Marine Receiver – Allocchio Bacchini AC20

Dear Sparks,

in Italy there have been some industries produced marine radio gears during the “Radio Golden Age”, one of them was a big factory located in North Italy with name RADIALBA or well known as ALLOCCHIO BACCHINI very famous for the production of domestic radios and first TV sets. This time it is proposed the Marine Receiver model AC 20, these radios have been used on board for more than 20 years from their date of built, very nice audio quality also if the receiver suffered of a certain drift never solved definetively because of its own project: Rotating Drum with tuned tanks, anyway the AC 20 has been very popular among Italian Radio Officers. Unfortunately on the web there are not videos about this receiver. Below the characteristics:

AC20 – Allocchio Bacchini

Paese: Italia

Producer:   Allocchio Bacchini (Radialba); Milano

Anno:  1956

Categoria: Professional receiver

Valvole: 13: 6CB6 6CB6 6BE6 6C4 6BE6 6BA6 6BA6 6BA6 6AL5 6BA6 12AU7 6AQ5 0A2

Principle:  supereterodyne double / triple conversion; ZF/IF 950/62 kHz; 2 Stage AF

Tuned tanks:  9 Circuits

Power supply:  AC voltage 110 or 220 Volts

Speaker: output for external speakers or headphones

Audio power:  2 W (excellent quality)

Model: AC20 – Allocchio Bacchini Radialba

Materials: metal cabinet

Dimension (LxHxD):   490 x 300 x 405 mm / 19.3 x 11.8 x 15.9 inch

Frequency coverage:  75 kHz – 31 MHz

Weight:   25 kg / 55 lb 1.1 oz (55.066 lb)




Marine Receiver – MACKAY 3010 C

Dear Sparks,

to remember the MACKAY receiver model 3010 C installed on many anglosaxon ships..

Country: USA

Producer: Mackay Radio & Telegraph Company; New York

Alternative name: ITT Mackay Marine

Year: 1968

Category: Professional receiver

Tubes  17: 7788 6C4 6688 6BL8 6BE6 6BA6 6BA6 6AV6 12AT7 6BF5 6BL8 6U8 6EW6 6BA6 6BA6 6AU6 0B2

Principle: Supereterodyne double / triple conversion; ZF/IF 455 kHz

Bands: MF HF

Power supply:  AC / 115 Volt

Model: 3010-C – Mackay Radio & Telegraph

Materials: Metal cabinet

Dimension (LxHxD): 19 x 10.5 x 16 inch / 483 x 267 x 406 mm

Notes: Coverage (10 kHz)70 kHz to 30 MHz in 15 bands, works in AM, CW, MCW, SSB and FSK, S-meter, BFO, triple conversion ~38 MHz, 5,94 MHz and 455 kHz, 90 inch film scale, differences to the type B are just added capacitors to improve the frequency stability.




Marine Receiver – Siemens 745 E 310 or Debeg 566

picture by http://www.seefunknetz.de

Dear Sparks,

waiting for MRD this time is proposed the good German receiver Siemens 745 E 310 or Debeg 566, the receiver was used also in other brands of radiocommunications but largely on merchant ships.

General Coverage Communications Receiver
Double Conversion Superheterodyne
17 Tubes + Semiconductors
Made in West Germany 1956 – 1971


Coverage: 14 – 21 / 85 – 175 / 170 – 350 / 340 – 730 / 720 – 1540 kHz
1.5 – 3.1 / 3.1 – 6.3 / 6.0 – 10.2 / 9.7 – 15.2 / 14.7 – 20.2 / 19.7 – 25.2 / 24.7 – 30.2 MHz
Modes: AM/CW/MCW
Antenna Input: SO-239 75 Ohms unbalanced
Sensitivity: CW: 0.3 µV 6 dB S/N, AM: 8 µV (LF-MF), 4 µV (HF) 10 dB S/N
Setting & Read out: 500 Hz
Selectivity: 6.2/2.4/1.8 kHz –6 dB. In the 14 – 21 kHz and 85 – 175 kHz ranges 0.8 kHz –6 dB.
Formfactor -6/-60 dB: 1:2.8 at 6.2 kHz bandwidth.
IF: 1st IF: 1080-1180 kHz, 2nd IF: 100 kHz
IF Rejection: 50-70 dB, typically 70 dB
Image Rejection: 40-80 dB
Audio Output: 1.6 W/5000Ohms, 600 Ohms line
Voltages: 110/125/220/250 V AC +/-10% 40-60 Hz, 100 W
Physical: Cabinet Version: 550x350x380 mm, 35kg
  Rack Version: 520x304x380mm
Accessories: FSE 2 or Teletron TG 440 for FSK, FSE 7 or Hellfax BS 110 for Fax


– Headphone Jack – Speaker – Speaker Switch – Line Out 600 Ohms
– BFO +/-3 kHz – ANL – AGC/MGC – AGC 0.1/1sec.
– RF Gain – Calibrator 100 kHz – Dial Lamp – Two Tuning Speeds
– Fine Tuning – Break In Relay – Semi Modular – Rack Handles


Circuit Complement
Tubes + Semiconductors: 4x EF 93 (=6 BA 6), 3x EK 90 (=6 BE 6), 4x ECC 82 (=12 AU 7), 2x EAA 91 (=6 AL 5), 1x EL 90 (=6 AQ 5), 1x EM 34 (=6 CD 7), 1x 108 C 1 (=0B 2), 1x 150 C 2 (=0A 2), selenium rectifiers in power supply.
Tuning: Three ganged capacitors in RF circuits, three ganged capacitors in 1st variable IF-circuits. Continuos tuning by a knob (transmission 10:1 pushed and 160:1 pulled) via 1st oscillator. Alternatively above 1.5 MHz exact setting of 1st oscillator in steps of 100 kHz with calibrator for RF conversion to variable 1st IF (1180 to 1080 kHz), fine tuning via 2nd oscillator (1280 to 1180 kHz) for further conversion to 2nd IF (100 kHz).
Crystal: 1x 100 kHz for calibration.
Dials: Very big colorful coarse dial, first segment is fine tuning dial 100 kHz.


This model was designed for the marine market replacing the E 61, E 66a (LF, HF, 1948), E 303, E 305 and E 306 (all HF, 1952-1954). The E 310 was licensed as a class one receiver by Deutsche Bundespost. A standard receiver like competitor Hagenuk UE 12 on German ships. The twelve bands are selected by push-buttons on the left. Called “parrot cage” by the operators, referring to its colorful dial. Quite suitable for SSB reception using the product detector at 1.8 kHz bandwidth in CW mode.


The E 310b has a C-type antenna jack instead of the SO-239 jack. The E 566 is a very similar model, first with a dark green cabinet and front panel, later often light gray.

Best regards,



Marine Receiver – Marconi ATALANTA

picture by LU5FBX

Dear Sparks,

waiting for the Maritime Radio Day we will propose a revival of marine receivers many of us used during the Radio Golden Age. The receiver proposed this time is the MARCONI ATALANTA largerly used on Merchant ships but it has been reported it was employed in the Navy to.

Country of production:  Gran Bretagna (Regno Unito)

Factory:  MIM, Marconi International Marine; Chelmsford Essex

Year: 1958

Tubes:  14

Type of receiver:  Supereterodyne  double / triple conversion

Power supply:  220/24 Volt (and battery)

Audio power:  1 W

Name of RX:  Model: Atalanta 2207C – MIM, Marconi International

Materials: Metal cabinet

Dimension (LxHxD):  495 x 319 x 503 mm / 19.5 x 12.6 x 19.8 inch

Description: Complete coverage is provided by the receiver over the frequency band 15 kc/s. to 28 Mc/s. in ten ranges, with band spread scales directly calibrated in frequency for the six H.F. marine bands. Additionally, electrical fine tuning of 3 kc/s. Provides signal tuning discrimination of great accuracy. The wide frequency range available and the complete coverage of the receiver makes it suitable for mobile, maritime or fixed stations having to receive signals from a wide range of transmitting sources.
The receiver, which is normalcy mounted in a bench-type cabinet may, to meet special requirements, be fitted on a standard 19-inch rack. The “Atalanta” operates directly from 110 or 220 volts D.C., or 115 or 230 volts A.C. in conjunction with the necessary power units.
The receiver covers the band 15 kc/s. to 20 Mc/s. in ten ranges as follows:
1. 15-25 kc/s. (20,000 – 12,000 m.)
2. 25 – 100 kc/s. (12,000 – 3,000 m.)
3. 100-200 kc/s. (3,000 – 1,500 m.)
4. 200 – 400 kc/s. (1,500 – 750 m.)
5. 400-800 kc/s. (750-375 m.)
6. 800 kc/s. – 1.4 kc/s. (375 – 176.4 m.)
7. 1.7- 3.6 Mc/s. (176.4 – 83 m.)
8. 3.6 -7.5 Mc/s. (83 – 40 m.)
9. 7.5 – 15 Mc/s. (40 – 20 m.)
10. 15 – 28.0 Mc/s. (20 -10.7 m.)
Intermediate Frequency: On ranges 1, 3, 4, and 5 I.F. of 85 kc/s
On range 2 and ranges 6 to 10 a I.F. of 700 kc/s and a 2nd I.F. of 85 kc/s.

Weight: 35.4 kg / 77 lb 15.6 oz (77.974 lb)

Best regards,




Italian Royal Navy Award 1918-2018 (First World War)


A bit of history
During the First World War several naval operations were carried out in the Adriatic Sea, which began with the declaration of war between France and the Austro-Hungarian Empire on 11 August 1914. With the immediate blockade of the Canal d’Otranto by the French navy, in which even the Royal Navy units participated, the Austro-Hungarian naval forces were forced to operate only within the waters of the Adriatic, without being able to carry out long-range actions within the Mediterranean Sea for reaching and potecting their ports, shipyards and naval divisions with enemy numerical superiority.

Initially the weight of the allied operations fell on the French navy; Italy at the outbreak of the conflict had declared its neutrality, while the United Kingdom was engaged against the Kaiserliche Marine in the North Sea and in the escort to mercantile traffic in the Mediterranean. At the same time the kuk Kriegsmarine carried out mainly disturbing actions by submarines and light ships, using U-Boot supplied by the German ally since August 1914, which operated with base in the port of Pula under the Austro-Hungarian flag. The situation changed on May 23, 1915, the day on which Italy (in compliance with the commitments made with the London agreement) declared war on Austria-Hungary. The Royal Navy soon took on the burden of undertaking and managing the war on the Adriatic front throughout the course of the conflict.

The confrontation immediately left ample space for submarines’ ambushes, for the air companies and later for the bold incursions of the assault vehicles such as the MAS. The two opposing supreme commanders, Admiral Paul Thaon of Revel and Admiral Anton Haus (later replaced by Maximilian Njegovan and then by Miklós Horthy) did not want to risk the large battleships in narrow water, instead focusing on rapid attacks on the block of the main airports and the strategy of the “fleet in power”; a setting to which the Austro-Hungarians in particular abide. The operations did not see a clear dominance of one of the contenders and ended with the entry into force of the Villa Giusti armistice on November 4, 1918, the day in which the Royal Navy completed or put in place a series of amphibious occupations of major cities coastal enemy.

The recurrence of the Centenary of the Great War allowed many associations that took part in commemorating the most important historical milestones. Even ARMI did not want to be less and immediately set to work to create the diploma ” The Royal Navy in the Great War “.


The Diploma is dedicated to the Royal Navy during the Great War (1915-1918). It is represented in three versions ” Bronze 100 – Silver 200 – Gold 300 “; the layout of the three diplomas is the same and the north-eastern part of Italy is represented and mainly that of the Adriatic Sea. Depicting a young Italy and on the right a coffa of a ship with the flag of Regia Marina. The diplomas in the three versions are different and represent three great admirals of the period with three naval symbols. The diploma ” Bronze 100 ” depicts Admiral Luigi Rizzo, and a MAS, a boat used by the hero to sink the Corazzata Wien into the Buccari outlet. The ” Argento 200 ” diploma represents Admiral Diego Simonetti and a naval unit of that time. The ” Gold 300 ” diploma depicts Admiral Paolo Emilio Thaon of Ravel (Chief of Naval Staff and Commander in Chief of Naval Forces) with a naval cannon.

The Diploma is achievable by all the OM and SWL of the world.

The period of the activity is announced from 1 January to 11 November 2018 ( 11 November 1918 is the date on which the First World War ended).


All stations not registered with ARMI are worth 1 point.

All ARMI stations that are not accredited are worth the following score:
SSB: 2 points
DIGI: 3 points
CW: 5 points

Accredited ARMI stations:
All radio amateurs belonging to ARMI can operate, they can operate with their own station name, it is enough to accredit themselves by sending an email to the national office info@assoradiomarinai.it
The name of the station will be credited and will appear in the official list on the ARMI site marked by a suffix in the balance that will correspond to a ship of the Royal Navy.

IT9M RM – RM – Battleship R egina M argherita

The suffix is roughly associated with your name; where it can not be associated with a ballot equal to one’s own name, one will be assigned to an office.

The ships and submarines (not including the minor fleet) of the Regia Marina during the Great War were in all 131, so hypothetically only 131 operators can participate.

The accredited stations are worth the following score in all ways:
SSB / DIGI / CW: 10 points

Wildcard ARMS stations:
The accredited Jolly stations are all IQ stations registered at ARMI, they will be assigned a trilict suffix and the name of an Admiral of the Royal Navy during the Great War (the three-letter suffix always begins with the letter A – Admiral) .

IQ9MQ – AAAA mmiraglio A ugusto A ubry

The Jolly stations are worth the following score in all ways:
SSB / DIGI / CW: 15 points

Super Jolly station:
It is a station operating throughout the period with a special name:


(World War I)

The Super Jolly station is worth the following score in all ways:
SSB / DIGI / CW: 25 points

[ CLICK HERE to view the official list]

All stations can only be connected once for each individual emission MODES (SSB-CW-DIGI) for the entire period of the event. The connections in the digital mode are valid only for a mode of the two provided.

All connections made during the naval contest period (IT NAVY COASTAL – IT NAVY SHIPS) are not valid!

The following modes are allowed: CW – SSB – DIGI (PSK – RTTY)

All HF bands, according to the IARU Band Plan

There are four classes:

Bronze: 100 points; (at least one Jolly station and a Super Jolly station)

Silver: 200 points; (at least two Jolly stations and a Super Jolly station)

Gold: 300 points; (at least three Jolly stations and a Super Jolly station)

Top Honor Plaque: 1000 points (at least four Jolly stations and one Super Jolly station).

The call will be as follows:




The non-accredited ARMI Stations will pass the RST reports followed by the registration number (MI #) .

The accredited ARMI stations will pass the RST reports followed by the assigned ballot .

The JOLLY (IQ) stations will pass the RST ratios followed by the assigned trilogy .

The SUPER JOLLY station will only pass the RST report.

All the stations that will log the connection with the accredited stations, Jolly and Super Jolly stations will receive the diplomas in JPG format based on the requests received. The Diplomas will all be free .

For the request of the ” Top Honor Plaque ” a flat-rate charge of € 35 is foreseen.

The Italian stations that wish it, can send the contribution for the Top Honor Plaque through the following ways:

– via “POSTEPAY” 4023600645946759 in the name of Mattei Alberto;

– via “PAYPAL” at the following address it9mrm@gmail.com

– BANK TRANSFER: IBAN IT46V0200884625000103416422 c / o UNICREDIT branch of Augusta.

The Diploma will be requested from the National Award Manager:

IT9MRM Alberto Mattei – Via E. Millo, 20 – 96011 Augusta (SR) – Italy –

e-mail: info@assoradiomarinai.it

They must be in ADIF / CBR / TXT / DOC / XLS format.

The use of any electronic log is allowed.

Those who wish can use the Electronic Sheet ( RegiaMarinaLog ) for the management of connections (including the ARMI database).
You can download it from this link -> [ click here ]

Requests for the diploma must be received no later than 31. 12. 2018 .

The Diplomas (Bronze – Silver – Gold):


St. Lys Radio – Special Event Station c/s TM20SLR

Dear Sparks,

TM20SLR January 14th to 28th special event station in memory of St Lys Radio.


En souvenir de la belle aventure de ce service tant apprécié par tous les navigateurs et leurs familles, par tous les équipages des navires en mer, par tous les radioamateurs et écouteurs d’Ondes Courtes,  et en hommage aux qualités humaines et techniques des hommes et femmes, opérateurs et opératrices de la station FFL de Saint-Lys Radio qui a cessé ses émissions le 16 janvier 1998, voici tout juste 20 ans.

73’s and Happy New Year,



Internet the “Secret Weapon”

Dear Sparks,

if in these days you have spare time I suggest you to read the document below to see how TERRIFIC and TERRIBLE is internet and remember that many important people said “STAY CONNECTED”…why? The document below will inform you how internet really works as a weapon so you can discover the “scenario” where it is played the new war…click below  a .PDF document will open…

Big Brother is Watching You




Long wave Broadcast station “ATLANTIC 252” maybe back on the air

Dear Sparks,

for all those Atlantic 252 listeners here is something that I found in my news feed I wanted to share with you. I wish that Atlantic 252 would return back on the air after RTE 1 goes off the air in 2019. But as with Algeria on 252 kHz, it would be pretty difficult to hear them clear unless you log on to one of the UK or Ireland Web SDR tuners or Kiwi SDR tuners….omissis…

Also I would like to wish everyone a Merry Christmas and a Happy New Year!

from facebook.com Mr. Adam Ebel



Russian Marine Histories BMRT “Dainava” year 1990

Dear Sparks,

the following video has been recorded on year 1990 on board russian oceanic trawler “DAINAVA” during a fishing campaign in North-East Atlantic, some crew members have their wives on board and someone else will use the radio to enter in touch with their families at shore as you can see from minute 1:27 until minute 2:37. Precious video of a life at sea no longer today.

Enjoy the clip:




News of /MM operation

Dear Sparks,

our Friend OM John DAVIES – G4ETQ reported following future activity from /MM during next BOUVET Island DX-pedition:

News of forthcoming maritime mobile operation.
M/V Betanzos will be the vessel used for The Bouvet Island Dxpedition 3Y0Z in late January/early February 2018.
It is expected to operate two /mm stations on the long voyage to Bouvet, one CW.
For more info see: https://www.bouvetdx.org/