[Translated from the German by Google Translate.] Marine Group Command North |
Command post, April 22, 1941 |
"Top priority!", "Officer only!"
To-
According to distribution list.
News order for Rhine exercise.
II. Radio communication.
A. For the battleship "Bismarck" and the cruiser "Prinz Eugen."
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1.) From departure to 59° North according to NBN, radio circuit diagram C (page 9).
a) Fleet shortwave
b) Wave for repeating reconnaissance reports, air reconnaissance, also communication wave Group North-Air Commander North,
day wave: 0j 5835 kHz (51.41 m)
night wave: kx 4645 kHz (64.60 m).
On this wave, all important reconnaissance reports of Air Commander North or Air Commander North are repeated.
c) Wave for fighter escort and close cover, as well as call signs and code names for this traffic, are communicated in a timely manner by Group North.
d) UK Channel 17
e) Radio station "Anton" according to NBN page 8.
Manning the "Anton" radio station is permitted only for the purpose of training radio crews.
Commands for Group North until the station change according to II B are issued exclusively on the fleet shortwave band.
f) Coastal shortwave bands in the relevant sea area according to NBN page 5, item 2 d to g and page 7 (Radio Station Group North).
Use of the coastal shortwave bands for transmitting purposes is permitted for reasons of concealment.
The Baltic Sea coastal shortwave network also serves for communication with forces of the BSO.
2.) In operational area 59 North:
a) Radio circuit "Anton" according to NBN page 8 and NBN circuit diagram part II, Appendix 5, page 27 a and b)
b) Longwave near zone: according to Fleet order (for tankers, attached as Appendix 1).
3.) The transition from one circuit to the other is ordered by Group North.
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1.) Security forces activate the fleet shortwave radio.
This remains active until the ship returns to port after the operation is completed (at least by a patrol boat).
2.) Activation of corresponding coastal frequencies as instructed by the flotilla commander or senior commander.
3.) UK Channel 17.
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1.) Tankers shall continuously man the "Anton" radio channel in
accordance with Section II A 2 a) during deployment and while in the
operational area. This order also applies to tankers on standby in the
skerries.
2.) Upon approaching the Norwegian coast, the corresponding coastal frequency for Norway, in accordance with NBN page 5, section 2 e to g and page 7, Radio Channel Group North, shall be activated on the receiving end.
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1.) In the event of a failure of the Kootwijk transmitters, or in
the case of insufficient operational reliability of the "Anton" radio
network, or for reasons of concealment, the "Extended Local and
Long-Distance Service Norddeich Radio" (according to NBN pages 26 and
27, with a continuous reception range of 2290 m), the Atlantic
long-distance communication wave, and the submarine long-distance
communication wave can be used to transmit messages to home.
2.) In the event of a prolonged failure of the Kootwijk transmitters, Group North will issue orders via the "Extended Local and Long-Distance Service Norddeich Radio".
Key documents for domestic waters on all shafts.
IV. Short signal service according to the Fleet Short Signal Booklet.
For operational acknowledgment and confirmation of the short signals, see NBN page 18, item 10. V.
Weather service.
In addition to the weather station broadcasts by Norddeich Radio on 2400 m, a weather forecast for the relevant sea area is issued daily by the Group Command.
VI. ES service according to ES regulations.
On OKM 2./Skl. Na 676/41 g.Kdos. dated 1.4.41. (Reference is made to Annex No. 2 to the General Order of Group North No. 8 of April 9, 1941).
VII. Radio beacons on the Norwegian coast according to NBN page 61, II a). The radio beacons are to be ordered by the naval forces themselves before departure or requested via Group North.
VIII. Time indications.
According to German legal time.
IX. After the transfer of command to Group West according to the Group West communications order.
Annex 1 to Group North 240/41 Gkds. Chiefs.
Radio service of the support vessels and escort tankers.
I. Radio communications with the home front:according to the communication orders of the group commands.
II. Radio communications with naval forces:
With partial modification of the orders originally issued by the group commands, the following is commanded:
- a) Direction finding for rendezvous:
Troopers and escort tankers occupy the long-wave shortwave band for 30 minutes at the times they are scheduled to be at the rendezvous point according to operational orders.
The ship to be rendezvous, or the lead ship in a convoy, initiates radio communication on this wave, if necessary, by transmitting "ww w" followed by its five-digit number group, the digital root of which is specified in section IV, beginning with the lowest transmission power. The call lasts one minute. The following minute is reserved for the responding station. Battleships use only the odd-numbered minutes until contact is established ; troopers and escort tankers use the even-numbered minutes, regardless of the time the radio communication begins. If no answer is received in the second minute, the call is to be repeated in the third minute with a slightly higher transmission power. As soon as the called radio station has received the call, it answers in the following even minute with "ww w" and an interspersed five-digit number group, the digital root of which corresponds to the vessel in question according to section IV). The answer is also to begin with the lowest transmission power, which is to be increased to 50% of the transmission power in the next minute until the answer is received. The calling radio station responds with its five-digit code and, using the traffic abbreviation, indicates the volume at which it is receiving the trooper, enabling the trooper to adjust its transmission power accordingly. The connection is considered established when both radio stations can hear each other at volume 2. Skilled petty officers should be assigned to this radio communication, and the best receivers should be used with the volume turned all the way up. Silence in the radio room! A direction-finding radio message from the trooper or escort tanker is requested by the receiving vessel using the traffic abbreviation "Qobs". At this moment, the minute allocation is complete. The requested radio station transmits a direction-finding message consisting of approximately 10 to 12 five-digit number groups, the first and last of which must equal the cross sum assigned to the transmitting troop vessel or escort tanker. No acknowledgment of receipt is given for this direction-finding message; a new request is made by transmitting the traffic abbreviation "qobs" again. Until the vessel is sighted and the radio contact is thus concluded, the settings on the transmitters and receivers with which the radio contact was established must not be changed in order to ensure that radio communication can be resumed at any time without a new calling procedure.
b) Radio message exchange:
Establishing radio contact is done as described in II, a), unless already established. The transmission of a radio message is to be announced by the traffic abbreviation "qtc", confirmed by the receiving station with "k". Transmission of the radio message after transmission of the radio procedure. Keying according to M-General for domestic waters. Radio names according to GFL
c) Frequency change is ordered with the traffic abbreviation "qlns"......" "Switch to the longwave near zone ..... kHz"
Lucie Emil 133 kHz (2256 m)
Alternate wave: Lucie Max 186 kHz (1613 m)
IV. Digital root of the five-digit call sign groups.
"Bismarck": 21
"Prinz Eugen": 22
"Weissenburg": 34
"Heide": 33