Keep in mind that various portions of the 75/80 meter band are shared in much of the world, and so most of these utilities are probably not "intruders" to the amateur spectrum. The band gets especially heavy utility use in Europe.
3500.00 "2016" J7D ALE
3530.00 Russian Navy F1B Idles 36.6/50 Bd
3532.00 Mil B7D Link-11
3553.80 Mil G7D 2400 Bd STANAG 4285
3555.00 Fishermen J3E
3555.80 Mil F1B 149.55 Bd ARQ
3560.00 Spanish Fishermen J3E
3572.00 PDK33 G1D 4 Phase QPSK DGPS
3578.96 DK0WCY (Kiel) A1B AT Propagation Beacon
3593.70 D Beacon A1A Morse [MX]
3593.90 S Beacon A1A Morse [MX]
3608.00 ? F1B 50 Bd RTTY
3626.50 FDI22 F1B 50 Bd ITA2
3676.00 ? F1B Secure
3681.00 Mil A1A 5 LTR GPS
3688.00 Mil A1A
3690.00 Spanish Fishermen J3E
3699.50 P Beacon A1A CW Marker
3699.50 Mil? F1B 50 Bd
3699.50 P A1A CW [MX]
3705.00 ? A1A Letters
3712.00 Mil B7D Link-11
3731.50 Mil G7D 2400 Bd STANAG 4285
3736.00 Russia? J7D 120 Bd MS5
3756.00 The 'Pip' A2X Status Monitor [XT/S30]
3764.40 PBB F1B
3764.41 PBH F1B
3764.42 PBA F1B
3772.00 P Beacon A1A Russian Mil
3782.00 CTP (Ories) F1B 75 Bd ITA2
3787.50 FDI22 F1B 50 Bd ITA2
3800.00 Fishermen J3E
3802.50 Mil J7D 125 Bd (ALE?)
3811.00 ZMLG A1A Mil CW
3813.00 Fishermen J3E
3813.50 ? B7D 75 Bd
3814.49 FDI22 (Narbonne) F1B 50 Bd ITA2
3815.00 Mil G7D 44.44 Bd 39 TONE
3822.00 Mil G7D 2400 Bd STANAG 4285
3824.00 ? J7D 120 Bd
3824.50 ? J7D 120 Bd MS5
3825.00 Dutch Fishermen J3E North Sea
3831.00 Cyrano J3E
3840.00 YHF R3E [E10]
3843.00 Dutch Fishermen J3E North Sea
3843.80 Fishing? F1B 100 Bd Secure
3843.81 ? F1B 46.2 Bd
3855.00 DDH3 (Hamburg) F1C Meteo Fax 120RPM
3857.00 Mil G7D 2400 Bd STANAG 4285
3864.00 Mil G7D 2400 Bd STANAG 4285
3870.00 Mil G7D STANAG 4285
3881.04 FAV22 A1A French Morse Practice
3890.00 UQB A1A Russia
3894.00 RFI A1A Russia
3898.00 Mil G7D 2400 Bd STANAG 4285
3900.00 Reykjavik J7D HFDL 1800 Bd
3902.00 Fishermen J3E
3905.00 Spanish Fisherman J3E
3906.50 ? F1B 100 Bd
3916.50 Mil G7D 2400 Bd STANAG 4285
3955.00 HCJB A3E Ecuador
