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TinySA as bandscope
The sweep time on lowest RBW for a span of 200kHz used to be 2 seconds. A bit slow for usage as a bandscope for 20m and 40m bands.
Using an experimental frequency setting schema I was able to reduce scan time to 0.5 seconds. Here are the bandscope pictures using this fast scanning (the indicated scan time is still the old scan time) There is still a small bug in the fast scanning causing the frequencies to be off by one RBW as you can see in the digital band under marker 1. The markers are tracking markers marking the 4 strongest signals and updated every scan of 0.5 seconds. 40 meters, directly connected to half size G5RV antenna 20 meters (using a 25dB amplifier, not really needed) |
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Re: TinySA introduction video
No to add fuel to the fire but I will quote from your initial email below. You are the one that spoke, in no uncertain terms, about hams in general, not I, and everyone can see that. I did not do so. You can stand by your statements, which in my opinion sounded to me to be self serving.? I did not admonish you, that was not my intention but tried to point out that there are certainly hams that are as smart as you or I, and know their way around RF.? I am sorry that you mis-interpreted my response. Based upon my experience, of the hams that I know they have a thirst for knowledge about many things. I would think that is a good thing. So what if they?want to buy a product that they may know nothing about.? With the fraternity decreasing in numbers we need all the support that we can get. Don't you remember when you knew absolutely nothing about spectrum analyzers, or were you born with the ingrained knowledge? I'll bet?certainly?not, you had to learn all of?the?details one way or another. I am sure that sometime in your life you asked what others thought were "stupid questions". I certainly have So I would not have made a general statement as you did below. Perhaps you should have phrased it differently. "as the second something new comes out, the pig herd (hams) will run out and want one and they can't even spell spectrum or analyzer. In the USA we have a comment regarding them, "more money than brains"? In any case they will deplete units on the shelf, then bombard? the group with stupid questions. The downside to your journey to fame and fortune." So let's just "bury the hatchet" and part friends. I am sorry if my direct response?offended you. I consider the subject moot. Sam Reaves
ARS W3OHM
Owner and Moderator of: LeCroy Owners Group on 开云体育 (Current and Future Group)
Electronics and Mechanical Hardware Design Engineering Manager Andritz Rolls Global Research Center (RETIRED) On Sat, Jun 27, 2020 at 11:44 AM Lawrence Macionski via <am_fm_radio=[email protected]> wrote: Sam- I am not going to boast regarding my career, or being licensed 54 years. You jumped to conclusions that frankly you have no idea who I am. Not that I care either, What are you- the Goodie 2 shoes ham radio police? . |
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Re: Screen size
#specifications
开云体育You could always make it an option, just for us geeks. It's all about experimentation..
On 6/26/2020 10:35 PM, Jim Allyn - N7JA
wrote:
On Fri, Jun 26, 2020 at 08:32 AM, Erik Kaashoek wrote: Some of the more geeky types here - looking at myself - would be interested in that.? I remember doing the signal identification stuff on an HP141T. |
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Re: TinySA introduction video
Sam- I am not going to boast regarding my career, or being licensed 54 years. You jumped to conclusions that frankly you have no idea who I am. Not that I care either, What are you- the Goodie 2 shoes ham radio police? .
I was specifically speaking of those irregardless of education or status in life- the ones who buy as soon as they find out there is a "new toy on the block" irregardless of need or want or ability to use.? Look at the NanoVNA forums as an example.. "I just bought a NanoVNA and how do you....." -THOSE PEOPLE. and they were there from the very beginning. That's all I know about them. ? All I was hinting at for the 1st production run, he consider some sort of "reservation" or Sales limit per customer.. After all I just might order 100. then resale them at 100% markup. He obviously is self funding his project and 1st production run will not be over 100. Once it's announced available, there will be a stampede ? Yet we all know, when the NanoVNA 1st came out there were shortages. You stating, "you to make such a careless general statement is harmful to the fraternity." is EXACTLY what YOU have specifically done to me.? Tell me just how is it harmful and whom have I harmed?? I'll wait... You know nothing of me, yet your pompous? self righteous attitude proves otherwise. What gives you the right to admonish me in "public"? I live in REALVILLE... I am not about to shut up and not speak out regarding some of the tactics and stupidity both on and off the ham bands.? I stand by my comments. So congratulations you surely put me in my place!!? NOT!! Next time I'm visiting my Wife and Son's grave in Inwood, I'll look you up....I usually stay in Winchester. |
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Re: Screen size
#specifications
I own both the 2.8 inch and 4 inch versions of the NanoVNA H and I can tell you I like the 4" much better. From R&L Electronics the 4 inch is only $10.00 more than the 2.8inch (about the cost of two cups of?coffee?from Starbucks). Well worth the extra. If Eric could work out something with Hugen and his source for the enclosure used for the NanoVNA H4 the pair of them would be a great combination. This is coming from someone who has repaired or used RF test gear professionally for over 40 years. Best regards, ? Sam Reaves
ARS W3OHM
Owner and Moderator of: LeCroy Owners Group on 开云体育 (Current and Future Group)
Electronics and Mechanical Hardware Design Engineering Manager Andritz Rolls Global Research Center (RETIRED) On Sat, Jun 27, 2020 at 6:11 AM Dom Baines M1KTA via <dombaines=[email protected]> wrote: Nice product. |
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Re: Screen size
#specifications
On Fri, Jun 26, 2020 at 08:32 AM, Erik Kaashoek wrote:
when you remove the input low pass filter you can do all kind of tricks like harmonic mixing. I have the SW to show it is working? (till above 3GHz) but the "signal identification" (just like on the old HP SA) is difficult to explain and I am not sure people will like it. So I do not expect this will ever be a product.Some of the more geeky types here - looking at myself - would be interested in that.? I remember doing the signal identification stuff on an HP141T. |
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Re: Screen size
#specifications
David,
The tinySA also has an impressive RF signal generator mode with frequency and level sweep capabilities. AM and FM modulation capabilities are also present. The font size used in the RF generator mode is larger than the NanoVNA-F (I own one). I guarantee you this little puppy will not seat away in a box if you later purchase a 4" version, because then you will want to use the smaller version almost primarily for tracking or CW generator purposes. - Herb ======================================= Thanks, Herb. If the coverage doesn't pass 960 MHz then it's not really of interest. I already have the RF Explorer mentioned by Erik and a Rigol DSA 815, and I was looking for coverage at higher frequencies. The ADALM PLUTO and associated software looks possible at up to 6 GHz. 73, David GM8ARV -- SatSignal Software - Quality software for you Web: Email: david-taylor@... Twitter: @gm8arv |
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Re: Screen size
#specifications
From: Erik Kaashoek
Hi David, Good catch, will add screen size to the wiki: All outer dimensions, screen size (2.8") and hard plastic enclosure will be identical to the nanoVNA-H We are well aware of the demand a for 4" screen. ================================================== Thanks, Erik. Based on past experience I'll be waiting for the more usable 4" version, as the original NanoVNA I purchased has simple sat in the box once the metal 4.3" version was available. Thanks for pointing to the Wiki. I hadn't actually found that and I'm now confused over the frequency coverage. The Wiki lists two inputs 0.1-350 MHz and 240-960 MHz, and yet one of the posts I happened to find showed screen-shots around the 2.4 GHz region and talked of a 330 MHz (?) first IF. I was really hoping of a unit covering the 2.5 GHz region (for QO-100). 73, David GM8ARV -- SatSignal Software - Quality software for you Web: Email: david-taylor@... Twitter: @gm8arv |
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Screen size
#specifications
I've just joined the group but despite searching the messages I don't see a screen-size specification. I do hope that a 4/4.3-inch screen will be available, as that would be the minimum I would purchase. Ideally, of course, sold as a boxed unit with battery, or one which only requires a couple of screws for assembly so that it is classified as a kit.
Thanks, David |
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Re: TinySA introduction video
Larry, I agree with some of your comments. But I can tell you for portable use the 4" is much better. Also I take some offense to the comments on hams. I have been licensed since the 1970's and spent all of my career in electrical engineering designing all types of electronic devices and T&M equipment. I can assure you that I know what a spectrum analyzer is and does, just as sure as there are many hams that know the same as they started their engineering careers due to their interest in ham radio. I personally know dozens of hams that are excellent RF engineers and know their way around an RF lab so for you to make such a careless general statement is harmful to the fraternity. Sure there are "lids" that are hams just as there are in general society. So instead of lambasting them, how about taking on the task of educating them so they will understand how to use their TinySA? If Erik is able to keep up with the demand perhaps the volume of sales that you predict will allow him to further improvements and/or new future products. In the end we will all benefit. Sincerely, ? Sam Reaves
ARS W3OHM
Owner and Moderator of: LeCroy Owners Group on 开云体育 (Current and Future Group)
Electronics and Mechanical Hardware Design Engineering Manager Andritz Rolls Global Research Center (RETIRED) On Fri, Jun 26, 2020 at 10:01 AM Lawrence Macionski via <am_fm_radio=[email protected]> wrote: Erik- |
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Re: TinySA introduction video
Erik-
Kudos. I also am anticipating rollout as a spectrum analyzer is exactly what I need. I've tried RTL-SDR dongles and it doesn't give you a "big picture". Especially when we are going after interference that we find "walking up and down" the band. Same with CABLE leakage. and here in the US, that's a problem. I also think you're conservative approach to the 2.8" vs 4" version is appropriate. I did buy a 2.8 NanoVNA then "had to have" a 4. I have used my 2.8" 10 times that of the 4".?? Because on the bench the 2.8" is attached 100% of the time now to a PC..? Being able to capture, view, store and print graphs plus using my mouse that I'm accustomed to after 20+ years of steering one. I'm happy.?? Both the 2.8 and 4.0 are hard to read in direct sunlight. cardboard boxes help. Who does not have a computer, tablet or smart phone for a bigger display these days? Finally, although selfish, I would hope and I'm sure all on here would agree, that you allow your groups.io followers 1st crack at the release production run, as the second something new comes out, the pig herd (hams) will run out and want one and they can't even spell spectrum or analyzer. In the USA we have a comment regarding them, "more money than brains"? In any case they will deplete units on the shelf, then bombard? the group with stupid questions. The downside to your journey to fame and fortune. Larry W8LM ARRL Life Member - Licensed 54 years.? |
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Re: TinySA introduction video
Any idea when these will be available? a 4" screen like Hugen's NanoVNA H4 would be a huge seller having owned both the original and now the 4" version, the 4" one wins hands down! Best regards, Sam Reaves
ARS W3OHM
Owner and Moderator of: LeCroy Owners Group on 开云体育 (Current and Future Group)
Electronics and Mechanical Hardware Design Engineering Manager Andritz Rolls Global Research Center (RETIRED) On Thu, Jun 25, 2020 at 11:01 AM Erik Kaashoek <erik@...> wrote: Hi John |
Sam Reaves
Don Clark
Larry Macionski
Jim Allyn - N7JA
David J Taylor