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CHA SINGLE-EXT SHORT
CHA SINGLE-EXT SHORT
CHA SINGLE-EXT SHORT
CHA SINGLE-EXT SHORT
CHA SINGLE-EXT SHORT

Chameleon Antenna

CHA SINGLE-EXT SHORT

Sale price $99.00

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Out of stock

Compact 13.5 Inch MPAS READY Extension Sections

A modular extension sold in matched two- or four-section kits for documented configurations that need shorter height increments than the standard 27 in SINGLE EXT.

Fine control for modular builds

Add the height you need without adding a full-size extension

CHA SINGLE-EXT SHORT solves the support or mounting problem that must be handled before the intended antenna can be deployed safely and repeatably.

The CHA SINGLE-EXT SHORT gives system builders a precise 13. 5-inch increment for documented MPAS READY configurations. It is a small component with a valuable job: helping an operator tune radiator geometry, coil position, or isolated feedpoint height without carrying a longer section than the build requires. Use matched sections in the position defined by the completed antenna guide.

The practical value of CHA SINGLE-EXT SHORT is the operating position it makes possible. Think through the antenna above it, the surface or structure below it, and every adapter or stability component between them. A defined support chain gives a newcomer a repeatable installation and gives an existing owner another documented way to deploy equipment already in the kit.

For an MPAS READY customer, the longer-term value is reuse. This product may participate in more than one documented configuration as the station grows, provided each path is verified for the complete antenna. Shared threads and connectors are useful mechanically; they are never enough by themselves to prove electrical compatibility.

Quick product reference

Key Specifications

Product type
Modular MPAS READY extension section
Length
13.5 in (34.3 cm) per section
Kit options
  • 2 sections
  • 4 sections
Interface
3/8-24 male and female
Material
Anodized aluminum with stainless-steel hardware
Weight
Approximately 0.4 lb (0.18 kg) per section
Electrical role
Configuration-dependent: active radiator when in the RF path
Mechanical role
Center riser only when below a documented isolated feedpoint or insulator
Frequency / power
Determined by the completed documented antenna configuration

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

The difference between a packed component and a working radiator is knowing exactly where that component belongs in the RF system.

What’s included

2 × CHA SINGLE EXT SHORT

What else you need

Combine it with the specified base, loading, feedpoint, mount, support, and radial or counterpoise system.

Compatible with

3/8-24 male and female

Limitations
  • Tighten outer Nut (J) until snug (do not overtighten) using a 3/8 in.
  • Do not tighten or loosen the inner nut.
  • Tighten outer nut until snug (do not overtighten) using a 3/8 in.
  • Do not cut the Tail Wire until you are sure you have it tuned correctly.
Expansion options
  • CHA CFM-16
  • CHA CFM-34 HD
  • CHA SPIKE MOUNT
  • Field Guide
  • HOA Guide

What an operator can do

  • Add controlled 13.5 in increments below or above an MCC 2.0 where the verified configuration calls for an electrical radiator extension.
  • Raise an approved feedpoint or center assembly when the extension is on the mechanically supporting, electrically isolated side of that assembly.
  • Pack shorter extension sections in compact POTA, SOTA, EMCOMM, HOA, and travel kits.
  • Use two or four matched sections according to the selected product variant and completed antenna design.

Electrical radiator versus mechanical support

  • Electrical radiator: when the section is directly in the conductive RF path, it changes radiator length and tuning.
  • Mechanical riser: when installed below an approved isolated feedpoint or insulator, it can raise the assembly without becoming a dipole leg.
Do not assume compatibility from the thread alone. A 3/8-24 connection confirms physical fit only. The completed antenna guide determines electrical role, symmetry, loading, support, and tuning.

Documented-use guardrails

  • With MCC 2.0 vertical configurations, confirm the extension position, radiator, radial system, and tuning procedure in the completed-system guide.
  • For V-DIPOLE support, the extension belongs below the isolated dipole feedpoint as a center riser. It is not an instruction to lengthen one dipole leg.
  • Never add radial or counterpoise accessories to a dipole configuration.
  • Do not use an extension as a mast or structural adapter unless the completed configuration explicitly documents that role.

Package contents

  • One Kit variant: 2 x CHA SINGLE-EXT SHORT
  • Two Kits variant: 4 x CHA SINGLE-EXT SHORT

Triple Guarantee

1. Easy returns

If you are not completely satisfied with your purchase, you may return it within 30 days, subject to a 20% restocking fee. Please note that international orders and items marked as Final Sale are not eligible for returns.

2. Safe with us

Our website is 100% verified and all transaction and customer info is securely encrypted with the latest technology.

3. Need help?

Product advice, technical help, orders, shipping, returns and warranty requests start with a Support Desk ticket. New customer support is not handled through direct email. Reply to an existing ticket email to continue that same case.

Frequently asked

When will my order ship?
Current order status, processing estimates, and delivery timing are provided through checkout and order updates.

Do you ship internationally?
We sure do. Please note that international orders take significantly longer for delivery and may be subject to import/value-added taxes that are beyond our control.

How do I contact someone?
Customer service hours are Monday - Friday: 9am - 5pm PST. Please allow up to 1-2 days for someone to get back to you. We can be reached by phone at 888-628-9020 and by email here Customer Service

Overall rating: 5.0 / 5 from 5 reviews.

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Review highlights

Reviews

An awesome addition to the PERformer build

"The single-ext short is exactly what my ultra portable PERformer build needed! I use them to support the radials. Now everything fits in my sling pack and is super easy to carry and deploy. Thanks chameleon!"

— Jon S. (5/5)

Big plans for the short extensions

"I’m not ashamed to admit to being a Chameleon fan boy. Love the fact that the company has kept the same philosophy in a different design. Easy, inconspicuous portable transportation, a KISS, set it up, and get on the air."

— Adam W. (5/5)

CHA SINGLE-EXT SHORT Review.

"These are great extension. I own 4 of the CHA SINGLE-EXT, but sometimes when you’re creating your antenna masterpiece, a shorter extension is required. These like all of Chameleon extensions are designed and built using the finest materials with the highest build quantity."

— Jay H. (5/5)

"Excellent quality and workmanship! Prompt shipping!"

— Thomas (5/5)

Love them they fit in

"Love them they fit in my small bag"

— wayne m. (5/5)

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