This listing includes 3D printable components for building a Dualband Flowerpot Antenna (2m/70cm), as detailed in my blog post:
🔗 Dualband Flowerpot Antenna Build Guide
📌 Key Features:
- ✅ Dualband operation: Optimized for both 144–146 MHz (2m) and 430–440 MHz (70cm) amateur radio bands.
- ✅ Internal quarter-wave elements: Uses RG58 coaxial cable with precise λ/4 stripping and folding to form a matched antenna without exposed metal.
- ✅ Choke section: RF choke is implemented to suppress common-mode currents and improve radiation pattern.
- ✅ Encapsulated design: Entire radiating section is protected inside a PVC pipe, making it suitable for both indoor and outdoor use.
- ✅ Omnidirectional vertical polarization: Great for base station use or fixed portable setups with consistent 360° coverage.
- ✅ Tool-free assembly support: The included 3D-printed parts ensure easy alignment, strain relief for the cable, and optional mounting holes.
- ✅ Weather protection: Top cap and sleeve parts reduce exposure to water ingress and UV damage.
- ✅ Lightweight and portable: Perfect for field use, apartment balconies, or temporary setups.
This antenna is ideal for hams looking for a low-cost, easy-to-build, and reliable dualband antenna with great SWR and performance on both VHF and UHF.
SWR is around 1.28 at 145Mhz & 1.33 at 433Mhz
I recommend to print it with ASA or ABS to more resistant for UV, heat & outside usage conditions.
Printed with Ender 3 V3 SE + Sonic Pad + Ceramic Hotend + Microzey Gray ASA on 260C Nozzle | 105C Bed
You can find more info about antenna on here:
🔗🔗 Original antenna concept by VK2ZO
Orhun Avdzhu TA4VCU
