The NA-24J is a brand new antenna from Nagoya. It is based on the NA-771, but with improvements in build, material, and performance. Most notably the new alloy whip that is vastly improved for flexibility and durability. (Along with an improved base fit). SWR is improved on UHF compared to the original NA-771.
Note: Beware of counterfeit copies, noted by their improper Nagoya design, an alternate 'brand name', and cheap build quality. Improper and cheaply manufactured antennas will cause high SWR and damage your radio.
Every Nagoya Antenna is individually tested and tuned for the supported frequency range it was made for.
This antenna is slightly longer than 16 inches long. The main improvements are to the brass connector (a better conductor), and the new flexible alloy antenna.
Compatible with:
BaoFeng: UV-82, UV-5R (All models), BF-F8HP, BF-F8+, and all other BaoFeng Models; Compatible With all Models of BaoFeng.
BTECH: GMRS-V1 (Nagoya NA-701C recommended antenna), MURS-V1 (Nagoya NA-701C recommended antenna), UV-5X3 (Nagoya NA-320A recommended tri-band antenna).
Kenwood:
TK-240, TK-250, TK-255, TK-260, TK-260G, TK-270, TK-270G, TK-272G, TK-278, TK-278G, TK-340, TK-349, TK-350, TK-353, TK-360, TK-360G and more.
And any other radio that uses the SMA-Female Connection.
Image Chart: How will my Nagoya Antenna Fit?
Nagoya antennas are each individually analyzed to ensure compatibility with your radio.
Nagoya Antennas are dependable, accurate, reliable, and affordable.
Avoid antennas that pretend to be a Nagoya. Antennas that are not individually tested or tuned can cause high SWR, which damages a radio.
Nagoya Antennas are proven to be a reliable and safe antenna manufacturer.
Most Nagoya antennas will increase your radio's transmitting gain compared to their factory antenna.
In most cases: the longer the antenna is the better the antenna is capable of boosting weak frequencies and receiving difficult to hear stations. Shorter antennas offer more portability and convenience, while longer antennas generally perform better.
View the comparison chart below to pick the antenna best fit for your application.
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| NA-771 (Whip), NA-771R (Retractable) | NA-701 (Whip), NA-717 (Ultra-Whip) | NA-24J (Ultra-Whip) | NA-320A (Whip) | NA-701C (Whip) | NA-810 (Stubby) | |
| TX & RX Frequency Range | 136-174MHz, 400-520MHz | 136-174MHz, 400-520MHz | 136-174MHz, 400-520MHz | 136-174MHz, 220-225MHz, 400-520MHz | 136-174MHz, 400-520MHz | 136-174MHz, 400-520MHz |
| Receive Only Frequency Bands | 120 / 150 / 300 / 450 / 900MHz | 120 / 150 / 300 / 450 / 900MHz | 120 / 150 / 300 / 450 / 900MHz | 120 / 150 / 220 / 360 / 420 / 450 / 820 / 900MHz | 120 / 150 / 400 / 800 / 900MHz | 150 / 300 / 450 / 800 / 900MHz |
| Optimal Transmit Frequency Range | 140-150MHz, 420-450MHz | 140-150MHz, 420-450MHz | 140-150MHz, 420-450MHz | 140-150MHz, 220-225MHz, 420-450MHz | 150-165MHz, 450-470MHz | 140-150MHz, 420-450MHz |
| Average Gain to Stock Antenna | 2.5dBi | 2dBi | 2.25dbi | 2.15dBi | 2.15dbi | 0dBi |
| V.S.W.R. | ≤1.5:1 | ≤1.5:1 | ≤1.5:1 | ≤1.5:1 | ≤1.5:1 | ≤1.5:1 |
| Length | 15.6"; NA-771R: 4.25" (Retracted) | 8.25" | 16" | 17.7" | 8" | 2.5" |
| Wave | 1/4λ (144MHz) - 1/2λ (430MHz) | 1/4λ (144MHz) - 1/4λ (430MHz) | 1/4λ (144MHz) - 5/8λ (430MHz) | 1/4λ (144MHz) - 1/2λ (220MHz) - 5/8λ (440MHz) | 1/4λ (155MHz) - 1/4λ (455MHz) | 1/4λ (144MHz) - 1/4λ (430MHz) |
| Maximum Power | 10W | 10W | 10W | 10W | 10W | 6W |
