Radio, TV & Video Supplier South Africa - Local Stock for AV Installers & Makers

Fast local access to radio, TV and video components

Find the connectors, coax, RF adapters, aerials, set-top parts and video accessories you need without long import waits. Communica maintains broad local inventory for installers, audiovisual technicians, students and makers - so you can finish jobs on schedule and produce working prototypes quickly. Shop Now, Check Stock in Samrand or Request a Quote and keep projects moving with parts that are in-country.

Why local stock matters for South African AV work

• Availability and lead time: avoid long overseas shipping and customs delays for urgent repairs and site installs.
• VAT invoices and account quotes: consolidated billing for institutions, schools and procurement teams.
• Branch pickup: collect from Samrand head office, or check our Pretoria and Cape Town branches for same-day collection.

Whether you are fitting coax for a communal DSTV feed, repairing a radio tuner module, or prototyping an RF front-end for a student project, compatibility notes and accessory bundles reduce troubleshooting time. See our product ranges and categories to explore compatible parts: Shop by category.

Typical parts and spec callouts to check

When selecting radio-TV-video hardware, confirm these key specs to avoid rework:

• Connector type and gender (BNC, F-type, SMA, IEC) - match cable and device ends.
• Impedance (50 ohm vs 75 ohm) - mismatch causes signal loss; most TV/coax installations use 75 ohm.
• Cable type and attenuation (RG6, RG59): longer runs need lower-loss cable or amplification.
• Shielding and braid coverage: higher shielding reduces interference in urban installs.

Need brand choices? We stock many maker- and industry-focused brands for AV and RF work - browse brands and find compatible accessories at Shop by Brand. If you want to see our full offering across categories, check All Products.

Specification quick-reference table

Compare common connector and cable choices at a glance:

For hands-on guidance on branch collections and trading hours, view our branch details: Branches & Trading Hours.

Compatibility guidance, accessory bundles and installation tips

Match connectors and cable impedance first, then size your amplifier or splitter to the expected run length. For DIY and educational builds, choose pre-terminated leads and tested adapter kits to speed assembly and reduce measurement needs. We offer accessory bundles that pair coax, connectors, and mounting hardware for common installations - ask for a Quote or Compare Specs when ordering larger quantities.

Simple calculations and wiring diagram

Use this basic formula to estimate signal loss over coax runs and decide whether to add an amplifier: Attenuation (dB) = cable attenuation per metre (dB/m) × run length (m). Example: RG6 at 6 GHz has higher loss than lower frequencies - for long runs, choose lower-loss variants.

Basic wiring ASCII for a single TV feed using an F-type splitter:

Antenna -----[F-connector]----+----[F-connector]---- TV1
                               |
                               +----[F-connector]---- TV2

Troubleshooting common AV faults

• No picture or weak signal: check connector seating, replace suspect RG59 with RG6 where possible, verify 75 ohm path.
• Intermittent audio/video: inspect braid continuity, swap adapter types (BNC vs F-type) and check for damaged dielectric.
• RF noise or hum: improve grounding and use better-shielded cable; check local interference sources.

Still unsure which parts suit your use case? Our experienced team can advise on component selection, provide VAT invoices for institutional purchases, and assemble quote bundles for project procurement. Learn more about our company and service ethos on our About page: About Communica.

Objection handling and purchasing options

Worried about lead times or bulk buying? We publish real-time stock for many items and can check availability at Samrand before you travel. For education and tertiary labs we provide consolidated quotes and VAT invoices to simplify procurement. If a specific brand or part is out of stock, we can suggest widely compatible alternatives or reserve incoming stock and notify you.

In summary: choose parts by impedance and connector type, plan for attenuation on long runs, use pre-made kits to speed installations, and rely on local stock to avoid long delays. Explore product ranges and see immediate availability at our homepage and collections: Communica homepage or browse categories at Collections. Ready to proceed? Check Stock in Samrand or Request a Quote to get tailored support and local supply for your radio-TV-video project.