ANT TAPE · Field Accessories
A field-use accessory that supports transport, organization, deployment, or maintenance.
Why operators make room for it
Keep the working kit organized, serviceable, and ready to move
A smooth activation often depends on the small tools and carrying solutions that never appear in the signal report.
That is where CHA ANT TAPE enters the kit. The Antenna Tape Measure 2M–30M is a purpose-built tool engineered specifically for amateur radio operators who design, deploy, and tune antennas in the shack or the field. This is not a generic tape measure—it’s a precision antenna reference that puts critical electrical lengths right at your fingertips, saving time, reducing errors, and eliminating guesswork.
For the operator, that means less time untangling, searching, measuring, or repacking—and more time building and operating the station the trip was meant for.
Quick product reference
Key Specifications
- Product type
- Field Accessories
- Primary role
- A field-use accessory that supports transport, organization, deployment, or maintenance.
- Selection rule
- Confirm fit, quantity, material, and documented use
- RF role
- Not an RF component unless explicitly documented
- Field role
- Transport, organization, deployment, maintenance, or replacement accessory
- Selection checks
- Confirm size, material, quantity, fit, and documented use
- Included quantity
- Determined by the selected product or pack variant
- Compatibility boundary
- Not an RF component unless the product record explicitly assigns an RF role
Operator decision support
Plan the complete setup
See what this product is best suited for, what the documented setup needs, and the boundaries to confirm before deployment.
- Best for
A smooth activation often depends on the small tools and carrying solutions that never appear in the signal report.
- What else you need
Confirm fit, quantity, material, and documented use
- Limitations
Not an RF component unless the product record explicitly assigns an RF role
What an operator can do
- Use the accessory for the transport, storage, deployment, maintenance, or organization role described.
- Confirm size, quantity, material, fit, and included contents before ordering.
- Do not treat a convenience accessory as an RF or structural component unless the completed-system guide documents that role.
Complete product details
Antenna Tape Measure 2M–30M
Precision Antenna Building, Simplified
The Antenna Tape Measure 2M–30M is a purpose-built tool engineered specifically for amateur radio operators who design, deploy, and tune antennas in the shack or the field. This is not a generic tape measure—it’s a precision antenna reference that puts critical electrical lengths right at your fingertips, saving time, reducing errors, and eliminating guesswork.
Featuring a 25-foot industrial-grade tape, this rugged tool includes clearly printed, pre-calculated antenna lengths for the most commonly used HF and VHF bands. It is ideal for constructing dipoles, verticals, and loop antennas up to 30 meters, whether you’re operating portable, from an HOA-restricted location, or building a permanent installation.
Integrated Antenna Length Markings
- ¼-Wave markings: 2M, 6M, 10M, 15M, 17M, 20M, 30M
- ½-Wave markings: 2M, 6M, 10M, 15M
- Full-Wave markings: 2M, 6M
- Loop antenna markings: 10M, 15M, 17M, 20M, 30M
All markings are calculated to give you fast, reliable starting lengths for efficient antenna construction and tuning—no charts, apps, or mental math required.
Adjustable Counterpoise Capability
In addition to antenna building, the Antenna Tape Measure can be used as a fully adjustable counterpoise for ¼-wave vertical antennas. Simply extend the tape to the desired length and adjust in real time—perfect for portable operations, field tuning, emergency communications, and experimentation.
¼-Wave Counterpoise Reference Table
(Free-space electrical lengths — trim/tune as needed for real-world conditions)
|
Band |
Start (MHz) |
¼λ Counterpoise |
Mid (MHz) |
¼λ Counterpoise |
End (MHz) |
¼λ Counterpoise |
|---|---|---|---|---|---|---|
|
2M |
144.000 |
1.71 ft / 0.52 m |
146.000 |
1.68 ft / 0.51 m |
148.000 |
1.66 ft / 0.51 m |
|
6M |
50.000 |
4.92 ft / 1.50 m |
52.000 |
4.73 ft / 1.44 m |
54.000 |
4.55 ft / 1.39 m |
|
10M |
28.000 |
8.78 ft / 2.68 m |
28.850 |
8.52 ft / 2.60 m |
29.700 |
8.28 ft / 2.52 m |
|
15M |
21.000 |
11.71 ft / 3.57 m |
21.225 |
11.59 ft / 3.53 m |
21.450 |
11.46 ft / 3.49 m |
|
17M |
18.068 |
13.61 ft / 4.15 m |
18.118 |
13.57 ft / 4.14 m |
18.168 |
13.53 ft / 4.13 m |
|
20M |
14.000 |
17.56 ft / 5.35 m |
14.175 |
17.35 ft / 5.29 m |
14.350 |
17.14 ft / 5.22 m |
|
30M |
10.100 |
24.35 ft / 7.42 m |
10.125 |
24.29 ft / 7.40 m |
10.150 |
24.23 ft / 7.38 m |
Note: Environmental factors, insulation, ground proximity, and antenna geometry will affect final tuning. These values are intended as accurate starting points.
Built for the Real World
- Industrial-grade, ruggedized construction
- No-slip protective housing
- Heavy-duty belt clip for easy carry
Keep it in your radio shack, go-bag, glove box, or field kit. Whether you’re operating POTA, SOTA, EMCOMM, or just experimenting with antennas at home, this is one of those tools you’ll reach for again and again.
The Antenna Tape Measure 2M–30M also makes a practical, thoughtful gift for any serious amateur radio operator who values efficiency, accuracy, and well-built gear.
