Description
What the Stryker SR-A10 is
The SR-A10 is a mirror mount whip antenna from Stryker, intended to bolt to the mirror bracket or a similar mounting point on a truck. The product name identifies it as a 10 meter antenna. The description text calls it a CB antenna and states it is built with 6 gauge solid copper wire, silver plated, wound into what Stryker calls an extremely efficient high Q coil.
That is essentially everything the listing communicates about the product, and the rest of the record is unusable. This review covers what the antenna is and what a buyer needs to know about the band it works on, and then it explains what is wrong with the listing, because in this case that is the most useful thing that can be said.
Ten meters and CB are not the same thing
The listing uses both terms and they refer to different services with different legal requirements. This matters more than any specification.
The 10 meter band runs from 28 to 29.7 MHz and is an amateur radio allocation. Transmitting there in the United States requires an amateur radio license issued by the FCC, and the entry level Technician class license carries limited privileges on 10 meters. Receiving requires no license at all.
Citizens Band radio is a separate service on 27 MHz, sometimes called 11 meters. It requires no license, and in exchange it is tightly limited: 40 fixed channels, a maximum of 4 watts on AM and 12 watts on single sideband, and equipment that must be FCC certified for the service.
The two bands sit close enough together that an antenna cut for one will often show a usable match on the other, which is why listings blur them. The legal position does not blur. Operating an amateur band radio on CB frequencies, or running amateur equipment at amateur power levels on CB channels, is not permitted regardless of what the antenna will tune. Anyone buying this should be clear about which service they are licensed and equipped for.
Operators comparing mobile antennas should also read the Comet CA-2X4SRNMO, which is a VHF and UHF mobile whip for the 2 meter and 70 centimeter bands rather than HF.
The coil and construction
The one substantive technical claim is the coil. A 10 meter mobile antenna is always a compromise, because a full quarter wave at 28 MHz is a little over 8 feet, which is impractical on a vehicle. Loading coils let a shorter whip present the right electrical length, and the quality of that coil determines how much power is lost as heat rather than radiated.
Heavy gauge copper is the right material choice for that job. Six gauge is thick wire, and thicker conductors have lower resistance, which is what a high Q coil means: a coil that stores energy rather than dissipating it. Silver plating reduces surface resistance further, which matters at radio frequencies because current flows mostly in the outer skin of a conductor. These are real engineering decisions rather than marketing language.
What is missing is everything that would let a buyer judge the result: the antenna’s physical length, its bandwidth, the SWR curve, the gain, the connector type and the mast or mirror bracket sizes it fits. None of that appears anywhere.
The listing is broken
This record is the most corrupted on the site and the faults should be named rather than repeated.
The feature bullets describe a different product entirely. Paper white backlight for daytime, floating waterproof to IPX8 and JIS8, and a package weight are all attributes of a handheld device, not of a whip antenna. Antennas do not have backlights and do not float.
The power handling figure of 10,000 watts is not credible. Legal amateur power in the United States is capped at 1,500 watts, CB is capped at 4 watts, and a mobile whip on a mirror mount is not a 10 kilowatt component. Treat this number as meaningless.
The attribute table lists the special feature as alcohol free and the display feature as wireless, neither of which describes an antenna. The stated dimensions of 10.8 by 4.5 by 2 inches are the shipping carton, since a 10 meter whip is measured in feet, and the 1.08 pound weight is the packed weight.
The description text itself is truncated mid sentence, ending on a stray digit. The product is real and the brand is established in the CB and 10 meter market, but this particular Amazon record has been assembled from the wrong parts.
Highlights
- Mirror mount design for a truck or a similar vehicle bracket.
- Coil wound from 6 gauge solid copper wire.
- Silver plating to reduce surface resistance at radio frequencies.
- Described by Stryker as a high Q coil, which is the correct priority for a loaded mobile antenna.
- Aimed at the 10 meter band, where Stryker’s own radios operate.
- Ranked 74th in Amazon’s Radio Antennas category.
Things To Consider
- Transmitting on 10 meters in the United States requires an FCC amateur radio license.
- The listing calls the product both a 10 meter antenna and a CB antenna. These are different services with different rules.
- The 10,000 watt power handling figure is not credible and should be disregarded.
- Four of the listing’s feature bullets describe a completely different product.
- No length, gain, bandwidth, SWR figure or connector type is published.
- The published dimensions are the shipping carton, not the antenna.
- Mirror mounts put the antenna low on the vehicle and beside a large metal body, which affects the pattern. Roof mounting generally performs better.
- Any mobile antenna needs tuning to the vehicle it is fitted to, and an SWR meter is part of the job rather than an optional extra.
Who it suits
This is for a licensed operator running a 10 meter radio in a truck who wants a heavy gauge loaded whip on a mirror mount, and who already knows how to check and tune SWR after installation. Stryker is a known name in that market and the coil construction described is the right approach for the job.
It is not for a buyer who wants documented specifications, since this listing provides almost none, and it is not for someone looking for a base station antenna. Those should read the Tram 1481 fiberglass base antenna or the Diamond X30A. Anyone comparing dual band mobile options should look at the Tram 1180, and the wider selection sits in the radio antennas category.
