Adjustable Antenna Base – Deck Mount – Investment Cast 316 Stainless Steel
This Adjustable Antenna Base features dual swiveling mounts for full adjustability and a ratchet-style handle for side or deck mounting. It is designed with an integral feed system for Loran cable and accepts any standard antenna with 1”-14 threads. It is constructed of corrosion-resistant investment-cast 316 stainless steel and installs with four 1/4” FH fasteners (not included).
*An optional gasket (329231) is sold separately.
Specifications:
- Fastener: 1/4: FH
- Weight: 1.48 oz.
Specifications:
- Type: Mounting Brackets

![Sea-Dog Adjustable Antenna Base - Deck Mount - Investment Cast 316 Stainless Steel [329230-1]](https://www.cycleframewarehouse.com/wp-content/uploads/2026/11/sea-dog-adjustable-antenna-base-deck-mount-investment-cast-316-stainless-steel-3.webp)
![KVH Starlink Gen 3 Router Mount [19-1240-18]](https://www.cycleframewarehouse.com/wp-content/uploads/2026/11/kvh-starlink-gen-3-router-mount-19-1240-18.webp)
![Shakespeare 6187 SleekCompact Stainless Steel Rotatable 4-Way Ratchet Mount [6187]](https://www.cycleframewarehouse.com/wp-content/uploads/2026/11/shakespeare-6187-sleekcompact-stainless-steel-rotatable-4-way-ratchet-mount-6187.webp)
![Attwood PowerBase Antenna - White Powered Fold-Down Antenna Base [6100-AT-7]](https://www.cycleframewarehouse.com/wp-content/uploads/2026/11/attwood-powerbase-antenna-white-powered-fold-down-antenna-base-6100-at-7.webp)
![Shakespeare Quick Connect SS Mount w/Cable f/Quick Connect Antenna [QCM-S]](https://www.cycleframewarehouse.com/wp-content/uploads/2026/11/shakespeare-quick-connect-ss-mount-w-cable-f-quick-connect-antenna-qcm-s.webp)
![Seaview Starlink Mini Mounting Bracket f/1"-1-1/4" Rails - Supplied w/Base Bracket f/1"-14 Threaded Base [SVRCLMINI]](https://www.cycleframewarehouse.com/wp-content/uploads/2026/11/seaview-starlink-mini-mounting-bracket-f-1-1-1-4-rails-supplied-w-base-bracket-f.webp)
![TACO Grand Slam 860 Electric VHF Antenna Mount [GS-860]](https://www.cycleframewarehouse.com/wp-content/uploads/2026/11/taco-grand-slam-860-electric-vhf-antenna-mount-gs-860.webp)
![Shakespeare Quick Connect SS Rail Mount w/Cable f/Quick Connect Antenna [QCM-SR]](https://www.cycleframewarehouse.com/wp-content/uploads/2026/11/shakespeare-quick-connect-ss-rail-mount-w-cable-f-quick-connect-antenna-qcm-sr.webp)
![Digital Antenna 18" Antenna Extension - White [518-EW]](https://www.cycleframewarehouse.com/wp-content/uploads/2026/11/digital-antenna-18-antenna-extension-white-518-ew.webp)