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Some comments on SDR radios and control software
wn4isx
OK I am not pushing the SDRplay line of SDR (software defined radios) but I received a PM that prompted this post. Oh I?have no relationship with SDRplay then as a generally satisfied customer. ? I've owned several SDRplays and found then all adequate for general shortwave listening with the added benefit of reception up to 2GHz. ? There are people using SDRplay RSPxx receivers for police scanners, listening to aviation, listening to satellites, all sorts of VHF/UHF reception. ? I can't speak to VHF/UHF reception because I gave up listening to police and fire when they went to APCO25 digital. ? There are ways to receive APCO25 with the SDRplay RSPxx series, but, reading the "how to" it felt like a lot more trouble than it was worth to me. ? SDRplay bought the rights to a SDR control program and have made upgrades over the last decade or so to improve performance and to interface other software. https://www.sdrplay.com/sdruno/ ? Recently they offered a new program developed in house that offers vastly improved performance. https://www.sdrplay.com/sdrconnect/ ? From my perspective the fact this software only operates on Window 10/11 and that was a deal killer. https://www.sdrplay.com/docs/SDRconnect_Release_Notes.pdf ? However this program also supports the Raspberry Pi4, Pi5. https://www.sdrplay.com/sdrconnect-more-raspberry-pi-sdrplay-support/ ? Now I don't know anything about Raspberry or Linux but a friend's daughter does, she makes embedded control systems and this was a 10 minute project for her. ? My Raspberry Pi 5 is in a forced ventilation case. It supports a nice LCD screen, keyboard, mouse, and remote access/control via Ethernet. ? I use the RSPdx for MW DXing. ? I also use the RSP-1a as a panoramic adaptor, 'spectrum analyzer', for use with my tricked out Kenwood R-2000. I use the older SDRuno with a Windows 7 64 bit professional computer that also runs audio analytic software to figure out data formats. I also use a hardware FSK demodulator to drive software decoders that another friend wrote. [sorry he plans to sell them, so I can't share copies.] ? Sidebar as they said in the O.J. trial. I've been into shortwave listening since I was 12. I saw my first panoramic adaptor later that summer at the ham shack of a friend of my father and fell in love with the idea you could see RF on either side of where you were tuned. It took about a minute to realize I could ID SSB, CW, AM voice or music, and FSK. I barely understood FSK but the waveform was crystal clear on a spectral display. It only took 50ish years to have a spectral display. ? ? NOTE: While I've found the RSP family suitable for my needs, others may find them lacking. I strongly suggest anyone ready to dip their toes in the world of SDR to do their research. SDRs range from simple USB thumb drive sized units, with what might be considered marginal performance to SDRs like the Perseus or WinRadio, both offer world class performance with different approaches. ? I've played with both and both are amazing radios and come at a premium price. I'd start with something more modest, SDRplay or Airspy are probably the best, decent, introductory SDRs. I have minimal experience, an afternoon, with an Airspy SDR, I wasn't overly impressed but the band could have been dead that day. It happens. ? NOTE 2: The thumb drive SDRs are considered little more then toys by many. I have zero experience with them so I don't have an opinion. |
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Re: Sata acquisition and data logging
On Saturday 08 March 2025 02:59:53 am wn4isx via groups.io wrote:
I suppose at some point I'll have to break down and learn Linux. But not yet. A friend says I should run Linuz with ?Virtualbox? shell running Windose when I need my fancy analysis program.I've run nothing but linux since 1999. And yeah, virtualbox is one way to go, this email client is running under Slackware 12.2 (because I like the older version of kmail) on a Debian host system. Works well for me... I'm looking at moving to a different virtualization system on this new computer I have here, I'm just not sure how I'm gonna port all this mail over. We're a m$-free zone here. :-) My lady had a compact little box that ran XP, until the hard drive croaked. After putting another one in that box I handed her an Ubuntu CD that I had handy and said "Here, try this and see if you like it" and she was fine with that. Some hardware got replaced, but that system was pretty dated. There was a similarly small box on ebay with Linux Mint pre-installed, and when I pointed that out she got it and has been using it ever since. Today she turns 80! If that non-technical person can handle it, you can too. There are a number of different versions of live CDs out there that you can boot and try out without having to install anything on your hard drive, I'll be glad to post some recommendations if you want. -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, ?a critter that can be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin |
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Re: Sata acquisition and data logging
On Friday 07 March 2025 12:41:40 pm wn4isx via groups.io wrote:
I went with the Dataq DI-1100 "Data Acquisition USB DAQ and Data Logger System, 12-bit, 20,000~40,000 Samples per second per channel.You can do a whole lot better than that, and way cheaper: -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, ?a critter that can be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin |
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Re: Sata acquisition and data logging
wn4isx
I suspect the HP units had a wider Vin and higher "oops" Vin but the Dataqs work as advertised, the Dataq software is amazingly flexible and the $79 Dataqs are extremely stable. The Dataq software can demand a lot of system resources for some functions but, all in all I'm very satisfied with them.?
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A friend has the $49 Windows 10 unit and, if you can get it work under Windows 7, you have to do some registry tricks, always dangerous, they work very well, for Windows 10/11 they are extremely stable and an amazing value for $50.
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I hate, loath, dispise and fear Windows 10/11 because your PC has to phone home to Micro$sloth or you get nagged.?
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I had one PC that ran Windows 10 because SDRplays new software required Windows 10/11 or a Raspberry. A friend's daughter configured a Raspberry for me and I was able to kill Windows 10 and replace it with Windows 7,
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I'm amazed how well the Raspberry runs the new control software and you can access the SDRplay RSP-DX via Ethernet. I suspect you could build a very powerful compact Dataq/Raspberry Linux data acquisition unit for power limited remote situations. I use an HP Netbook, a rather dumb little Windows box but smart enough to rum the DT-1100 with no problem.??
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It is odd to see a "computer" roughly the size of the RSP-DX run the software with no issues, very low latency on the Ethernet connection.
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I suppose at some point I'll have to break down and learn Linux. But not yet. A friend says I should run Linuz with ?Virtualbox? shell running Windose when I need my fancy analysis program.
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And yes I know Wine is not an emulator. It's almost there. My fancy analysis program sucks resources like a man rescued from the desert might guzzle water.
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Re: Sata acquisition and data logging
My first job working for HP as a Systems Engineer with Data ACQ hardware as my support product. I recall it being a large box with plugin boards for relays, thermo couples, digital ins and outs. Disturbing part was there were two different divisions of HP that made similar products. Trying to solve a customer problem became a knife edge tug to select the best match. These were controlled via HP-IB and the 9825 desktop computer. What a hassle when the customer had a Tektronix controller. There was a unique requirement for the command string to end with CR/LF. The Tek only ended with LF. It took a little addition to something, I can't remember what, 45 years ago, to change the termination. Those boxes were thousands of dollars along with the need for a controller. There was one customer that did not care. Underwriters Labs. They had multiple units connected to devices in temperature chambers. It was quite interesting. Dan Kahn On Friday, March 7, 2025 at 12:41:42 PM EST, wn4isx via groups.io <wn4isx@...> wrote: If you have projects that require data acquisition Ebay has several options but the gold standard would be Dataq. They offer a variety of data acquisition units, some are analog only, some feature analog and digital inputs. Their software is amazingly flexible and can allow you to view the data you've recorded in a variety of ways. Their most basic unit is about $50 but the drivers are for Windoze 10/11. It is possible to force an install under Windoze 7 64 bit professional but you risk breaking the install. ? I use Macrium Reflect disk imaging software so breaking an install takes about 6 minutes to boot the Reflect CD, snag the operational image and restore. There are many free disk imaging software packages out there, while I use Macrium Reflect, I won't pretend it is the best, but it was free and easy to learn to use. Being able to restore to a known good image makes it safe to try questionable software or configuration changes. I've broken ever version of Windows since Windows 3.11 For Work Groups. ? I went with the Dataq DI-1100 "Data Acquisition USB DAQ and Data Logger System, 12-bit, 20,000~40,000 Samples per second per channel. ? I actually have 4 DI-1100 in service. None has crashed. ? As of March 7, 2025 the DI-1100 costs $79 and comes with Dataq software. While the spec sheet says operation under Windows 7 will probably work, performance and unexpected errors are possible. ? I installed the drivers and software on a variety of HP PCs running Windows 7 64 bit professional. Your experience might be very different. ? I have an expensive data logger and analysis program that will only run under Windose, Wine and other Windose emulators for Linux don't work, yet. The software will load under Wine but doesn't properly work. So I'm stuck with Windows 7 64 bit professional for the foreseeable future. ? Dataq offers software for Linux but I have zero familiarly with Linux. ? The DI-1100 has 4 analog inputs with a +/10V range with a resolution of ±4.8 mV. ? [You can take a cheap sound card and bypass the input capacitor and use a resistive network to convert a cheap sound card to make a data acquisition unit. I've done this and it does work, might work pretty well, but is far less then optimal.] ? |
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Sata acquisition and data logging
wn4isx
If you have projects that require data acquisition Ebay has several options but the gold standard would be Dataq. They offer a variety of data acquisition units, some are analog only, some feature analog and digital inputs. Their software is amazingly flexible and can allow you to view the data you've recorded in a variety of ways. Their most basic unit is about $50 but the drivers are for Windoze 10/11. It is possible to force an install under Windoze 7 64 bit professional but you risk breaking the install. ? I use Macrium Reflect disk imaging software so breaking an install takes about 6 minutes to boot the Reflect CD, snag the operational image and restore. There are many free disk imaging software packages out there, while I use Macrium Reflect, I won't pretend it is the best, but it was free and easy to learn to use. Being able to restore to a known good image makes it safe to try questionable software or configuration changes. I've broken ever version of Windows since Windows 3.11 For Work Groups. ? I went with the Dataq DI-1100 "Data Acquisition USB DAQ and Data Logger System, 12-bit, 20,000~40,000 Samples per second per channel. ? I actually have 4 DI-1100 in service. None has crashed. ? As of March 7, 2025 the DI-1100 costs $79 and comes with Dataq software. While the spec sheet says operation under Windows 7 will probably work, performance and unexpected errors are possible. ? I installed the drivers and software on a variety of HP PCs running Windows 7 64 bit professional. Your experience might be very different. ? I have an expensive data logger and analysis program that will only run under Windose, Wine and other Windose emulators for Linux don't work, yet. The software will load under Wine but doesn't properly work. So I'm stuck with Windows 7 64 bit professional for the foreseeable future. ? Dataq offers software for Linux but I have zero familiarly with Linux. ? The DI-1100 has 4 analog inputs with a +/10V range with a resolution of ±4.8 mV. ? [You can take a cheap sound card and bypass the input capacitor and use a resistive network to convert a cheap sound card to make a data acquisition unit. I've done this and it does work, might work pretty well, but is far less then optimal.] ? |
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Re: Slew rate and BW logic when designing differentietor of a pulse
Hello Andy ,I lowered the rise time to 5ns,As you can see in the attached photos. I have 437mV/14ns=31V/usec? which twice lower then?80 V/μs which described in the datasheet.
How Can I improve the slew rate performance in the circuit?
Thanks. https://www.analog.com/media/en/technical-documentation/data-sheets/ad8033_8034.pdf |
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Re: OFF-TOPIC: Jeeps, shifting, and snow (was: Batteries)
Nice story. My left knee was replace about 5 years ago and I can kneel. Some folks say that they can not. This Friday I'm getting a shot in my right knee. The last shot was 4 month ago, that's about how long they last. After the shot it's like no problem at all. Can't complain at almost 85. Dan Kahn On Wednesday, March 5, 2025 at 08:57:21 PM EST, wn4isx via groups.io <wn4isx@...> wrote: At my last job the tractor of a tractor trailer was blocking our loading dock. The driver got into an argement with his dispatcher, left the keys on the seat and stomped off in a huff. No one but me had ever driven a vehicle without a synchromesh transmission and couldn't move the rig. I had the division manager write a nice letter with the agency assuming all liability before I moved it out of the way. It took a few false tries but I managed to move it a 100 feet onto the grass.? The company that owned the truck was beyond upset that someone without a CDL dared touch their precious truck and even more upset I'd parked it in the grass where the front wheels sank about 8 inches. ? Our first car was a 1969 VW bug and I kept trying to double clutch the poor thing. It was the worst snow Lexington has ever seen and a friend loaned me the car so I could get home. The advantage to learning to drive a clutch car on snow/ice covered roads was, once I learned to not double clutch, if I let the clutch out too fast the rear wheels broke free just like every other idiot on the road. It was 11 miles to home and by the time I got there, an hour, I was pretty good at shifting. ? That was the winter of 1977~78. I hope to never experience a winter like that again. We had 20 foot snow drifts in Fayette County. The next day after I got home I rigged a sled and we walked a mile to a grocery store to load up on supplies. A VW will go through almost anything, but 2 feet of snow lifts the car off the ground and it's no go time. By the time we made it to the store and home again, and took long hot showers and curled up together in our joined sleeping bags we were beyond beat. We'd just gotten a kitten who joined us. ? This last winter sucked because we got 5 or 6 inches of snow, then a half inch of rain that converted the top inch of snow to hard ice, then another 4 or 5 inches of snow. Our landlords spent 4 hours digging the top layer of snow and ice off, I used a broom to remove the bottom layer of snow, but we were too tired to go anywhere. Fortunately my wife learned a hard lesson back in 1978, keep enough food on hand. There are times I catch her looking in the pantry with an odd satisfied look on her face. ? ? This year she was out of the fun, had total right knee replacement on January 31, so walking in snow wasn't an option. ? Trust me, when you wear your knee out and it's time to replace it, go for it, yea it hurts, PT is a cast iron !@#$* but it will be well worth it. I had both of mine done last summer and there is now way I could have helped with the drive if I had my original knees. ? And it is snowing again. I'm so sick of the white stuff I could scream. I think I'll go to bed instead. ? About the jeep, unless you lived fairly close, it would have cost a fortune to move, and transferring ownership from someone in Kentucky to your state would have been a nightmare. There were several times when I was ready to send it to the crushers because of the legal nonsense. I lucked out, my younger sister saved all of Daddy's important papers and she had the original bill of sale and shipping order and we had photos from "Way back when." After a few hours of talking with the Sheriff, a state police detective, a motor vehicle enforcement officer and the county clerk everyone agreed the jeep wasn't stolen and there was no back tax because it had never been registered to begin with. What a PITA. NCIC had no record of the serial number, which was a bit of a hassle.? ? I wish the new owner success with the jeep and hope he has it ready for the Independence Day Parade here. I included a stripped R392/URR and the mating T-195 transmitter with jeep mounting platform. The T-195 was complete but I removed and destroyed the dynamotor. [like I need 1000V at 100mA] There's no way the T-195 would meet any modern transmitter specification and the high voltage could be lethal. It looks complete so the new owner is happy, although the R392/T-195 were really Korean conflict era comm gear. I tossed in some late WWII era "walkie talkies" and field phones. I pulled the crystal from the walkie talkie transmitter. No sense having someone come up around 50 MHz and get in trouble. ? ? |
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Re: OFF-TOPIC: Jeeps, shifting, and snow (was: Batteries)
wn4isx
At my last job the tractor of a tractor trailer was blocking our loading dock. The driver got into an argement with his dispatcher, left the keys on the seat and stomped off in a huff. No one but me had ever driven a vehicle without a synchromesh transmission and couldn't move the rig. I had the division manager write a nice letter with the agency assuming all liability before I moved it out of the way. It took a few false tries but I managed to move it a 100 feet onto the grass.?
The company that owned the truck was beyond upset that someone without a CDL dared touch their precious truck and even more upset I'd parked it in the grass where the front wheels sank about 8 inches.
?
Our first car was a 1969 VW bug and I kept trying to double clutch the poor thing. It was the worst snow Lexington has ever seen and a friend loaned me the car so I could get home. The advantage to learning to drive a clutch car on snow/ice covered roads was, once I learned to not double clutch, if I let the clutch out too fast the rear wheels broke free just like every other idiot on the road. It was 11 miles to home and by the time I got there, an hour, I was pretty good at shifting.
?
That was the winter of 1977~78. I hope to never experience a winter like that again. We had 20 foot snow drifts in Fayette County. The next day after I got home I rigged a sled and we walked a mile to a grocery store to load up on supplies. A VW will go through almost anything, but 2 feet of snow lifts the car off the ground and it's no go time. By the time we made it to the store and home again, and took long hot showers and curled up together in our joined sleeping bags we were beyond beat. We'd just gotten a kitten who joined us.
?
This last winter sucked because we got 5 or 6 inches of snow, then a half inch of rain that converted the top inch of snow to hard ice, then another 4 or 5 inches of snow. Our landlords spent 4 hours digging the top layer of snow and ice off, I used a broom to remove the bottom layer of snow, but we were too tired to go anywhere. Fortunately my wife learned a hard lesson back in 1978, keep enough food on hand. There are times I catch her looking in the pantry with an odd satisfied look on her face.
?
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This year she was out of the fun, had total right knee replacement on January 31, so walking in snow wasn't an option.
?
Trust me, when you wear your knee out and it's time to replace it, go for it, yea it hurts, PT is a cast iron !@#$* but it will be well worth it. I had both of mine done last summer and there is now way I could have helped with the drive if I had my original knees.
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And it is snowing again. I'm so sick of the white stuff I could scream. I think I'll go to bed instead.
?
About the jeep, unless you lived fairly close, it would have cost a fortune to move, and transferring ownership from someone in Kentucky to your state would have been a nightmare. There were several times when I was ready to send it to the crushers because of the legal nonsense. I lucked out, my younger sister saved all of Daddy's important papers and she had the original bill of sale and shipping order and we had photos from "Way back when." After a few hours of talking with the Sheriff, a state police detective, a motor vehicle enforcement officer and the county clerk everyone agreed the jeep wasn't stolen and there was no back tax because it had never been registered to begin with. What a PITA.
NCIC had no record of the serial number, which was a bit of a hassle.?
?
I wish the new owner success with the jeep and hope he has it ready for the Independence Day Parade here. I included a stripped R392/URR and the mating T-195 transmitter with jeep mounting platform. The T-195 was complete but I removed and destroyed the dynamotor. [like I need 1000V at 100mA] There's no way the T-195 would meet any modern transmitter specification and the high voltage could be lethal. It looks complete so the new owner is happy, although the R392/T-195 were really Korean conflict era comm gear. I tossed in some late WWII era "walkie talkies" and field phones. I pulled the crystal from the walkie talkie transmitter. No sense having someone come up around 50 MHz and get in trouble.
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Re: OFF-TOPIC: Jeeps, shifting, and snow (was: Batteries)
My truck is also non-synchronous, double clutching is absolutely required. It becomes second nature once you grab ahold of the floor shifter. Dan On Wednesday, March 5, 2025 at 12:20:53 PM EST, wn4isx via groups.io <wn4isx@...> wrote: On Tue, Mar 4, 2025 at 06:31 PM, Dan Kahn wrote: Do you still have the Jeep? I restored a 1939 Plymouth Pickup truck and would love to restore a Jeep.No, I traded it to a WWII reenactor. My father bought the jeep new surplus in 1949. The state decided the original bill of sale was OK for licensing. The jeep ran fine in 1975 when Dad realized he wasn't going to drive it again. It had just over 400 miles on it. I suspect all the rubber would need to be changed. It was stored inside so the paint was like new.? Fortunately there is a fairly large group of WWII jeep enthusiasts so parts won't be hard to locate. ? I 'learned' to drive in that jeep. Across cornfields that had been harvested. I'd just turned 9 and could barely reach the pedals and hang on to the steering wheel. ? And forget synchromesh transmissions, double clutching was an experience.? Fortunately they were made for rough service.?? ? One thing about WWII jeeps is they have a high center of gravity and you can roll them in a heartbeat. I nearly managed it at 20MPH in fairly soft dirt when I turned too sharply. ? ? |
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OFF-TOPIC: Jeeps, shifting, and snow (was: Batteries)
wn4isx
On Tue, Mar 4, 2025 at 06:31 PM, Dan Kahn wrote:
Do you still have the Jeep? I restored a 1939 Plymouth Pickup truck and would love to restore a Jeep.No, I traded it to a WWII reenactor. My father bought the jeep new surplus in 1949. The state decided the original bill of sale was OK for licensing. The jeep ran fine in 1975 when Dad realized he wasn't going to drive it again. It had just over 400 miles on it. I suspect all the rubber would need to be changed. It was stored inside so the paint was like new.? Fortunately there is a fairly large group of WWII jeep enthusiasts so parts won't be hard to locate.
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I 'learned' to drive in that jeep. Across cornfields that had been harvested. I'd just turned 9 and could barely reach the pedals and hang on to the steering wheel.
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And forget synchromesh transmissions, double clutching was an experience.?
Fortunately they were made for rough service.??
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One thing about WWII jeeps is they have a high center of gravity and you can roll them in a heartbeat.
I nearly managed it at 20MPH in fairly soft dirt when I turned too sharply.
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Re: Slew rate and BW logic when designing differentietor of a pulse
john23,
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I uploaded this file:
which is in this group's Temp directory in Files.
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Run it, then click in the plot window, and press the Spacebar to re-load the plot settings.? It compares the circuit's actual response with the ideal derivative of the input voltage.
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You can see that the circuit fails to approximate the derivative.? The ideal output at V(out) should be the negative of the derivative of V(in), but it does not look like that at all.? So when you wrote that the circuit is "working", all I can say is that it is working extremely poorly.? It lacks the bandwidth needed to approximate the actual derivative of the input pulse.? For the 1 ns rise time, the extreme leading edge of V(out) somewhat follows the derivative of V(in), but it is in the wrong direction!? Then several nanoseconds later it swings down, and then rings.? So it is completely wrong, lacking bandwidth.
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I thought the response might have been coupling via another mechanism, but it is not that.? It is doing the best that it can, with too little bandwidth.? That's all.? Its output voltage wiggles, but wrongly.
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Andy
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File /Temp/AD8034_differentiator.zip uploaded
#file-notice
Group Notification
The following items have been added to the Files area of the [email protected] group. By: Andy <ai.egrps@...> Description: |
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Re: Batteries
开云体育I know what you mean and agree it would be better if a non-standard size. On a practical basis, if someone is paying $20-30 for a battery, it is not left on the kitchen table. These batteries typically are strictly inventoried by the companies that buy them.? Military, space, and other critical applications. Bertho ? From: [email protected] <[email protected]> On Behalf Of Andy via groups.io
Sent: 4 March, 2025 20:44 To: [email protected] Subject: Re: [electronics101] Batteries ? On Tue, Mar 4, 2025 at 11:24 AM, Bertho wrote:
I get that. ? But the problem is they are selling them in the AA, C, and D form-factors, where the expected voltage is 1.5 V, not 3.6 V.? That is a catastrophe waiting to happen. ? Andy ? |
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Batteries
On Tue, Mar 4, 2025 at 11:24 AM, Bertho wrote:
I get that. ?
But the problem is they are selling them in the AA, C, and D form-factors, where the expected voltage is 1.5 V, not 3.6 V.? That is a catastrophe waiting to happen.
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Andy
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Re: Slew rate and BW logic when designing differentietor of a pulse
john23,
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Every time you delete and re-send a message, that is one more message we receive from you.
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So far I have received 6 messages that you've sent in this topic, but only 2 remain.? You can't delete the ones in our email.? I know it can be difficult, but try to get the messages right before sending, so that you don't need to delete and re-send over and over.
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Andy
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Re: Slew rate and BW logic when designing differentietor of a pulse
On Tue, Mar 4, 2025 at 03:39 PM, john23 wrote:
From the datasheet and a few calculations.
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Your simulation uses +/- 7.5 V power.? Let's assume the output can approach (not reach) the rails.? The output pin sees R2 = 200 ohms to a virtual ground.? 7.5 / 200 = 37.5 mA.? The datasheet shows output short-circuit current = 40 mA typical with +/- 5 V supplies.? ?That is not guaranteed.? Figure 37 shows the output saturation voltage, where the output can't source or sink any more current.? It starts limiting around 25 mA, which is less than 37.5 mA, and again that is typical.? Let's say the minimum at clipping is 20 mA, which limits your outputs to only half the supply voltages (clips at +/- 4 V because of the 200 ohm load).
With the circuit wired as it was simulated, see at what point the output voltage clips.? Again, keep in mind it is typical only; worst-case will be worse than what is measured.
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Andy
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Re: Wireless Camera repair
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Re: OFF-TOPIC: Jeeps, shifting, and snow (was: Batteries)
Do you still have the Jeep? I restored a 1939 Plymouth Pickup truck and would love to restore a Jeep. Dan Kahn Newfoundland PA On Tuesday, March 4, 2025 at 03:39:56 PM EST, wn4isx via groups.io <wn4isx@...> wrote: On Tue, Mar 4, 2025 at 08:45 AM, Donald H Locker wrote: until I clear out "all that stuff you've got here!In our case it was me who decided "Dear God I've got to downsize!" I had about 30X30X20 in the corner of a warehouse filled with 'stuff.' I even had a WWII era jeep. That was a nightmare to license and transfer. I'm down to a few photocopy boxes of stuff I have to do some serious thinking. It might be worth the effort to sell on Ebay.? I found stuff I had no idea I had or where it came from. ? The university used to have surplus property auctions the 3rd Thursday of most months and I'd visit afte the big boys took what they wanted and pick out some "gold". a brand new Bird termaline watt meter, a perfect Bird throughline VSWR meter, audio oscillators, radiation detectors out the ying yang. All sorts of goodies that I'll never use. ? There is a certain feeling of freedom getting rid of stuff you'll never use. ? ? ? ? |
Bertho