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CHA TACYAGI-70

Sale price $155.00

75 in stock

Documented use beyond the product page

CHA TACYAGI-70 — Field Evidence

Two mission-relevant accounts show how the foldable directional antenna has been used for cadet instruction and operational UHF line-of-sight evaluation.

Portable 400–470 MHz three-element Yagi

A foldable directional UHF antenna for line-of-sight, direction-finding, tactical, public-service, and training work.

Built for a real operating goal

Put a directional 400-470 MHz antenna in the operator’s hand or field kit

CHA TACYAGI-70 is a compact three-element UHF Yagi that unfolds quickly for direction finding, line-of-sight links, training, public-service work, and tactical field communications.

Use vertical polarization for typical FM work or rotate it horizontally for SSB, CW, and applicable digital modes. Its factory-set match and foldable structure keep setup fast while the directional pattern helps the operator find a signal, reject an unwanted direction, or extend a clear UHF path.

  • Frequency400–470 MHz
  • Gain7 dBi
  • Front-to-back ratioGreater than 15 dB
  • Power100 W

Picture the setup before you buy

See how this antenna works in the field

This official installation reference makes the antenna’s footprint, component order, and deployment style easier to understand at a glance.

CHA TACYAGI-70 installed on a carbon-fiber tripod for portable directional UHF operation
A documented portable tripod installation showing the TACYAGI-70 ready for directional UHF work.

Complete product reference

Key specifications

Frequency
400–470 MHz
Gain
7 dBi
Front-to-back ratio
Greater than 15 dB
Power
100 W
Typical SWR
Less than 2.5:1 across 400–470 MHz
Weight
13.7 oz

Know the complete setup before you transmit

Included equipment and documented configurations

Included

  • Three-element foldable Yagi assembly
  • Factory-set gamma match
  • Guide-listed handheld and transport hardware

Documented configurations

  • Vertical polarization for FM
  • Horizontal polarization for SSB, CW, and applicable digital modes
  • Handheld, camera-tripod, trekking-pole, or documented MPAS-mount deployment

Configuration boundary: This is UHF, not VHF. Do not field-tune the gamma match. Use the Pistol Grip for camera-thread mounting; boom threads are not a substitute. Account for UHF feed-line loss.

Coverage & Pattern

See the reviewed 2D and interactive 3D patterns

Use only a model that matches this exact antenna configuration, band, height, ground, feed, and RF return. The normalized simulations do not establish installed SWR, efficiency, realized gain, range, tuning, loss, or field performance.

View Coverage & Patterns
Check compatibility

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.

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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: 4.9166665 / 5 from 24 reviews.

AI Generated Review Summary

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Review highlights

Reviews

Transformer-like Emcom Antenna - GREAT!

"Well Done. This is a rapid pack, unpack, deploy, repack and move out antenna for public service events. I do not have to deal with a wrong wrench, losing bolts, nuts, awkward wrench manipulation while in a hurry to set up sometimes in the cold and dark. Transformer-like Emcom Antenna: Great Idea, Great Implementation."

— TIM D. (5/5)

Perfect for Public Service rapid deployment

"THIS ANTENNA IS PERFECT FOR MY RAPID DEPLOYMENT PUBLIC SERVICE. I do public service events (runs, bike rides, auto Raleys, etc. ). I have dreamed of a “transformer-like” antenna for these events (2m, 1. 75m, 70cm). It has hinges to fold up rapidly, slide into a PVC tube, throw the tube in the back of my Subaru SUV along with other gear, and move to the next position. This antenna rapidly unfolds and rapidly connects to the mast with no small nuts that fall into the grass and require specific sized wrenches to manipulate in tight spaces, and no thin beam elements that bend with a casual bump in the back of a sport utility vehicle. The thumb rotator to connect the antenna to a mast is one of the best features; no lost nuts wrong wrenches, or tight spaces to deal with. The mast is a Harbor Freight Flag pole mast, 17 feet, that is quickly zip tied to a fence post and strong enough to hold a sturdy 3 element 2m beam in 25mph winds with no guy wires. Chameleon, WELL DONE! If Chameleon makes a 1. 75m and 2m version of this antenna, I will be in line to buy three on day one."

— Tim D. (5/5)

WOW! This antenna is amazing!

"This antenna has worked fantastic for me! Due to the terrific gain, I am able to work from indoors, where before to receive and transmit I had to be outside. It is compact, I purchased a carry bag from Amazon for the antenna and my transceiver this has enabled me with unsurpassed portability! As always the build quality with Chameleon is superior to other brands I have owned. Thank you for your attention to the little things, which are the difference between a good product and a great product!"

— Shawn F. (5/5)

Great Little Antenna

"This is just what I was looking for. I am going to use it for satellite work. Get the wire with bnc connector. Out of the box I hit my local repeater. There should be an instruction sheet included, but you can find it online. I am old school. The arms are spring loaded and easy to open and close when you do it a couple of times. This is super compact, lightweight and small enough to transport open or closed."

— Christopher P. (5/5)

"Built well. Hoping they bring a 2m or dual band antenna to msrket soon."

— Terrence (5/5)

Better than expected

"This is the best antenna based on features and price. When it arrived in a small cardboard box, I was in disbelief in how compact it could pack away. You can also tell the workmanship quality is top notch and that they paid attention to detail from how the pigtail coax is attached and everything. The flexibility with the use of the hand grip or tripod or anything with the correct size screw head is very convenient. Use it in the hand or on a tripod mount! No regrets."

— Darik B. (5/5)

Good quality product

"Well made as is everything by Chameleon"

— Christopher R. (5/5)

Awesome handheld, looking forward to

"Awesome handheld, looking forward to the VHF version for satellite contacts. . . 73!"

— Charles K. (5/5)

Very well-built tactical antenna

"Wonderfully built antenna! Shipping was cheap and quick as well."

— Andrew B. (5/5)

Great antenna, performer, problem solver

"This is a quality, well made, super potable antenna with fantastic performance and nice features. Small, light, east to deploy. Pistol grip is fantastic. And it is a problem solver. We’re sunk in a valley and I’m using this little guy to get over a 1630’ summit 2 miles away so I can hit the repeater another 5 miles away on the other side! All with a 10 watt HT. Love it."

— andrew g. (5/5)

Q&A

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