Is this an inner/outer dc block? in other words, does it block dc through the center conductor and the through the outer shield?

There is no way for it to block power through the outer shield as there is no insulator on the exterior metal. Power is only blocked through the center connection.

Does this go in between the lna and the sdr or betwen the lna and the antenna ?

Hi, it depends on what you are using it for! If you contact us at support.nooelec.com with details we'll be happy to help, thanks :)

Is this what you use between noaa and goes lnas and the sdrs nooelec makes? is it enough to use the power plugs for the lna's?

Its to protect your SDR from the power an LNA uses that might feed back through the antenna connection. For that it's worked great for me.

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NooElec SMA DC Block in-Line 50 Ohm 50kHz-8GHz Connector Blocks DC Voltage from Your Radio or RF Test Equipment. Ultra-Low Insertion Loss (<0.3dB to 6GHz) and 2 Watts Maximum Power

Product ID: 164295574

Details

Brand
NooElec
Color
Silver
Compatible Devices
Radio (RF) and
Connector Type
Radio
Item dimensions L x W x H
0.39 x 0.39 x

⚡Blocks up to 50V DC voltage

📶50kHz-8GHz ultra-wide freq range

🔇<0.3dB insertion loss to 6GHz

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Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Elevate your RF game with precision blocking power!

SEAMLESS SIGNAL INTEGRITY - Ultra-low insertion loss (<0.3dB) ensures crystal-clear RF performance up to 6GHz.
COMPACT LIGHTWEIGHT DESIGN - At just 5 grams and under an inch, it fits seamlessly into any professional RF environment without bulk.
POWER PROTECTION PERFECTED - Blocks DC voltage up to 50V while handling RF power up to 2W—safeguard your sensitive gear effortlessly.
BROAD FREQUENCY COMPATIBILITY - Operates flawlessly from 50kHz to 8GHz, covering all your RF testing and radio needs.
PRECISION LASER ETCHED MARKINGS - Durable, fade-proof labeling guarantees lifetime readability—no more guesswork in your setup.

The NooElec SMA DC Block is a compact, high-performance inline connector designed to block DC voltage up to 50V while maintaining ultra-low insertion loss (<0.3dB) up to 6GHz and supporting frequencies up to 8GHz. Its laser-etched markings ensure durability, making it an essential tool for professionals seeking reliable RF signal integrity and protection in testing and radio equipment.

Specifications

ASIN	B07YYLHJKS
Best Sellers Rank	#1,145 in Computer External Components
Brand	NooElec
Color	Silver
Compatible Devices	Radio Frequency (RF) equipment and test equipment with SMA connectors requiring DC voltage blocking
Connector Type	Radio Frequency
Current Rating	50 Amps
Customer Reviews	4.7 4.7 out of 5 stars (218)
Finish	Laser-etched
Input Voltage	50 Volts
Item Dimensions	0.39 x 0.39 x 0.79 inches
Item Weight	5 Grams
Manufacturer	Nooelec Inc.
Mfr Part Number	100816
Model Number	Nooelec 8GHz SMA DC Block
Nominal Power	2 Watts
Number of Items	1
Number of Ports	1
Package Quantity	1
Power Plug Type	No Plug
Smart Home Compatibility	Not Smart Home Compatible
UPC	616469146625
Warranty Description	2 Year Warranty
Warranty Type	Limited

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