GET https://kbin.spritesserver.nl/index.php/m/askelectronics@discuss.tchncs.de/t/1846/Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed/comment/26058/votes/up

Response
200 OK
IP
216.73.216.97
Profiled on
Token
bd1f89

Security

Token

There is no security token.

Firewall

main Name
Security enabled
Stateless

Configuration

Key Value
provider security.user.provider.concrete.app_user_provider
context main
entry_point App\Security\KbinAuthenticator
user_checker App\Security\UserChecker
access_denied_handler (none)
access_denied_url (none)
authenticators 
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Listeners

Listener Duration Response 
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 0.00 ms (none) 
Symfony\Component\Security\Http\Firewall\ContextListener {#706
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  -userProviders: Symfony\Component\DependencyInjection\Argument\RewindableGenerator {#705 …}
  -dispatcher: Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher {#747 …}
  -registered: false
  -trustResolver: Scheb\TwoFactorBundle\Security\Authentication\AuthenticationTrustResolver {#780 …}
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 0.79 ms (none) 
Symfony\Component\Security\Http\Firewall\AuthenticatorManagerListener {#584
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 0.04 ms (none) 
Symfony\Component\Security\Http\Firewall\AccessListener {#579
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}
 0.00 ms (none) 
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Authenticators

No authenticators have been recorded. Check previous profiles on your authentication endpoint.

Access Decision

affirmative Strategy
# Voter class
1 
"Symfony\Component\Security\Core\Authorization\Voter\AuthenticatedVoter"
2 
"Scheb\TwoFactorBundle\Security\Authorization\Voter\TwoFactorInProgressVoter"
3 
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4 
"Symfony\Component\Security\Core\Authorization\Voter\ExpressionVoter"
5 
"App\Security\Voter\EntryCommentVoter"
6 
"App\Security\Voter\EntryVoter"
7 
"App\Security\Voter\MagazineVoter"
8 
"App\Security\Voter\MessageThreadVoter"
9 
"App\Security\Voter\MessageVoter"
10 
"App\Security\Voter\NotificationVoter"
11 
"App\Security\Voter\OAuth2UserConsentVoter"
12 
"App\Security\Voter\PostCommentVoter"
13 
"App\Security\Voter\PostVoter"
14 
"App\Security\Voter\UserVoter"

Access decision log

# Result Attributes Object
1 DENIED ROLE_USER 
null
 
"Scheb\TwoFactorBundle\Security\Authorization\Voter\TwoFactorInProgressVoter"
 ACCESS ABSTAIN 
"Symfony\Component\Security\Core\Authorization\Voter\RoleHierarchyVoter"
 ACCESS DENIED 
"App\Security\Voter\EntryCommentVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\EntryVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\MagazineVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\MessageThreadVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\MessageVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\NotificationVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\OAuth2UserConsentVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\PostCommentVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\PostVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\UserVoter"
 ACCESS ABSTAIN
Show voter details
2 DENIED moderate 
App\Entity\EntryComment {#1365
  +user: Proxies\__CG__\App\Entity\User {#1371 …}
  +entry: App\Entity\Entry {#1805 …}
  +magazine: App\Entity\Magazine {#311
    +icon: Proxies\__CG__\App\Entity\Image {#292 …}
    +name: "askelectronics@discuss.tchncs.de"
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  +body: """
    i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
    \n
    starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
    \n
    more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
    \n
    and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
    \n
    there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
    \n
    the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
    \n
    at the end of the day the most important material in any antenna are tradeoffs
    """
  +lang: "en"
  +isAdult: false
  +favouriteCount: 1
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  +lastActive: DateTime @1692236729 {#1602
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  +mentions: [
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    "@abs_solution@discuss.tchncs.de"
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  +children: Doctrine\ORM\PersistentCollection {#2451 …}
  +nested: Doctrine\ORM\PersistentCollection {#2466 …}
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  +favourites: Doctrine\ORM\PersistentCollection {#2489 …}
  +notifications: Doctrine\ORM\PersistentCollection {#60 …}
  -id: 26058
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  +ranking: 0
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  +visibility: "visible             "
  +apId: "https://discuss.tchncs.de/comment/2085163"
  +editedAt: null
  +createdAt: DateTimeImmutable @1692236729 {#1941
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}
 
"Scheb\TwoFactorBundle\Security\Authorization\Voter\TwoFactorInProgressVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\EntryCommentVoter"
 ACCESS DENIED 
"App\Security\Voter\EntryVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\MagazineVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\MessageThreadVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\MessageVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\NotificationVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\OAuth2UserConsentVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\PostCommentVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\PostVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\UserVoter"
 ACCESS ABSTAIN
Show voter details
3 DENIED edit 
App\Entity\EntryComment {#1365
  +user: Proxies\__CG__\App\Entity\User {#1371 …}
  +entry: App\Entity\Entry {#1805 …}
  +magazine: App\Entity\Magazine {#311
    +icon: Proxies\__CG__\App\Entity\Image {#292 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
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      Rules\n
      -----\n
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      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
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      date: 2024-10-20 10:40:08.0 +02:00
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    +moderators: Doctrine\ORM\PersistentCollection {#283 …}
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    +moderatorRequests: Doctrine\ORM\PersistentCollection {#268 …}
    +entries: Doctrine\ORM\PersistentCollection {#226 …}
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  +parent: Proxies\__CG__\App\Entity\EntryComment {#2353 …}
  +root: Proxies\__CG__\App\Entity\EntryComment {#2353 …}
  +body: """
    i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
    \n
    starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
    \n
    more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
    \n
    and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
    \n
    there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
    \n
    the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
    \n
    at the end of the day the most important material in any antenna are tradeoffs
    """
  +lang: "en"
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  +children: Doctrine\ORM\PersistentCollection {#2451 …}
  +nested: Doctrine\ORM\PersistentCollection {#2466 …}
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  +reports: Doctrine\ORM\PersistentCollection {#2357 …}
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"Scheb\TwoFactorBundle\Security\Authorization\Voter\TwoFactorInProgressVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\EntryCommentVoter"
 ACCESS DENIED 
"App\Security\Voter\EntryVoter"
 ACCESS ABSTAIN 
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 ACCESS ABSTAIN 
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 ACCESS ABSTAIN 
"App\Security\Voter\MessageVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\NotificationVoter"
 ACCESS ABSTAIN 
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 ACCESS ABSTAIN 
"App\Security\Voter\PostCommentVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\PostVoter"
 ACCESS ABSTAIN 
"App\Security\Voter\UserVoter"
 ACCESS ABSTAIN
Show voter details
4 DENIED moderate 
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  +user: Proxies\__CG__\App\Entity\User {#1371 …}
  +entry: App\Entity\Entry {#1805 …}
  +magazine: App\Entity\Magazine {#311
    +icon: Proxies\__CG__\App\Entity\Image {#292 …}
    +name: "askelectronics@discuss.tchncs.de"
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      \n
      3: No commercial stuff, buying, selling or valuations.\n
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      ---
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  +image: null
  +parent: Proxies\__CG__\App\Entity\EntryComment {#2353 …}
  +root: Proxies\__CG__\App\Entity\EntryComment {#2353 …}
  +body: """
    i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
    \n
    starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
    \n
    more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
    \n
    and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
    \n
    there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
    \n
    the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
    \n
    at the end of the day the most important material in any antenna are tradeoffs
    """
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