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Showing posts with label Gadgets. Show all posts
Showing posts with label Gadgets. Show all posts

Wednesday, August 15, 2012

Little people invading?

Little people invading?

Seen a lot of radio stuff with 433Mhz written on it recently. I have a clock with temperature display and a remote transducer with the said mark. So I got my uv-3r out and had a scan around and found it’s burp on 433.920Mhz but if I go up 5khz and open squelch I get an almost constant stream of chirps and burps. Further investigation found http://en.wikipedia.org/wiki/LPD433 , http://en.wikipedia.org/wiki/Low-power_communication_device  and http://en.wikipedia.org/wiki/Remote_keyless_system. Low and behold my car keys give out a buzz near there.
As well as that we have http://ukhas.org.uk/general:beginners_guide_to_high_altitude_ballooning doing some cool stuff on 434.075Mhz, http://ukhas.org.uk/guides:tracking_guide. They have their own protocol http://ukhas.org.uk/communication:protocol looks simpler than APRS and works ok, this is the sort of thing we could all be doing if not for http://licensing.ofcom.org.uk/binaries/spectrum/amateur-radio/guidance-for-licensees/samplelicence07.pdf section 9(3)
9(3) Without prejudice to Clause 1 of this Licence, the Licensee shall not establish or use the Radio Equipment in any Aircraft or other Airborne Vehicle.
We could make use of this simpler protocol on HF? For direction finding as that is the only way we can beacon other than 144.800Mhz without NOV (notice of variation)
I also noticed we were turfed out of parts of 70cm for the Olympics. 70cm is a nice big band in a prime part of the spectrum and we have it on a secondary basis, if we don’t use it others have the right to do so.
If you a Foundation Licence see table A in the licence, it’s your highest and biggest apart from 10Ghz. So cherish it.

Thursday, June 7, 2012

UV-3R trick!

If you want to use it as a scanner and are worried you may touch the TX button on a frequency you are not licenced for. The trick is to set the repeater shift to 39.99Mhz on vhf or 69.99Mhz on uhf and the software will stop you transmitting outside the band.( 136-174 MHz and 400-470 MHz)
Also the volume button opens the squelch if you hold it down. Seen this one here http://www.uv3r.com/images/UV_3R_CheatSheet.pdf
they sell them at http://www.uv3r.com/Index.html not where I got mine, so can’t vouch for them.
seen some very brightly coloured ones on e-bay as well.
by the way I set this up on the VFO's for UHF and VHF and got in a real knot when I had to QSY from my stored repeater channel.

Tuesday, May 1, 2012

Gadget wigets continued

Why are not all Gadget widgets the same of HF predictions?
and

don't always show same traffic lights colors.
badge one has an explanation at http://www.hamqsl.com/solar2.html
that I'm trying to understand. but does not have any explanation I can find.
I'm going to compare them to what I hear on my trusty Sony portable and let you know which is more accurate.

CQ MAP?

Any one know how I could write a Gadgets, widgets or javascript to search twitter for #callingCQ and show anyones tweets with this tag. eventualy it could go on a map like http://uksnowmap.com/ or http://www.twitwx.co.uk/ had a look at their code but not sure about it can't get to bottom of it.

I suppose I could e-mail them?

Friday, April 27, 2012

HF-DATA BADGES

I'm collecting together a pile of radio data widgets/gadgets on my site. http://sites.google.com/site/gw6pfk/HF-data
see example, I'm also working on gadget wrapper for some of the more awkward ones to go on google sits.
I you see any I may be interested in drop me a line.