Doesn't comply to Regulation 480/2000 Col. for 20x binoculars and observer distance less than 20m. Therefore
the installer must effectively warn all people that could go into the beam
closer than 20m to not look into the device with binoculars or
magnifying glass. Putting this poster on the roof door is recommended:
Ronja doesn't need radiocommunications licence in Czech Republic.
Telecommunications licence is necessary in Czech Republic only
if you provide telecommunications service.
According to an answer from Czech Telecommunication Office,
Ronja doesn't need a radiocommunications licence, because her frequency
lies outside of the Office's scope.
The Spectrum database has
last assigned frequency at 250GHz and allows queries only up to 5000 GHz. Ronja
operates far higher than 5000 GHz.
Switzerland doesn't regulate optical radiation: "die optische
Strahlung sowie [...] werden durch sie [NISV] nicht verfasst"
- "the optical radiation as well as [...] are not covered therein
[Non-Ionising Radiation Ordinance]" - Nichtionisierende
Strahlung und Gesundheit in der Schweiz, page 3
Ronja doesn't need radiocommunications licence in Switzerland, because
operates above 3000 GHz. "As the equipments operate within the near
infrared spectrum, they are not subject to government licensing and no spectrum
fees have to be paid (according to Art. 7 in Verordnung des Bundesrates,
,,Verordnung ueber Frequenzmanagement und Funkkonzession (FKV)'' 6. Oktober
1997, requires only the use of the frequency spectrum below 3'000 GHz a
licence)." -- Swiss Confederation, Federal Office of Communications OFCOM,
Free Space Laser Communications Systems, page 2.
If you provide telecommunications service,
you have to notify the Telecommunications Office.
Art. 4 (2) at page 2 says: "Anyone providing a telecommunications
service in any other way must notify the Federal Office for Communicastions
(the Office) accordingly.".
In vast majority of world's countries it is not necessary
to undergo any formalities to legally operate LED-driven visible optical
transmitting system. The divergence angle virtually eliminates any possibility
of interference with any other optical device or neighbourhood annoyance with
the distinctively visible light beam and thus no legal issues should arise
during the operation.
Eye safety compliance is more complicated than in case of visible
system because requirements on invisible near infrared (NIR) systems are more
The emitted beam poses no risk to birds and any other
animals. This condition is fully preserved even in condition of device failure
of any kind and/or unauthorized manipulation.
The device is optimized for low electromagnetic radiation.
No EMI should occur.
The device is not certified for transmission of classified data.
However, eavesdropping is so difficult, obvious and confined to narrow
space, so that it is not practically feasible and unencrypted data may be
transmitted without any substantial loss of privacy.
If the device is to be installed on places where lightning strike
hazard exists, it is necessary to proceed according to local code for
outdoor aerial installations.
The device does not contain any particular measure to suppress
lightning strike induced EMP damage to connected electronic equipment.
Installation of the device may increase the damage probability and/or
extent due to existence of additional long runs of signal cables connected
to the potential victim equipment through the device interface.
The device poses no electric shock hazard to humans when mounted in publicly
accessible places as it contains voltages that are not lethal even under
severe atmospherical conditions, unauthorized tampering, and any possible
The device contains no hazardous chemicals that could release and thus
damage a person or the ecosystem.
The device radiates no ionizing radiation even under worst-case
failure and contains no radioactive materials.