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| Subject: | LF: Re: Variometer |
| From: | "Alan Melia" <[email protected]> |
| Date: | Wed, 20 Oct 2010 10:03:51 +0100 |
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Hi Chris that unit looks rather like the pictures of Steve GW3ALGs variometer (others made similar units....the lego remote control rings bells) which has featured in the LF Handbook and both editions of LF Today. If so Steve used a modifieed KW1000 linear I believe which was capable of putting out quite a lot of power. Steve ran a 20m vertical with the top 10m supported by party ballooons when the wind was suitably low. If it was put below his main fixed loading coil as an incremental inductor then it would not have had to suffer such high voltages as at the main coil top. Alan G3NYK ----- Original Message ----- From: "Chris" <[email protected]> To: "RSGB LF Group" <[email protected]> Sent: Wednesday, October 20, 2010 8:31 AM Subject: LF: Variometer Hi LF, Need a variometer? Take a look at Ebay item 120636022163. The claim is this item can cope with 'over a kW of RF' and covers 136kHz - I must say I have my doubts! At least you can have a laugh at the 'amature' spelling and terminology throughout!! Vy 73, Chris, G4AYT, Whitstable, Kent. |
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