ARCHER 21-511 Radio Coax Switch Connectors Cb Ham Antenna Cable PL259
( Brand: Archer ), ( Manufacturer Part Number: 21-511 ), ( Compatible Brand: Universal ), ( Type: Coaxial Cable ), ( Country Of Origin: United States )
Review ARCHER Radio Shack Coax Switch Connectors Cb Ham Antenna Cable
The **Archer 21-511 Radio Coax Switch** is a high-performance, dual-channel antenna switching solution designed specifically for amateur radio (ham radio) enthusiasts and communication professionals who require seamless signal routing between multiple antennas and transmitters. Built with robust construction and precision engineering, this switch features two **PL259 (SO-239) male connectors**, ensuring a secure and reliable connection to your CB radio, HF transceiver, or other compatible equipment. The PL259 connectors are widely recognized in the amateur radio community for their durability and compatibility with a vast array of coaxial cables, making them ideal for both fixed and mobile setups, including vehicles, shacks, and field operations. The Archer 21-511 operates on a simple yet effective switching mechanism, allowing you to alternate between two antennas with minimal signal loss or interference, which is crucial for maintaining clear transmissions during contests, emergency communications, or general operation. Whether you're using a dipole, vertical antenna, or beam array, this switch ensures that your signal is routed efficiently to the optimal antenna for the desired frequency band, enhancing your overall performance without compromising signal integrity. Its compact yet sturdy design makes it easy to integrate into existing antenna systems, whether mounted indoors near your operating station or outdoors in a weatherproof enclosure. Built to withstand the demands of regular use, the Archer 21-511 is constructed from high-quality materials that resist corrosion and environmental factors, ensuring long-term reliability even in challenging conditions. Perfect for both beginners and seasoned operators, this switch simplifies antenna management by providing a clean, low-loss solution for switching between transmitters or antennas without the need for complex relays or additional hardware. Whether you're upgrading your station for better versatility or optimizing your setup for multi-band operation, the Archer 21-511 is a dependable choice that delivers professional-grade performance in a straightforward and user-friendly package.
**Pros and Cons of buying a Archer 21-511 Radio Coax Switch with PL-259 Connectors for CB/Ham Antenna Cable**
### **Pros:**1. **Versatility in Antenna Selection** The Archer 21-511 allows you to quickly switch between multiple antennas without physically disconnecting cables. This is particularly useful for CB (Citizen Band) and ham radio operators who may use different antennas for different frequencies, polarizations, or directional setups (e.g., vertical, dipole, or beam antennas).
2. **Reduces Cable Clutter** By consolidating multiple antenna connections into a single switch, it minimizes the number of coax cables running to your radio, improving cable management and reducing the risk of damage or interference from tangled or improperly routed cables.
3. **Convenience for Testing and Tuning** If you frequently adjust or test different antennas, the switch makes it easy to toggle between them without unplugging and replugging connectors, saving time and reducing wear on the PL-259 connectors.
4. **Durable Construction** The Archer 21-511 is designed for rugged use, with sturdy metal or high-quality plastic housing and reliable internal switching mechanisms. This makes it suitable for outdoor or mobile applications where durability is important.
5. **Compatibility with PL-259 Connectors** PL-259 (SO-239) connectors are standard in CB and ham radio setups, so this switch integrates seamlessly with most antennas and coax cables. No additional adapters are typically needed for standard connections.
6. **Low Insertion Loss** A well-designed coax switch like this one minimizes signal loss when switching between antennas, ensuring that your radio receives a strong, clear signal regardless of which antenna is selected.
7. **Weather Resistance (if applicable)** Some models of the Archer 21-511 are rated for outdoor use, with weatherproof or water-resistant features. This is beneficial if the switch is mounted near the antenna or in an exposed location.
8. **Cost-Effective for Multi-Antenna Setups** For operators who would otherwise need multiple coax cables or a more complex relay system, this switch provides a straightforward and affordable solution.
---
### **Cons:**1. **Limited Number of Ports** The Archer 21-511 typically offers a small number of input/output ports (often 2 or 3 inputs and 1 output). If you have more than a few antennas, you may need additional switches or a more complex distribution system.
2. **Potential for Signal Leakage** Poorly designed or low-quality coax switches can introduce signal leakage between ports, which may cause interference or reduce signal purity. While the Archer 21-511 is generally reliable, this is a risk with any switching device.
3. **Physical Space Requirements** The switch occupies space near your antenna or radio, which may not be ideal if you have limited mounting options. Outdoor installations may require additional protection (e.g., a weatherproof enclosure) to prevent damage from moisture or debris.
4. **Manual Operation** Most coax switches, including the Archer 21-511, require manual switching (e.g., rotating a dial or flipping a lever). This means you must physically change the antenna selection, which can be inconvenient if you need to switch frequently or remotely.
5. **Potential for Wear on Connectors** Frequent switching can lead to wear on the PL-259 connectors over time, especially if the connectors are not high-quality or if the switch is not properly secured. This may eventually require replacement of connectors or the switch itself.
6. **Limited Frequency Range (if specified)** Some coax switches have frequency limitations or may not perform optimally across the entire CB or ham radio band (e.g., 10 meters to 80 meters). Ensure the Archer 21-511 supports your operating frequencies before purchasing.
7. **No Remote Control Option** Unlike some higher-end or specialized switches, the Archer 21-511 does not offer remote switching capabilities (e.g., via a relay or motorized mechanism). This can be a drawback if you want to automate antenna selection.
8. **Potential for Signal Reflection** Improperly matched impedance or poor construction in the switch can cause signal reflections, which may degrade performance, especially on higher frequencies or with directional antennas.
---
### **Conclusion:**The Archer 21-511 Radio Coax Switch with PL-259 connectors is a practical and reliable solution for CB and ham radio operators who need to manage multiple antennas efficiently. Its primary strengths lie in its simplicity, durability, and compatibility with standard connectors, making it ideal for users who require a straightforward way to switch between antennas without complex wiring. However, its limitations such as the lack of remote control, limited ports, and potential for signal leakage may make it less suitable for advanced setups or those with many antennas.
For most casual or intermediate CB/ham operators with a small number of antennas, the Archer 21-511 offers a good balance of functionality and affordability. If you have specific needs such as remote switching, a larger number of antennas, or high-frequency applications, you may need to supplement it with additional equipment or opt for a more specialized switch.
---
### **Recommendation:**If you are looking for a simple, no-frills coax switch to manage a few antennas (e.g., a vertical and a dipole for CB or a couple of ham radio antennas), the **Archer 21-511 is a solid choice**. It is well-suited for mobile or fixed installations where ease of use and durability are priorities. Ensure that the switch supports your operating frequencies and that your setup does not require features beyond what it offers (e.g., remote control or a large number of ports).
For users with more complex antenna setups such as multiple beams, remote switching, or high-power applications consider pairing the Archer 21-511 with a relay system or a more advanced switch. Additionally, always inspect the connectors and switch for quality and ensure proper grounding to minimize interference or signal loss.
In summary, the Archer 21-511 is a practical tool for many CB and ham radio operators, but its suitability depends on your specific needs and setup. If your requirements align with its capabilities, it is a worthwhile investment.
Details:
Radio Shack / Archer Coax Switch, Cat no 21-511. Good used condition. PL259 Connectors for CB, Ham Antenna Cables. Includes only what is shown in the pictures.
part #: 21511 prices
- $14.99-$24.99
specifications coaxcabl:
- brand: Archer
- mpn: 21-511
- compatible brand: Universal
- type: Coaxial Cable
- country of origin: United States
seller coaxcabl:
- rating: 100.0%
- # reviews: 2442
- city: New Orleans, Louisiana
offer coaxcabl:
- sold: 0
- options: Ship-to-home
- best offers: True
- started: May 13, 2026
- availability: In Stock
- quantity: 1
general coaxcabl:
- Radio Communication > Parts Accessories > Coax Cables Connectors
- condition: Used
returns coaxcabl:
- method: Money back
- time: 30 Days
- paid by: Buyer
- policy: Returns Accepted
payments coaxcabl:
- other
- credit card: Discover
- wallet: Apple-pay
shipping coaxcabl:
- type: Calculated
- service: USPS Ground Advantage
- class: Standard
- carrier: USPS
- transit: 6-13 Days
- cost: $11.95
Archer 21-511 Is Similar To:
- 15-1174 Radio Shack Archer Ohm Super Low Loss Foam Tv Twin (42.3% similar) 50' Archer 300 ohm super low loss foam TV twin lead 20 GA copper cable nos thanks rich...(November 2nd, 2018)
- 274-234 Radioshack Vtg Archer Radio Shack Cat No Molded Nylon Connector (45.3% similar) For sale is an old new stock Archer radio shack item: cat. See photos 076 L8180714. Terminals accept wire gauges 22 thru package is unopened. Please see the photos. The item is old new stock...(July 14th, 2018)
- 278-133 Radioshack Radio Shack Archer Plug Adapter (38.8% similar) Converts screw-on NC male to push-on pull-off. Useful with transportable cellular telephones. Radio shack Archer push-on NC-type plug adapter...(May 27th, 2018)
- 278-137 Radioshack Radio Shack Archer Tnc Coupler (37.5% similar) Low-loss for superior performance to 1 GHz and beyond. Female NC-male NC-female NC. Radio shack Archer NC couplet...(May 27th, 2018)
- 278-143 Radioshack Radio Shack Archer Tnc Saver (39.7% similar) NC female to male. Radio shack Archer NC extender socket saver. Approximately 3CM length...(April 27th, 2018)
- 278-173 Radioshack Radio Shack Archer Coupler (38.7% similar) Radio shack Archer mini-uhf couplet. This is actually a 1-TO-2 RF splutter...(April 27th, 2018)
- 278-192 Archer Coax Adapter Type (30.6% similar) ...(October 30th, 2017)
- 278-970 Archer Rg Cb Ham Scanner Radio Coax Cable Feet Coaxial (35.5% similar) Archer rag 8 u cb ham scanner radio coax cable 50' feet coaxial 15. 24M you are buying a unopened box of Archer 50' 15. Gets you noticed...(March 6th, 2018)
- 278195 Archer Uhf Type Connectors For Coax Cable (52% similar) ...(July 4th, 2018)
- 278205 Archer Uhf Coax Connectors Type Plug (45.9% similar) ...(July 3rd, 2018)
- 50ft-rg8 Archer Coax Cables (32.1% similar) RG8U cables. Price is for both...(June 10th, 2018)
