Re: [time-nuts] Net4501's cheap...
Perhaps you have the older boards. google Raspberry Pi Reboots on inserting a USB device by mahjongg » Mon Nov 19, 2012 12:09 am Don't hot plug USB devices directly into the PI, if you must hot plug plug into a hub instead! Its called the rush in current problem, and it makes that the current PI itself is non hot pluggable, note that the revision 1 PI was hot pluggable, as the two polyfuses prevented any rush in current because the fuses had a non zero resistance. But in the current board there is literally zero resistance between the PI's 5V supply, and any USB device you plug in, that means that if you plug in any USB device with empty power decouplers, (which act as a complete short for a very small time) then you are actually simply shorting the 5V when you plug de USB device in. The polyfuses in the revision 1 board however caused much greater problems than this problem, and for that reason have been removed. My Raspberry Pis are all model B with the 512 MB RAM, purchased in Oct 2012, Nov 2012 and April 2013. I have been using devices which conform to the USB spec, not hard disks which may take a higher transient initial current than 500 mA (note that some of these devices are supplied with two USB leads, one of which is power only). Devices such as a Wi-Fi adapter and a DVB receiver. I am also using a good power supply, not a minimally spec'ed unit - it's a 5.25V 2A model as supplied by ModMyPi. Photo of successfully hot-plugged devices: http://www.satsignal.eu/Radio/dump1090.html Performance of three Raspberry Pis as timekeepers with indoor GPS antennas: http://www.satsignal.eu/mrtg/performance_ntp.php Cheers, David -- SatSignal Software - Quality software written to your requirements Web: http://www.satsignal.eu Email: david-tay...@blueyonder.co.uk ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Net4501's cheap...
This may be way off topic, but the inrush current problem is probably with devices not meeting the USB specification. As it turns out, a lot of low end devices do not meet this spec. I spent some time redesigning the power supply system of one such device I was using. This time was covered by the company that built the device, and eventually it went into production. High speed clamp on probe showed 2Amps inrush, where it was supposed to be much smaller than that. That caused all sorts of havoc. It worked fine on a PC USB, where the 5V line is very stiff. USB hubs were a different story. My bet is a workaround would be a stiff cap (ceramic, not 'lytic) at the USB on the Pi board to counteract empty filters on the hot plugged device may help. Maybe a small impedance between the 5V supply of the Pi board and the cap would help. Dan On 5/23/2013 8:37 PM, time-nuts-requ...@febo.com wrote: by mahjongg ? Mon Nov 19, 2012 12:09 am Don't hot plug USB devices directly into the PI, if you must hot plug plug into a hub instead! Its called the rush in current problem, and it makes that the current PI itself is non hot pluggable, note that the revision 1 PI was hot pluggable, as the two polyfuses prevented any rush in current because the fuses had a non zero resistance. But in the current board there is literally zero resistance between the PI's 5V supply, and any USB device you plug in, that means that if you plug in any USB device with empty power decouplers, (which act as a complete short for a very small time) then you are actually simply shorting the 5V when you plug de USB device in. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Net4501's cheap...
Date: Fri, 24 May 2013 06:42:43 +0100 From: David J Taylor david-tay...@blueyonder.co.uk I am also using a good power supply, not a minimally spec'ed unit - it's a 5.25V 2A model as supplied by ModMyPi. Sure. I think my point is that I've seen this problem on both of my units when powered by both a 5V2A wall adapter supply and a 5V.8A supply. Since the problem has been reported by other people it's sufficient for me to look to other solutions that don't have this (admittedly minor) possibly configuration related flaw. Besides I got them to run NTP and they're too jittery for my taste. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
My solution is not to use the R Pi. An extra $20 gets you any number of superior arm SBCs. Go cortex-A7 type cpu. The Beagleboard XM I'm using has a bug in the built-in usb hub (patchable), but it has no issues with hot plugging. The R Pi is designed to be cheap, but you spend a lot of time doing work-arounds, hardware and software. At some point, an extra $20 looks like a bargain. -Original Message- From: Dan Kemppainen d...@irtelemetrics.com Sender: time-nuts-boun...@febo.com Date: Fri, 24 May 2013 09:44:46 To: time-nuts@febo.com Reply-To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: [time-nuts] Net4501's cheap... This may be way off topic, but the inrush current problem is probably with devices not meeting the USB specification. As it turns out, a lot of low end devices do not meet this spec. I spent some time redesigning the power supply system of one such device I was using. This time was covered by the company that built the device, and eventually it went into production. High speed clamp on probe showed 2Amps inrush, where it was supposed to be much smaller than that. That caused all sorts of havoc. It worked fine on a PC USB, where the 5V line is very stiff. USB hubs were a different story. My bet is a workaround would be a stiff cap (ceramic, not 'lytic) at the USB on the Pi board to counteract empty filters on the hot plugged device may help. Maybe a small impedance between the 5V supply of the Pi board and the cap would help. Dan On 5/23/2013 8:37 PM, time-nuts-requ...@febo.com wrote: by mahjongg ? Mon Nov 19, 2012 12:09 am Don't hot plug USB devices directly into the PI, if you must hot plug plug into a hub instead! Its called the rush in current problem, and it makes that the current PI itself is non hot pluggable, note that the revision 1 PI was hot pluggable, as the two polyfuses prevented any rush in current because the fuses had a non zero resistance. But in the current board there is literally zero resistance between the PI's 5V supply, and any USB device you plug in, that means that if you plug in any USB device with empty power decouplers, (which act as a complete short for a very small time) then you are actually simply shorting the 5V when you plug de USB device in. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
-Original Message- From: Paul Sure. I think my point is that I've seen this problem on both of my units when powered by both a 5V2A wall adapter supply and a 5V.8A supply. Since the problem has been reported by other people it's sufficient for me to look to other solutions that don't have this (admittedly minor) possibly configuration related flaw. Besides I got them to run NTP and they're too jittery for my taste. === Paul, Just what devices were you hot-plugging to produce this problem? One with an initial current surge outside the USB spec I could understand. NTP performance on the three Raspberry Pi cards here can be of the same order as FreeBSD running on an Intel Atom PC: http://www.satsignal.eu/mrtg/performance_ntp.php The RPi cards are all using very low cost GPS/PPS receivers with no external antenna, and the FreeBSD box has an external roof-mounted GPS 18 LVC. Cheers, David -- SatSignal Software - Quality software written to your requirements Web: http://www.satsignal.eu Email: david-tay...@blueyonder.co.uk ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
What do you need to know? Most of the details will depend on what software you are running on it. Which operating system. After it boots up you can look in one of the log files. But details vary with the OS. On Wed, May 22, 2013 at 6:31 PM, Jim Sanford wb4...@wb4gcs.org wrote: Do you have any documentation on how to use them? I have one that I bought to be an internet access point with a verizon card, failed due to verizon not complying with the RFCs. Love the device, but no information on ports, etc. Might want to play with it, or could make it available. Thanks 73, Jim wb4...@amsat.org On 5/19/2013 10:45 AM, Jason Rabel wrote: Just a heads up, there are some (8+ @ last count) used Soekris Net4501's for $29 on eBay (Search for: Soekris)... I submitted a bid for $20 each and it was instantly accepted... Don't know how low you can go, from the description the guy wants to get rid of them or they are going in the trash. Seems like a good deal if you are looking to make a little NTP server, especially compared to the retail price for a net4501... ;) I'm not affiliated with the seller in any way, I just love those little net4501's... I already have 5 of them, I don't know why I just bought 5 more... lol... Now I need more GPS modules! __**_ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/** mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. __**_ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/** mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
There is now one left for $129, gee free shipping. Do yourself a favor and get a $35 RaspberryPi and a $12 5-port net switch. Don Jim Sanford Do you have any documentation on how to use them? I have one that I bought to be an internet access point with a verizon card, failed due to verizon not complying with the RFCs. Love the device, but no information on ports, etc. Might want to play with it, or could make it available. Thanks 73, Jim wb4...@amsat.org On 5/19/2013 10:45 AM, Jason Rabel wrote: Just a heads up, there are some (8+ @ last count) used Soekris Net4501's for $29 on eBay (Search for: Soekris)... I submitted a bid for $20 each and it was instantly accepted... Don't know how low you can go, from the description the guy wants to get rid of them or they are going in the trash. Seems like a good deal if you are looking to make a little NTP server, especially compared to the retail price for a net4501... ;) I'm not affiliated with the seller in any way, I just love those little net4501's... I already have 5 of them, I don't know why I just bought 5 more... lol... Now I need more GPS modules! ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind. De Erroribus Medicorum, R. Bacon, 13th century. If you don't know what it is, don't poke it. Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
Le 23 mai 2013 à 03:31, Jim Sanford a écrit : Do you have any documentation on how to use them? I have one that I bought to be an internet access point with a verizon card, failed due to verizon not complying with the RFCs. Love the device, but no information on ports, etc. Might want to play with it, or could make it available. User manuals, firmware etc from the Soekris.com site and there is plenty of OS installation/admin doc visible on the web. They marry with PCI or mini-PCI wifi cards that can be found cheaply. Mine were running FreeBSD but there are other flavors that support it. I say were because their power supplies failed after around 5years 24/24. The 4801s of the same vintage are still going. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Net4501's cheap...
On Thu, May 23, 2013 at 1:06 AM, There is now one left for $129, gee free shipping. Do yourself a favor and get a $35 RaspberryPi and a $12 5-port net switch. Don A variation is still available for sale from Soekris and they're more than $129. However I don't think they're worth buying from Ebay at that price even if it included a nice CF card. A better comparison would be a Pi for $45, 5V power for $20, a case for $20 and a powered USB hub for $25. ~$100 (including shipping) assuming it comes with an SD card. The Raspberry Pi wouldn't need a USB hub if they didn't reboot when you plugged into the USB ports. Speaking as someone who has two RPi's :-( and three Beaglebone Blacks :-) Of course I have a bias toward Ubuntu so the Beaglebones are a better fit for me for other reasons. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
The net4501s went way up in price, but there is a seller offering a lot of five net4521 boards plus five 64MB CF cards for $80 - and he is willing to accept less if you make an offer. Try lot 320744604969. They seem to be the same as a net4501 but with two PCMCIA slots. I was gonna try to run NTPd on it for a work project, though I've also got a few BeagleBone Blacks hanging around. Andy Bardagjy bardagjy.com On Thu, May 23, 2013 at 1:14 AM, mike cook mc235...@gmail.com wrote: Le 23 mai 2013 à 03:31, Jim Sanford a écrit : Do you have any documentation on how to use them? I have one that I bought to be an internet access point with a verizon card, failed due to verizon not complying with the RFCs. Love the device, but no information on ports, etc. Might want to play with it, or could make it available. User manuals, firmware etc from the Soekris.com site and there is plenty of OS installation/admin doc visible on the web. They marry with PCI or mini-PCI wifi cards that can be found cheaply. Mine were running FreeBSD but there are other flavors that support it. I say were because their power supplies failed after around 5years 24/24. The 4801s of the same vintage are still going. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
From: Paul [] The Raspberry Pi wouldn't need a USB hub if they didn't reboot when you plugged into the USB ports. Speaking as someone who has two RPi's :-( and three Beaglebone Blacks :-) == I have three Raspberry Pis and have not seen that behaviour. Cheers, David -- SatSignal Software - Quality software written to your requirements Web: http://www.satsignal.eu Email: david-tay...@blueyonder.co.uk ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
Newegg has a refurb'd netbook for $40 right now and new ones for $100. These are complete systems with LCD display, case and battery power with AC adaptor and still cheaper than a Pi or a Soekris. The reason to buy the pi, Ardurino, Launchpad or whatever is if you intend to hack the hardware. If not then just buy a cheap notebook for $50 or less Here is one example: Item=N82E16834760001http://www.newegg.com/Product/Product.aspx?Item=N82E16834760001 On Thu, May 23, 2013 at 7:51 AM, Paul tic-...@bodosom.net wrote: On Thu, May 23, 2013 at 1:06 AM, There is now one left for $129, gee free shipping. Do yourself a favor and get a $35 RaspberryPi and a $12 5-port net switch. Don A variation is still available for sale from Soekris and they're more than $129. However I don't think they're worth buying from Ebay at that price even if it included a nice CF card. A better comparison would be a Pi for $45, 5V power for $20, a case for $20 and a powered USB hub for $25. ~$100 (including shipping) assuming it comes with an SD card. The Raspberry Pi wouldn't need a USB hub if they didn't reboot when you plugged into the USB ports. Speaking as someone who has two RPi's :-( and three Beaglebone Blacks :-) Of course I have a bias toward Ubuntu so the Beaglebones are a better fit for me for other reasons. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
$20 each is a fair price. I bet if someone here were to buy a lot of five (for less than $80) they could unload 3 or 4 of them here for $20 each shipped. I'd take one (at least) but have no use for five of them. The only good time-nut use of these is that some one has already figured out and documented how to build an ultra-accurate NTP server with them and has documented the hardware mods needed to upgrade the on-board clock. They were getting 1/10th uSec performance which is about 20x better than most people get using a generic PC. On Thu, May 23, 2013 at 9:11 AM, Andy Bardagjy a...@bardagjy.com wrote: The net4501s went way up in price, but there is a seller offering a lot of five net4521 boards plus five 64MB CF cards for $80 - and he is willing to accept less if you make an offer. Try lot 320744604969. They seem to be the same as a net4501 but with two PCMCIA slots. I was gonna try to run NTPd on it for a work project, though I've also got a few BeagleBone Blacks hanging around. Andy Bardagjy bardagjy.com On Thu, May 23, 2013 at 1:14 AM, mike cook mc235...@gmail.com wrote: Le 23 mai 2013 à 03:31, Jim Sanford a écrit : Do you have any documentation on how to use them? I have one that I bought to be an internet access point with a verizon card, failed due to verizon not complying with the RFCs. Love the device, but no information on ports, etc. Might want to play with it, or could make it available. User manuals, firmware etc from the Soekris.com site and there is plenty of OS installation/admin doc visible on the web. They marry with PCI or mini-PCI wifi cards that can be found cheaply. Mine were running FreeBSD but there are other flavors that support it. I say were because their power supplies failed after around 5years 24/24. The 4801s of the same vintage are still going. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
On 5/23/2013 2:02 PM, David J Taylor wrote: From: Paul [] The Raspberry Pi wouldn't need a USB hub if they didn't reboot when you plugged into the USB ports. Speaking as someone who has two RPi's :-( and three Beaglebone Blacks :-) == I have three Raspberry Pis and have not seen that behaviour. Cheers, David I have two Raspberry Pis and I haven't seen that behavior either. Jim ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Net4501's cheap...
On Thu, May 23, 2013 at 3:25 PM From: David J Taylor david-tay...@blueyonder.co.uk I have three Raspberry Pis and have not seen that behaviour. Perhaps you have the older boards. google Raspberry Pi Reboots on inserting a USB device by mahjongg » Mon Nov 19, 2012 12:09 am Don't hot plug USB devices directly into the PI, if you must hot plug plug into a hub instead! Its called the rush in current problem, and it makes that the current PI itself is non hot pluggable, note that the revision 1 PI was hot pluggable, as the two polyfuses prevented any rush in current because the fuses had a non zero resistance. But in the current board there is literally zero resistance between the PI's 5V supply, and any USB device you plug in, that means that if you plug in any USB device with empty power decouplers, (which act as a complete short for a very small time) then you are actually simply shorting the 5V when you plug de USB device in. The polyfuses in the revision 1 board however caused much greater problems than this problem, and for that reason have been removed. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Net4501's cheap...
Chris Albertson albertson.chris at gmail.com Thu May 23 15:19:17 EDT 2013 The reason to buy the pi, Ardurino, Launchpad or whatever is if you intend to hack the hardware. That's not my reason. If not then just buy a cheap notebook for $50 or less That's not an equivalent for my needs. I'm not a time nut so I'm probably pursuing different goals. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
Sorry, I should have been more clear. I saw 3 ethernet ports on the back of the 4501. So I thought a 'net switch would be a way to get more of those ports at the location of the Pi. That's all. Don David J Taylor From: Paul [] The Raspberry Pi wouldn't need a USB hub if they didn't reboot when you plugged into the USB ports. Speaking as someone who has two RPi's :-( and three Beaglebone Blacks :-) == I have three Raspberry Pis and have not seen that behaviour. Cheers, David -- SatSignal Software - Quality software written to your requirements Web: http://www.satsignal.eu Email: david-tay...@blueyonder.co.uk ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind. De Erroribus Medicorum, R. Bacon, 13th century. If you don't know what it is, don't poke it. Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
Do you have any documentation on how to use them? I have one that I bought to be an internet access point with a verizon card, failed due to verizon not complying with the RFCs. Love the device, but no information on ports, etc. Might want to play with it, or could make it available. Thanks 73, Jim wb4...@amsat.org On 5/19/2013 10:45 AM, Jason Rabel wrote: Just a heads up, there are some (8+ @ last count) used Soekris Net4501's for $29 on eBay (Search for: Soekris)... I submitted a bid for $20 each and it was instantly accepted... Don't know how low you can go, from the description the guy wants to get rid of them or they are going in the trash. Seems like a good deal if you are looking to make a little NTP server, especially compared to the retail price for a net4501... ;) I'm not affiliated with the seller in any way, I just love those little net4501's... I already have 5 of them, I don't know why I just bought 5 more... lol... Now I need more GPS modules! ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
I snatched one for $20 and they are now $59 or best offer. On Sun, May 19, 2013 at 11:18 AM, Bob Camp li...@rtty.us wrote: Hi There are a number of things that a Net4501 could be used for…. Bob On May 19, 2013, at 10:45 AM, Jason Rabel ja...@extremeoverclocking.com wrote: Just a heads up, there are some (8+ @ last count) used Soekris Net4501's for $29 on eBay (Search for: Soekris)... I submitted a bid for $20 each and it was instantly accepted... Don't know how low you can go, from the description the guy wants to get rid of them or they are going in the trash. Seems like a good deal if you are looking to make a little NTP server, especially compared to the retail price for a net4501... ;) I'm not affiliated with the seller in any way, I just love those little net4501's... I already have 5 of them, I don't know why I just bought 5 more... lol... Now I need more GPS modules! ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap...
I got 2 Sent from mobile On May 19, 2013, at 6:07 PM, Didier Juges shali...@gmail.com wrote: I snatched one for $20 and they are now $59 or best offer. On Sun, May 19, 2013 at 11:18 AM, Bob Camp li...@rtty.us wrote: Hi There are a number of things that a Net4501 could be used for…. Bob On May 19, 2013, at 10:45 AM, Jason Rabel ja...@extremeoverclocking.com wrote: Just a heads up, there are some (8+ @ last count) used Soekris Net4501's for $29 on eBay (Search for: Soekris)... I submitted a bid for $20 each and it was instantly accepted... Don't know how low you can go, from the description the guy wants to get rid of them or they are going in the trash. Seems like a good deal if you are looking to make a little NTP server, especially compared to the retail price for a net4501... ;) I'm not affiliated with the seller in any way, I just love those little net4501's... I already have 5 of them, I don't know why I just bought 5 more... lol... Now I need more GPS modules! ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap..
Seller obviously figured out that somebody feels they are of value and adjusted the selling price to see what he can squeeze out of them. I'd suggest making a $20 offer if you want to try to drive the price back down to what is reasonable Message: 6 Date: Sun, 19 May 2013 18:07:51 -0500 From: Didier Juges shali...@gmail.com To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Net4501's cheap... I snatched one for $20 and they are now $59 or best offer. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap..
There were two auctions... the $59 ones are new, the others lightly used. Now there are only the new ones left. On Sun, May 19, 2013 at 7:10 PM, Tom Clifton kc0...@yahoo.com wrote: Seller obviously figured out that somebody feels they are of value and adjusted the selling price to see what he can squeeze out of them. I'd suggest making a $20 offer if you want to try to drive the price back down to what is reasonable Message: 6 Date: Sun, 19 May 2013 18:07:51 -0500 From: Didier Juges shali...@gmail.com To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Net4501's cheap... I snatched one for $20 and they are now $59 or best offer. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Net4501's cheap..
On Sun, May 19, 2013 at 7:10 PM, Tom Clifton kc0...@yahoo.com wrote: Seller obviously figured out that somebody feels they are of value and adjusted the selling price to see what he can squeeze out of them. I'd suggest making a $20 offer if you want to try to drive the price back down to what is reasonable Don't over pay. These were neat devices in their day but now we have Raspberry Pi for $35 and Arduino and TI's Launchpad lineup. Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
