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Author Topic: SDR Knobs and Buttons in the future  (Read 90195 times)
N9RO
Member

Posts: 124


WWW

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« Reply #75 on: September 30, 2013, 11:17:47 AM »

If you can accept all the issues with using ICMP (ping) and want to just focus on numbers for comparison here is a comparison of doing a ping on Wi-Fi vs. Hardwire Ethernet:

On uncontended Wi-Fi network
Reply from 192.168.1.1: bytes=32 time=4ms TTL=64
Reply from 192.168.1.1: bytes=32 time=7ms TTL=64
Reply from 192.168.1.1: bytes=32 time=4ms TTL=64
Reply from 192.168.1.1: bytes=32 time=3ms TTL=64
=========== Sniffer Trace Wi-Fi (Leaving Timestamp Only ==============
+---------+---------------+----------+
18:08:08,468,564   ETHER
+---------+---------------+----------+
18:08:09,283,727   ETHER
===============================================================

On switch Ethernet (wired) network
Reply from 10.10.30.105: bytes=32 time<1ms TTL=128
Reply from 10.10.30.105: bytes=32 time<1ms TTL=128
Reply from 10.10.30.105: bytes=32 time<1ms TTL=128
Reply from 10.10.30.105: bytes=32 time<1ms TTL=128
=========== Sniffer Trace Ether (Leaving Timestamp Only ===============
+---------+---------------+----------+
18:12:24,094,109   ETHER
+---------+---------------+----------+
18:12:24,094,151   ETHER
+---------+---------------+----------+
===============================================================

If hams understood 802.11 they would see this would be the very LAST choice to operate a thick client SDR on.  Most network testing and metrics are done using wired networks, Wi-Fi is just too painful and unreliable to make any meaningful decision.  In addition, Wi-Fi was intended for MOBILE use never intended for applications continuously streaming large volumes of IQ data. 

73,
Tim  N9RO
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Real techies don't use knobs.
K5TED
Member

Posts: 703




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« Reply #76 on: September 30, 2013, 05:13:26 PM »

Do hams truly not understand 802.11?

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AB2YC
Member

Posts: 53




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« Reply #77 on: November 30, 2013, 04:35:43 AM »

I recently connected a Hercules DJ Controller to my radio to control it.

Look here for info - http://www.dh1tw.de/powersdr-ui

Now I have Knobs to control my radio
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KF6TIL
Member

Posts: 17




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« Reply #78 on: January 08, 2014, 07:52:37 PM »

I'm new to these forums and still learning about SDR.  Just getting back into ham radio after many years.  As a software developer SDR should be right up my alley!

Pardon my ignorance, but could a Microsoft HID interface such as this: http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=66&products_id=204 be used to build your own VFO dials, etc.?

As one who started with a 40's vintage Hallicrafters receiver back in the 60's, I enjoy the "feel" of a nicely balanced dial to navigate the air waves.  If the above interface will work, it would be pretty simple to build my own control panel.
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KE7TMA
Member

Posts: 467




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« Reply #79 on: January 08, 2014, 08:04:13 PM »

I for one am quite surprised that modern SDRs do not include MIDI, as there are many MIDI hardware control surfaces (knobs, switches, dials, etc) that would adapt really well to amateur radio, and they aren't very expensive either.
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