Re: Some comments on SDR radios and control software
Pieter-Tjerk de Boer, PA3FWM? has a series of articles on E-Field antennas that can be extremely helpful in getting the best performance from these antennas.
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Fundamentals of the MiniWhip antenna
https://www.pa3fwm.nl/technotes/tn07.html
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Grounding of MiniWhip and other active whip antennas
https://www.pa3fwm.nl/technotes/tn09d.html
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[Note it is critical to properly ground the E-Field antenna at the antenna and to isolate the coaxial cable feedline from EMI generated within your home!]
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Simple and better circuit for MiniWhip antennas
https://www.pa3fwm.nl/projects/miniwhip/
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Martin G8JNJ had a very informative web page on active antennas. His use of high inductance RF chokes in the feedline is an extremely useful technique to isolate the ative antenna from EMI generated in the home. Sadly his webpage has vanished but a PDF capture of the webpage can be found at
https://qsl.net/l/lw7dfm/Antenas/Antena%20Mini%20Whip/MARTIN%20-%20G8JNJ%20-%20Active%20antennas.pdf
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His webpage is archived on the "wayback machine" but it won't always load.
https://web.archive.org/web/20230722120107/https://www.g8jnj.net/activeantennas.htm
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I use quad shielded 75 ohm flooded coaxial cable to connect to my E-Field antennas. Assuming my Kenwood R-2000 receiver has an actual antenna input impedance of 50 ohms, exceptionally unlikely, the worst case VSWR would be 1.5:1.
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The SDRplay RSP-dx has a claimed input impedance of 50 ohms over it's entire operational range. I have no reason to doubt this but no way to verify it either. Reception was so similar with the 75 ohm and 50 ohm coaxial cable I couldn't tell any difference and 75 ohm flooded (rated for direct burial) cable is a lot easier for me to obtain here in central Kentucky. The son of a member of our shortwave listening club is an engineer for the local cable TV company and can divert reasonable lengths of coax. I also have 7/8 hardline for the two antennas located the farthest from our home.
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I just connected a Radio Shack Disk Cone antenna (at least 40 years old now) to my RSP-dx and I can receive all of the NOAA VHF WX stations within 150 miles. There are more commercial FM BCB stations then I can count and I can receive a 2M amateur repeater that I know runs 50W that is located just over 100 miles from my home. Constructing a decent disk cone isn't that challenging but Diamond and others offer them for reasonable prices, so it becomes, do I want to trade money for time.
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Pedid y recibiréis
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Simple and better circuit for MiniWhip antennas
https://www.pa3fwm.nl/projects/miniwhip/
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The 2SC5551A might be a viable substitute for the 2N5109 in the original PA0RDT Mini-Whip. It has a lower Ic but better Ft. This is one of my way too many projects that I might get around to before I run out of time on this side of the grass.
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Re: Some comments on SDR radios and control software
Thanks, I have no specific plans except testing the new technology and also look at GPS signals. I did a lot of work with GPS 30 years ago and I still have some active GPS antennas to try. The PAORDT type active antenna looks like a good general start. Bertho ?
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From: [email protected] <[email protected]> On Behalf Of wn4isx via groups.io
Sent: 8 March, 2025 22:00
To: [email protected]
Subject: Re: [electronics101] Some comments on SDR radios and control software? What do you want to listen to? I might be able to offer some advice.
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Previously wn4isx posted a link to: The reference refers to an improved version but there is no link to it. Does anyone know where I can find the improved version schematic? Any other suggestions? I remember seeing an article about installing an active antenna and avoiding extra local noise, but I do not remember where I saw it. Using SMT components is not a problem. Thanks Bertho ?
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Re: Some comments on SDR radios and control software
What do you want to listen to?
I might be able to offer some advice.
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Re: Sata acquisition and data logging
As I mentioned, I have one main program that was extremely expensive, cost me over $1000, I also routinely use Adobe Audition, while there are good audio programs for Linux like Audacity, they are not nearly as powerful or flexible as Audition. Until and unless I can get those programs to work under Linux, I'm stuck with Windoze.?
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Re: Sata acquisition and data logging
Yes but I'd be forced to learn to use an Ardino, build a case, etc, the Dataq requies a USB cable and is ready to go, time saved at my age is well worth a few dollars.
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Re: Some comments on SDR radios and control software
Thanks for the introduction of SDRplay. I used to design commercial RF equipment but not for the last couple of decades. So I decided to buy the SDRply RSPdx-R2. Now I have to review the antenna options. Bertho ? From: [email protected] <[email protected]> On Behalf Of wn4isx via groups.io
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.
? Recently they offered a new program developed in house that offers vastly improved performance.
? From my perspective the fact this software only operates on Window 10/11 and that was a deal killer.
? However this program also supports the Raspberry Pi4, Pi5.
? 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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Some comments on SDR radios and control software
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.
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I've owned several SDRplays and found then all adequate for general shortwave listening with the added benefit of reception up to 2GHz.
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There are people using SDRplay RSPxx receivers for police scanners, listening to aviation, listening to satellites, all sorts of VHF/UHF reception.
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I can't speak to VHF/UHF reception because I gave up listening to police and fire when they went to APCO25 digital.
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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/
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Recently they offered a new program developed in house that offers vastly improved performance.
https://www.sdrplay.com/sdrconnect/
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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
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However this program also supports the Raspberry Pi4, Pi5.
https://www.sdrplay.com/sdrconnect-more-raspberry-pi-sdrplay-support/
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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.
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My Raspberry Pi 5 is in a forced ventilation case. It supports a nice LCD screen, keyboard, mouse, and remote access/control via Ethernet.
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I use the RSPdx for MW DXing.
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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.]
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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
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: Slew rate and BW logic when designing differentietor of a pulse
On Fri, Mar 7, 2025 at 06:25 AM, john23 wrote:
How Can I improve the slew rate performance in the circuit?
- Faster op-amp.
- An alternative differentiator that does not depend on an op-amp.
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Andy
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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
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.
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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.
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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.
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I actually have 4 DI-1100 in service. None has crashed.
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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.
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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.
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Dataq offers software for Linux but I have zero familiarly with Linux.
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The DI-1100 has 4 analog inputs with a +/10V range with a resolution of ±4.8 mV.
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[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)
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)
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)
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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Bertho