This caught my attention — the fact that the BBC long wave frequency was extremely precise (mentioned around 6:30). It is said that the bbc long wave radio4 transmission (droitwich?) was so extremely accurate in frequency that it was often used as a frequency-standard.
Yes — broadly true.
BBC Radio 4 long wave from Droitwich transmits on 198 kHz. Historically it was held to a very accurate carrier frequency because long-wave national broadcast transmitters were locked to high-stability standards, and the signal was strong and widely receivable across the UK. That made it a convenient off-air frequency reference for labs, radio amateurs, frequency counters, calibration checks, and synchronous clocks.
A few nuances:
- Earlier Radio 4 LW was 200 kHz, later changed to 198 kHz.
- The usefulness was mainly as a frequency standard, not a precision time standard like MSF/DCF77/GPS.
- “Extremely accurate” is relative: excellent for everyday and many technical calibration purposes, but not comparable to modern GPS-disciplined or atomic standards.
- Droitwich’s 198 kHz carrier was famously stable enough that some equipment and monitoring systems treated it as a trusted reference.
- The phrase often comes up because the transmitter’s frequency stability mattered for things like teleswitching, radio-controlled electricity meters, and off-air locking.
So: yes, Droitwich Radio 4 LW was commonly regarded as a very accurate and practical frequency reference, especially in the pre-cheap-GPS era.
I am a retired American Broadcast Engineer of fifty years service. The demise of LW broadcasting saddens me profoundly. We didn’t broadcast on the longwave band in the US, but I’ve listened to faraway LW stations on my 1957 vintage Telefunken Hymnus receiver since I was a youngster in the 50s and 60s. There was something magical about what thousands of miles of multi-hop propagation did to those signals. There were the ‘spherics’, like the crackle of lightning on the other side of the planet or the eerie whistles and pops of the solar wind smacking the ionosphere. The most heavenly effect however, was the constant etherial swishing and phasing of the audio, caused by random phase shifting throughout the signal’s long journey. I often heard the same tropospheric distortion when listening to distant American MW (540-1600 kHz) AM stations at night, but after more than a century, those too are fading into my distant past, along with the entire band. Pity.
Long-wave has never been ‘scratchy’ on any one of my vintage wireless sets…
I’ve received 198khz LW here a couple of times in NSW Australia. Very faint but you could hear the talk & time pips on the hour.
I used to listen whilst driving up and down the M1. FM was totally useless and kept needing retuning but long wave reception was always reliable.
I used Radio 4 Long Wave to listen to the Shipping Forecast, often on a boat, especially in remote parts of Ireland and Scotland, where FM and mobile signals are not available. At other times I enjoyed the Wimbldeon commentary which I think was on LW only. I think LW and Radio generally should be funded by the tax payer and outside the BBC.
https://en.wikipedia.org/wiki/Droitwich_Transmitting_Station
https://www.google.com/maps/place/Droitwich+Transmitting+Station/@52.2966703,-2.1078529,694m
PROMPT: i am looking at the downing of lw droitwich and radio4 as some kind of removal of frequency standard from the technical universe. i understand the broadcaster / tower owner shutting down, but there may be an ulterior motive. is there some degradation caused by the downing of lw having such high accuracy?
Yes, there is a real degradation, but probably not a strategic removal of a critical frequency standard.
What is lost if Droitwich LW / Radio 4 LW goes off-air?
A very convenient, high-power, wide-area 198 kHz reference carrier disappears.
That matters to:
- radio amateurs / metrology hobbyists
- old frequency counters and calibration setups
- some labs using it as a sanity check
- legacy off-air locked equipment
- long-wave propagation monitoring
- historically, teleswitching / electricity meter control systems So in that sense: yes, one more elegant public “frequency ruler in the sky” is removed.
But is the technical universe meaningfully degraded?
Only slightly. Today, much better or comparable references exist:
- GPS disciplined oscillators: excellent long-term frequency/time
- GNSS generally: GPS, Galileo, GLONASS, BeiDou
- MSF 60 kHz in the UK: official time/frequency signal from Anthorn
- DCF77 in Germany, WWVB in the US, etc.
- rubidium / OCXO lab standards
- fibre/distributed timing in serious infrastructure
- NTP/PTP for less demanding digital systems So Droitwich LW is technically valuable, but not irreplaceable.
Why LW felt special
Droitwich was unusually simple: Receive one big analog carrier, compare your oscillator to it. No decoding, no satellite receiver, no internet, no subscriptions, no firmware stack. Just RF physics and a stable carrier.
That simplicity is the part being lost. GPS/GNSS is better metrologically, but it is more complex, more fragile to jamming/spoofing, and more dependent on opaque infrastructure.
Ulterior motive?
The mundane explanation is strong:
- old high-power LW transmitters are expensive
- valves / components are obsolete
- audience has collapsed
- energy cost is high
- BBC distribution has moved to FM/DAB/IP
- Radio Teleswitch Service dependency has been ending Could governments or institutions prefer fewer uncontrolled public reference signals? Maybe in the abstract. But Droitwich is not what prevents
control of timing/frequency infrastructure. Anyone who needs precision can use GNSS, MSF, local atomic/OCXO/Rb standards, or multiple independent
references.
Bottom line
The shutdown would remove a beautiful, robust, public, analog frequency standard from everyday reach.
That is a cultural and practical loss for technical people. But it is not a crippling metrology loss, and it does not obviously imply an ulterior motive. The real concern is broader: society keeps replacing simple, inspectable infrastructure with more complex, software-mediated, dependency-heavy systems.
PROMPT: so the gps and all the current remaining broadcasts rely upon more opaque/complex digital data embedded in perhaps a less-precise even sloppy carrier, would that be accurate? in other words, the time-standard accuracy itself is now removed from the carrier and encapsulated into a digital protocol. yes?
Mostly yes as a trend, but with an important correction:
The carrier is not necessarily “sloppy.” In GPS/GNSS, the RF carrier is also derived from extremely accurate satellite clock systems. But the user-facing time/frequency reference is not obtained by simply treating the carrier as a naked broadcast tone.
Better phrasing:
With old LW standards, the carrier itself was the simple observable standard. With GNSS and many modern systems, the standard is reconstructed through a protocol/receiver solution using codes, timing messages, clock corrections, and signal processing.
LW Droitwich-style reference
- Big analog carrier at, say, 198 kHz.
- Stability is directly visible as carrier stability.
- A receiver/counter/PLL can compare against it.
- The “standardness” is physically apparent in the transmitted sinewave.
GPS/GNSS
- The RF carriers are still highly disciplined.
- But the receiver does not just say “L1 carrier = my frequency standard.”
- It tracks:
- spread-spectrum digital codes
- satellite ephemeris
- clock correction data
- propagation delays
- Doppler shifts
- relativistic corrections
- Then it reconstructs time/frequency locally, usually via a GPSDO. So yes: the precision has moved from simple public carrier observability into a complex encoded system plus receiver algorithm.
Remaining time broadcasts
Depends which one. Some LF/VLF time services, e.g. MSF/DCF77/WWVB, still have highly controlled carriers, but their time information is digitally encoded by amplitude/phase modulation. You can often still use the carrier as a frequency reference, though modulation and propagation complicate it.
The real distinction
Not “analog accurate vs digital sloppy.”
More like:
Old LW carrier standard │ GNSS / modern timing
Directly observable carrier │ Reconstructed solution
Simple RF chain │ Complex receiver stack
Regional but robust │ Global but infrastructure-heavy
Easy to sanity-check │ More opaque
Lower ultimate capability │ Higher ultimate accuracy
So your thesis is basically right in spirit: the public, simple, analog frequency artifact is disappearing, replaced by more capable but more opaque systems.
This goes hand-in-hand with Digitalia (see also) and Redefinitions of Base Units / Metrology Meddlings.
PROMPT: the gps “time” is a derivative, in a sense, because it (time) is not gathered from the carrier; instead, ‘we take their word for it’ because the ‘time’ is encoded into a protocol. in other words, we are not measuring time ourselves, verifiably, but we take the already-encoded time for-granted as accurate. this represents a removal of verifiability, authenticity from simpler technical means; is this broadly accurate?
Broadly yes in spirit, but with technical nuance.
What is true
GPS time is not like “here is one public sinewave; measure its frequency directly.”
A GPS receiver reconstructs time from:
- digital PRN code timing
- navigation message data
- satellite clock corrections
- ephemeris/orbit data
- Doppler/carrier tracking
- propagation models
- multi-satellite consistency solving
So the final “time” output is a computed/decoded product, not a simple directly observable carrier standard.
That does move trust from: “I can compare my oscillator to this obvious physical carrier” toward: “my receiver, firmware, protocol, satellite data, and system operators are all behaving correctly.”
So yes: simplicity and independent verifiability are reduced.
But “we just take their word for it” is slightly too strong
A GPS receiver does measure real physical things:
- signal arrival times
- code phase
- carrier phase
- Doppler shifts
- consistency between multiple satellites
Bad data often becomes detectable because satellites disagree. Survey/geodetic receivers can also compare GPS, Galileo, GLONASS, BeiDou, local oscillators, and known positions.
So GPS is not pure assertion. It is a measurement system — but one where the measurement depends on a complex protocol and hidden infrastructure.
Authenticity point
This is where your concern is strongest.
Classic civilian GPS historically had limited cryptographic authentication. A receiver can be spoofed if an attacker presents a plausible stronger signal. Modern systems are improving this — e.g. Galileo OSNMA — but complexity increases further.
An analog LW carrier can also be spoofed or interfered with, but doing so over a large area at high power is harder and more obvious.
Core distinction
Your framing is broadly accurate if stated like this: The loss is not merely accuracy. The loss is directness. LW offered a simple, public, physically inspectable frequency artifact. GNSS offers superior accuracy, but through a more opaque computed trust chain.
So yes: shutting down accurate analog carriers contributes to a broader shift from directly measurable public standards to protocol-mediated, infrastructure-dependent standards.
The lessening of technicalia in any means represents a concerted “dumbing-down” and weakening of humanity. The undermining of core precepts counters the democratization of technology.
There’s a strong argument that retiring simple, inspectable technical infrastructure can reduce public technical agency. Phrase it carefully:
- Not all abstraction is dumbing-down: abstraction can democratize use by making tools accessible.
- But opaque abstraction without fallback, documentation, or independently measurable anchors does weaken technical culture.
- The loss is especially sharp when public systems move from:
- measurable → trust-mediated
- analog/direct → encoded/protocol-dependent
- repairable → sealed
- locally understandable → cloud/infrastructure-dependent
Droitwich LW as a frequency reference is a good symbol of that shift: not because GPS is worse technically, but because LW was legible. A technically curious person could observe, measure, lock to, and understand it with comparatively modest tools.
So yes: the broader pattern can counter natural democratization when society removes “low-level handholds” and leaves only black-box interfaces. The healthier path is not rejecting modern systems, but preserving public standards, open protocols, independent verification paths, and educational access to the underlying layers. In important cases, usually totally overlooked, unhealthiness prevails.
The Collapsing Inward to City/Population Centers
“I used Radio 4 Long Wave to listen to the Shipping Forecast, often on a boat, especially in remote parts of Ireland and Scotland, where FM and mobile signals are not available. At other times I enjoyed the Wimbldeon commentary which I think was on LW only. I think LW and Radio generally should be funded by the tax payer and outside the BBC.” this shows a ‘shrinking’ of communication; a deprivation of info to outliers, a collapsing inward to city/population-centers.
Yes — that quote captures a real infrastructure pattern:
long-range broadcast served geographic outliers cheaply and anonymously; its removal pushes people toward shorter-range, subscription/device/network-dependent systems.
For LW specifically:
- It reaches boats, islands, uplands, rural Scotland/Ireland, and poor mobile/FM areas.
- It works with simple receivers.
- It does not require account, SIM, data plan, app, GPS, or mast density.
- It is one-to-many: once transmitted, extra listeners cost almost nothing.
- It has civil-continuity value: weather, shipping, national announcements, shared public signal.
So the “shrinking” argument is fair: communication coverage collapses inward toward population density and commercial viability.
The counterargument is cost/usage: LW transmitters are expensive, aging, power-hungry, and fewer people use them. But that is exactly why your point lands politically: if judged only by market-style utilization, edge users are always first to be abandoned.
A strong formulation: The end of Radio 4 LW is not merely a media-format change. It marks the retirement of a public, low-tech, wide-area information layer whose value was greatest precisely where commercial networks are weakest.
And “outside the BBC” is also coherent: one could argue for a public-service resilience broadcaster funded as infrastructure, like lighthouses, weather warnings, or emergency services — not as entertainment media.
The Silencing
what other lw has gone silent? the interview mentions mostly dead-air and that bbc4 was the last remaining major presence on lw. is all else gone?
Not all LW is gone, but it is massively diminished. As of my reliable knowledge cutoff, BBC Radio 4 LW was among the last big, culturally visible LW services in western Europe, but not literally the only LW transmitter.
Examples of major LW closures/silences over recent years:
- France Inter 162 kHz / Allouis: regular radio programming ended in 2016. Carrier/time-signal functions continued separately.
- RTL 234 kHz / Beidweiler, Luxembourg: long-running major LW service; announced/underwent shutdown in the 2020s.
- Europe 1 183 kHz / Felsberg, Saarland: ended LW broadcasting in 2019.
- Deutschlandfunk 153 & 207 kHz: German LW closed end of 2014.
- RTE Radio 1 252 kHz / Clarkstown, Ireland: shutdown planned/implemented after long controversy over Irish diaspora listeners.
- Atlantic 252: closed long ago, 2002.
- Swiss / Norwegian / Swedish / many Eastern/Western European LW services: mostly gone over decades.
Still historically notable/possibly remaining depending current date/status:
- Poland Radio Jedynka 225 kHz / Solec Kujawski — one of the big remaining European LW broadcasters.
- Romania / Czech / Iceland / Mongolia / Algeria / Morocco / Russia-region services — some LW activity has persisted, but status changes frequently.
- Time-signal transmitters such as MSF/DCF77 are LF, not “broadcast radio” in the Radio 4 sense.
So the interview’s claim is broadly right if meant: BBC Radio 4 LW was one of the last major mass-audience long-wave broadcast presences in Europe/UK cultural life.
The LW band has become sparse: many channels are now dead air, carrier-only, utility/time-signal, or intermittent.
No — not all LW is gone, but the interview is broadly right for major Western European public/broadcast radio: it is now mostly dead air.
Major LW closures
Frequency │ Station │ Status
— 198 kHz │ BBC Radio 4 LW / Droitwich + relays │ Closed 27 Jun 2026
— 252 kHz │ RTÉ Radio 1 LW │ Closed 14 Apr 2023
— 234 kHz │ RTL France / Luxembourg │ Closed 1 Jan 2023
— 183 kHz │ Europe 1 │ Closed 2019
— 162 kHz │ France Inter │ Programming closed 2016; time-signal carrier remains
— 153/207 kHz │ Deutschlandfunk │ Closed end 2014
— 243 kHz │ DR Kalundborg, Denmark │ Closed 31 Dec 2023
— 189/207 kHz │ Iceland RÚV │ 207 closed 2023; 189 reportedly ended 2024
Still active / apparently active
Frequency │ Station / area │ Notes
— 225 kHz │ Polskie Radio Jedynka, Poland │ Major remaining LW broadcaster; listed active at high power
— 153 kHz │ Romania, Bod │ Appears active/listed for Antena Satelor, not necessarily Actualități
— Various │ Algeria / North Africa / Mongolia / parts of Asia │ LW still exists outside the BBC/RTE/RTL Western European pattern
— 162 kHz │ Allouis, France │ Not programme radio; time-signal service only
Bottom line
For a UK/Ireland listener, especially at sea, the LW dial has gone from a set of powerful public-service voices to mostly silence, carriers, fringe signals, or distant/non-European services.
So “BBC Radio 4 LW was the last major presence” is fair if “major presence” means: large, familiar, public-service, English-language / Western European mass-audience LW broadcasting.
It was not literally the last LW transmitter on Earth — but it was one of the last big culturally meaningful ones.
Wider plan to put down all MW mediuw wave transmitters also. https://www.youtube.com/watch?v=q-qrVQqbvPY