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Re: Off Topic - Antenna Design Software

Thank you for the information. I'm looking at the site right now. I know a lot less about baluns and chokes but that is a whole other topic. . . Brian Howell

By Brian Howell · #59977 ·

Re: Off Topic - Antenna Design Software

Yeah, I guess the model could be used a an indicator of the impedance. Thats why I'm really wanting to get a NanoVNA V2 to give me some real life numbers. Brian

By Brian Howell · #59976 ·

Re: Off Topic - Antenna Design Software

Nice! How long did it take to build? Brian Howell From: Chris Smolinski [mailto:csmolinski@...] Sent: Thursday, September 10, 2020,

By Brian Howell · #59975 ·

Re: Off Topic - Antenna Design Software

Heh Heh Heh Probably. . . Brian Howell From: Alan G4ZFQ [mailto:alan4alan@...] Sent: Thursday, September 10, 2020, 9:12 AM

By Brian Howell · #59974 ·

Re: DIY Arduino Midi Controller for SDRC Evolved

May be you have to load also MIDIUSB.h library. What kind of arduino do you use? My sketch is for MICRO, that is USB native. Andrea

By Andrea Dalbagno · #59973 ·

Re: DIY Arduino Midi Controller for SDRC Evolved

Hello Andrea, I have tried some of the examples in the library and I get the same error, I have made a query to the author of the library 73 Miguel

By Miguel de Castro · #59972 ·

Re: DIY Arduino Midi Controller for SDRC Evolved

Hello Miguel I'm thinking about the error message you've got. Let me a little of time :-) 73 Andrea

By Andrea Dalbagno · #59971 ·

Re: DIY Arduino Midi Controller for SDRC Evolved

Hello Andrea, I forgot to tell you that the version of the library is 1.20 73 Miguel

By Miguel de Castro · #59970 ·

Re: Possible bug in 3.0.24 RSP1A

It should be easy enought for anyone with a rspa1a to verify, just set 9 and close, open , does it still show 9 or does it default back to 7. But maby not a bug, it might just be the deafult "safe"

By Mikael Dagman - SA6BSS · #59969 ·

Re: Off Topic - Antenna Design Software

I scaled a really old Telrex 11 element 50 MHz beam to 2 meters making it out of coat hanger wire. I have no idea what it's real performance was. It just worked, TX and RX. It had about

By jdow · #59968 ·

Re: Off Topic - Antenna Design Software

have a look at G4CQM's coaxial dipole, does away with the requirement for balun, maybe just add a Tonna ¼wave half loop on the feeder https://qsl.net/g4cqm/wave_antennas/DIPOLES.html also maybe

By Richard Rimmer · #59967 ·

Re: Off Topic - Antenna Design Software

Those are free space numbers. I don't think modeling will tell you as much about VSWR in any given installation as you would want. It is very sensitive to the surroundings like

By jdow · #59966 ·

Multiple instances / external radio

Hi, is there a way to store the configuration/settings for the external radio (ie."mute on transmit") for each instance? Atm I am running 2 instances, if I change a external radio-setting on one

By Ernst Siderits (OE3IDE) · #59965 ·

Re: Off Topic - Antenna Design Software

Coincidentally I recently built this quick and dirty 8 element Yagi for 434 MHz. I used pieces of 14 gauge wire for the elements, coat hangers would have been better

By Chris Smolinski · #59964 ·

Re: Off Topic - Antenna Design Software

Brian, That's the way! Use straightened coat hangers, I'd bet you would find it very difficult to prove a "proper" antenna was better. 73 Alan G4ZFQ

By Alan G4ZFQ · #59963 ·

Re: Off Topic - Antenna Design Software

You may be right. Since I have never built an antenna like this before I'm also using it as an education tool for myself. I'd like to know enough and learn enough so that if

By Brian Howell · #59962 ·

Re: Off Topic - Antenna Design Software

This thread reminds me of a sticker on the helm of my Tiki Barge (next to the blender on the bar): Since you are NOT transmitting, SWR really doesn't matter all that much. Why not use the tried and

By Kriss Kliegle KA1GJU · #59961 ·

Re: Off Topic - Antenna Design Software

Ahhh okay. Thanks! Yeah, that was what I was talking about. . . I'll have to study up on that. Brian Howell From: Tom Crosbie G6PZZ

By Brian Howell · #59960 ·

Re: Off Topic - Antenna Design Software

Also look up the Gamma Match Brian. It’s how the best match was obtained with the old MET antennas in the 80’s. Mechanically quite easy to do with the driven element connected to the boom

By Tom Crosbie G6PZZ · #59959 ·

Re: Off Topic - Antenna Design Software

Thanks! I will take a look at the group. I'm waiting on the updated version of NanoVNA V2 before I buy one of those, that will help a lot I believe, if I am able to build an

By Brian Howell · #59958 ·

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