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Teltron GmbH
Teltron 1 was a medium-size electronics company in München (Germany), that
produced secure speech solutions for the police and other
law enforcement agencies
in the days of analogue two-way VHF and UHF radio,
selling rebatched (OEM) as well as in-house developed equipment.
Initially, Teltron developed its own products, which were mainly built
with discrete components. Later, when custom ICs became available and more
advanced methods of voice protection were required, they started selling
rebatched (OEM) devices –
such as the SP-810 –
that were made by Telsy in Italy.
At the time, Telsy was one of the few companies that developed its own
custom ICs.
In the early 1980s, when Teltron was selling Telsy's
TDS-2000 series
— named TVC-9000 by Teltron — Teltron decided to copy Telsy's
designs without permission and manufacture the devices themselves again.
In the mid-1980s, a large batch of in-house produced
TVC-9000 units was sold to an African country.
This alledged theft of Intellectual Property (IP) severely damaged the relationship
between Teltron and Telsy and prompted the latter to take
the necessary precautions to prevent this from happening again in the future [2].
In the following years, Teltron introduced a range of secure voice products,
some of which were based on the
TVC-9000 series.
In addition, they introduced the highly successful single-piece
microphone/scrambler SP-850,
that could be connected to any existing VHF/UHF radio.
Some of Teltron's products were sold as rebatched OEM products
by ANT in Backnang (Germany).
With the introduction of digital two-way radio, such as
Tetranet,
many law enforcement agencies in Europe abandonned analogue radio and, hence,
the voice scramblers and other secure voice products that were used with
such radios. As a result, Teltron GmbH lost most of its turnover and
was eventually dissolved in 1988. The name 'Teltron' is used by several
other companies, both in Germany and abroad, which are not related to
the former Munich-based crypto manufacturer.
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Not to be confused with Teletron (with an extra 'e').
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Teltron equipment on this website
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- 12SD900 time-domain scrambler (1975)
- DS-510 Time Code Generator (1981)
Zeitgebergruppe NSN 5895-12-186-8060
- SP-601
Simple time-domain voice scrambler (1972).
- SP-612
Mobile time-domain voice scrambler (1975).
- SP-810A Secure Voice Equipment
Medium security protection of voice on VHF and UHF radio networks,
using time domain scrambling. Different user groups allows by using
plug-in card.
- SP-812 Secure Voice Equipment
Medium security protection of VHF and UHF radio channels. Can be built
inside the radio and is compatible with the SP-830.
- SP-815A and SP-815DX Secure Voice Units
Two-dimensional scrambling: 16-unit time domain scrambling and
programmable frequency inversion, delivering a total of 512 code programs
that can be stored in a plug-in module. External selector with 16 settings,
plus internal selector with 32 settings. Late-entry sync.
- SP-830
Details currently unknown.
- SP-850
Two-dimensional voice scrambling unit, built into a universal
microphone/speaker combination, so that it can be used on any existing
VHF/UHF radio. Offers 16 external code settings and 32 internal ones.
Specifications like SP-815A/DX.
- Telsec 02
Two-dimensional voice scrambling for analogue carphones.
- TVC-9000 Voice Encryption unit
Two-dimensional voice scrambling for HF, VHF, UHF and satellite links
with 1015 code programs (107 external keys and 108 internal ones).
In green die-cast aluminium enclosure. 12/24V DC version.
- TVC-9001 Voice Encryption Unit
Same as TVC-9000 but for 110/220V AC.
- TVC-9003 Portable Voice Encryption Unit
Same as TVC-9001, but built inside a briefcase.
This device is similar or identical to the
Telsy TDS-2003.
- TVC-9004 and TVC-9004QD Voice Encryption Unit
Same as TVC-9000/9001, but for use with telephone systems.
Uses VOX for quasi-duplex operation (QD).
Similar (or identical) to Telsy TDS-2004.
- Hagenuk TG-1001M
RTTY Fax Demodulator. Built for Hagenuk and used by the German Navy
(Marine).
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- Teltron
Franz-Prüller Straße 15
8000 München 8
Germany
- Teltron GmbH
Freischützstraße 96
81927 München
Germany
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© Crypto Museum. Created: Thursday 02 July 2015. Last changed: Wednesday, 11 June 2025 - 09:02 CET.
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