Comet GP-1 Dual Band 146/446 MHz Fiberglass Base Antenna - Compact

In this review the Comet GP-1 Dual-Band base antenna is evaluated for small-station VHF/UHF use and for operators who need a compact, heavy-duty antenna with measurable gain. The bottom line: this antenna is for hams and two-way radio users who want reliable performance from a short, weatherproof package. Its main selling point is a one-piece UV-stabilized fiberglass radome paired with respectable gain on both 2 m and 70 cm bands, making it a practical choice for attic, mast, or light tower mounting where space and durability matter.

Key Features

• Dual-band coverage: Works across 144-148 MHz and 442-450 MHz so users can run both 2 m and 70 cm without swapping antennas.
• Measured gain: Provides about 3.0 dBi on 146 MHz and 6.0 dBi on 446 MHz for improved signal reach compared with a simple whip.
• Compact form factor: At just over 4 ft tall the antenna fits attic, closet, or low-mast installations where taller bases are impractical.
• High power rating: Handles up to 200 watts SSB and 100 watts FM, letting operators use higher-power base radios safely.
• Robust construction: One-piece heavy-duty fiberglass radome with aluminum and stainless steel mount hardware resists weather and simplifies mounting.
• Standard connector: SO-239 feedpoint makes hookup straightforward for common coax and PL-259 fittings.

Who It's For

The Comet GP-1 is aimed at amateur radio operators, small base stations and two-way radio users who need a compact, durable base antenna with genuine dual-band capability. It is especially useful when installation height is limited or when a low-visual-impact outdoor antenna is required.

Operators who need extreme directional gain, rooftop peak performance, or a dedicated single-band high-gain array should look elsewhere; the GP-1 favors compactness and convenience over large-scale gain or directional properties.

Pros & Cons

Pros

• Solid dual-band performance with clear gains on both 2 m and 70 cm for everyday use.
• Heavy-duty fiberglass radome and stainless hardware promise long outdoor life with minimal maintenance.
• Short length keeps installation simple in attics, small yards, or on short masts.

Cons

• Not a high-gain directional antenna, so it cannot replace multi-element yagis for long-distance weak-signal work.

Specifications

Band Coverage	144-148 MHz, 442-450 MHz
Gain	3.0 dBi @146 MHz; 6.0 dBi @446 MHz
VSWR	1.51 or less
Power Rating	200 W SSB / 100 W FM
Length	4 ft 2 in
Weight	2 lbs.
Connector	SO-239

Our Verdict

The Comet GP-1 is a practical, well-built dual-band base antenna for hams and two-way radio users who need reliable VHF/UHF coverage from a short, weatherproof package. Its combination of modest gain, high power handling and compact size makes it good value for limited-space installations and everyday base-station use.

Frequently Asked Questions

Can this antenna be mounted indoors in an attic?
Yes; its 4 ft 2 in height and light 2 lb weight make attic or closet installation feasible while still providing dual-band performance.

What connector is used for the feedline?
The antenna uses an SO-239 connector compatible with standard PL-259 coax terminations.

How much transmit power can it handle?
It is rated up to 200 watts SSB and 100 watts FM, suitable for most base radios within those limits.