Home | The Radioman's Job | My Receivers | Mill | Point to Point | My Transmitters | Remote Control | Radiotelephone | Portables | Test Equipment | Frequencies | Training | Procedures | Museum Activities | Museum Ships | On the Air Activities | Navy Television | Men Who Lived It | Resources | Hints and Kinks | Wanted | Contact Me

NOTE - This is a re-creation of Rob Flory's original site which crashed some time ago - unfortunately some photos are still missing but most of the text is here - if you can help with any replacement photos, please send e-mail to Rob or to Nick K4NYW

Click here for Nick's 1950's-60's Navy Radio Pages -


From Extracts, Communications Instructions USN 1944, Marine Operational Training Group-81, MCAS Edenton, N.C.
2121.  A call sign is a group of letters, numerals, or both, assigned to an activity to represent that activity in the headings of messages.
a. An individual call sign is a call sign representing a single station, unit, command, or other activity.
b. A collective call sign is a single call sign representing two or more individual call signs.
c. A net or group call sign is a collective call sign covering all stations in a net or group on the same frequency.
d. An indefinite call sign is one which indicates no specific station and may represent any station or any of a group of stations.
2122.  U.S. Navy call signs are assigned in accordance with the following plan:
a. Three-letter N calls represent shore radio stations.  A three-letter N call with a numeral preceding or following represents a subassignment within the area controlled by a major shore station.
b. Four-letter N calls represent ships.  A portable station under the control of a naval vessel has the call of the vessel with a numeral added.
c. Letter-numeral-letter calls denote units which have facilities for answering calls direct.
d. Four-letter pronounceable calls, other than those starting with N, represent shore stations or units which do not have facilities for answering calls direct.
e. Five-letter N calls represent aircraft.
f. Call signs consisting of two, three, or four numerals plus a letter are assigned by blocks to aircraft.
g. Other combinations of letters, numerals, or both are used as visual call signs for ships, aircraft, tactical organizations, and task forces.
h. Further information regarding assignment of call signs will be found in the U.S. Navy Call Sign Book.

A shore party from the USS New Jersey might sign NEPP2.
A marine unit running fire control might fall into category c.
More information from veterans or printed material is desired.


NAA       Arlington, VA
NSS        Annapolis, MD
NBA       Balboa, Canal Zone
NPG       San Francisco, CA
NBL        New London, CT
NMN      Norfolk, VA
NPO       Cavite, Philippines
NPY       Pearl Harbor, HI (Submarine)
NPM      Radio Honolulu
NPMH   ?
NPNG    ?
NERK    Indefinite callsign for "All Navy Vessels"
The following excerpt from the Communications Instructions suggests that NQO is an indefinite callsign for "All Naval Shore Stations":
"4432m.   ...When a unit afloat calls a shore station on a ship-to-shore circuit and receives no answer within a reasonable time, the ship should deliver the message via any available station, using the call NQO if necessary."
Capital Ships
NEPP     USS New Jersey     
NEPL     USS Massachusetts
NEPM    USS Iowa
NCBL    USS Missouri
NUGW  USS Wisconsin

USS Trenton        NISR

Click below to look up a list of callsigns for destroyers on the web site of  Tin Can Sailors, Inc., The National Association of Destroyer Veterans.  Not all are WWII-era.

Frequencies From Receiver Calibration Cards
I am looking for more of these.
From RAL-6 number 1062:
NSS Radio Washington
4045, 8090, 12135, 16180Kc
From other side of same card:
7065, 14150
8230, 4115, 12345,16460
From another card:
7065, 14150
4160, 8320, 12375

VLF Frequencies from RBA-1
NSS F 18.6kc (Arlington)
NAA F 15.5kc
NSS B 122kc
NBA F 32.6  (Panama)
NBL 450kc

From NAVPERS 10172, Introduction to Radio Equipment
The "NERK series".  NERK is an indefinite callsign for "All Navy Vessels".
2716, 2844, 4235.  Note, my TBX-6 portable contains a crystal for 2716Kc.
A Navy vet told me that 2716 was the "Harbor Common" frequency.
NPG   19.8Kc
NSS    18Kc