Description: 9.20.23 update C25 UHF Short Stubby Portable Radio Antenna Custom Fine-Tuned into 13 different variations that have specific frequency ranges that you must choose from in the UHF 406-512 MHz radio band. If you are seriously looking for more performance with a very low profile in the UHF radio bands, you are in the right place with our unique C25 UHF antenna. Each of our antennas deliver absolute maximum communications performance with real certified results over a specific and guaranteed frequency range. Our antennas consistently outperform known-brand OEM antennas and all other mass produced portable antennas from other sellers. This listing is for one antenna that was purchased new directly from a known-brand with recognized excellent quality and durable construction. We then alter the antenna with our custom fine-tuning using lab grade test equipment to obtain a higher performance level across a specific frequency range. Our antenna is first class as the original known-brand antenna with an added outstanding high performance level and is made in the USA! Your antenna will have a final VSWR of 1.5:1 or less across your frequency range choice for true high performance with FM narrowband analog or digital communications range. If you need a UHF frequency range that is different from what is listed please let us know. The C25 antenna height will vary be between 2 and 2-5/8 inches tall depending upon the chosen frequency range. The lower frequency ranges will have the longest antenna lengths. The wider frequency bandwidth C25+ antennas will be approximately 1/2 inch longer. If you need a wider frequency bandwidth antenna please see our other antenna listings. KNOWN FACTS: a BIG or BIGGER antenna is usually not any better, Just really BIG !!! The portable radios and remote speaker mic shown in the photos are shown for reference only and are not included. This antenna is compatible with the following radio models; BC130, BPR40, CP100, CP125, CP150, CP185, CP200, CP200D, CP200XLS, CP50, CT150, CT250, CT450, CT450LS, EX500, EX600, EX600XLS, EXPO, GP68, GP300, GP350, HT10, HT50, HT90, HT440, HT600, HT750, HT1250, HT1250LS, HT1550, HT1550LS, MT1000, MX300, P10, P50, P100, P110, P200, P1225, PR400, PR860, PRO1150, PRO2150, PRO3150, PRO5150, PRO7150, PRO9150, SABER, SP10, SP11, SP21, SP50, SP50+, SPORT, and the TS11. It will also work great on top of any Public Safety Speaker Microphone (PSM or PSSM) that requires a UHF antenna with a 1/4-32 threaded stud RF connection to be used on the microphone housing. Ordering Instructions: Please choose the frequency range that you need from the following list of 14 different UHF antennas available; Frequency Range Typical Usage B 420 – 439 MHz . . . Amateur radio 70cm (lower part). Also some Police, Fire, Rescue, and Municipal radio systems on or near the Canadian border. 2-5/8 inches tall. C 430 – 450 MHz . . . Amateur radio 70cm (some of the lower part 430 - 440 MHz and all of the upper part 440 - 450 MHz). 2-1/2 inches tall. D 440 – 450 MHz . . . Amateur radio 70cm, optimized for peak 440 - 450 MHz use only (upper part of 70cm band). 2-1/4 inches tall. E 440 – 460 MHz . . . Amateur radio 70cm (upper part 440-450), Broadcast Radio & TV, Commercial, LMR, Police, Fire, Rescue, Municipal. 2-1/4 inches tall. E+ 440 – 475 MHz . . . wider bandwidth than the E antenna. 2-3/4 inches tall. F 450 – 472 MHz . . . Auto Racing, Motor Sports, Broadcast Radio & TV, Police, Investigation, Tactical, Security, Fire, Command, Rescue, Municipal, Schools, Commercial, Manufacturing, Industrial, Itinerant, GMRS (general mobile service), FRS (family radio service), LMR (general land mobile radio), UHF T band 470-472, and Transportation. 2-1/8 inches tall. F+ 450 – 485 MHz . . . wider bandwidth than the F antenna. 2-5/8 inches tall. G 460 – 482 MHz . . . This frequency range is the most common and most used part of the UHF band. UHF T-Band, Police, Investigation, Tactical, Security, Fire, Command, Rescue, Municipal, Schools, GMRS (general mobile service), FRS (family radio service), Building management, Property management, Life Safety management, Building engineering, Commercial, Retail business, Manufacturing, Industrial, Itinerant, LMR (general land mobile radio), Transportation, UHF T band 470-482, and SMR trunked networks. The majority of MotoTrbo digital systems using the XPR model portable radios also operate in this frequency range. 2 inches tall. G+ 460 – 495 MHz . . . wider bandwidth than the G antenna. 2-1/2 inches tall. GMRS 462 – 468 MHz . . . For absolute Maximum Performance specifically in the GMRS (general mobile service), and FRS (family radio service) radio bands. 2 inches tall. H 470 – 495 MHz . . . UHF T-Band (lower part), Police, Tactical, Fire, Command, Rescue, Municipal, Commercial, SMR trunked networks, Industrial, Transportation. 2 inches tall. H+ 470 – 512 MHz . . . wider bandwidth than the H antenna. 2-1/2 inches tall. I 482 – 512 Mhz . . . UHF T-Band (upper part), Police, Tactical, Fire, Command, Rescue, Municipal, Commercial, SMR trunked networks, Industrial, Transportation. 2 inches tall. IMPORTANT: Please do not make any purchase until you know for sure what UHF frequency range is needed for your radio operations. If you require assistance in determining your frequency range needed please email us with as many details as possible before you make your purchase. No laws of physics are being broken with our short stubby antenna. They are just enhanced to their maximum limits with the proper lab grade test equipment, our craftsmanship, and our RF experience to create a very high performance antenna that solves a real need for our customers. A tuned resonant antenna will always outperform any same size or larger non-resonant untuned antenna from any OEM or aftermarket source. We have duplicated the fact that most unknown poor quality, aftermarket, non-resonant, or untuned antennas will actually absorb or reflect most of the RF power just like a dummy load, while drawing excessive current from the portable radio battery. Our tuned antennas allow the portable radio transmitter to draw less current during transmit with the same or a higher RF output level with an added bonus of longer portable radio battery run time capacity. Proper tuning of an antenna takes time and most companies do not have the time to do things right with the associated labor cost since their goal is only pure profit and not quality. Our company fills a definite need in the marketplace for customers that demand a great quality portable antenna with the highest performance possible at a fair price. Others have tried to imitate our work by testing portable antennas using a radio chassis, RF adapters, coax cable jumpers, an inline watt meter, and other simple amateur radio grade meters. The addition of the inline RF test equipment will not allow an accurate representation of the true antenna tuning and performance. Their results were always disappointing as they have shared with their word as fact on many blog sites. A true antenna test requires a much higher grade of calibrated test equipment, experience, and a valid test setup just like we use on each of our antennas. This antenna meets all of the following criteria; Made from a known-brand antenna and not a cheap junk look-a-like clone copy from China.Be as short as physically possible for a low profile with great communications range.Must be professional looking on the portable radio or if used on a public safety service microphone.Uses a threaded RF connection to properly fit the portable.Exhibit an excellent resonance with a very low VSWR of 1.5:1 or less over the whole frequency range as advertised.Must maintain all specifications over the temperature range of -20 to +120 degrees Fahrenheit. Additional Information The following cities in the US are known to be using the UHF T-band frequency ranges as listed in addition to the 450 to 470 MHz band: Boston, MA 470-479 MHz and 482-488 MHz, Chicago, IL 470-482 MHz, Dallas, TX 482-488 MHz, Houston, TX 488-494 MHz, Los Angeles, CA 470-488 MHz and 506-512 MHz, Miami, FL 470-476 MHz, New York, NY 470-488 MHz, Philadelphia, PA 500-512 MHz, Pittsburgh, PA 470-476 MHz and 494-500 MHz, San Francisco, CA 482-494 MHz, Washington, DC 488-512 MHz. The cities of Buffalo, Cleveland, Detroit and other cities near the Canadian border are also using the UHF 421-439 MHz band for public safety. If you need to know what frequencies your specific agency is using please email us. Our tuned antennas will also reduce the current draw on the portable radio battery during transmit which allows for a much longer battery run time without having to change batteries. The outside antenna covering is made of black flexible PVC with a bottom weather skirt to protect the RF connection on the radio housing. The bottom of the each antenna has a two color coded stripe system to identify the tuned frequency range as shown in our photos. We use silver solder on all reworked internal antenna connections. The retuning of the antenna achieves a minimum signal gain of up to +3dB as compared to any untuned antenna which will effectively double your transmit and receive signal power due to the very low VSWR. Our retuning also allows for a much smaller antenna height without any loss of performance by eliminating all of the unused space inside the antenna. The tuned antenna will only operate properly in the advertised frequency range. Please see the certified performance graph image of this custom tuned high performance antenna. Our high performance antennas have greatly improved communications for Business, Commercial, Fire, GMRS, Government, Industrial, NASCAR racing, Public safety, Police, Ski patrol, and Rescue radio users. We have witnessed portable radios worth many thousands of dollars using cheap unknown quality untuned OEM antennas get beat out in performance by users with radios one forth the cost using our fine-tuned antennas. It is a fact that the most important part of any radio communications is the antenna system. The antenna is the device on a radio that converts RF power into radio waves during transmit and radio waves back into usable signals on receive. All transmitted and received signals must pass through the antenna system for any radio to work. A respected radio engineer once said, “If you had 100 dollars, invest 99 dollars in the antenna system and 1 dollar in the radio and you will always have great communications”. After many years of our own experience we have found that this statement to be true especially for today’s FM narrowband radio communications. VSWR is the efficiency measurement ratio of RF power that is being converted into radio waves by the antenna system as compared to the RF power that is not converted and reflected back into the radio as wasted energy. A VSWR of 1.5:1 has been and still is the customary maximum upper limit used in professional land mobile radio communications to determine a good transfer of RF power. Any VSWR above 1.6:1 is poor and any VSWR above 2:1 is definitely bad for performance and the long term health of the radio RF power output amplifier. Sadly many companies that manufacture products in China now use a VSWR of 2:1 as their good reference point to market their poor quality products and make them appear to be way better than what they actually are. We do not recommend using a standard remote speaker mic (RSM) with our custom tuned stubby antenna since the speaker mic coiled cord next to the antenna will physically block most of the antenna performance. Antennas used on the portable radio need clear space in all horizontal directions to work best. For best performance do not place rings of keys on or near the antenna. Also do not place any extra RSM coiled cord over the antenna which may look good but will choke the life out of your communications range. If you absolutely must use a RSM with your radio the best choice would be to use our custom tuned high performance whip antenna that is tuned to work with the obstruction caused by the RSM coiled cord. The second best choice would be to tie wrap the coiled mic cord to go in an immediate downward direction away from the antenna close to where it exits the radio accessory connector to avoid blocking the antenna signal. We can supply special instructions and a tywrap upon request. Please see our other antenna listings for our high performance whip antennas. We do not recommend transmitting with portable radios in the hand if the radio user has wet hair or is wearing metal frame eye glasses to maintain proper portable radio operation and stay within safe RF exposure limits. We have built thousands of custom tuned antennas for our customers with excellent results and zero defects. Our company has over 30+ years of experience in creating high performance and cost effective antenna solutions. Why continue to operate with an unknown portable radio antenna when you can STEP UP to the TRUE level of portable antenna performance! Unleash the full potential of your portable radio now with our Tuned High Performance antenna! For a very high Performance & Quality antenna just use the “Buy It Now” feature! TERMS and CONDITIONS: We will not be held liable for performance problems or damage caused by any antenna being used outside of the tuned frequency range or due to the wrong antenna frequency range chosen by the buyer.It is the buyer’s responsibility to verify what specific UHF frequencies or UHF frequency range is needed. A UHF antenna will definitely not work at all in the 700/800 MHz radio band.FYI: Just because the antenna purchased fits on the portable radio and looks great does not guarantee communications performance. You must verify the tuned frequency range of the antenna purchased matches the actual frequency range used in your portable radio.Items will be shipped to the confirmed USA PayPal address only. Any buyer abuse, fraud, tampering, or illegal activity will not be tolerated and eBay will be notified of the situation.The TERMS and CONDITIONS as listed will not be modified in any way after the item is purchased. Please be aware if these terms and conditions are not met, eBay will be notified of Non-Performing Bidder, appropriate bidder feedback will be given, and the item will then be relisted for sale again. All photos, images, and text used in the auction are all the IP (intellectual property) of rcbi. SHIPPING: Please note that ALL USPS mailings can possibly be delayed due to Covid-19. USPS mail delivery is most definitely not the same as it was before the pandemic started. Per USPS their staffing is greatly reduced in many areas across the country due to the pandemic which is causing some long unpredictable delays. Most packages have arrived in a timely manner to our customers; HOWEVER, some 1st class packages can take 2-3 weeks to be delivered. Priority mail does tend to get to you faster; HOWEVER, it too can take an extra few days to receive your package than is expected. If your package is not delivered in a timely manner per USPS we have to wait until after the expected delivery date of your package to 1st complete an online Help Request form before we can start a Missing Mail Search Request. If after 7 business days from when we submit the Help Request Form your package still has not arrived, we can then submit the Missing Mail Search Request. You need to be patient with your package delivery time frame. We have done our job when we ship out your order now it is up to USPS to do their job in a timely manner to deliver your package. With USPS First Class mail, be aware that shipping times can vary greatly with this economy shipping service on a good day and especially during national emergencies, severe weather or Holiday periods. If you need a faster delivery date please choose USPS Priority or USPS Express mail. We have 3 shipping options listed on all of our eBay listings; however, for some reason eBay does not always display the options. We were told it is a glitch in eBay’s system. They are working on it.With USPS Priority mail and USPS Express mail, your order will ship out the same day only if your order is received prior to 2:00 PM Central time zone. Purchases that require customization or special tuning may require up to 24 hours of additional time to prepare prior to the expedited shipping.We offer combined shipment discounts to save you money for all purchase made at the same time. Purchase as many items as you want at the same time and we will combine them in one cost effective shipment for you. Don’t worry if an immediate PayPal payment is required; we will issue you a refund via PayPal for any excess shipping costs you may have incurred after we combine all of your items into one shipment. Shipping insurance and tracking is always included in the shipping cost. No local pickup is offered. RETURN POLICY: Within 60 days of the auction close if; you are not satisfied with the item, you changed your mind, have buyer’s remorse, or made a mistake, you may return the item in the same condition as when it was purchased for a refund.A restocking fee of 20% will be applied for all refunds. We will refund the full item price paid less the original shipping costs, and the restocking fee. Any missing items will be deducted from the refund at the current manufacture suggested retail prices.Within 90 days of the auction close if you feel that your item is defective, you may return the item under our warranty conditions as listed.Buyer is responsible for the total cost to ship the item back to rcbi with shipment tracking. All returned auction items must include all of the accessories, must be in all of the original packaging, and in the same condition as when it was sold. If you are returning your item because we made a mistake on your order, we will refund your return shipping costs.Any returned items that are used, warranty seals opened, or in an unsellable condition will not be accepted for a refund or replacement. WARRANTY: 90 day limited warranty by rcbi against any defects in materials or workmanship. Buyer is responsible for all return shipping costs to us. We will refund the buyer for reasonable return shipment costs if the item is confirmed to be defective.Warranty does not cover item damage caused by accident, other defective components, abuse, add-on accessories, neglect, modifications, alteration, misuse, performance problems caused by any antenna being used outside of their tuned frequency range or due to the wrong antenna frequency range chosen by buyers, repair, improper adjustments, tampering, shipping back to rcbi, or acts of god. Also any malfunctions or damage caused by failing to follow directions will not be covered.Warranty is for the original purchaser only and cannot be reassigned. The warranty date starts on the auction close date and any repaired or replacement items issued under warranty will be covered only for the original warranty period.The returned item will be inspected and retested for all specifications. If the item is found to be defective in materials and/or workmanship, we will repair or replace the item at our discretion. The item will be returned to you at no cost.Any returned item found not to be defective and in good condition, will be shipped back to the buyer after we receive a payment from the buyer for all return shipment costs. Our return shipping will include shipping insurance and tracking.Any abuse, fraud, or tampering will not be tolerated and void the warranty period. eBay will be notified of the situation. Please check out our other eBay Listings and our eBay Store for more Great Deals!
Price: 27.49 USD
Location: Oak Lawn, Illinois
End Time: 2024-02-17T21:03:09.000Z
Shipping Cost: 4.26 USD
Product Images
Item Specifics
Restocking Fee: 20%
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 60 Days
Refund will be given as: Money Back
Compatible Brand: For Motorola
Size: 2.0 to 3.0 inches depending upon frequency range
Color: Black
MPN: C25
Band: UHF
Compatible Product: Portable/Handheld Radio
Directivity: Omni-Directional
Brand: RCBi
Type: Antenna
Model: C25
Features: Precision Tuning
Country/Region of Manufacture: United States
Item Weight: 0.4 ounces
Available Variations
Color: B 420-439 MHz
Price: 27.49 USD
Available Quantity: 15
Quantity Sold: 0
Color: C 430-450 MHz
Price: 27.49 USD
Available Quantity: 19
Quantity Sold: 4
Color: D 440-450 MHz
Price: 27.49 USD
Available Quantity: 17
Quantity Sold: 2
Color: E 440-460 MHz
Price: 27.49 USD
Available Quantity: 16
Quantity Sold: 1
Color: F 450-472 MHz
Price: 27.49 USD
Available Quantity: 21
Quantity Sold: 6
Color: G 460-482 MHz
Price: 27.49 USD
Available Quantity: 16
Quantity Sold: 1
Color: GMRS 462-468 MHz
Price: 27.49 USD
Available Quantity: 24
Quantity Sold: 9
Color: H 470-495 MHz
Price: 27.49 USD
Available Quantity: 15
Quantity Sold: 0
Color: I 482-512 MHz
Price: 27.49 USD
Available Quantity: 15
Quantity Sold: 0
Color: E+ 440-475 MHz
Price: 29.99 USD
Available Quantity: 17
Quantity Sold: 2
Color: F+ 450-485 MHz
Price: 29.99 USD
Available Quantity: 18
Quantity Sold: 3
Color: G+ 460-495 MHz
Price: 29.99 USD
Available Quantity: 15
Quantity Sold: 0
Color: H+ 470-512 MHz
Price: 29.99 USD
Available Quantity: 15
Quantity Sold: 0
