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Does it require a ground plane? I would put an SMA connector centered on a plate of PC clad card. Then feed the cable thru back to the VNA. ________________________________ Sent: Thursday, July 11,

Decided to test this SRH805S wide band antenna. They claim it covers 144/430/1200 MHz. While the nano doesn't cover 1200 MHz, it does handle the lower two bands. Clearly there is a problem as 144 MHz

"Have searched the net, but did not find a copy of the QEX 2017/05. Do you know any source for this reference?" Try searching for, or emailing, the author. Often they will provide a copy to you as a

This 500 Hz bandwidth filter is problematic. Upon further measurements with another instrument there are issues. I will find another baseline network and report findings

QEX is a magazine published by the ARRL for communications experimenters. The articles and papers in it are much more technically-oriented than most of what is in the QST ARRL magazine. One must be an

In crystal factories crystals are measured in a 50Ohm system with a pi-network on both sides as per enclosed picture. Don't know if the resistance values are readable in the compressed picture so here

Have searched the net, but did not find a copy of the QEX 2017/05. Do you know any source for this reference?

I can pull mine apart and see if I can come up with something. I agree, the "external" parts need dome protection

Some people don't have the "ability" to modify that box. This way, if you just wanted to add a (or bigger) battery, it is only 4 screws and double sided tape (which I could probably throw

There is some value added packaging if it can be done at a reasonable cost. The slide switch and the rotary wheel switch are subject to failure or breakage. Especially when used in the field. The LCD

I think it depends on the battery. I'm looking for "surplus" batteries to keep the cost down. I had mine open, and never looked to see the mAh rating on the battery. I figure under 1000mAh should be

Folks, Instead of reinventing the wheel to design a case, have a look at the 1553BBK series Hammond housing. It's approx $12 CAD. It looks like a small amount of internal trimming might be needed but

I am still interested, depending on price. Norman Eric Haskell, KC4YOE 3709 Oakbriar Lane Colleyville, TX 76034 USA ________________________________ Sent: Thursday, July 11, 2019 7:25 AM To:

If anyone is interested, I'll find a battery and make up a package with screws and figure out a price. I can make the backs in black or white (or other colors) Frank

In this video, Alan also correctly designates the IF BW as Resolution BW in his notes.

Spectrum (and Network) analyzers have multiple up/down conversions in their RF chain before reaching the last IF section. The IF BW of those middle converters (before the last IF) is fairly wide

Another video nice video explaining RBW is this one https://youtu.be/Ffhs9Ny03lM

Resolution bandwidth. This video [1:50/5:14] uses an example of a 300 Hz RBW to resolved equal amplitude signals separated by 1 kHz: https://www.youtube.com/watch?v=nht9nGEzoQM Nope. Traditional

Nice job!

The IF BW is " intermediate frequency bandwidth" What does RBW stand for and is it the same as IF BW ? Thanks in advance Greg