.83750 Frederica WPLF652
ch 158 451.98125 Tinton Falls WQLA932
ch 196 452.21875 Federalsburg WPLG454
ch 199 452.23750 Millsboro WPLG454
ch 213 452.32500 Theodore WQFF501
ch 316 ? Philadelphia
ch 321 453.00000 Theodore WQFF501
ch 394 461.10000 Smyrna WPLI278 (using custom? equation)
ch 402 461.63750 Frederica WPZS815
ch 412 461.70000 Frederica WPZS815
ch 440 461.38750 Frederica WPZS815 (using 2nd 401-999 equation)
ch 442 461.40000 Booths Corner WPKM962 (using 2nd 401-999 equation)
ch 447 461.42500 Waterford Works (using 2nd 401-999 equation)
ch 451 461.45625 Corbin City WNUH622
ch 476 462.10000 Frederica WPLF652
ch 484 462.15000 Booths Corner WPKM962
ch 490 461.70000 Smyrna WPLI278 (using 2nd 401-999 equation)
ch 495 461.73125 Newark WQFF501 (using 2nd 401-999 equation)
ch 529 461.94375 Corbin City WNUH622
ch 668 463.30000 Millsboro WPLG454
ch 669 463.30625 Booths Corner WPKM962
ch 684 463.40000 Frederica WPLF652
ch 693 463.45625 Theodore WQFF501
ch 727 463.66875 Newark WQFF501
ch 731 463.69375 Aberdeen WQFF501
ch 735 463.71875 Wilmington WQFF501
ch 736 463.72500 Theodore WPVS931
ch 752 463.82500 Millsboro WPLG454
ch 874 464.58750 Millsboro WPLG454
ch 890 464.68750 Delaware City WQJV313
ch 902 464.76250 Delaware City WQJV313
ch 959 454.40000 Philadelphia Site 15 KGA589
ch 960 454.42500 Philadelphia Site 15 KGA589
ch 961 454.47500 Philadelphia Site 15 KGA589
ch 962 454.50000 Philadelphia Site 15 KGA589
ch 963 454.57500 Philadelphia Site 15 KGA589
ch 964 454.60000 Philadelphia Site 15 KGA589
ch 1002 501.80000 Delaware City WQKA640
ch 1003 502.11250 Delaware City WQKA640
ch 1004 502.33750 Delaware City WQKA640
ch 1006 501.68750 Delaware City WQKA640
ch 1007 501.93750 Delaware City WQKA640
ch 1008 502.23750 Delaware City WQKA640
ch 1009 502.43750 Delaware City WQKA640
ch 1011 502.13750 Booths Corner WQJV354
ch 1012 501.46250 Booths Corner WQJV354
ch 1014 506.70000 Philadelphia Site 3 WQJV354
ch 1015 506.97500 Philadelphia Site 3 WQJV354
ch 1017 507.90000 Philadelphia Site 3 WQJV354
ch 1019 506.33750 Philadelphia Site 3 WQJV354
ch 1021 462.73750 Wyndmoor WQTX740 (This one is questionable)

Fleetcall Frequencies and Site Research

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