Frequency Range
400-900 MHz – Covers the complete UHF television band spectrum used for professional wireless microphone systems.
Lectrosonics Frequency Blocks
Block 19: 486.400-511.900 MHz
Block 20: 512.000-537.500 MHz
Block 21: 537.600-563.100 MHz
Block 22: 563.200-588.700 MHz
Block 23: 588.800-614.300 MHz
Block 24: 614.400-639.900 MHz
Block 25: 640.000-665.500 MHz
Block 26: 665.600-691.100 MHz
Zaxcom Frequency Blocks
Block A: 512-608 MHz
Block B: 606-698 MHz
Block C: 941-960 MHz (note: outside this antenna's optimal range)
Compatible Products
This SMA whip antenna works seamlessly with professional wireless systems including:
Lectrosonics: SRc, SRb, Venue receivers, and other SMA-equipped models
Zaxcom: ERX receivers, QRX series, and compatible recorder-mixers
Other professional UHF wireless systems with SMA antenna connections
Why You Need Whip Antennas
Flexibility and Durability
The whip design offers a critical advantage over rigid antennas: flexibility. On busy production sets, antennas are constantly at risk of being bumped, knocked, or caught on equipment and cables. A whip antenna can bend without breaking, significantly reducing the risk of damage to both the antenna and the sensitive SMA connector on your receiver. Rigid antennas, by contrast, can snap off or damage the receiver's connector when subjected to lateral force.
Portability and Practicality
Whip antennas are lightweight and compact, making them ideal for bag rigs and mobile sound carts where space is at a premium. Their flexible nature means they can be positioned without concern for clearance, and they won't puncture equipment bags or create snag hazards during transport.
The Importance of Having Backups
In professional production environments, redundancy is not optional—it's essential. Consider these scenarios:
Physical damage: Antennas can be stepped on, caught in cases, or damaged during setup and breakdown
Lost or misplaced: In the chaos of location work, small components can easily go missing
Last-minute replacements: When a receiver's fixed antenna fails, having a spare whip can save the day
Multiple receiver systems: Productions often run multiple receivers simultaneously, and standardizing on whip antennas means your spares work across your entire kit
The cost of a backup antenna is negligible compared to the cost of losing a take or delaying production. Professional sound mixers typically carry 3-5 spare antennas as standard practice.
Why Wire Cutters Are Essential
Here's where whip antennas offer a unique advantage: they can be field-tuned. Each whip antenna comes with a specific length optimized for its frequency range, but real-world conditions sometimes require adjustments:
Frequency optimization: You can precisely tune the antenna's length to match your specific operating frequency for optimal performance
Physical constraints: On tight locations, you may need to trim the antenna to fit within a specific space
Damaged tips: If the tip of the whip becomes damaged, you can cut it back to create a clean, functional antenna
Always carry quality wire cutters in your sound bag. They allow you to make precise, clean cuts without fraying the antenna element. A clean cut maintains proper RF characteristics, while a crushed or frayed end can degrade performance.
Professional Applications
This whip antenna is designed for sound professionals who demand reliability:
Production sound mixers working in film and television
Live event engineers managing wireless microphone systems
Broadcast technicians requiring consistent RF performance
House of worship and theater sound operators with permanent wireless installations
Technical Advantages
Omnidirectional pattern provides consistent signal reception regardless of transmitter orientation
Broad frequency coverage eliminates the need for frequency-specific antennas
Standard SMA connector ensures compatibility across professional systems
Replaceable and affordable compared to fixed-antenna receivers
Conclusion
The whip antenna with SMA connector represents a small investment that delivers outsized value in professional wireless audio applications. Its flexibility protects your equipment, its portability supports mobile workflows, and its field-adjustable design gives you control when you need it most. Combined with the practice of carrying backups and the right tools to maintain them, these antennas form the foundation of a reliable wireless system that won't let you down when it matters most.