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Author Topic: SDR on iPads?  (Read 2236 times)

Offline alpard

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SDR on iPads?
« on: August 20, 2020, 1630 UTC »
I am thinking buying a SDR, but wondering, if my iPad could run with a SDR.
It is an old iPad about 10 year old.  But it still works fine on most apps.

Failing that, I have an IMac OSX 10.11.

If none of them works with SDR, does it mean that I must buy a new PC too?
I have an old Android pad too, but that is about the same age as the Macs.
ICOM R71E, Lowe HF-225, YAESU FRG100, TECSUN PL-330, PL-320, XHDATA D-109, D-808, MSi001 SDR, AOR AR3030, Sangean ATS803, ATS-909X, Antenna= Random Wire+ATU, Active Miniwhip

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Offline ChrisSmolinski

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Re: SDR on iPads?
« Reply #1 on: August 20, 2020, 1707 UTC »
iPad? Not directly but you could via a web browser.

Why not get a KiwiSDR? It does everything itself, no special software to run. You put it on your network, then you can use it from your computer, iPad, whatever, in a web browser.
Chris Smolinski
Westminster, MD
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netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline alpard

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Re: SDR on iPads?
« Reply #2 on: August 20, 2020, 2337 UTC »
KiWi SDR sounds great, but now it is hard to find, and the price seems too high.
Are they still in production and being marketed?

What is the data rate?  Recently 16bit SDR RX888 seems storming the SDR market.
ICOM R71E, Lowe HF-225, YAESU FRG100, TECSUN PL-330, PL-320, XHDATA D-109, D-808, MSi001 SDR, AOR AR3030, Sangean ATS803, ATS-909X, Antenna= Random Wire+ATU, Active Miniwhip

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Offline ChrisSmolinski

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Re: SDR on iPads?
« Reply #3 on: August 21, 2020, 0005 UTC »
KiWi SDR sounds great, but now it is hard to find, and the price seems too high.
Are they still in production and being marketed?

Yes, still sold. They're in such high demand, they are hard to find, and production constrained. I understand a new batch is being made now.

It's quite powerful for the price, it has 4 independent receivers (8 if audio only with no waterfalls). I have two amongst my SDRs and use them frequently, in addition to sharing them online for others to use:
http://sdr.hfunderpants.com:8073/
http://sdr.hfunderpants.com:8074/

Quote
What is the data rate?  Recently 16bit SDR RX888 seems storming the SDR market.

That's a brand new radio. Lots of chatter, I have not yet seen many hands on reports of performance. What's the price?
« Last Edit: August 21, 2020, 1203 UTC by ChrisSmolinski »
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline alpard

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Re: SDR on iPads?
« Reply #4 on: August 21, 2020, 0802 UTC »
I think it goes between $130 - $180.  That's quite reasonable I would have thought.
« Last Edit: August 21, 2020, 0911 UTC by alpard »
ICOM R71E, Lowe HF-225, YAESU FRG100, TECSUN PL-330, PL-320, XHDATA D-109, D-808, MSi001 SDR, AOR AR3030, Sangean ATS803, ATS-909X, Antenna= Random Wire+ATU, Active Miniwhip

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Offline RobRich

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Re: SDR on iPads?
« Reply #5 on: August 22, 2020, 2213 UTC »
That's a brand new radio. Lots of chatter, I have not yet seen many hands on reports of performance. What's the price?

The RX-666 and RX-888 are similar. Both are based on the BBRF103 open-source design. The RX-888 adds an integrated LNA and is around $200 from China via eBay or similar.

For HF and below, both appears to use the LTC2208.... or a clone.... or a salvage chip? The LTC2208 is 15 years old at this point, but AFAIK, it still is not a cheap IC to source new. Up to 32MHz sampling, with up to 28.8MHz alias-free sampling. USB 3.0 is required for such high sample rates.

BTW, above HF they use a common R820T2, but apparently with up to 8MHz sampling currently possible.
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