- What happened to Car Radio Antennas? - 15 Updates
- Tek 465 degree-of-difficulty repair - 2 Updates
- In Need of tone genertor/cable tracer - 3 Updates
| Ralph Mowery <rmowery42@charter.net>: Sep 01 12:54PM -0400 In article <slrnsiv9t9.t6m.nomail@xs9.xs4all.nl>, nomail@example.com says... > poster probably is). The common levels of interference these days, > likely emitted by fully compliant devices, overwhelm all but the > strongest signals on frequencies below a couple of MHz. I am aproching 50 years an a radio amateur. It is not just a couple of MHz but even higher. Riding around with a transceiver around 52 MHz and some of the fuel pumps and even the stop lights create some noise problems. Even some of the lights in homes will cause radio problems. The FCC allows a certain amount of unwanted radiation by almost any electrical device . I have not kept up with things like that in a long time. When the personal computers came out there were some programs written where you could sit a radio near the computer and use the computer to make music with. The FCC came out with two sets of rulings. One for home devices which were stricter than the computers used for industries. |
| David Lesher <wb8foz@panix.com>: Sep 01 06:10PM >Many devices will interfere with AM radios. The FCC has a limit on how >much is allowed. The car may just produce enough to affect the onboard >AM radio, but not ones 50 feet away. The FCC regulates emitters/emissions by category. The fun part is which one does a car fall under? -- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close.......................... Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433 |
| Michael Trew <michael.trew@att.net>: Sep 01 03:06PM -0400 On 8/31/2021 12:48 PM, David Lesher wrote: >> But most cars nowadays only have FM and DAB+ anyway. > For some reason, Tesla's do not have an AM band. > I can't imagine why that is... I rented a new, '20 or '21 Uhaul (GMC Sierra) pickup truck for a day. The AM radio is actually incredible; sounds better than it does in any of my 20+ year old cars. I was very impressed, it seemed that it filtered out lots of static. Distant stations had minimal static interference, just the audio went in and out slowly as the station got weaker. |
| Phil Allison <pallison49@gmail.com>: Sep 01 02:28PM -0700 Ralph Mowery wrote: ================== > People buying the electric cars probably do not listen to the AM > stations anyway,but FM and the Sirus radio. ** AM radio has a huge advantage at long distance from the Tx. But seeing as Teslas cannot do long trips into the countryside..... ...... Phil |
| Michael Terrell <terrell.michael.a@gmail.com>: Sep 02 04:00AM -0700 On Wednesday, September 1, 2021 at 12:54:19 PM UTC-4, Ralph Mowery wrote: > MHz but even higher. Riding around with a transceiver around 52 MHz and > some of the fuel pumps and even the stop lights create some noise > problems. Even some of the lights in homes will cause radio problems. There are some traffic lights around here that you can hear change colors from almost a mile away. The noise is coupled into the power lines feeding a substation, and it is re radiated from them. Basically a carrier current noise source from a poorly filtered SMPS. The high failure rate of the LED lamps in the traffic lights has more being switched back to lower efficiency, extra long life incandescent bulbs. Just about every LED light you see has one or more clusters of dead LEDs, in spite of some people's claim that they do not fail.. |
| Chris Jones <lugnut808@spam.yahoo.com>: Sep 02 10:42PM +1000 On 01/09/2021 08:11, Phil Allison wrote: >> - interference from motor control > ** Obvious reason. > AM radio simply does not work satisfactorily in their wacky contraptions. I thought that was the reason, so I tried it with a Walkman-type AM radio inside the car, and the reception was actually very good. I couldn't hear any significant interference, even with the motor operating - admittedly just gentle driving. Perhaps with a station on a more unlucky frequency it wouldn't work so well, or at least not quite well enough for the fussiest of customers. Since AM radio is used for emergency info in Australia, if the car doesn't have AM radio built in then it might make sense to keep a cheap pocket AM radio in the car for the possiblilty that there is no cellular or DAB reception (both of which provide the same stations in normal times, but which might not work during a real emergency). |
| "Peter W." <peterwieck33@gmail.com>: Sep 02 05:49AM -0700 > But seeing as Teslas cannot do long trips into the countryside..... Maybe down-under. Around here, one is seldom more than 15 miles from a charger. At our summer house (north-central part of Pennsyltucky) there are three within 7 miles. This, by the way, is Ford F150 country. https://www.tesla.com/findus?v=2&bounds=54.35365127015694%2C-57.079102750000004%2C21.879812748944772%2C-141.45410275&zoom=5&filters=store%2Cservice%2Csupercharger%2Cdestination%20charger%2Cbodyshop Note also that a Tesla carries an on-board charger as well, meaning that it may be plugged in to any standard 120V or 240V receptacle (Slow & Medium Charge), or to a 240V, 100A heavy duty pin-and-sleeve receptacle for a very fast charge. Be careful with your 'cannot'. Absolute statements are typically absolutely wrong. Peter Wieck Melrose Park, PA |
| Phil Allison <pallison49@gmail.com>: Sep 02 05:52AM -0700 Chris Jones Retard wrote: ---------------------------------------- > > AM radio simply does not work satisfactorily in their wacky contraptions. > I thought that was the reason, so I tried it with a Walkman-type AM > radio inside the car, ** Regular AM portable radios barely work inside steel body cars. Why the fuck to ALL car radios have* external* antennas ?? > Since AM radio is used for emergency info in Australia, if the car > doesn't have AM radio built in then it might make sense to keep a cheap > pocket AM radio in the car ** Bollocks. .... Phil |
| Rob <nomail@example.com>: Sep 02 03:37PM +0200 >> some of the fuel pumps and even the stop lights create some noise >> problems. Even some of the lights in homes will cause radio problems. > There are some traffic lights around here that you can hear change colors from almost a mile away. The noise is coupled into the power lines feeding a substation, and it is re radiated from them. Basically a carrier current noise source from a poorly filtered SMPS. The high failure rate of the LED lamps in the traffic lights has more being switched back to lower efficiency, extra long life incandescent bulbs. Just about every LED light you see has one or more clusters of dead LEDs, in spite of some people's claim that they do not fail.. We even have a brand of traffic light systems that emit a carrier (some clock crystal) with a harmonic that interferes with the local 70cm repeater on 430.125 MHz. When you stop at certain traffic lights, you get a whining noise on a receiver tuned to the repeater because it isn't exactly the same frequency. But the range is only some 25-50m. |
| Chris Jones <lugnut808@spam.yahoo.com>: Sep 02 11:38PM +1000 On 02/09/2021 22:52, Phil Allison wrote: > Chris Jones Retard wrote: Come on, you used to put much more effort into your insults! >> radio inside the car, > ** Regular AM portable radios barely work inside steel body cars. > Why the fuck to ALL car radios have* external* antennas ?? I didn't expect it to work, I expected to hear interference and not much signal. Admittedly the transmitter was only a few tens of km away, but that is the situation that I was interested in. |
| "ohg...@gmail.com" <ohger1s@gmail.com>: Sep 02 06:41AM -0700 > ** AM radio has a huge advantage at long distance from the Tx. > But seeing as Teslas cannot do long trips into the countryside..... > ...... Phil Depends where you are. I know the Supercharger network is not widespread in your area, but it's very widespread in Europe and available nearly everywhere in the states. A Tesla will run for over 4 hours on a charge at highway speeds, and there is never a charger more than 15 minutes away anywhere in the Northeast U.S. |
| "Peter W." <peterwieck33@gmail.com>: Sep 02 06:51AM -0700 > ** Regular AM portable radios barely work inside steel body cars. Those of us who carry a portable radio for emergency purpose while on long trips tend not to carry a 'regular' radio. In our case, it will be either a Siemens RK-747, or a Grundig YB500. It is an interesting phenomenon that we are more often outside of Cell range than AM Radio range. But either of the two mentioned above do just fine inside a vehicle, running or inert. > Why the fuck to ALL car radios have* external* antennas ?? Because, at least today, they must serve many masters - including AM/FM/Satellite/GPS & Cell Phone syncing. Our 2005 Volvo XC70 without sync and navigation/GPS had all the various functions laminated into the windshield. No shark-fin, Peter Wieck Melrose Park, PA |
| Phil Allison <pallison49@gmail.com>: Sep 02 06:53AM -0700 ohg...@gmail.com wrote: ======================= > A Tesla will run for over 4 hours on a charge at highway speeds, > and there is never a charger more than 15 minutes away anywhere in the Northeast U.S. >** So there is simply NO countryside in the NE of the US ???? Tesla FREAKOIDS MORONS are the BIGGEST FUCKING LIARS on the planet. .... Phil |
| Phil Allison <pallison49@gmail.com>: Sep 02 06:56AM -0700 Peter Wanker is a LYING CUNT !!! . > > ** Regular AM portable radios barely work inside steel body cars. > Those of us who carry a portable radio for emergency purpose while on long trips tend not to carry a 'regular' radio. ** Fuck of you ravng stinking LOONEY !!f > > Why the fuck to ALL car radios have* external* antennas ?? > Because, at least today, they must serve many masters ** FYI you VILE, ASD FUCKED, NARCISSISTIC CUNT !! Cars have ALWAYS used external antennas !!!!!!!!!!!!!!! ..... Phil |
| "Peter W." <peterwieck33@gmail.com>: Sep 02 07:06AM -0700 > >** So there is simply NO countryside in the NE of the US ???? Look at the map linked above. There are vast areas of 'countryside' outside of the North East. Also pretty well served. DO ALSO understand the concept of an 'on board' charger. We were, recently, in St. Ignace. MI. The nearest Tesla charger per the map is across the straits in Mackinaw City - however, our hotel had two (2) pin & sleeve receptacles and one (1) Bosch EV800 station in the parking lot. This in a tiny Michigan tourist town. I am sure it was not the only one. You are given to absolute (and wrong) statements. And when called on it, you spin like an Iranian centrifuge. Very, very sad. Peter Wieck Melrose Park, PA |
| Chris Jones <lugnut808@spam.yahoo.com>: Sep 02 10:30PM +1000 On 01/09/2021 08:54, Phil Allison wrote: > On loan, from a Sydney based IBM engineer - son of the man I worked for. > Not very fond of it cos it lacked the one thing a good analogue scope needs. > A sharply focused trace. Low-bandwidth scopes tended to have better focus. The noise of the vertical amplifiers can of course be reduced by filtering out the high frequency noise afterwards. The trace on a 475 gets quite a bit sharper when it is set into low-bandwidth mode. Perhaps it is an argument for having two scopes, one with a sharp trace and one with more bandwidth. I haven't got any reasonable justification for the number of analogue scopes that I have though, apart from "that looks too good to stay in the dumpster". |
| Phil Allison <pallison49@gmail.com>: Sep 02 05:41AM -0700 Chris Jones Pommy Shit wrote: ==================== > > Not very fond of it cos it lacked the one thing a good analogue scope needs. > > A sharply focused trace. > Low-bandwidth scopes tended to have better focus. ** Dopes tend to say idiotic things ... > The noise of the vertical amplifiers ** Totally irrelevant to my comments. Just as fuckwits like you are to normal humans. ...... Phil |
| Phil Allison <pallison49@gmail.com>: Sep 01 02:32PM -0700 timoth...@gmail.com wrote: ====================== > especially about other current sources coupling to underground lines. > It seems just possible though maybe not likely that I can find an AM radio or other device that > will buzz a bit close to the line, and that the effect is larger if it's carrying a good current, worth a try anyway. ** It would be a plus to put a triac dimmer controlled load on the end of that cable run. ..... Phil |
| Tim R <timothy42bach@gmail.com>: Sep 01 07:43PM -0700 > > will buzz a bit close to the line, and that the effect is larger if it's carrying a good current, worth a try anyway. > ** It would be a plus to put a triac dimmer controlled load on the end of that cable run. > ..... Phil Dang, that's a good idea. I was thinking a heater plus a lamp with led and CFL, but the dimmer sounds good. |
| brucek <brucek@valinet.com>: Sep 01 11:25PM -0400 "Peter W." <peterwieck33@gmail.com> Wrote in message:r -- ----Android NewsGroup Reader---- https://piaohong.s3-us-west-2.amazonaws.com/usenet/index.html |
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