333
you are viewing a single comment's thread
view the rest of the comments
[-] hydroptic@sopuli.xyz 43 points 6 months ago
[-] nuke@sh.itjust.works 76 points 6 months ago
[-] hydroptic@sopuli.xyz 47 points 6 months ago* (last edited 6 months ago)

Ahhh right, I didn't recognize it from a photo but I've read of it.

It's annoying that so many sources are calling VERA-NG a "radar" when it's specifically not a radar: it's a fully passive system, it only receives and doesn't emit. Hell, even the Wiki article is titled VERA passive sensor

[-] AtmaJnana@lemmy.world 7 points 6 months ago

Its not even very similar to a radar.

[-] uriel238@lemmy.blahaj.zone 6 points 6 months ago

Radar can totally be passive, and if you're flying above enemy territory, it's a really good idea to use passive radar and not active radar (the latter of which is used for some guided missile platforms).

In fact, active radar means everyone with passive radar knows where (and probably, what) you are.

[-] hydroptic@sopuli.xyz 4 points 6 months ago* (last edited 6 months ago)

Oh interesting, although that does make complete sense. I'm an old sigs pig so I'm not too clued in on this stuff honestly

[-] jimbolauski@lemm.ee 1 points 6 months ago

Radiolocation can be passive radar can not. Radar requires one or more transmitters and one or more receivers.

[-] uriel238@lemmy.blahaj.zone 3 points 6 months ago

One of the primary sensors on F16 (simulators in the early 1990s) was a passive radar — called that — that detected and pointed at those things trying to ping my plane.

Since it detected transmissions outside effective range, it meant I tracked them sooner than they tracked me, much the way automotive radar detectors have different warning sounds for when they sense radar around somewhere and when the car is being pinged directly.

Technically (the best kind of correct!) There is a transmitter in these cases, just not controlled by the same source as the detector.

I suspect radiolocation isn't restricted to radar signals but can track stars and radio stations. Though they too transmit.

[-] jimbolauski@lemm.ee -1 points 6 months ago

Just because they dumbed down what a radiolocation sensor is and called it passive radar doesn't make it a radar. RADAR was an acronym radio detection and ranging. Passive systems triangulate that is different than ranging. For ranging to work you need the transmitter and receiver to cooperate.

[-] Skua@kbin.social 7 points 6 months ago
[-] hydroptic@sopuli.xyz 8 points 6 months ago

Well, my days of not taking you seriously are certainly coming to a middle

[-] nuke@sh.itjust.works 27 points 6 months ago
[-] RamblingPanda@lemmynsfw.com 8 points 6 months ago

Then let's hope it can help penetrate Russian lines.

[-] theodewere@kbin.social 12 points 6 months ago

i believe that is an Imperial Probe Droid before it unpacks itself

[-] NOT_RICK@lemmy.world 3 points 6 months ago
[-] hydroptic@sopuli.xyz 16 points 6 months ago

As I said in another comment, I didn't recognize it from photos but I've read of the VERA system. It's actually specifically not a radar: https://en.wikipedia.org/wiki/VERA_passive_sensor

[-] redcalcium@lemmy.institute 8 points 6 months ago
[-] nuke@sh.itjust.works 5 points 6 months ago

It's a grower, not a shower

this post was submitted on 25 Feb 2024
333 points (97.7% liked)

NonCredibleDefense

6461 readers
1301 users here now

A community for your defence shitposting needs

Rules

1. Be niceDo not make personal attacks against each other, call for violence against anyone, or intentionally antagonize people in the comment sections.

2. Explain incorrect defense articles and takes

If you want to post a non-credible take, it must be from a "credible" source (news article, politician, or military leader) and must have a comment laying out exactly why it's non-credible. Random twitter and YouTube comments belong in the Low Hanging Fruit thread.

3. Content must be relevant

Posts must be about military hardware or international security/defense. This is not the page to fawn over Youtube personalities, simp over political leaders, or discuss other areas of international policy.

4. No racism / hatespeech

No slurs. No advocating for the killing of people or insulting them based on physical, religious, or ideological traits.

5. No politics

We don't care if you're Republican, Democrat, Socialist, Stalinist, Baathist, or some other hot mess. Leave it at the door. This applies to comments as well.

6. No seriousposting

We don't want your uncut war footage, fundraisers, credible news articles, or other such things. The world is already serious enough as it is.

7. No classified material

Classified information is off limits regardless of how "open source" and "easy to find" it is.

8. Source artwork

If you use somebody's art in your post or as your post, the OP must provide a direct link to the art's source in the comment section, or a good reason why this was not possible (such as the artist deleting their account). The source should be a place that the artist themselves uploaded the art. A booru is not a source. A watermark is not a source.

9. No low-effort posts

No egregiously low effort posts. These include Social media screenshots with a title punchline / no punchline, recent (after the start of the Ukraine War) reposts, simple reaction & template memes, and images with the punchline in the title. Put these in weekly Low effort thread instead.

10. Don't get us banned

No brigading or harassing other communities. Do not post memes with a "haha people that I hate died… haha" punchline or violating the sh.itjust.works rules (below). This includes content illegal in Canada.


Join our Matrix chatroom


Other communities you may be interested in


Banner made by u/Fertility18

founded 1 year ago
MODERATORS