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RG58 Coaxial Cable Product Guide: Technical Specifications, Variants and Sourcing Tips for B2B Buyers
Kiam evaluas rg58 kablons por granda akviro, la varianto-sufikso estas la unua detalo, kiu gravas. rg58/u, rg58a/u kaj rg58c/u havas la saman eksteran diametron de 0,195 coloj kaj similan prezonivelon, sed iliaj impedanco, centrokonduktila konstruo kaj mantelo-materio diferencas en manieroj, kiuj efikas ambaŭ la elektran performadon kaj la konformecajn postulojn. Trakti ĉiujn tri kiel interŝanĝeblajn estas mallonga vojo, kiu povas manifestiĝi poste kiel problemoj pri revena perdo aŭ malsukcesoj pri konektoro-kongrueco, kaŭzante riparlaboregon, kiu ne aperas en la unuoprezo sed konstante aperas en la totala elspezo por implanto.
Hoc manuale ad aequipes emptionis confectum est, quae optiones RG58 coaxiales comparant pro infrastructura telecommunicativa, constructione mensarum experimentorum, et integratione systematum antennarum. Hoc tractat specificata variantium ad approbationem technicam, datos attenuationis qui tuum usabilem ambitum frequentialis definunt, et criteria qualificandi suppeditatorum quae determinant utrum partus cum eo quod in charta appropasti congruat.
RG58/U contra RG58A/U contra RG58C/U: Comparatio Specificatarum
Tres principales variantes RG58 inter se differunt secundum impedimentum, conductorem centralem, tegumentum, et materiam tuniculae. Hic est comparatio directa ad aestimationem emptionis:
| Parameter | RG58/U | Rg58A/U | RG58C/U |
|---|---|---|---|
| Impedantia Characteristica | 53,5 Ω | 52 Ω | 50 Ω |
| Conductor medius | Cuprum solidum 20 AWG | cuprum 7 vel 19 filorum | Strat cupru |
| Insulatio | Polyethylenum (PE) | Solidum Polyethylenum | Polyethylenum (PE) |
| Scutum | Tela unica intexta, 70–95% operimentum | Tunica Singula | Tesserarius Braid Stannatus Cuprum |
| Tunicam | PVC | PVC | Compositum non contaminans |
| Maxima Tensio | 1900 V RMS | 1900 V RMS | 1900 V RMS |
| Attenuation @ 400 MHz (dB/100 ft) | 11.7 | 13.2 | 14.0 |
| Diameter exterior | 0.195 in | 0.195 in | 0.195 in |
RG58C/U's 50 Ω characteristic impedance is the exact match for standard 50-ohm RF system design, making it the variant specified in MIL-C-17-compliant applications. Its non-contaminating jacket compound is required in aviation wiring harnesses and other environments where conventional PVC off-gassing or plasticizer migration creates contamination risk. RG58A/U, with its 7- or 19-strand center conductor, is the better choice when the cable will flex repeatedly rather than run as a fixed installation; the stranded construction resists fatigue cracking at bend points. Plain RG58/U with its solid 20 AWG core offers slightly lower attenuation at 400 MHz but is less suitable for dynamic installations.
Pro infrastructuram telecommunicativam generalem, instrumenta, et lineas alimentationis antennarum, variantes RG58A/U et RG58C/U sunt frequentius specificatae. Electio inter eas pendet ex eo, utrum exacta adaptatio ad 50 Ω et conformitas tegumenti requirantur, an potius flexibilitas et compatibilitas cum connexibus praecipiantur in electione.
Attenutatio vs. Frequentia: Limites realistici pro applicatione tua statuendi
Antequam longitudines ductus RG58 specifiques, profilum attenutationis recense. RG58 est ductus tenuis et flexibilis; eius amissio signali cito crescit supra 200 MHz.
| Frequency | Attenutatio RG58 (dB / 100 pedes) |
|---|---|
| 1 MHz | 0.4 |
| 10 MHz | 1.4 |
| 50 MHz | 3.3 |
| 100 MHz | 4.9 |
| 200 MHz | 7.3 |
| 400 MHz | 11.2 |
| 700 MHz | 16.9 |
| 900 MHz | 20.1 |
| 1 GHz | 21.5 |
Ad 400 MHz, ductus 100-pedalis plus quam 11 dB amissionis accumulat. Ad 1 GHz, haec quantitas superat 21 dB, quod pro plurimis applicationibus distributionis signali prohibitorium reddit. Si tuum systema supra 500 MHz operatur et longitudines ductuum ultra 15–20 pedes sunt, LMR-195 vel LMR-200 multo minorem attenutationem offert in eadem classe diametri exterioris 0,195-pollicis et simul cum RG58 coaxiali in electione ductuum consideranda sunt.
Ad frecuentias infra 300 MHz — iuncturae instrumentales, breves lineae alimentationis antennarum, GPS vehiculorum, et interconnectiones in armariis experimentorum — cavo RG58 manet optio practica. Compatibilitas eius cum connexibus communibus (BNC, SMA, TNC, et N), coniuncta cum disponibilitate in bobinis standard, favet tam constructionibus singularibus quam acquisitionibus in volumine.
Criteria Emptionis B2B: Certificata, Longitudines Bobinarum, et Optiones Sectionis Ad Mensuram
Certificatio et Documenta Conformitatis
Propter electronica defensionis, aviationem, et infrastructuram diffusionis emendanda, confirma ut supplicator praebere possit data experimentorum MIL-C-17 aut listam UL pro variante specifica ordinata. Documentatio magis valet quam suffigium solum: cavo ad marketum ut RG58C/U testi reportum afferre debet quod confirmat compositionem tegumenti non contaminantis et parametra electrica mensurata pro specifice loto. Tabulae specificationum ex catalogo normam describunt; reportus experimentorum pro loto confirmationem dat de actu productionis. In pacco qualificandi supplicatoris, secundus ille documentum est qui valet.
Optiones longitudinis bobinae et carusselis
Magnitudines communes commerciales pro spoliis RG58 coaxiales sunt 100 m (328 ft), 200 m, et 500 m. Proiecta magna infrastructurae proficiunt ex tamburis 500 m ad minuendos iuncturas inter cursus, quae sunt et impensae laboris et potestialis discontinuitas impedantiae. Unum periculum in emptione quod minus quam oportet attenditur: variatio inter lota in spoliis. Primum spolium quod inspectionem initialem superat non garantit quod tertium spolium ex alio loto productionis eandem specificationem attenuationis implebit. Petitio ut ordo plurium spoliorum ab unico loto productionis mittatur est requisitum simplicissimum, et facultas suppeditantis ad hoc accommodandum ipsa est signum qualitatis.
Optiones Sectionis ad Longitudinem et Compositionis
For BOMs that specify discrete cable lengths — antenna distribution panels, test rack builds, vehicle harnesses, factory cut-to-length service and pre-terminated assemblies reduce field termination variability. A factory-assembled cable with a tested insertion loss value gives quality teams an objective acceptance criterion; field-crimped connectors introduce connector-to-connector variation that is difficult to control at scale without dedicated inspection tooling.
Zhenjiang Jiewei Electronics manufactures RG58/U 50 ohm RF coaxial cable with 25 years of experience in RF coaxial cables, connectors, and cable assemblies. As a direct factory source, Jiewei offers supply chain traceability back to production records, which matters when batch consistency and certification documentation are required for procurement approval.
B2B Buyer Qualification Checklist for RG58 Cable Procurement
- Confirm the exact variant suffix (RG58/U, RG58A/U, or RG58C/U) and verify that its characteristic impedance matches your system design requirement
- Request the electrical test report for the specific production batch, not only the catalog specification sheet
- Verify spool length options and confirm that multi-spool orders can be fulfilled from the same production run
- Confirm jacket material — standard PVC versus non-contaminating compound, particularly for compliance-sensitive or contamination-controlled environment
- Ask about cut-to-length and factory-terminated assembly capability for high-volume BOM requirements
- Confirm connector compatibility and assembly options: BNC, SMA, TNC, and N are the most common terminations for RG58 cable applications. For systems requiring N-type jumpers, see Jiewei's RF coaxial jumper cable assemblies for interface compatibility reference
Gradus revisionis specificatorum et gradus qualificandi suppeditatores descripti supra addunt tempus ante initium. Quod autem prohibent est labor repetitus in fasciculis post implentationem. Est autem talis defectus qui absens est ex calculo pretii per unitatem, sed constanter praesens in summa pretio proiecti.
