Cobra 8 ft VHF Marine Fiberglass Antenna — 6dB — Fixed Mount — CM300008
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Cobra 8 ft VHF Marine Fiberglass Antenna — 6dB — Fixed Mount — CM300008
Extend your VHF radio’s range with the Cobra CM300008 8-foot fiberglass marine antenna. Delivering 6dB of gain and covering the full VHF marine band including NOAA weather frequencies up to 162 MHz, this antenna is a direct upgrade for any fixed-mount VHF radio installation. It comes complete with 15 feet of RG-58 coaxial cable pre-fitted with a molded PL-259 connector, and a dual-swivel corrosion-resistant nylon base for flexible mounting.
What’s Included
- 8 ft fiberglass VHF antenna
- 15 ft RG-58 coaxial cable with molded PL-259 connector
- Dual-swivel corrosion-resistant nylon base
Key Features
- 6dB gain for extended VHF transmission and reception range
- 8 ft fiberglass construction — durable and lightweight
- Extended frequency range up to 162 MHz — covers VHF marine band and NOAA weather channels
- 15 ft RG-58 coax with molded PL-259 connector — ready to connect
- Dual-swivel nylon base — corrosion resistant, flexible mounting angle
- Compatible with all VHF marine fixed-mount radios
Specifications
- Length: 8 ft
- Gain: 6dB
- Cable: 15 ft RG-58 coax
- Connector: PL-259 (molded)
- Frequency range: Up to 162 MHz
- Base: Dual-swivel, corrosion-resistant nylon
- Weight: 1,601g
Parts Desk Insights
Best use case: The CM300008 is the right antenna for boaters upgrading from a shorter 3 ft or 4 ft antenna to maximize VHF range on a fixed-mount radio. The 6dB gain of an 8 ft antenna provides significantly better range than a 3dB 4 ft antenna — particularly useful on larger vessels, open water passages, and in areas with busy marine traffic where reliable communication range matters. The 15 ft cable is sufficient for most helm-to-masthead or helm-to-hardtop runs; if your installation requires a longer cable run, plan for signal loss and consider a lower-loss cable type. The PL-259 connector is the standard for VHF marine antennas and is compatible with all fixed-mount VHF radios. Mount as high as possible on the vessel for best range — antenna height is the single biggest factor in VHF range.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.