When you trun off amp You should remove connectors from lna to antanna and sdr And connect anteena connector directly to the sdr..and now see the result

You can normally power these with a BIAS-T on your SDR along the coax. You also want the LNA to be as close to the antenna as possible.

You should go for some filters immediately after the LNA (which should be first after the antenna since it governs the whole system's noise performance as Friis formulas for noise predicts). I'd opt in for filtering since you're receiver has no preselection at all. All signals, even if outside the theoretical receiving frequency will have negative impact on the receiver performance (signal to interference ratio) by producing intermodulation or saturating your receiver (no matter which frequency you dial in). That is especially true for cellular and WiFi services which are by far generated most near to your receiver and thus the most powerful ones. Filters will help to keep those strong signals away from your receiver so they won't do so much harm (degrade your receiver performance).

careful I found some of those to have fake parts resulting in a higher noise figure in the 2-3 db range. If you buy a pre-amp buy the ones marked 0.6db and are in machined aluminum cases. They are about 2-3 times the cost than those cheap ones but I have not yet found one with a fake or bad chip. Out of 10 bought all had .45-.6db noise at 1 ghz ,whereas of 10 of the cheap ones 4 were good the rest were terrible.

Way chill work - TY for shring. :)

Superglue and bakingsoda mixed will make a good base so it wont bend and break off

The SPF5189Z (A pHEMT MMIC Device) is spec'd at 0.6 db Noise Figure with 15 db Small signal Gain rating......0.6db Rf Signal Gain would be a Useless device.....

How did you turn the amp on and off? Did you remove the amp when you turned it off? With no power on the amp I doubt much signal can pass through the amp.

That's nice! I was looking because I also bought such an amplifier. ATTENTION 5 Volts!!! I think I blew one up! (12Volt, stupid of course!) It was nice to see your video thank you for your information! Healthy and Friendly Greetings from the Netherlands! Rob

Hello and thanks for good videos I have a question iwant to buy lna module there is some types like 20db gain I know If I put 50mv pp in input I will have a 500mv output but ididnt tested it for 400mv input will I have 4v pp at output on 50 ohm load If not why???

Hey! How you managed to modify the gain of the amplifier?

With Enought Effort You Mean 0 Better ANtennas For The 1.8Meter Band / VHF So You Could Get Better Receptionm And Better Images, This Is So Awsome , Thank You For The Video =) Wish I Could Afford Such Things, I Have RTL.SDR , But No Filterrs, I Tried To Made My Own Filters, But They Work Only For 80 To 10 Meters !

So I thought i had a grip on the ins & outs of the workings of these- I have a Open Source SDR amp that came with my HackRF....being cautious as to not blow the HackRF's inners i went to test out the gain....In your vid there's a visible difference...mine? Nothing like that... i swear that it did at a time-- but never measured it like this.... Just saw results like your's receiving all those craft when the amp had been turned on.. I especially wanted to get things right since I was working on a TX 'ing idea where I needed to daisy chain another amp- and unfortunately, only 2nd'ary amp i got is one that came with EMC test probes- i am under the impression the "in" (rx) and "out" (tx) are reversed- againn, my attempts at figuring out have been futile/ i don't want to be setting up a situation where 1 amp is tx'ing and the 2nd amp rx'ing. .... Any suggestions on how to determine this? Tools to use to do so? Power-meter? Oscilloscope? I guess a spectrum analyzer eh? Also, you use the amp for ADSB- well, at least demonstrated its handy work boosting the results of how many craft were around... in that setup which way are you amplifying the signal? Are you flipping it to boost rec'd signals? Or stays same where your are amplifying your TX? Thanks in advance. oh the amp and emc probes are: (actually really nice probes but the amp requires a plug power jack with >12v) www.aliexpress.com/item/1005005923571278.html The original amp that came w/ HRF--50M-6GHz Low Noise : www.aliexpress.com/item/1005002172847806.html

Thanks by subtitles

i want to get one of those LNAs so much.. but my weekly allowance is 2 dollars (100 uah)... and sellers here overprice it to 12 bucks....

No comparison between the amp in and out of the circuit?

Please tell us about the interconnection adaptor types. Maybe antenna side need One is "SMA male to type F Female". Do I need "SMA male to SMA male"?

Do you have videos on how to install these other softwares, like for example the NOAA Sat and ADSB. Basically a video tutorial on how to do this. I am really intrigued about this. I own the RTL-SDR v3 and in another few months im going to get another one. And I have AirSPY SDR and other SDR versions of it. I also just purchased 2 of those amplifiers.

That was fascinating Andrew.

Get it outside as close as possible to the antenna and on a short a cable as possible ... then it is less likely to amplify induced noise as well as signal. Buy an RSP1A from SDR Play. Well worth the money. Much better and lower signal to noise ratio than the others ... 73 DE M0XXX

Sir how much is the power supply

Can i hook one of these up between an RF modulator and an antenna to boot the signal from the modulator, so i can transmit to TV sets in my house?

When you power off lna Signal no pass trught it to sdr directly you should remove lna compeltly from line of sdr...

can i use it for wifi remote drone? so the drone can reach distance more far from remote?

Although its rated for 5 volts a 3.7 lipo battery would be just fine.

for about £10 extra you can get it in its own case and with a usb+ backup battery

What is the software that you have used to get satellite image?

No DC Block between the SDR and LNA?

What ANtennaa You Are Running Ser?

Software please?

I have question RF out should be connected to antenna?

Sorry Oot, i have question can it be LNA for wifi signal booster?

Having the LNA inline turned off is not the same as having the LNA not inline

Can i put it on the wifi cable antina?

08:41 How did you set the LNA gain ?

Would it be possible to boost 4G DL-only with this?

0.6dB gain? That's not a LNA

mono

А по русски видео можно.

I want to use an amplifier for Flight Radar to use on 80 meters of cable. will it work?