Morse code generator - GMZ

Generator Morzeovih znakova GMZ
GMZ (Morse code generator) is intended to be trainer for radio telegraphs. It is made by firm from Split named “Etas” in 1983.

Internal program generates 44 Morse code signs and it is divided in 26 lessons. Signs are generated randomly with same representation.

It has a tone oscillator and 1 W audio amplifier, and it allows teaching in small, improvised classrooms.

Origin: Yugoslavia

Radio-telegrafisti
Taster TYPE D
Ručice za elektronske tastere
Preuzmite Uputstvo za taster TS-3
Preuzmite uputstvo za taster TS-4
 
 
Set of every radio station, beside transceiver, is power sources (aggregates, PSU, converters, batteries, chargers, hand generators), accessories (antennas, frames and bags for montage and carrying, speakers, Student keyermicrophones, micro telephone combinations, headphones, telegraphic keyers, cables) and documentation (manuals, rules, Technical keyer book ).

Special place, undoubtedly, belongs to telegraphic keyers (Morse keyers). Most often are used hand keyers of different sizes, construction and use (popular name hand key). In stationed centers they have been used, today they are past, mechanical keyers and later electronic keyers with or without memory are often used.

Immediately after World War 2, in use were different types of radio stations. Part of them was handmade, second part was war prize, and part was from allied help, or buyed from East and West. With them were and different keyers. Here is description of some of them.



Description of telegraphic keyers

German keyer T-1 was part of war prize. It was made from Bakelite black colored (there is and variant of dark brawn color). It was caret eristic for very soft, gentle, contact (construction of keyer lower contact plate is hangingin air, and then curving by pressure, which gives specific feeling while typing). Keyers had had string of markings on Bakelite and metal plate, which identifies factory, product model and yearGerman mini keyer of construction. Except that, from the left side with white color is a mark in shape ofeagle. Operators (especially immediately after war) were unconformable with nazy markings, so they were removed, or at least swastika. Keyer is known in Serbia with name TAP, by contraction on cover. Thanks to quality, keyer has been used for many years.

Keyer JunkerFor difference from T-1, German mini keyer was known as The German Mouse, rarer in Balkan territories.

Keyer Junker was one of the most high-end and most appreciated hand keyers. It was made in Germany before, for, and after World War 2, with small modificationsKeyer type VR-150.

Keyer VR-150 was Yugoslavian product. Basically that was copy of German T-1. Quality of manufacturing, basically from red and black Bakelite. Because of two models: brown, which had all Bakelite parts in brown color, and black which key bar have an Bakelite cover from black color. On cover there was an red star with JA marking which stand for Yugoslavian army. In between operators this keyer is very popularKeyer TS-1.

Homemade keyer TS-1 has became part of stationary, mobile and portable radio stations sets. Because of that it is manufactures with two stands: one is common, for Keyer TRG01work from stable surface, another is for fixing to the leg of solder. Stand and cover are made from metal, green color. Base of keyer and button is made from black Bakelite, and its half chromed or nickel plated.

This keyer is used for base of building many modificated versions, used specially in cabinets for Morse code learning (TS-1 student, RTG01 and others).

Keyer TS-3Keyer TS-3 is a keyer designed for training and conditioning of radio telegraphs, so it have installed tone oscillator. It was predicted and possibility for use of Morse telegraphy in direction network or circular, plugging in connection over inductor central MP-10, or directly to HF units (non modulated CW) and VHF units ( work with modulated CW). The way how keyer worked is selected by combination of two switches. There were manufactured a modificated versions for completing various classrooms for educating radio telegraphs (an example TS-3 Vihor). Power supply: two R-6 (AA) batteriesKeyer TS-4.

Keyer TS-4 is also manned for training and conditioning, but it has been used and for operational work. It replaced the TS-3. Small dimensions, it has installed tone oscillator. It was used automatically or in stationed classrooms for learning Morse code. Better quality than TS-3, tuning was better, tone oscillator was working better, so it was accepted from radio telegraphs pretty fast. Power source: two batteries R-6 (AA)Keyer mini B-2.

Keyer mini BP-5In various completes of spy radio stations and radio stations packed in suitcases, there were miniature keyers. For example, with Britain radio unit designated Type 3 Mk II it was delivered and mini keyer B-2, with unit BP-5 miniature keyer, which was installed on top plate of spy radio station AP-5.

Keyers - SSSRWith units gathered from Soviet Union, there were various keyers, of which most often was military ones, scholastic and KM (known and as TK), KM-F (TK-F). Letter F meansKeyers - USA that all keyers in the stand had a installed HF filters.

American units are delivered with all sorts of keyers, most often J-37 (on standard stand, or as KY116/U on metal holder for leg) different variants of keyer Electronic Series and others.

Keyer type KY-5033Imported radio stations Collins PRC-515 and Yugoslavian RU-20, in complete had keyers KY-5033. They were different by that imported KY-5033 (PRC-515) had markings in relief, while Yugoslavian KY-5033 (RU-20) has markings printed with white color. Because of poor tuning keyer had not been respected between radio telegraphs, so usually it was replaced with TS-1.

With radio stations manufactured by Racal, there were bigger keyers, manufactured by MORSE EQUIPMENT LTD, with stationary units and Racal mini with portable units (TRA-931). Number on the upper plate is NATO nomenclature number of keyer, and number 99 stands for Great Britain.

For work in stationary stations there were and electronic keyers without message memory (for example ET4C) or with memories which can hold entire messages which could be transmitted delayed and with higher speed (anElectronic keyer ET4Cexample with stationary units Racal it was provided keyers ETM-4C). For keying withElectronic keyer ETM-4C electronic keyer there were used special paddles, (squezee) ordinary (with one paddle TM-1) or double paddle (HK-4). Paddle TM-1 was, like complete copy of Vibrokeyer paddle, of the most known firm Vibroplex, manufactured by Rudi Cajevec (only difference was button of black color, on the original it was red). The example from the picture is special because it belongs to Belgrade Company Elektronika inzenjering which bought it, and engraved the sign and name and gave it like present to business partners. Interesting is paddle made by Technical remount institute Travnik, by name Manipulator of electronic keyer.

Translated by Nikola-YU2NIK

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