F Connector Cable: Threaded Termination
Quick answer / TL;DR: Short answer: use compression F-connectors for reliability; twist-on types are for temporary work at best. Prepare the cable so no braid strand touches the centre conductor, cut the dielectric square, and push the connector fully home before crimping. Weatherproof every exterior joint with a boot or self-amalgamating tape and a drip loop.
Three coaxial families: BNC for CCTV, F-type for TV, N for RF – each with its impedance.The F-connector is the threaded coaxial termination used on aerial, cable and satellite feeds. The connector itself is cheap and the preparation is what decides whether the joint survives: a stray braid strand across the centre conductor produces a short that looks like a dead cable.
This is the F-connector guide: the types, the preparation steps, and the weatherproofing that keeps an exterior joint alive.
The Types
| The type | The method | The verdict |
|---|
| Compression | Crimped with a tool | Reliable, preferred |
| Twist-on | Screwed onto the braid | Temporary only |
| Push-on | Friction fit | Indoor test use |
The compression type grips the jacket and the braid mechanically, which is why it survives weather and handling.
The Preparation
- Strip the jacket without nicking the braid
- Fold the braid back evenly
- Remove the dielectric to the right length
- No strand touching the centre conductor
- Push home before crimping
Almost every 'dead cable' after a self-install is a strand short, not a faulty cable.
Standards and Verification
| The reference | The relevance |
|---|
| IEC 61169 | F-connector standards |
| 75-ohm impedance | The feed |
| Field test | Signal and continuity, no short |
Per-SKU connector dimensions are not provided in the knowledge base. The standards are fixed; check continuity and short before connecting equipment.
Practical Notes
A shorted F-connector can damage the tuner it feeds. Test continuity between centre and shield before plugging anything in – it takes ten seconds and has saved more receivers than any other habit.
Real-World Applications
The satellite dish
Four feeds terminated with compression F-connectors, each tested for shorts and weatherproofed: signal stable through a winter.
The stray strand
A self-installed connector with one braid strand across the centre: no signal. The connector re-made – the cable had been fine.
Related reading: coax cable — blogs/news/coax-cable
Related reading: rj45 connector — blogs/news/rj45-connector
Related reading: f connector types — blogs/news/f-connector-types
Frequently Asked Questions
Compression or twist-on?
Compression for reliability; twist-on only as a temporary fix.
How do I avoid shorts?
Fold the braid back evenly and check no strand touches the centre.
Do I need to weatherproof?
Yes – boots or self-amalgamating tape plus a drip loop.
Can a bad connector damage equipment?
A short can damage the tuner.
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