Search found 6 matches

by ptercinet
17 Apr 2005, 09:17
Forum: Class Rules
Topic: Mat'ls: keel & rudder; mast, boom, stand. rig. fittings
Replies: 13
Views: 9198

Unfortunately there is a strong lobying against the modification of the regulation concerning the bullets....

If I realise a mix of resin and
something with higher density than lead but with effective density < 11.3
is it legal ?

Pierre
by ptercinet
14 Mar 2005, 08:53
Forum: General IOM
Topic: Polypropylene sails
Replies: 6
Views: 4353

Hi,

I think that a polypropylen film is well too elastic, only a polyester film will give you a sufficient dimensional stability.
some germans skippers use crystal flower film with some success...
but I dont know wich type of material is it (PP,PE,PET).

Pierre
by ptercinet
07 Mar 2005, 08:18
Forum: Measurement and Measurers
Topic: Water Free Measurement of IOM
Replies: 20
Views: 26455

water free measurements.

Hi, A new method MUST have 1+2 features 1) being simpler of course 2) to be compatible with all the possibilities offers by the current rule ie a legal boat under 2004 must be elligible by the new method. it is an evidence that you need to relax some specifications to achieve 2) 3)don't create a loo...
by ptercinet
07 Dec 2004, 10:27
Forum: General IOM
Topic: Radio equipment
Replies: 25
Views: 15847

Hi Riku, Where find more information on DSM system, is it comply whith EN 300 328 ETSI regulation ? from my point of view ISM band is a licence free band, but you need to be inline with regulation. it is very difficult to find information on ISM band, but on documents I found a distinction between s...
by ptercinet
06 Dec 2004, 11:29
Forum: General IOM
Topic: Radio equipment
Replies: 25
Views: 15847

Hi Riku, please could you clarify "that DSM is a real spread spectrum system since it occupies signal spreading with a pseudo-random spreading sequence" DSM is a Spreadspectrum (like CDMA) over the ISM Band, or over each sub channel (1Mhz) in this last case DSM could be understande as à mix beetwee...
by ptercinet
05 Dec 2004, 08:58
Forum: General IOM
Topic: Radio equipment
Replies: 25
Views: 15847

hi everybody, I note on http://www.spektrumrc.com/ : DSM System Specifications Frequency Band 2.400-2.4835 GHz Channels 79 Channel Spacing 1 MHz For information Bluetooth specification is : 2.4 to 2.4835 Ghz Technologie FHSS (Frequency hoping spread spectrum) 79 channels spacing 1Mhz 1600 Hop /S GFS...