F1CBC (@F1CBC) header
F1CBC (@F1CBC) profile picture

F1CBC

@F1CBC

French Amateur Radio Operator since 1972. QRV : HF, VHF, UHF, SHF.....UKAC and NAC Activity....

 Cauville-sur-Mer, France... JN09BO...Nor…
Joined July 2012
  • Tweets2.9K
  • Following508
  • Followers834
1.2KMedia
Photo by F1CBC (@F1CBC)Photo by F1CBC (@F1CBC)Photo by F1CBC (@F1CBC)Photo by F1CBC (@F1CBC)Photo by F1CBC (@F1CBC)Photo by F1CBC (@F1CBC)Photo by F1CBC (@F1CBC)Photo by F1CBC (@F1CBC)Photo by F1CBC (@F1CBC)Photo by F1CBC (@F1CBC)
F1CBC retweeted
RSGB (@theRSGB) profile picture
RSGB
@theRSGBNov 6
Contests this week include: 👉The WAB DX Contest 👉The RSGB VHF 144MHz CW Marconi Contest 👉The RSGB VHF 432MHz MF Activity Contest 👉The RSGB VHF 432MHz UK Activity Contest 👉The RSGB VHF 432MHz FT8 four-hour Activity Contest 👉The RSGB VHF 432Mhz FT8 two-hour Activity Contest 👉The RSGB HF Autumn Series SSB Contest 👉The RSGB VHF 50MHz UK Activity Contest 👉The RSGB HF Club Calls 1.8MHz Contest For full details visit: rsgb.org/main/gb2rs/contest-… #amateurradio #hamr
Image from RSGB (@theRSGB)
4
8
534
F1CBC retweeted
RSGB (@theRSGB) profile picture
RSGB
@theRSGBOct 17
Contests this week include: 👉The RSGB 1.3GHz UK Activity Contest 👉The IRTS 80m Evening Counties Contest 👉The RSGB HF Autumn Series SSB Contest 👉The CQ WW DX SSB Contest 👉The UK Microwave Group EHF Band Contest For full details visit: rsgb.org/main/gb2rs/contest-… #amateurradio #hamr
Image from RSGB (@theRSGB)
1
6
536
F1CBC retweeted
RSGB (@theRSGB) profile picture
RSGB
@theRSGBOct 13
Contests this week include: 👉The RSGB 432MHz FMAC Contest 👉The RSGB 432MHz UK Activity Contest 👉The RSGB 432MHz FT8 Activity four-hour Contest 👉The RSGB 432MHz FT8 Activity two-hour Contest 👉The RSGB HF Autumn Series DATA Contest 👉The RSGB 70MHz UKAC Contest 👉The Worked All Germany Contest For full details visit: rsgb.org/main/gb2rs/contest-… #amateurradio #hamr
Image from RSGB (@theRSGB)
2
9
527
F1CBC retweeted
RSGB (@theRSGB) profile picture
RSGB
@theRSGBOct 2
Contests this week include: 👉The RSGB and IARU October 432MHz to 245GHz Contests 👉The UK Microwave Group Millimetre Band Contest 👉The Autumn Series CW Contest 👉The RSGB 144MHz FMAC Contest 👉The RSGB 144MHz UKAC Contest 👉The RSGB 144MHz FT8 four hour Contest 👉The RSGB 144MHz FT8 AC Contest 👉The UKEICC 80m Contest 👉The RSGB 50MHz UKAC Contest 👉The Oceania DX CW Contest For full details visit: rsgb.org/main/gb2rs/contest-… #amateurradio #hamr
Image from RSGB (@theRSGB)
1
2
500
軍用VHF帯レーダー／電子戦用アレイアンテナ 8輪駆動の大型トラックに搭載された可搬型システム。多数の素子を格子状のブームに並べた構造。 🎥Source : Remote SP
19
59
4
475
32,076
F1CBC retweeted
hackaday (@hackaday) profile picture
hackaday
@hackadaySep 19
The Concertina Goes Electronic ift.tt/S0KDZCA
The Concertina Goes Electronic

The Concertina Goes Electronic

The concertina is an instrument that features heavily in European folk music, of which there are a variety of types. [Xcott Craver] has built one, an anglo concertina of the type you may recognise …

hackaday.com
2
3
6
7,371
F1CBC retweeted
RayPCB (@RaymingTech) profile picture
RayPCB
@RaymingTechAug 31
Why Minor Details Determine Success in High-Frequency Connectivity In RF engineering, everything is a trade-off. This morning, I reviewed a custom cable assembly for a UAV telemetry link. The customer was concerned about signal drop-outs at 5.8 GHz. Many would have suggested swapping out the cable. But we looked deeper—into the connector interface. A poorly seated PTFE insulator or a slight misalignment in the center contact can create an impedance mismatch that no software algorithm can fix. By holding a mechanical tolerance of ±0.02 mm and using high-purity brass with a controlled plating thickness, we stabilized the VSWR and kept the project on track. After 10+ years in this industry, one thing is clear: the signal doesn’t lie. Quality lives in the microns. To my fellow RF FAEs and developers—what’s the strangest signal issue you’ve ever traced back to a physical connector?
Image from RayPCB (@RaymingTech)
27
185
5,616
F1CBC retweeted
iPaul (@iPaulCanada) profile picture
iPaul
@iPaulCanadaJul 22
2026世界人工智能大会，某科技公司展示的跨时代教具--AI黑板
1,145
7,211
1,168
44,798
8,000,388
F1CBC retweeted
HB9FUE (@HbHs0) profile picture
HB9FUE@HbHs0Jan 8
Int.emergency call frequencies 160m 1,873 MHz LSB /IARU 80m 3,760 MHz LSB / IARU 40m 7,110 MHz LSB / IARU 30m 10,138 MHz USB / IARU 20m 14,300 MHz USB / IARU 17m 18,160 MHz USB / IARU 15m 21,360 MHz USB / IARU 2m 144,260 MHz USB / 145,500 MHz FM 70cm 434,000 MHz FM. #hamradio
Image from HB9FUE (@HbHs0)
10
111
4
466
29,208
Button cell battery names are actually codes include the chemistry, shape, diameter and thickness. CR2032 is C lithium, R round, 20mm diamter, 3.2mm thick
Image from World of Engineering (@engineers_feed)
80
464
53
3,701
391,722
Tonight, we may see a strong geomagnetic storm and auroral visibility extending further equatorward into the central U.S. Let me tell you what is happening, who will see aurora and when, and some tips for catching the aurora tonight! This could potentially be a nice event! 🧵
Image from Vincent Ledvina (@Vincent_Ledvina)
15
145
19
768
57,395
IMAGE DU JOUR !
Pierre Lespick (@LespickP) profile picturePierre Lespick@LespickP19 Oct 2025
Replying to @PsyGuy007 @FilRouge06
@PsyGuy007 @FilRouge06
Image from Pierre Lespick (@LespickP)
126
1,476
29
3,796
134,060
Fun fact. Voyager 1, currently over 15 billions miles away (roughly 2.5 light hours), still operates using 69 KB of memory, 8 track tape and Fortran code written in 1977.
Image from Massimo (@Rainmaker1973)
256
986
78
6,213
327,364
F1CBC retweeted
RSGB (@theRSGB) profile picture
RSGB
@theRSGB9 Oct 2025
Contests taking place over the next week include: 👉 The RSGB 432MHz FM Activity Contest 👉 The RSGB 432MHz UK Activity Contest 👉 The RSGB Autumn Series Data Contest 👉 The RSGB 70MHz UK Activity Contest 👉 The RSGB 50MHz Affiliated Societies Contest 👉 The Oceania DX CW Contest 👉 The Worked All Germany Contest For full details visit: rsgb.org/main/gb2rs/contest-… #amateurradio #hamr
Image from RSGB (@theRSGB)
2
3
6
570
F1CBC retweeted
RSGB (@theRSGB) profile picture
RSGB
@theRSGB26 Sep 2025
Contests coming up over the next week include: 👉 The CQ World Wide DX RTTY Contest 👉 The UK Microwave Group 5.7 and 10GHz Contest 👉 The RSGB 144MHz FT8 Activity four-hour Contest 👉 The RSGB 144MHz FT8 Activity two-hour Contest 👉 The United Kingdom and Ireland Contest Club 80m Contest 👉 The Oceania DX SSB Contest 👉 The RSGB 2.3GHz Trophy Contest 👉 The RSGB 1.2GHz Trophy Contest 👉 The IARU and RSGB 432MHz to 245GHz Contests 👉 The UK Microwave Group 24 to 76GHz Contest For full details visit: rsgb.org/main/gb2rs/contest-… #amateurradio #hamr
Image from RSGB (@theRSGB)
3
13
614
F1CBC retweeted
RSGB (@theRSGB) profile picture
RSGB
@theRSGB12 Sep 2025
Contests this week include: 👉The UK Microwave Group 24 to 76GHz Contest 👉The Practical Wireless 70MHz Contest 👉The IRTS 70cm Counties Contest 👉The IRTS 2m Counties Contest 👉The RSGB FT4 Series Contest 👉The RSGB 1.3GHz UK Activity Contest 👉The RSGB 70MHz UK Activity Contest 👉The RSGB 70MHz Affiliated Societies Contest 👉The British Amateur Radio Teledata Group Sprint PSK63 Contest For full details visit: rsgb.org/main/gb2rs/contest-… #amateurradio #hamr
Image from RSGB (@theRSGB)
1
5
543
RF Analyzer V2.0 Released: RTL-SDR Compatible Android App rtl-sdr.com/rf-analyzer-v2-0…
Image from rtl-sdr.com (@rtlsdrblog)
2
59
3
329
16,234
F1CBC retweeted
Tτ (@teraytech) profile picture
Tτ@teraytech22 Aug 2025
Microstrip filters project PCB and test data files are now accessible on my github. Have fun😇github.com/TerayTech/microst…
Image from Tτ (@teraytech)
6
27
6
247
21,105
F1CBC retweeted
RSGB (@theRSGB) profile picture
RSGB
@theRSGB15 Aug 2025
Contests this week include: 👉The RSGB 1.3GHz UK Activity Contest 👉The 70MHz UK Activity Contest 👉The UK Microwave Group 5.7 and 10GHz Contest For full details visit: rsgb.org/main/gb2rs/contest-… #amateurradio #hamr
Image from RSGB (@theRSGB)
1
2
6
519
F1CBC retweeted
RSGB (@theRSGB) profile picture
RSGB
@theRSGB9 Aug 2025
Contests this week include: 👉 The Worked All Europe DX CW Contest 👉The RSGB Machine Generated Modes Contest 👉The RSGB 432MHz FM Activity Contest 👉The RSGB 432MHz UK Activity Contest 👉The RSGB 432MHz FT8 Activity four-hour Contest 👉The 432MHz FT8 Activity two-hour Contest 👉The RSGB 50MHz UK Activity Contest For full details visit: rsgb.org/main/gb2rs/contest-… #amateurradio #hamr
Image from RSGB (@theRSGB)
1
2
1
12
633
Load more