David Crump (@davegkq) 's Twitter Profile
David Crump

@davegkq

ID: 1142136426

calendar_today02-02-2013 10:51:28

261 Tweet

630 Followers

70 Following

David Crump (@davegkq) 's Twitter Profile Photo

On my way to represent ⁦BATC Online⁩ at HamRadio Friedrichshafen. Please stop by our stand in Hall A1 if you have questions about the Portsdown or Ryde, or general questions about using the ⁦Raspberry Pi⁩ or ⁦Lime Micro⁩ devices for Amateur TV

On my way to represent ⁦<a href="/BATCOnline/">BATC Online</a>⁩ at HamRadio Friedrichshafen. Please stop by our stand in Hall A1 if you have questions about the Portsdown or Ryde, or general questions about using the ⁦<a href="/Raspberry_Pi/">Raspberry Pi</a>⁩ or ⁦<a href="/LimeMicro/">Lime Micro</a>⁩ devices for Amateur TV
BATC Online (@batconline) 's Twitter Profile Photo

All BATC members should have received an email with details of how to join the Zoom stream for CAT22 part two on Saturday. The talks are also going to be streamed batc.org.uk/live/cat22 and will appear on the club’s YouTube channel later next week if you are unable to watch live

All BATC members should have received an email with details of how to join the Zoom stream for CAT22 part two on Saturday. The talks are also going to be streamed batc.org.uk/live/cat22 and will appear on the club’s YouTube channel later next week if you are unable to watch live
David Crump (@davegkq) 's Twitter Profile Photo

Well worth waiting in the queue for the ⁦Raspberry Pi⁩ pop-up shop. Bought 2 Picos and gave a demo of the ⁦BATC Online⁩ Portsdown Amateur TV transceiver to the Raspberry Pi team

Well worth waiting in the queue for the ⁦<a href="/Raspberry_Pi/">Raspberry Pi</a>⁩ pop-up shop. Bought 2 Picos and gave a demo of the ⁦<a href="/BATCOnline/">BATC Online</a>⁩ Portsdown Amateur TV transceiver to the Raspberry Pi team
Daniel Estévez (@ea4gpz) 's Twitter Profile Photo

In this case the other stations rob a lot of power from the beacon, decreasing the transponder gain by 3.5 dB compared to an idle transponder, and greatly changing the power distribution from what I showed in the previous post. Read more: destevez.net/2023/04/more-a… (2/2)

In this case the other stations rob a lot of power from the beacon, decreasing the transponder gain by 3.5 dB compared to an idle transponder, and greatly changing the power distribution from what I showed in the previous post.
Read more: destevez.net/2023/04/more-a…
(2/2)
David Crump (@davegkq) 's Twitter Profile Photo

Great to see that 2 of the honourable mentions in the RSGB Construction Competition Excellence Category were for the Raspberry Pi based BATC Online Portsdown Amateur TV transmitter/receiver

icom_uk (@icom_uk) 's Twitter Profile Photo

We have just added a new video to our YouTube channel: 'Reviewing the Icom IC-905 SHF/VHF/UHF All Mode Transceiver': youtu.be/0yLnjeEGx2s #icom #hamradio #Amateurradio #ic905

We have just added a new video to our YouTube channel: 'Reviewing the Icom IC-905 SHF/VHF/UHF All Mode Transceiver': youtu.be/0yLnjeEGx2s

#icom #hamradio #Amateurradio #ic905
David Crump (@davegkq) 's Twitter Profile Photo

Testing the icom_uk IC-905 on 23 cm FM ATV with G4KLB through GB3SQ this evening. The video level was a bit lower than GB3SQ was set to receive but it certainly worked. Look out for the review in RSGB RadCom and further technical details on BATC Online CQ-TV

Testing the <a href="/Icom_UK/">icom_uk</a> IC-905 on 23 cm FM ATV with <a href="/g4_klb/">G4KLB</a> through GB3SQ this evening.  The video level was a bit lower than GB3SQ was set to receive but it certainly worked.  Look out for the review in <a href="/theRSGB/">RSGB</a> RadCom and further technical details on <a href="/BATCOnline/">BATC Online</a> CQ-TV
David Crump (@davegkq) 's Twitter Profile Photo

I've just added support for the SDRPlay RSPdx to the @batconline Portsdown equipment. Spectrum and waterfall BandViewer for portable operation using a Raspberry Pi 4 and a 7 inch touchscreen. Software build here github.com/BritishAmateur…

I've just added support for the <a href="/SDRPlay/">SDRPlay</a> RSPdx to the @batconline Portsdown equipment.  Spectrum and waterfall BandViewer for portable operation using a Raspberry Pi 4 and a 7 inch touchscreen. Software build here github.com/BritishAmateur…
David Crump (@davegkq) 's Twitter Profile Photo

Portable Amateur TV on 24 GHz this morning with ⁦Noel Matthews⁩ and G4LDR. Best DX was G4FRE at 94 km. G4LDR also managed a 47 GHz CW contact over the same distance. ⁦BATC Online⁩ ⁦RSGB

Portable Amateur TV on 24 GHz this morning with ⁦<a href="/G8GTZ/">Noel Matthews</a>⁩ and G4LDR. Best DX was G4FRE at 94 km. G4LDR also managed a 47 GHz CW contact over the same distance. ⁦<a href="/BATCOnline/">BATC Online</a>⁩ ⁦<a href="/theRSGB/">RSGB</a>⁩
David Crump (@davegkq) 's Twitter Profile Photo

24 GHz testing in the sunshine this morning with G4NNS. Only 56 km, but massive signals, so we know that the new Wavelab unit works well. ⁦UK Microwave Group⁩ ⁦RSGB

24 GHz testing in the sunshine this morning with G4NNS. Only 56 km, but massive signals, so we know that the new Wavelab unit works well. ⁦<a href="/UKGHZ/">UK Microwave Group</a>⁩ ⁦<a href="/theRSGB/">RSGB</a>⁩