Import Duplexer — Buy in wholesale FOB from Supplier in China
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Duplexer
The SGQ series Duplexer is a precision radio‑frequency filtering device manufactured with an aluminium‑alloy housing and copper RF contacts. It supports VHF bands 136‑172 MHz and 220‑240 MHz as well as UHF bands 336‑370 MHz and 380‑470 MHz, offering a consistent 500 kHz bandwidth across most models. The unit maintains a VSWR of 1.5, enabling simultaneous transmit and receive on a single antenna without excessive signal reflection.
Two configuration families are offered: a standard line and a D‑series, with model numbers SGQ‑150, SGQ‑230 and SGQ‑450. The SGQ‑150 variant provides a narrower 200 kHz bandwidth, useful for tightly spaced channels. Typical operating temperature for aluminium‑alloy RF equipment is - 40 °C to +85 °C and power handling is around 10 W, aligning with industry norms for professional broadcasting hardware.
These duplexers are shipped to broadcasters, public‑safety agencies and commercial wireless infrastructure providers that require reliable two‑way communication. Buyers should confirm minimum order quantities, incoterms and payment conditions directly with the supplier, as those details are not disclosed in the listing. The supplier can arrange FOB or CIF shipping from its Guangzhou facility.
| Material | Aluminium Alloy Housing with Copper RF Contacts |
| Frequency Coverage (VHF) | 136-172 MHz, 220-240 MHz |
| Frequency Coverage (UHF) | 336-370 MHz, 380-470 MHz |
| Bandwidth | 500 kHz (typical), 200 kHz for SGQ‑150 |
| VSWR | 1.5 |
| Models Available | SGQ‑150, SGQ‑230, SGQ‑450 |
| Configuration Options | Standard, D‑series |
| Operating Temperature | Typical - 40 °C to +85 °C |
| Power Handling | Typical up to 10 W |
Guangzhou Qicai Business Trade Co., Ltd is an imported supplier located at Haizhu Qu Xingang Road 28, Guangzhou, Guangdong, China. The company holds a harbour‑level trust tier and currently shows a zero‑percent response rate, indicating that enquiries may require follow‑up through the platform’s messaging system.
The firm specialises in exporting RF communication components, notably the SGQ series duplexers, to a global market that includes broadcasting, public‑safety and telecom infrastructure projects. Its product catalogue focuses on precision filtering devices and it does not provide additional certification documentation in the public listing.
The SGQ series RF duplexers are precision radio frequency filtering devices designed for two-way communication systems, covering VHF bands from 136-172 MHz and 220-240 MHz, as well as UHF bands from 336-370 MHz and 380-470 MHz. With a consistent 500 KHz bandwidth (200 KHz for SGQ-150) and VSWR of 1.5 across all models, these units enable simultaneous transmit and receive operations on a single antenna, making them essential for professional broadcasting, public safety radio networks, and commercial wireless infrastructure. Available in standard and D-series configurations, these duplexers serve the global market for RF communication equipment imports and telecom infrastructure deployments.
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Sourcing Duplexer from Guangzhou Qicai Business Trade Co., Ltd - China Import Guide
Before placing an order, request the detailed data sheet that lists the exact frequency bands, VSWR, bandwidth and power handling limits. Verify the model number matches your system’s channel plan and ask for a test report that confirms performance under your expected temperature range.
Logistics should be clarified with the supplier: typical lead times, preferred incoterms such as FOB Guangzhou Port or CIF Shanghai, and any freight forwarder requirements. Payment terms are not disclosed in the listing, so confirm whether a letter of credit or advance payment is required.
Quality assurance can be reinforced by arranging a pre‑shipment inspection focused on housing integrity, contact corrosion and VSWR measurement. Ask the supplier to provide the ISO and CE certificates, as well as a mill‑test report, to ensure the duplexer meets your project specifications.
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30 suppliersBuy Duplexer in Bulk — Verified Supplier in China
When sourcing Duplexer for your business, securing the right balance of quality and cost is essential. Guangzhou Qicai Business Trade Co., Ltd, a verified supplier based in China, offers this product with key specifications including SGQ-150 / SGQ-230 / SGQ-350 / SGQ-350D / SGQ-450 / SGQ-450D, 136-172 MHz (SGQ-150), 220-240 MHz (SGQ-230), 336-370 MHz (SGQ-350/350D), 380-470 MHz (SGQ-450/450D), and 200 KHz (SGQ-150), 500 KHz (all other models). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $60/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 8517.62, making it a staple in the Audio & Video Broadcasting Equipments sector with strong demand from importing countries worldwide.
Duplexer Specifications, Trade Terms & Pricing
Importing Duplexer requires careful attention to shipping logistics, customs compliance, and secure payment terms. Guangzhou Qicai Business Trade Co., Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 8517.62 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading import export marketplace designed to make cross-border trade secure and efficient.
About Guangzhou Qicai Business Trade Co., Ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Duplexer has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Audio & Video Broadcasting Equipments category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import Duplexer — Shipping, Logistics & Customs
Importing Duplexer requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 8517.62 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Duplexer
What is the wholesale price of Duplexer?
The current listed wholesale price for Duplexer from Guangzhou Qicai Business Trade Co., Ltd is $60/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Guangzhou Qicai Business Trade Co., Ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for Duplexer?
The supplier, Guangzhou Qicai Business Trade Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Duplexer. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Duplexer?
For international shipping and customs clearance, Duplexer is classified under HS Code 8517.62. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Duplexer from China?
To import Duplexer from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Guangzhou Qicai Business Trade Co., Ltd. Ensure you have the necessary import licenses for Audio & Video Broadcasting Equipments products in your destination country.
Is Guangzhou Qicai Business Trade Co., Ltd a verified supplier?
Yes, Guangzhou Qicai Business Trade Co., Ltd is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Duplexer?
The key specifications for Duplexer supplied by Guangzhou Qicai Business Trade Co., Ltd include SGQ-150 / SGQ-230 / SGQ-350 / SGQ-350D / SGQ-450 / SGQ-450D, 136-172 MHz (SGQ-150), 220-240 MHz (SGQ-230), 336-370 MHz (SGQ-350/350D), 380-470 MHz (SGQ-450/450D), and 200 KHz (SGQ-150), 500 KHz (all other models). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Duplexer?
Guangzhou Qicai Business Trade Co., Ltd offers Duplexer with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Duplexer the most?
Duplexer is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Guangzhou Qicai Business Trade Co., Ltd through our platform.
What certifications does this Duplexer supplier hold?
Guangzhou Qicai Business Trade Co., Ltd maintains international quality certifications. These ensure that the Duplexer meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Duplexer on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Guangzhou Qicai Business Trade Co., Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Guangzhou Qicai Business Trade Co., Ltd.
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