| Products > Test Equipment |
| nanoVNA vs SVA1015X VNA (Need entry level VNA) |
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| switchabl:
--- Quote from: Marcel G on August 30, 2022, 09:22:37 am ---The first thing I noticed was the slow sweep speed hopefully Siglent improves on this. My 12 year old E5062A is a lot faster. --- End quote --- According to the datasheet it shouldn't be. Are you comparing it at the same settings? I think Shahriar had it at something like 500 Hz IFBW, 500 points. That is going to slow it down a lot. The fact that he was using the remote interface may not help either. EDIT: This is assuming we are talking about the SNA5000A video here and not about the SVA. |
| rplabs:
Hello all, I wanted to share my thoughts here since I am in search for a new VNA also. I own a NanoVNA V2plus4 for a long time and it was OK for my amateur radio stuff I do for up to 4GHz but now I need something in the range of 8-12GHz. Solver32 program also helps a lot to increase the usability of the small NanoVNA. As for used VNAs... I am looking on eBay for more than 2 months and prices are crazy for any VNA. Even if it is 20 years old and shows errors or is not working prices in EU are at least 3K EUR. Same applies for old SNAs on eBay, 2K EUR and they are not tested and are missing the detector heads. Buying the detector heads will bring the price same as a VNA. On the good side I saw on LibreVNA groups.io list they work to combine multiple VNAs to create something like a cluster. Not clear if this can be used to increase the max frequency of 6GHz or it just does different measurements where one unit cannot do it. |
| tomud:
--- Quote from: rplabs on August 30, 2022, 12:52:39 pm ---I need something in the range of 8-12GHz. --- End quote --- upss it will be painful financially... :phew: Apparently, SNA5000 variants will appear at frequencies higher than 8.5GHz - but here the price will probably not be low. The same applies to the prices of calibrators and cables. Unfortunately, these are already large amounts of money to spend :-// Sometimes I build radars on 24GHz myself and a VNA would be useful, but I do not even think about it because it is outside my private budget. However, as for the prices and condition of equipment from ebay etc you are right. (it often looks like equipment found in a dumpster) You can try to buy the HP 8510C + 8516A + 83621A, but it is not the latest equipment and you need a lot of space in the workshop... |
| joeqsmith:
--- Quote from: rplabs on August 30, 2022, 12:52:39 pm ---Hello all, I wanted to share my thoughts here since I am in search for a new VNA also. I own a NanoVNA V2plus4 for a long time and it was OK for my amateur radio stuff I do for up to 4GHz but now I need something in the range of 8-12GHz. Solver32 program also helps a lot to increase the usability of the small NanoVNA. As for used VNAs... I am looking on eBay for more than 2 months and prices are crazy for any VNA. Even if it is 20 years old and shows errors or is not working prices in EU are at least 3K EUR. Same applies for old SNAs on eBay, 2K EUR and they are not tested and are missing the detector heads. Buying the detector heads will bring the price same as a VNA. On the good side I saw on LibreVNA groups.io list they work to combine multiple VNAs to create something like a cluster. Not clear if this can be used to increase the max frequency of 6GHz or it just does different measurements where one unit cannot do it. --- End quote --- They changed the LiteVNA's firmware to use harmonics and cap it at 9.3, at least with the version I currently have installed. I've thought about putting together an up/down converter for it with some software support. I have some support today and demo'ed the NanoVNA I think above 2GHz. Maybe something to consider. |
| jhov:
I'm not sure how it compares to your other options, but a Pluto Plus SDR with albfers SATSAGEN software might be worth looking into. His latest version added VNA capability using an RF bridge. https://www.albfer.com/en/2022/05/29/satsagen-v-0-7-1-4/#content |
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