🎉 Up to 70% Off Selected ItemsShop Sale
HomeStore

SMA Male to N-MALE antenna extension coaxial cable 240/400 grade (choose length 6' 10' 15' 25' 50')

Product image 1
Product image 2
Product image 3
Product image 4

SMA Male to N-MALE antenna extension coaxial cable 240/400 grade (choose length 6' 10' 15' 25' 50')

SMA Male to N-MALE antenna extension coaxial cable 240/400 grade (choose length 6' 10' 15' 25' 50')

 *LMR240 / LMR400 

This special low-loss SMA male to N MALE extension cable is 240 grade (LMR-240* equivalent loss) low loss shielded for 6, 10, and 15 foot length options, and 400 grade for 25 and 50 foot options. 

240 and 400 refer to shielding thickness. The thicker shielding means lower dB loss. 240 grade is .24 inches thick, while .400 is ~.40 inches thick. 400 has less loss. For length up to 15 foot, 240 is more than adequate, but for 25 or 50 foot length, the 400 is recommended.

The cable can be used to put an extension between an SMA antenna connector on a LoRa device or Meshtastic radio and an N-female antenna.

Compare gain loss of this cable at 6ft example length:
915 MHz application: - 0.4 dB (LoRa device)

Compare this to a cheaper RG-58 shielded cable of the same length- the gain loss would be -0.9 dB for 915 MHz. Twice as much loss with inferior cable!

Additional Features:
- Impedance: 50 OHM
- Frequency: all bands from 0-6 GHz, including 868-915 MHz LoRa

RG402

High-quality semi-rigid RG402 coax cable with SMA male to N male connectors. Ideal for RF applications up to 18 GHz where low loss and excellent shielding are essential.

Key Specs:

  • Impedance: 50 ± 2 Ohms

  • Dielectric: Solid PTFE

  • Outer Conductor: Silver-Coated Copper

  • Frequency Range: DC to 18 GHz

  • Shielding: >100 dB

  • Max Voltage: 2000 Vrms

Estimated Signal Loss:

  • 906 MHz: ~0.13 dB (6")

  • 6 GHz: ~0.5 dB (6")

  • 10 GHz: ~0.72 dB (6")

  • 18 GHz: ~1.04 dB (6")


Commonly used for Meshtastic and LoRa devices

This cable is compatible with N-female outdoor antennas like the low profile Rokland 6 and 8 dbi units (not compatible with 6 & 8 dBi MISSION series). 

Choose desired length from menu above Add to Cart button.

As the cable in between the antenna and adapter gets longer, you will experience cable loss, which is a drop in the signal gain of the antenna. With low-quality unshielded extension cables, the huge drop in gain will mean a much lesser range. Our special low loss cable limits the cable loss factor and preserves the high gain of your antenna.

We do recommend RokTape to seal all outdoor connection points. 

Warranty & Support:
Complimentary Telephone and Email/Live Chat Support (Click Here)

Sales tax is required in many states and will be added at checkout if applicable to your delivery state. Tax exempt forms can be sent to our support department.

Return Policy: This item is a final sale item. Final sale items may not be returned except in cases of defect. Expedited shipping charges paid are non-refundable. 

*LMR is a registered trademark of Times Microwave

Select Length
From $3.29

Original: $10.97

-70%
SMA Male to N-MALE antenna extension coaxial cable 240/400 grade (choose length 6' 10' 15' 25' 50')—

$10.97

$3.29

Product Information

Shipping & Returns

Description

 *LMR240 / LMR400 

This special low-loss SMA male to N MALE extension cable is 240 grade (LMR-240* equivalent loss) low loss shielded for 6, 10, and 15 foot length options, and 400 grade for 25 and 50 foot options. 

240 and 400 refer to shielding thickness. The thicker shielding means lower dB loss. 240 grade is .24 inches thick, while .400 is ~.40 inches thick. 400 has less loss. For length up to 15 foot, 240 is more than adequate, but for 25 or 50 foot length, the 400 is recommended.

The cable can be used to put an extension between an SMA antenna connector on a LoRa device or Meshtastic radio and an N-female antenna.

Compare gain loss of this cable at 6ft example length:
915 MHz application: - 0.4 dB (LoRa device)

Compare this to a cheaper RG-58 shielded cable of the same length- the gain loss would be -0.9 dB for 915 MHz. Twice as much loss with inferior cable!

Additional Features:
- Impedance: 50 OHM
- Frequency: all bands from 0-6 GHz, including 868-915 MHz LoRa

RG402

High-quality semi-rigid RG402 coax cable with SMA male to N male connectors. Ideal for RF applications up to 18 GHz where low loss and excellent shielding are essential.

Key Specs:

  • Impedance: 50 ± 2 Ohms

  • Dielectric: Solid PTFE

  • Outer Conductor: Silver-Coated Copper

  • Frequency Range: DC to 18 GHz

  • Shielding: >100 dB

  • Max Voltage: 2000 Vrms

Estimated Signal Loss:

  • 906 MHz: ~0.13 dB (6")

  • 6 GHz: ~0.5 dB (6")

  • 10 GHz: ~0.72 dB (6")

  • 18 GHz: ~1.04 dB (6")


Commonly used for Meshtastic and LoRa devices

This cable is compatible with N-female outdoor antennas like the low profile Rokland 6 and 8 dbi units (not compatible with 6 & 8 dBi MISSION series). 

Choose desired length from menu above Add to Cart button.

As the cable in between the antenna and adapter gets longer, you will experience cable loss, which is a drop in the signal gain of the antenna. With low-quality unshielded extension cables, the huge drop in gain will mean a much lesser range. Our special low loss cable limits the cable loss factor and preserves the high gain of your antenna.

We do recommend RokTape to seal all outdoor connection points. 

Warranty & Support:
Complimentary Telephone and Email/Live Chat Support (Click Here)

Sales tax is required in many states and will be added at checkout if applicable to your delivery state. Tax exempt forms can be sent to our support department.

Return Policy: This item is a final sale item. Final sale items may not be returned except in cases of defect. Expedited shipping charges paid are non-refundable. 

*LMR is a registered trademark of Times Microwave