[amsat-bb] Illegal downlink in the 70 cm band
Zach Metzinger
zmetzing at pobox.com
Sun Jan 20 18:35:46 UTC 2019
On 01/20/19 12:07, Nico Janssen wrote:
>
> A Chinese CZ-4B rocket booster or, more likely, some payload
> attached to it, appears to have a telemetry downlink on
> 432.0836 MHz. It is object 43656, 2018-081B.
Illegal? Depends on the ITU region it is flying over.
U.S. 47 CFR 97.207(c)(1) defines 435-438 MHz as the allowable transmit
frequencies for space stations. However, the ITU just marks 432-438 as
AMATEUR (primary region 1) or Amateur (secondary regions 2&3). No
distinction is made for amateur-satellite stations.
The ITU does allocate this swath of spectrum to "Earth
exploration-satellite (active)". I haven't dug into that.
Unfriendly and uncoordinated? Definitely.
IANAL
--- Zach
N0ZGO
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