GB2RS News Script for 7 July 2019
Tap or click the link below to download this week’s GB2RS news script GB2RS News Script for 7 July 2019 (11-page/181KB Microsoft Word document)
Also in GB2RS this week…
Professor Cathryn Mitchell, M0IBG, academic director of the University of Bath Doctoral College and Trustee of the Radio Communications Foundation, has received the 2019 Edward Appleton Medal and Prize for her pioneering research in tomography and data assimilation. This revealed a completely new perspective on the ionosphere in response to extreme space weather. Read the […]
Award for Professor Cathryn Mitchell, M0IBG
Professor Cathryn Mitchell, M0IBG, academic director of the University of Bath Doctoral College and Trustee of the Radio Communications Foundation, has received the 2019 Edward Appleton Medal and Prize for her pioneering research in tomography and data assimilation. This revealed a completely new perspective on the ionosphere in response to extreme space weather. Read the […]
Rallies and Events News – 7 July 2019
This Sunday, 7 July, the Barford Norfolk Radio Rally will be held at Barford Village Hall and Green, Barford, Norwich NR9 4AB. Doors open at 9am, with talk-in on S22. There will be trade stands, a car boot sale, a bring-and-buy, raffle, repeater groups, catering and free car parking. Entry is £2 per person, with […]
DX News – 7 July 2019
Saty, JE1JKL will be active as 9M6NA from Labuan Island, East Malaysia, IOTA reference OC-133 between 11 and 16 July. He will concentrate on the 6m band using FT8. QSL via Logbook of The World and Club Log’s OQRS. Janusz, SP9FIH returns to Bethlehem in Palestine from the 6 July to 3 August. He will […]
Special Event News – 7 July 2019
GB1CMS will be operating this Sunday, 7 July, at a display of military vehicles and battle re-enactments located seven miles south of Dorking in Capel, Surrey. A listening watch will be maintained on 51.60MHz and a full list of frequencies can be found via tinyurl.com/yx92b4uy Grey Point Fort ARS will be open for visitors during […]
Contest News – 7 July 2019
The RSGB VHF National Field Day ends its 24 hour run at 1400UTC today, the 7th. Using all modes on the 50 to 1.3GHz bands, the exchange is signal report, serial number and locator. This Sunday, the 7th, the 3rd 2m Backpackers Contest runs from 1100 to 1500UTC. Using all modes, the exchange is signal […]
Propagation News – 7 July 2019
Good news—this week saw two sunspots appear from the upcoming solar cycle 25. We know this due to their magnetic polarity and locations close to the solar equator. Unfortunately, the sunspots didn’t last very long before vanishing. But it is a start. Earlier this year, an international panel of experts predicted that solar minimum would […]
News for Scotland – 7 July 2019
From this Sunday to next Sunday, Cockenzie and Port Seton Amateur Radio Club has activity days. More information from Bob, GM4UYZ, on 01875 811 723. Edinburgh and District Amateur Radio Club has its net on Monday. Next Saturday sees a social evening. Contact Norman, GM1CNH, on 0774 094 6192. On Tuesday Dundee Amateur Radio Club […]
Why Balance Batteries – Specifically Li-Po’s?
A question was raised at the Club recently as to why we balance Li-Po’s and not cells such as NiCad or NiMh’s?
I certainly knew it was ‘done-practice’ in order to obtain maximum performance from Li-Po’s, but why not do the same for other battery types?
There is a good write-up in Wikipedia (click the graphic) as to why this is done.
And – the bottom line – it appears, that it could be done with most types of battery packs, which in the end would improve their performance and extend their longevity – just as Li-Po’s.
So now you know!
Edit 05/07/19:
Following on from some questions raised on our Members Forum #73 – HERE is some additional information about Active Balancing and associated circuits, courtesy of Analog Devices.