28 March 1944 Part 2

28 March 1944 Part 2 Neckar radio plan: island division, Navy and Guernsey weather station

The division’s numerical call signs are encoded table references. All frequencies are expressed in kHz as in the source.

Seventh Army Headquarters, Army Signals Commander (III), No. 400/44 Top Secret Command Matter. Army headquarters, 28 March 1944. Annex 9 to the March war diary. Subject: Seventh Army radio plan.

1. Enclosed is the Neckar radio plan/extract, valid from 1 April 1944 at 03.00 hours. Part I: command radio. Part II: links with the Navy and Luftwaffe, weather service. Part III: supply radio.

2. The basis for radio arrangements is the radio instruction, booklet 4, dated 1 January 1944.

3. Further distribution to subordinate formations is permitted only in extracts, observing the fundamental order on preparing and distributing radio plans.

4. The edition of 16 January 1944 ceases to apply on 1 April and must be destroyed under Army Regulation 99.

319th Infantry Division rearward and lateral communications: call-sign numbers 19 and 3; alternatives 24 and 58; base 157; channel 1, alternative channel 3; basic group D 5. Long-wave group F 157 and medium-wave group E 72. Short-wave groups follow the rotation table.

Three-day short-wave rotation, changing at 03.00: 1st–4th, D 1; 4th–7th, D 7; 7th–10th, D 4; 10th–13th, D 6; 13th–16th, D 2; 16th–19th, D 9; 19th–22nd, D 8; 22nd–25th, D 3; 25th–28th, D 5; 28th–31st, D 4.

Coastal division–naval commander liaison: 319th Division call-sign number 53; Naval Signals Officer Channel Islands 65; base 200; frequency 458 kHz.

All corps and divisions in the army area must continuously man this liaison frequency. It carries circuit traffic between coastal divisions and naval commanders, using Wehrmacht Machine Key West, and alarm reports from sea. The naval signals officer passes sea alarms immediately to coastal divisions. These are transmitted three times in plain language comprehensible to the Army, with the assigned naval call sign sent three times at the beginning and end. Only headquarters specifically addressed by call sign acknowledge by radio. Corps stations immediately repeat the naval transmission in the same manner. All headquarters must submit monitored alarm reports to their tactical commander.

319th Division air–ground code name: Goethe. Reconnaissance frequencies: main 43,400 kHz; alternatives 42,200, 45,200 and 46,850. Artillery frequencies: main 43,850 kHz; alternatives 42,250, 46,250 and 47,200.

Reconnaissance aircraft take-off time, frequency and mission type are passed to corps by the Luftwaffe liaison detachment on the Army–Luftwaffe liaison frequency. Corps ensure the quickest onward transmission to divisions and arrange neighbouring corps/divisions to monitor aircraft traffic by forwarding take-off reports. Each corps and division receives a fixed code name. Subordinate cover numbers: Panzer Grenadier Brigade 1; Panzer Regiment 2; Reconnaissance Battalion 3; Motorcycle Battalion 4; Artillery Regiment 5; Artillery Battalions I–IV, 6–9; heavy battery 10.

Weather station 517, Guernsey: vex, 444 kHz. The content and timing of weather transmissions and day/night changes follow the currently valid special weather-service instructions for Commander-in-Chief West.

German Seventh Army Headquarters (AOK 7), NARA T-312 Roll 1566. Roll 1566 Jersey and Channel Islands English translations.docx, reference 27. T312-1566.pdf, PDF pages 564, 568, 570, 571, 574, 576, 577, 578, 580, 581. PDF pages count from the first page of the supplied file.