"Service Review. Chameleon products are undisputed leaders in fit for purpose and rugged durability. I comment on what in my opinion is uncommon service. On a recent Sunday morning and thinking about my deployment of a new Chameleon antenna component, I was unsure about its best configuration. So I sent a simple email to tech support. Expecting a response sometime during the next week. I was wrong, I received a clear response within two hours - on Sunday morning. You can’t put a dollar value on that. Spectacular!"
— Victor S. (5/5)
"Well constructed, just like all Chameleon products."
— Raymond (5/5)
Table / clamp for mps2
"Will test it this weekend at park event"
— Frank A. (4/5)
Fast setup
"Great asset to my portable set . Very fest to setup"
— Donald C. (5/5)
"Well built. Have not used it yet. It should be very useful to use with the smaller CFM from Chameleon."
— Terrence (5/5)
A POTA gem for sure
"Well designed, solid build quality, looking forward to use it in the field."
— Howard S. (5/5)
High Quality Product
"I wish I had started with an Chameleon antennas when I was first starting out. High quality products leading to success on the air."
— Rex B. (5/5)
Chameleon Universal Clamp
"Received in Australia in 14 days from date of order … excellent service"
— Peter V. (5/5)
Good quality
"Good quality product and very functional"
— Steve G. (5/5)
UNIVERSAL CLAMP MOUNT-GET ONE
"Very cool, useful item. I love it and would highly recommend it with all 5 Stars. Very well made and you don't have to bend over to bury the ground spike, just put it on the picnic table, call CQ and love life. Thank you for the craftsmanship on this . . . Mark-KC1SOW"
— Mark K. (5/5)
Q&A
CHA UCM · UNIVERSAL CLAMP MOUNT
A heavy-duty mechanical clamp and conductive feed-through for documented portable antenna installations.
Turn the structure already at the site into a practical antenna position
Build from a table, rail, balcony, bench, or other suitable edge
CHA UCM gives portable and restricted-property operators a solid antenna base when driving a ground spike is impossible or carrying a separate tripod makes no sense. Clamp it to a suitable structural edge, connect the feed line underneath, and place the documented 3/8-24 antenna or feed assembly above.
The isolated top stud and dedicated side return-path attachment keep the RF connections organized in one compact mount. It is a mechanical clamp and conductive feed-through—not a tuner or transformer—so the selected radiator, matching unit, radial system, and support still come from the complete antenna configuration.
See the clamp in use
A stable edge becomes the starting point
The official guide shows the clamp fully seated on a suitable surface with the antenna assembly installed above it.
Official CHA UCM user-guide installation reference.
Quick product reference
Interfaces and limits
Top interface
Isolated 3/8-24 stud
Feed-line interface
Bottom SO-239 connector
Return-path interface
Side brass screw for documented ring-terminal radials/counterpoise
Clamp body
6061 aluminum channel
Published lip
2-1/2 in
Published surface capacity
Up to 3-1/2 in thick, subject to full safe engagement
Matching function
None
Numeric load rating
Not published in the current source; do not invent one
Complete-system checks
Thread fit is only the beginning
Works with
Only a documented 3/8-24 radiator, feed unit or antenna assembly on a suitable support surface.
Radial/counterpoise
Ring-terminal CHA COUNTERPOISE KIT or COUNTERPOISE EXTRA WIRE may use the side screw when required.
Banana-plug boundary
Banana-plug radial products need a separately documented banana interface; they do not plug directly into the UCM.
Explicit exclusion
Do not mount CHA CFM-34 HD on the UCM.
Before transmitting
Verify full clamp engagement and a stable, structurally sound surface.
Provide coax strain relief and the guying or secondary retention required by the complete antenna.
Confirm the radiator, matching unit, radial/counterpoise, choke and power limits from the completed-system guide.
Stop if the mount shifts, the surface deforms, a connection heats or analyzer behavior changes.
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. Have a question?
We have an awesome customer service team who lives and breathes this stuff:
ANTENNA TECH SUPPORT ONLY:
INQUIRY@CHAMELEONANTENNA.COM
PENDING ORDER INQUIRIES ONLY:
ORDERS@CHAMELEONANTENNA.COM
MILITARY INQUIRIES:
INQUIRY@CHAMELEONANTENNA.COM
775-742-5165
BUSINESS INQUIRIES:
SUPPORT@CHAMELEONANTENNA.COM
Frequently asked
When will my order ship? We ship everything from our Ventura Headquarters within 1-2 business days (except weekends, holidays and when the surf is good).
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
Documented next steps
Complete or expand this setup
See the parts, supports, and expansion paths documented for the product you are viewing.
MORE THAN THE HARDWARE
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Shipping Note:
Due to potential fluctuations in shipping rates, the final shipping cost may differ from the current calculation. If the shipping price changes significantly, we will adjust your order total accordingly and issue a refund for any excess amount charged.
To ensure the fastest and most efficient shipping process possible, we want to clarify our policy regarding order processing:
We will not be combining separate orders.
We will not be adding additional items to previously placed orders.
Coupon must be redeemed at checkout as they won't be added manually by us after completion of the transaction.
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