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Have One ? "Regency TR-1" - Orig Commercial Transistor Radio

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  Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-16 01:15 -0400
    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-16 10:31 +0100
    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio John McCue <jmclnx@gmail.com.invalid> - 2025-08-20 15:30 +0000
      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-20 22:38 +0200
        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-20 23:59 -0400
      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio not@telling.you.invalid (Computer Nerd Kev) - 2025-08-21 08:02 +1000
      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-21 06:52 +0000
        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-21 03:34 -0400
        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 12:28 +0200
          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-22 09:41 -0400
            Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-22 19:14 +0100
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 20:37 +0200
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-22 20:00 +0100
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 22:36 +0200
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-22 21:58 +0100
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-23 02:42 -0400
                      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:22 +0100
                        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:06 +0000
                        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 02:22 -0400
                          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-24 10:53 +0100
                      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-24 00:22 +0200
                        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-24 05:10 +0000
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 06:00 +0000
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:15 +0100
                      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:32 +0000
                        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-24 10:44 +0100
                          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 05:51 -0400
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-23 18:02 +0000
                      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:34 +0000
                        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-24 00:18 +0000
                      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 23:24 +0000
                      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 04:02 -0400
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-22 23:06 -0400
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:11 +0100
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 01:53 -0400
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-22 23:01 -0400
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:05 +0100
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 10:20 +0000
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-24 00:27 +0200
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-24 10:49 +0100
                      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-24 21:28 +0000
                        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-25 12:23 +0100
                          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-26 03:32 -0400
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 01:40 -0400
            Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 20:35 +0200
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-22 22:26 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-23 01:29 +0200
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 00:23 +0000
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:01 +0100
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 10:19 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 06:04 +0000
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:16 +0100
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:08 +0000
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-24 00:30 +0200
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 02:14 -0400
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-23 18:02 +0000
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 03:51 -0400
                      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-24 21:19 +0000
            Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-22 19:48 +0000
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-22 21:57 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 06:25 +0000
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:20 +0100
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:45 +0000
                      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-24 10:46 +0100
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 23:29 +0000
                      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-24 04:30 +0000
                  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-23 18:02 +0000
                    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:49 +0000
                      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-24 00:18 +0000
                        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-24 04:59 +0000
                          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-24 19:19 +0000
                        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-24 10:47 +0100
                          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-24 19:19 +0000
                          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-24 22:13 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-23 03:15 -0400
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-23 02:25 -0400
        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-21 20:37 +0000

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#72195

On Sun, 24 Aug 2025 10:49:32 +0100, The Natural Philosopher wrote:

> On 23/08/2025 23:27, Carlos E.R. wrote:
>> On 2025-08-23 12:05, The Natural Philosopher wrote:
>>> Many chinese style designs said '9 transistor' and when you looked at
>>> the circuit, 3 of them were duds, just soldered in the board but not
>>> connected to anything...
>> 
>> Were they actual transistors, or also themselves duds? Transistors were
>> not that cheap initially.
>> 
> Oh rejects.
> The sort of thing Clive Sinclair used to badge as 'wonder components'

I'm familiar with his wonder components. I bought a ZX80 kit when they 
first came out, curious to see what he did with a Z-80. I don't remember 
the specifics but some user troubleshooting and modification was needed to 
get it working. I suppose the membrane keyboard was no worse than any of 
them.

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#72243

On 24/08/2025 22:28, rbowman wrote:
> On Sun, 24 Aug 2025 10:49:32 +0100, The Natural Philosopher wrote:
> 
>> On 23/08/2025 23:27, Carlos E.R. wrote:
>>> On 2025-08-23 12:05, The Natural Philosopher wrote:
>>>> Many chinese style designs said '9 transistor' and when you looked at
>>>> the circuit, 3 of them were duds, just soldered in the board but not
>>>> connected to anything...
>>>
>>> Were they actual transistors, or also themselves duds? Transistors were
>>> not that cheap initially.
>>>
>> Oh rejects.
>> The sort of thing Clive Sinclair used to badge as 'wonder components'
> 
> I'm familiar with his wonder components. I bought a ZX80 kit when they
> first came out, curious to see what he did with a Z-80. I don't remember
> the specifics but some user troubleshooting and modification was needed to
> get it working. I suppose the membrane keyboard was no worse than any of
> them.

'He' didn't do *anything* with a Z-80.

"The Sinclair ZX80 was primarily designed by Jim Westwood for the 
internal electronics, while John Pemberton was responsible for the case 
design."

"Sinclair BASIC was developed by John Grant and Steve Vickers of Nine 
Tiles Ltd. for the software."

His flair was in telling porkies, conning up front money from the 
gullible and dreaming up projects that fitted his notion of 'the future' 
whilst having no idea how to turn them into reality.

-- 
Religion is regarded by the common people as true, by the wise as 
foolish, and by the rulers as useful.

(Seneca the Younger, 65 AD)

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#72274

On 8/25/25 7:23 AM, The Natural Philosopher wrote:
> On 24/08/2025 22:28, rbowman wrote:
>> On Sun, 24 Aug 2025 10:49:32 +0100, The Natural Philosopher wrote:
>>
>>> On 23/08/2025 23:27, Carlos E.R. wrote:
>>>> On 2025-08-23 12:05, The Natural Philosopher wrote:
>>>>> Many chinese style designs said '9 transistor' and when you looked at
>>>>> the circuit, 3 of them were duds, just soldered in the board but not
>>>>> connected to anything...
>>>>
>>>> Were they actual transistors, or also themselves duds? Transistors were
>>>> not that cheap initially.
>>>>
>>> Oh rejects.
>>> The sort of thing Clive Sinclair used to badge as 'wonder components'
>>
>> I'm familiar with his wonder components. I bought a ZX80 kit when they
>> first came out, curious to see what he did with a Z-80. I don't remember
>> the specifics but some user troubleshooting and modification was 
>> needed to
>> get it working. I suppose the membrane keyboard was no worse than any of
>> them.
> 
> 'He' didn't do *anything* with a Z-80.
> 
> "The Sinclair ZX80 was primarily designed by Jim Westwood for the 
> internal electronics, while John Pemberton was responsible for the case 
> design."
> 
> "Sinclair BASIC was developed by John Grant and Steve Vickers of Nine 
> Tiles Ltd. for the software."
> 
> His flair was in telling porkies, conning up front money from the 
> gullible and dreaming up projects that fitted his notion of 'the future' 
> whilst having no idea how to turn them into reality.

   The ZX-80 was a sort of marketing gimmick ... bits
   and pieces drawn from everywhere JUST so they could
   make "the cheapest PC".

   Found an old ad for it the other day.

   The ZX-81 was a better actual PC. Had one, plus the
   little thermal printer. Probably STILL have it somewhere
   in a box.

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#72112

On 8/23/25 6:05 AM, The Natural Philosopher wrote:
> On 23/08/2025 04:01, c186282 wrote:
>> On 8/22/25 2:14 PM, The Natural Philosopher wrote:
>>> On 22/08/2025 14:41, c186282 wrote:
>>>>
>>>>> I got this one when I went to uni:
>>>>>
>>>>> <https://www.etsy.com/es/listing/1791229461/vintage-sanyo-transistor-radio-amfm> 
>>>>
>>>>
>>>>
>>>>    I remember those !  🙂
>>>>
>>>>    Alas most of those little old radios had rather
>>>>    poor sensitivity plus poor selectivity.
>>>>
>>> Actually selectivity came easy as adding transistors was way cheaper 
>>> than adding valves.
>>> And sensitivity soon got down towards the thermal noise
>>
>>    Sure, LATER models. However the mid 50s units were
>>    not so great - BUT *portable* so ...
>>
>>    So long as Frankie and Annette could play fake-rock
>>    down on the beach you had a winner  :-)
>>
>>    You CAN get very good sensitivity/selectivity
>>    using valve units. Often it's less a matter of
>>    the valves but instead tighter 'Q' in the
>>    supporting circuits.
>>
> Physically bigger coils. Point being that beyond a certain point you 
> start to degrade the audio. For the sake of kicking out the adjacent 
> channel

   ALWAYS trade-offs !

   Anyway, better support circuitry WILL yield
   superior performance. Valves or transistors,
   no diff really.

   Transistors became smaller/cheaper ... soon
   became "cheats" for crap RF engineering.

>>    As the price of transistors dropped, they became
>>    almost a sort of 'cheat' - a way to hide poor
>>    overall design. "Just slap another stage in there !"
> 
> Many chinese style designs said '9 transistor' and when you looked at 
> the circuit, 3 of them were duds, just soldered in the board but not 
> connected to anything...

   OK ... just Weird.

> ...Marketing. Imagine Intel marketing its latest chip 'over a billion 
> transistors'

   Well ... 1 billion may not be much better
   than 1 million IF ....

   DO have great respect for those old CPUs.
   Got SO much done with so little !

   Look into the ARMs.

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#71933

On 2025-08-22 15:41, c186282 wrote:
> On 8/21/25 6:28 AM, Carlos E.R. wrote:
>> On 2025-08-21 08:52, Lawrence D’Oliveiro wrote:
>>> On Wed, 20 Aug 2025 15:30:45 -0000 (UTC), John McCue wrote:
>>>
>>>>> It used four Texas Instruments germanium transistors and sold for US
>>>>> $49.95 - a fair chunk of change back in the day. Depending on how you
>>>>> calc inflation the price would now be about US $500.
>>>>
>>>> wow
>>>
>>> You can see why the Americans never had any luck with transistor-based
>>> consumer electronics -- it took the Japanese to make a success of that.
>>
>> My parents bought this one:
>> <https://www.radiomuseum.org/r/sanyo_9_transistor_9f_823.html>
>>
>> The leather case is in bad shape, the leader is hard and bent.
>>
>> It was for many years the only FM radio in the house. The normal house 
>> radio was a valve unit, and it only had AM.
> 
>    Similar in my house, the main unit was all valves,
>    AM only. Surprisingly good sound.
> 
>    Of course we didn't HAVE a local FM station for
>    quite awhile ... and when we did it was 95%
>    very dull classical.

Most talk radio was AM, anyway. And with Franco we could not create 
stations freely, that came later with democracy, after 1976.

We had an FM station with classical music some 45 Km away, in the 
provincial capital. Even when my parents bought a nice stereo system, 
that station was a bit noisy, spoiling the joy. And there were other 
stations, I don't know where, that had "modern" music which I did not like.

It was later that "talk" FM stations appeared, in the 80's. And now at 
least one of those networks is killing their AM transmitters. Pity, 
there are rural and mountainous areas where FM reception is bad. They 
tell people to use an Android App instead (with registration!).



>> I got this one when I went to uni:
>>
>> <https://www.etsy.com/es/listing/1791229461/vintage-sanyo-transistor- 
>> radio-amfm> 
> 
>    I remember those !  :-)
> 
>    Alas most of those little old radios had rather
>    poor sensitivity plus poor selectivity.
> 
>    BUT, they were PORTABLE.


The dial wheel was direct drive, not easy to tune :-)

I rigged a DC connector on the side, connected to the battery case, and 
built a power supply (which still works). Otherwise, batteries did not 
last much. The radio itself should be somewhere in the house, lost.


-- 
Cheers, Carlos.

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#71970

On Fri, 22 Aug 2025 20:35:53 +0200, Carlos E.R. wrote:

> We had an FM station with classical music some 45 Km away, in the
> provincial capital. Even when my parents bought a nice stereo system,
> that station was a bit noisy, spoiling the joy.

In the tropics, we had frequent thunderstorms.

One occasional side-effect, which I noticed more than once after a 
thunderstorm, was the ability to receive TV stations (very noisily and 
poorly) from well outside the normal range.

We didn’t get FM radio until later, so I can’t recall getting the same 
effect with that (though I’m sure it would have applied).

> It was later that "talk" FM stations appeared, in the 80's. And now at
> least one of those networks is killing their AM transmitters. Pity,
> there are rural and mountainous areas where FM reception is bad. They
> tell people to use an Android App instead (with registration!).

No plans to repurpose the MW band for digital radio?

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#71972

On 2025-08-23 00:26, Lawrence D’Oliveiro wrote:
> On Fri, 22 Aug 2025 20:35:53 +0200, Carlos E.R. wrote:
> 
>> We had an FM station with classical music some 45 Km away, in the
>> provincial capital. Even when my parents bought a nice stereo system,
>> that station was a bit noisy, spoiling the joy.
> 
> In the tropics, we had frequent thunderstorms.
> 
> One occasional side-effect, which I noticed more than once after a
> thunderstorm, was the ability to receive TV stations (very noisily and
> poorly) from well outside the normal range.
> 
> We didn’t get FM radio until later, so I can’t recall getting the same
> effect with that (though I’m sure it would have applied).
> 
>> It was later that "talk" FM stations appeared, in the 80's. And now at
>> least one of those networks is killing their AM transmitters. Pity,
>> there are rural and mountainous areas where FM reception is bad. They
>> tell people to use an Android App instead (with registration!).
> 
> No plans to repurpose the MW band for digital radio?

I don't think so, I have not heard of that. There is digital radio, 
DAB/DAB+, but they are using other bands.

-- 
Cheers, Carlos.

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#71974

On Sat, 23 Aug 2025 01:29:48 +0200, Carlos E.R. wrote:

> On 2025-08-23 00:26, Lawrence D’Oliveiro wrote:
>>
>> No plans to repurpose the MW band for digital radio?
> 
> I don't think so, I have not heard of that. There is digital radio,
> DAB/DAB+, but they are using other bands.

There is a different kind of digital encoding designed for SW and MW 
bands, called “DRM” (“Digital Radio Mondiale”).

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#72020

On 23/08/2025 00:29, Carlos E.R. wrote:
> On 2025-08-23 00:26, Lawrence D’Oliveiro wrote:

>> No plans to repurpose the MW band for digital radio?
> 

It was what was used for ADSL

There simply is not the bandwidth for much information.

Cf Shannon, et al.

> I don't think so, I have not heard of that. There is digital radio, 
> DAB/DAB+, but they are using other bands.
> 
Above about 50Mhz there is room for quite a bit of audio.

Digital TV etc is up in the hundderds of MegaHertz, and poper digital 
stuff like yet cell phone is about 3-30Ghz.

Which is why optical fibre is used ratger than radio. Light is quite a 
bit higher in frequency

-- 
Climate Change: Socialism wearing a lab coat.

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#72025

On Sat, 23 Aug 2025 11:01:02 +0100, The Natural Philosopher wrote:

> On 23/08/2025 00:29, Carlos E.R. wrote:
>>
>> On 2025-08-23 00:26, Lawrence D’Oliveiro wrote:
> 
>>> No plans to repurpose the MW band for digital radio?
>> 
> There simply is not the bandwidth for much information.

Enough for the same number of stations that were broadcasting in AM, only 
in better-than-FM quality.

> Cf Shannon, et al.

The audible human audio spectrum covers 20kHz. Plenty of stations can be 
squeezed in with that spacing.

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#72003

On Fri, 22 Aug 2025 22:26:37 -0000 (UTC), Lawrence D’Oliveiro wrote:

> One occasional side-effect, which I noticed more than once after a
> thunderstorm, was the ability to receive TV stations (very noisily and
> poorly) from well outside the normal range.

I once picked up a Minnesota, iirc, FM station on the San Raphael Swell in 
Utah. It surprised the hell out of me because you can't pick up anything 
on that 108 mile stretch of scenery. Tropospheric ducting is a strange and 
wondrous thing. It didn't last long.

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#72024

On 23/08/2025 07:04, rbowman wrote:
> On Fri, 22 Aug 2025 22:26:37 -0000 (UTC), Lawrence D’Oliveiro wrote:
> 
>> One occasional side-effect, which I noticed more than once after a
>> thunderstorm, was the ability to receive TV stations (very noisily and
>> poorly) from well outside the normal range.
> 
> I once picked up a Minnesota, iirc, FM station on the San Raphael Swell in
> Utah. It surprised the hell out of me because you can't pick up anything
> on that 108 mile stretch of scenery. Tropospheric ducting is a strange and
> wondrous thing. It didn't last long.

What could be better than sitting in Eastern England watching the news 
in DUTCH


-- 
I was brought up to believe that you should never give offence if you 
can avoid it; the new culture tells us you should always take offence if 
you can. There are now experts in the art of taking offence, indeed 
whole academic subjects, such as 'gender studies', devoted to it.

Sir Roger Scruton

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#72075

On Sat, 23 Aug 2025 11:16:12 +0100, The Natural Philosopher wrote:

> On 23/08/2025 07:04, rbowman wrote:
>> On Fri, 22 Aug 2025 22:26:37 -0000 (UTC), Lawrence D’Oliveiro wrote:
>> 
>>> One occasional side-effect, which I noticed more than once after a
>>> thunderstorm, was the ability to receive TV stations (very noisily and
>>> poorly) from well outside the normal range.
>> 
>> I once picked up a Minnesota, iirc, FM station on the San Raphael Swell
>> in Utah. It surprised the hell out of me because you can't pick up
>> anything on that 108 mile stretch of scenery. Tropospheric ducting is a
>> strange and wondrous thing. It didn't last long.
> 
> What could be better than sitting in Eastern England watching the news
> in DUTCH

Using Tor?  Usually it comes out of the rabbit hole speaking English but 
not always. 

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#72087

On 2025-08-23 12:16, The Natural Philosopher wrote:
> On 23/08/2025 07:04, rbowman wrote:
>> On Fri, 22 Aug 2025 22:26:37 -0000 (UTC), Lawrence D’Oliveiro wrote:
>>
>>> One occasional side-effect, which I noticed more than once after a
>>> thunderstorm, was the ability to receive TV stations (very noisily and
>>> poorly) from well outside the normal range.
>>
>> I once picked up a Minnesota, iirc, FM station on the San Raphael 
>> Swell in
>> Utah. It surprised the hell out of me because you can't pick up anything
>> on that 108 mile stretch of scenery. Tropospheric ducting is a strange 
>> and
>> wondrous thing. It didn't last long.
> 
> What could be better than sitting in Eastern England watching the news 
> in DUTCH

We got sometimes the Italian TV in Spain. In the VHF band specially, 
IIRC. But it came as interference over what we really wanted to watch.

-- 
Cheers, Carlos.

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#72114

On 8/23/25 6:16 AM, The Natural Philosopher wrote:
> On 23/08/2025 07:04, rbowman wrote:
>> On Fri, 22 Aug 2025 22:26:37 -0000 (UTC), Lawrence D’Oliveiro wrote:
>>
>>> One occasional side-effect, which I noticed more than once after a
>>> thunderstorm, was the ability to receive TV stations (very noisily and
>>> poorly) from well outside the normal range.
>>
>> I once picked up a Minnesota, iirc, FM station on the San Raphael 
>> Swell in
>> Utah. It surprised the hell out of me because you can't pick up anything
>> on that 108 mile stretch of scenery. Tropospheric ducting is a strange 
>> and
>> wondrous thing. It didn't last long.
> 
> What could be better than sitting in Eastern England watching the news 
> in DUTCH

   Hey, see it as High Comedy  :-)

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#72049

On 2025-08-23, rbowman <bowman@montana.com> wrote:

> On Fri, 22 Aug 2025 22:26:37 -0000 (UTC), Lawrence D’Oliveiro wrote:
>
>> One occasional side-effect, which I noticed more than once after a
>> thunderstorm, was the ability to receive TV stations (very noisily and
>> poorly) from well outside the normal range.
>
> I once picked up a Minnesota, iirc, FM station on the San Raphael Swell in 
> Utah. It surprised the hell out of me because you can't pick up anything 
> on that 108 mile stretch of scenery. Tropospheric ducting is a strange and 
> wondrous thing. It didn't last long.

I had a 6-transistor AM radio of the kind common in those days
(about 2x4x7 inches, complete with leather case).  Late at night
I'd see how distant a station I could pull in from our home near
Vancouver, B.C.  KSL in Salt Lake City would come booming in
regularly.  But I would spent hours listening to static-filled
signals trying to pick out station IDs that I could look up.
I once got KVOO in Tulsa, Oklahoma.  But my best was when
after listening to a noisy signal for a while, I picked up
the jingle: "W-O-W-O... in Fort Wayne" (Indiana).

And then I got into short wave...

-- 
/~\  Charlie Gibbs                  |  Growth for the sake of
\ /  <cgibbs@kltpzyxm.invalid>      |  growth is the ideology
 X   I'm really at ac.dekanfrus     |  of the cancer cell.
/ \  if you read it the right way.  |    -- Edward Abbey

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#72122

On 8/23/25 2:02 PM, Charlie Gibbs wrote:
> On 2025-08-23, rbowman <bowman@montana.com> wrote:
> 
>> On Fri, 22 Aug 2025 22:26:37 -0000 (UTC), Lawrence D’Oliveiro wrote:
>>
>>> One occasional side-effect, which I noticed more than once after a
>>> thunderstorm, was the ability to receive TV stations (very noisily and
>>> poorly) from well outside the normal range.
>>
>> I once picked up a Minnesota, iirc, FM station on the San Raphael Swell in
>> Utah. It surprised the hell out of me because you can't pick up anything
>> on that 108 mile stretch of scenery. Tropospheric ducting is a strange and
>> wondrous thing. It didn't last long.
> 
> I had a 6-transistor AM radio of the kind common in those days
> (about 2x4x7 inches, complete with leather case).  Late at night
> I'd see how distant a station I could pull in from our home near
> Vancouver, B.C.  KSL in Salt Lake City would come booming in
> regularly.  But I would spent hours listening to static-filled
> signals trying to pick out station IDs that I could look up.
> I once got KVOO in Tulsa, Oklahoma.  But my best was when
> after listening to a noisy signal for a while, I picked up
> the jingle: "W-O-W-O... in Fort Wayne" (Indiana).
> 
> And then I got into short wave...


   "Skip" COULD get you there ... across
   the world. All fascinating.

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#72193

On Sun, 24 Aug 2025 03:51:42 -0400, c186282 wrote:

>    "Skip" COULD get you there ... across the world. All fascinating.

Or nowhere.

https://solar.w5mmw.net/

Cycle 25 is doing a little better than predicted, Looks like 11 meters 
(aka CB) is damped down if anybody uses it any more. 

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#71954

On Fri, 22 Aug 2025 09:41:33 -0400, c186282 wrote:

>    Of course we didn't HAVE a local FM station for quite awhile ... and
>    when we did it was 95% very dull classical.

The first CDs were much the same, classical stuff for audiophiles. It 
didn't take long for sex, drugs, and rock'n'roll to subvert the media. 

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#71963

On 22/08/2025 20:48, rbowman wrote:
> On Fri, 22 Aug 2025 09:41:33 -0400, c186282 wrote:
> 
>>     Of course we didn't HAVE a local FM station for quite awhile ... and
>>     when we did it was 95% very dull classical.
> 
> The first CDs were much the same, classical stuff for audiophiles. It
> didn't take long for sex, drugs, and rock'n'roll to subvert the media.

That ain't subversion,. That's enhancement

-- 
It is the folly of too many to mistake the echo of a London coffee-house 
for the voice of the kingdom.

Jonathan Swift

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