Found an old notepad of Smith immitance charts, here's a high res scan!3mo ⋅ sjgallagher2 ⋅ r/rfelectronics
I built a modular vector network analyzer by myself for a work experiment. All boards were designed and hand-soldered by me.2yr ⋅ vaughn22 ⋅ r/rfelectronics
Learning microwave, I finally understood enough to make my frist Ku band transmission1yr ⋅ polprog ⋅ r/rfelectronics
Can anyone tell me what antenna array this is and what it would be used for?1yr ⋅ elireloaded ⋅ r/rfelectronics
Bought a server rack for my equipment :) sorry for the spam but wanted to share the upgrade 🙈1yr ⋅ Affectionate-Ask-360 ⋅ r/rfelectronics
Were transmitting on all frequencies -Hollywood Radio Operators in Every Movie2wk ⋅ tatchlistle ⋅ r/rfelectronics
Just bought an Anritsu MS25601 (100 Hz!!! To 2.2 GHz) Spectrum Analyzer for 450€ and got the HP 8640B for free. I just can’t express my gratitude enough to the 75 year old radio amateur 😭1yr ⋅ Affectionate-Ask-360 ⋅ r/rfelectronics
I’ve got an entire box of these rotary attenuators that my boss gave me as part of a DAS decommissioning. I’ve got 0 use for these and they’re worth too much to throw away. Is there a platform aside from eBay where I could sell these?1yr ⋅ Glueberry_Ryder ⋅ r/rfelectronics
“We’re transmitting on all frequencies” -Hollywood Radio Operators in Every Movie2yr ⋅ CircuitCardAssembly ⋅ r/rfelectronics
Finally got around to soldering up version 2 of a quad channel SDR I am working on.6mo ⋅ psyon ⋅ r/rfelectronics
I always wanted one of these as a kid to pick up mysterious TV signals in the microwave bands. Was there actually anything up there?1yr ⋅ madengr ⋅ r/rfelectronics
How does this 5,8 Ghz patch antenna work? What does the middle layer accomplish?1yr ⋅ kamilice ⋅ r/rfelectronics
Just received the NanoVNA v2 in the mail! It was useful for tuning a 2.4GHz ISM-band cantenna4yr ⋅ garrettj403 ⋅ r/rfelectronics
I've never seen an antenna like this, any idea what it is used for?1yr ⋅ hopkinsdamechanic ⋅ r/rfelectronics
Why does the spectrum analyzer have a square wave by 102.25 MHz, I see the often in FM broadcasting.11mo ⋅ Thiccboi2 ⋅ r/rfelectronics
What kind of antenna is this? I never saw 4 loading coils on a monopole.1yr ⋅ muchlikeanyelse ⋅ r/rfelectronics
Hey guys, I’m trying to solve the first problem but I stucked at finding the second stub’s location.2yr ⋅ observerrr ⋅ r/rfelectronics
In the TV Show, Wandavision, Episode 4. The device used on the right is a $200 RF signal strength analyzer.2yr ⋅ XiDa1125 ⋅ r/rfelectronics
Hello everyone. I am designing X band (8-12 GHz) power divider with 3 sections. I am getting good response throughout band, but only thing I loose return loss on upper band (12GHz). Could anyone guide me in approaching broadband. The substrate used is RO4003C, 8mil substrate thickness. Thank you i1yr ⋅ SingamVamshi ⋅ r/rfelectronics
Saw this on the side of my local library, assume it’s for WiFi?2yr ⋅ waterstreetsucks ⋅ r/rfelectronics
Anyone have any idea what this thing did or used to do? ( Arlington VA area)5d ⋅ BridgeHot2524 ⋅ r/rfelectronics
Does openEMS allow for 3D time-domain visualizations of field propagation within microstrip?2yr ⋅ PlowDaddyMilk ⋅ r/rfelectronics
Can anyone explain how this mini-circuits power splitter/combiner works?3yr ⋅ Banoono ⋅ r/rfelectronics
Does this GPS circuit look sensible? First time working with RF, trying to follow datasheets.2yr ⋅ General-Study ⋅ r/rfelectronics
Do people still want old O-Scopes? I have a Tektronix 2467B 400MHz o scope made in the late 80’s and I’m Not sure what to do with it.3yr ⋅ noggin4u ⋅ r/rfelectronics
Anyone know what this is? Kinda looks might have had an array of elements on the front flat side maybe.2yr ⋅ PastSpud ⋅ r/rfelectronics
Does anyone know the name of this impedance matching transformer configuration?7mo ⋅ transistor555 ⋅ r/rfelectronics
When you’re trying to mesh anything with complicated/irregular geometry in openEMS2yr ⋅ PlowDaddyMilk ⋅ r/rfelectronics
This is the footprint for a WiFi PCB antenna. Why is there an open circuit between the left part and the GND?1yr ⋅ 60hzcherryMXram ⋅ r/rfelectronics
Why is this cap there? It connects ground with itself. It's a digital antena1yr ⋅ aigars2 ⋅ r/rfelectronics
I need help, understanding this circuit for the Si4063 chip. I am by far not a RF expert. I want to use that chip for communication with a model airplane, I'm building. But I first need to understand what this is doing and what exact components I should use. Thx in advance1yr ⋅ Pitiful-Metal122 ⋅ r/rfelectronics
Can anyone tell me what antenna array this is and what it would be used for?5d ⋅ craniacskad ⋅ r/rfelectronics
Hi, I have just picked up an Agilent W1314A-E04. Does anyone know if there is software available for it? Also, does anyone know what language/protocol is used to talk to the device via the USB UART port? Any advice or suggestions would be great..11mo ⋅ _m0xya_ ⋅ r/rfelectronics
[Help] PCB antenna. 1 & 2 are solder pads for selecting PCB or external antenna. 3 is the UFL connector. What do you think about my design?1yr ⋅ chucrutcito ⋅ r/rfelectronics
What are the available types of antennas suited for 1.7GHz? Weather satellite reception.1yr ⋅ IamTheYasser ⋅ r/rfelectronics
What NOT to do? Getting my first spectrum analyzer today. HP 8591E3yr ⋅ Biz-Developer ⋅ r/rfelectronics
Ordered 4 samples of a RF SPDT, this is how they came. If you can find them, the ICs are 4x4mm for scale.1yr ⋅ AnotherSami ⋅ r/rfelectronics
ChatGPT created 2nd order filter (twitter thread source in comments)3mo ⋅ 150c_vapour ⋅ r/rfelectronics
Does anyone know this exact goop that keysight uses to lock the threads on this?1yr ⋅ brodump12 ⋅ r/rfelectronics
Should I have any health concerns about living right next to this phone/internet property?1yr ⋅ IntentionalMustard ⋅ r/rfelectronics
disused well pipe good for FM transmission. 80w discrete tx, 90s design.2yr ⋅ youpricklycactus ⋅ r/rfelectronics
AN/FPS-108 COBRA DANE phased array radar with its 15,300 transmit receive modules5yr ⋅ wonder-maker ⋅ r/rfelectronics
Anybody knows what software used to draw this schematic?. It is publication quality sch that is usually in RF related research2yr ⋅ External_Yesterday45 ⋅ r/rfelectronics
What area of mathematics do I need to study to understand this and OFDM and MIMO?3yr ⋅ kaosskp3 ⋅ r/rfelectronics
Is it possible to make an antenna/receiver out of this old clothes line that will probably be replaced soon? Any cool projects suggestions?3yr ⋅ pot8toes ⋅ r/rfelectronics
Table of manufacturers and what type of coaxial connector they make [OC]3yr ⋅ 1Davide ⋅ r/rfelectronics
Difference between a coiled wire as antenna vs a straight. Why is the antenna coiled? Save space or does the coil enhance reception due to EM reasons? In other words..rather coil your DIY antenna if its just made of 1 wire and dont unwrap it from products?2yr ⋅ Sizzlik ⋅ r/rfelectronics
Is it normal for HFSS to show no progress after an hour?, how should i fix it?9mo ⋅ Kenny1234567890 ⋅ r/rfelectronics
I've made first S11 measurement on my DIY TEM cell. Do you think that it is good enough for EMC precompliance measurements?4yr ⋅ 0mica0 ⋅ r/rfelectronics
Which of these 2 circuits is correct? I want to measure how much power an MLCC capacitor can handle at 60MHz.7mo ⋅ samdowrick ⋅ r/rfelectronics
What is small patch between radiating patch & impedance transformer?2yr ⋅ carrombolt ⋅ r/rfelectronics
Has anyone seen this RF adapter before? I have only the one and can't find it anywhere! QB-SMP FEMALE TO SMA FEMALE3yr ⋅ one_effin_nice_kitty ⋅ r/rfelectronics
Will the bias up procedure be met by the network they designed here?2yr ⋅ [deleted] ⋅ r/rfelectronics
Is there an SMA splitter that allows for adding a component in series (like picture)?2yr ⋅ EngScientist ⋅ r/rfelectronics
Trying to replicate this RF controller in breadboard. I'm using the same chip HT12E and same codification. I'm using this transmitter marked in red. (The transmitter in controller is built-in with inductors). it's 433mhz circuit. However it's not working, any clue?3yr ⋅ macusking ⋅ r/rfelectronics
Need Help Identifying Connector Source - O.D. ~6.2mm & fits SMA male connector.1yr ⋅ Engine_C ⋅ r/rfelectronics
Where to solder a straight wire? Where to cut? Converting a meandering inverted F to a straight wire antenna1yr ⋅ CurioussssCat ⋅ r/rfelectronics
Is this resistor limiting the output power? It's connected to the wire labeled ANT3yr ⋅ Noah18923 ⋅ r/rfelectronics
