To: rsgb_lf_group@blacksheep.org References: <000d01c47d73$a61f59c0$3ad1fc3e@l8p8y6> Date: Wed, 11 Aug 2004 22:44:20 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 X-SPF-Result: relay.thorcom.net: 213.36.80.91 is neither permitted nor denied by domain of tiscali.fr X-Spam-Score: 0.9 (/) X-Spam-Report: autolearn=no,HTML_30_40=0.809,HTML_MESSAGE=0.001,RCVD_IN_SORBS=0.1 Subject: LF: Re: HOT AIR Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Spam-Filtered: by PlusNet SpamCORE (v3.00) Content-transfer-encoding: 8bit

11./08/2004 2157z

Hello Mal,

My poor experiment with a kite is not very conclusive in RX mode...

The kite was 4.2 meter large ( delta design) in carbon fiber and spi snail.

The wire was 2 mm aluminium. At 110 meter AGL it is impossible to tune

the variometer correcctly during a long period ( capacity move too much).

But it's works fine if you want receive broadcast transmitter ( like France-inter

on 162 KHz with 2.2 MW or BBC...!) I never receive OM LF station with this

antenna ( intermodulations).

Never forget to put a resistor between the wire and the ground and don't use

wire with PE or PTFE, the voltage will be very high by dry wind ( many KV!).

My conclusion:funny but dangerous!

I thing that helium baloon is the same but more expensive...the wire is heavy

and a little one is too resistive and delicate.

Cheers: Jeff / F6CWN

----- Original Message -----

From: hamilton mal

To: rsgb_lf_group@blacksheep.org

Sent: Sunday, August 08, 2004 6:14 PM

Subject: LF: HOT AIR

There is plenty of this around on here!

I am thinking of building or buying a small hot air baloon. I thought if I could get a suitable design and materials I would attempt to build one and use say a primus stove or small gas bottled device to generate the hot air.

Has anyone tried this approach or got any ideas.

Instead of unstable kites or helium balloons, gas hard to get in large quantities. I thought a hot air tethered balloon might be the approach.

Your comments good or bad. I am not easily upset.

de Mal/G3KEV