Hello everyone, I'm new to the group and would like your help if possible. I recently bought a B200 to record the baseband of the weather satellites and then decode with Satdump.

Is there a simple program for win10 / 11 that limits itself only to recording the baseband and outputs a wav file 8?

I have read that HDSDR can be a solution, has anyone tried it?

thank you

On Tue, Mar 22, 2022 at 08:37 PM, n6vl wrote:

Tom says to use SUPER brand only. Is SUPER a brand? Or can any GTX 1650 work?

It's just misleading branding by Nvidia. 1650 and 1650 Super are really two quite different cards. 1650 released first (to a fairly lacklustre response from reviewers) then next generation GPU and faster memory in the 1650 Super was highly praised for value versus excellent performance. They really should not have called it 1650 Super, they should have called it a totally different name as they really are different beasts! From memory the Super has about a 30% upgrade on performance in most situations. The tables are easy enough to find online by Googling if you feel the need. 

I bought mine (Super) for around 160 GBP, so about $200 but since then (a) there's been a massive supply shortage due to pandemic chip supply and so they were simply unavailable and (b) as a result prices have gone through the roof, so while they were fantastic value, now (like everything else) they are silly money.

I guess look out for a good used 1650 Super (or see Simon's post) from a reputable private buyer? I can highly recommend the Super. It transformed the performance of SDRC (and loads of other apps, video editing for example) on my ageing 12 year old i7 Asus mobo PC. Your mileage may vary of course, but most have found it an excellent card. Pity about how the pricing has spoiled things to some degree.

Good luck

Max

[Edited Message Follows]

This is a follow up to my previous "Minimizing CPU load" topic. In retrospect it's not the CPU load that's my issue, but SDR-C's effect on other logging applications. My CPU load is around 8% +/-. My machine is a Dell Optiplex 9020. It has a i7-4770 quad core 3.40 GHz w/ 16 GB RAM. I could upgrade to 32 GB.

However it's the display that could be lacking. It has an NVIDIA GeForce GTX 645. I'm not privy to graphics card performance. I could try to get a more up to date NVIDIA card. SDR Console can off load some of it processing to GPU memory. My card has 1 GB RAM. I don't need 4K graphics, so legacy 1920 x 1080 at 60 Hz is just fine for me. My middle aged eyes are quite happy with my current resolution.

I don't see any performance benefit by enabling NVIDIA CUDA. How do I know if it's increasing performance? Any diagnostics?

de Steve N6VL

My Optiplex is a mini tower which is the largest size. I found this available locally:

MSI NVIDIA GeForce GTX 1650 Ventus XS Overclocked Dual-Fan 4GB GDDR6 PCIe Graphics Card

The overclocked part scares me. Overheating comes to mind. It has 4 GB RAM versus 8 GB on other cards. But the price is right at $260. And my power supply barely matches the requirements. If I do need a heftier power supply, it should be one with  ether than average EMI characteristics.

It's looking like SDR-C needs at least at lower end gaming machine!

de Steve N6VL

Replying to Tom: wow the GTX 1650 SUPER is quite expensive! About $400 USD or more on Amazon. I didn't pay that much for this refurb Dell Optiplex about 4 years ago!

Hoping there are some more economical GTX models that will still help out on my primary CPU load? Guess I need to search this group?

de Steve N6VL

Steve,

You could search through previous correspondence on this subject as it has been covered many times by many people and the answer has always been upgrade! Your eyes may not notice the difference but your CPU certainly will. I have a GTX 1650 SUPER. Simon has often recommended this model – the SUPER is important, can’t remember why(!) Easily drives both my mismatched monitors, neither of which are 4K. My CPU performance dropped from 4-6% to >1% which is typical of the results reported by others with the same or better card.  There are plenty of more modern cards to choose from but you don’t have to spend a fortune. It is worth remembering that even if the card is a 4K, you won’t see it unless your monitor is also 4K. if you need to replace your monitor in the future, you might not be able to buy a non-4K monitor.

HTH

Tom G6PZZ, (with eyes older than yours!)

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of n6vl via groups.io
Sent: 22 March 2022 16:16
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] GPU card

 

[Edited Message Follows]

This is a follow up to my previous "Minimizing CPU load" topic. In retrospect it's not the CPU load that's my issue, but SDR-C's effect on other logging applications. My CPU load is around 8% +/-. My machine is a Dell Optiplex 9020. It has a i7-4770 quad core 3.40 GHz w/ 16 GB RAM. I could upgrade to 32 GB.

However it's the display that could be lacking. It has an NVIDIA GeForce GTX 645. I'm not privy to graphics card performance. I could try to get a more up to date NVIDIA card. SDR Console can off load some of it processing to GPU memory. My card has 1 GB RAM. I don't need 4K graphics, so legacy 1920 x 1080 at 60 Hz is just fine for me. My middle aged eyes are quite happy with my current resolution.

I don't see any performance benefit by enabling NVIDIA CUDA. How do I know if it's increasing performance? Any diagnostics?

de Steve N6VL

Any consensus about GTX 1650 brands. Tom says to use SUPER brand only. Is SUPER a brand? Or can any GTX 1650 work?

Any consensus about GTX 1650 brands. Tom says to use SUPER brand only. Is SUPER a brand? Or can any GTX 1650 work?

Replying to Tom: wow the GTX 1650 SUPER is quite expensive! About $400 USD or more on Amazon. I didn't pay that much for this refurb Dell Optiplex about 4 years ago!

Hoping there are some more economical GTX models that will still help out on my primary CPU load? Guess I need to search this group?

de Steve N6VL