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I connected it to a USB cable and turned it on, nothing. Pulled the USB and there it came up. Plugged the USB in again, and was able to get it to connect to Nanovna sharp (v1.20). Running it in auto

I hooked mine (White Gecko) to a tunable filter (63 to 125MHz) and I was impressed with what I saw S21 and S11 looked lit was when I swepted it at work. I was recently?? laid off (retired?) and want

It will detune hi freq stuff. Having worked in RF from the KHz to GHz, I know it effects sensitive circuits plus it picks up all kinds of crap. Better off cleaning it off with alcohol then blowing it

Tried the gecko version with various different USB cables that do work with phones and other electronics and do NOT see the board either under Linux or Windows. I might try with an ICSP header. So

Yeah, thinking about it, you don't want any type of organic material around high freq circuits. (I remember in Jr High, we used weak muriatic acid as a flux when soldering sheet metal.....really low

If the flux is water soluble it definitely must be cleaned off or it will corrode the board. I worked for a company that partially built their boards to be finished later and they used water soluble

Thanks Bart. I figured the battery was wedged in there - probably why the SD card slot wasn't installed.

I have worked in this industry for long enough to know it does make a difference. The flux attracts moisture and can change parameters. I always use IPA (not the beer) to clean the board off. Be

That is the one I have, and it seem to work OK

See attached screen shot. I purchased my white gecko from 2012moon816. It included the battery.

A quick comment on the flux residue - it doesn't have to be cleaned if it's the water-soluble type. It looks bad but it's harmless. Brass shim should work for the shields, but make sure it's not too

Larry, Sadly no HT's here but I am guessing some brass shim etc or tin plate screens would help. Still not convinced about the top end freq wise though with SA602. The unit wasn't that expensive so

I've already started hacking my unit so I can push F/W, add a battery, etc. I've attached several photos. If you're into Amateur Radio, you can probably obtain some old scrap Motorola HT1250

Larry, I can understand the airline battery conflicts definitely as I fly with Radios from time to time. If it were just the battery that were missing maybe but that is not all that doesn't work and

Dom, There are VERY strict guidelines as to what types of equipment can include Lithium batteries if being shipped by air. Many Asian vendors have been burned by having their shipments returned due to

Dom, Can you be more specific? What's missing from the Gecko version and how is it a "very bad clone"? What are the hardware and/or software differences? It would be great if someone could create

No battery and lots of 'other bits' seem missing.

Have you included or documented all the additional changes anywhere? Is the source code available for the additions? 72 Dom M1KTA

I found that the white version with a gecko on it was a very bad clone. I would agree. As I have one and there is lots missing :-) 72 DomM1KTA