pinny Posted April 20, 2009 Share Posted April 20, 2009 Ok cool thanks for that! looks like I'll have to get some uk spec ones...Mike try the pmr446 radios thay run at 500mw but can work up to 2 mile in open space the motorcycle driving schools use them around here bike to bike i have a pair of motorola xtn446 work ok and you can buy various headsets etc chris Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted April 20, 2009 Share Posted April 20, 2009 Of the PMRs the XTNs are among the best. I have an XTN446 which has a max power of 0.5W and also a Motorola GP68. That's a 430-470mhz radio which I use on the PMR frequencies; they have a much better transmit power than the 0.5W allowed by PMR446, I think it can hit 5W on high and 1W on low. Quote Link to comment Share on other sites More sharing options...
western Posted April 20, 2009 Share Posted April 20, 2009 http://www.ofcom.org.uk/radiocomms/ifi/lic...ormation/ofw57/ UK PMR frequency list 462.56-462.72Mhz. 462.56 -- Security Company use 462.72 -- Scottish Hydro radio frequency So not recommended use your intend use, maybe possible to have the frequency range adjusted into the 449.00 UK General frequency band, which will require a licence that cost £70 per 3 years. hth Quote Link to comment Share on other sites More sharing options...
Mark90 Posted April 22, 2009 Share Posted April 22, 2009 I've never experinced any interference issues using US spec GPRS/FRS radio's in the UK. Using them in France when skiing earlier this year it was interesting to note the the number of people using the US frequencies, with a quite a range of different languages/accents. Quote Link to comment Share on other sites More sharing options...
mike4444244 Posted April 22, 2009 Share Posted April 22, 2009 thanks chaps, any idea what the range on these things is likely to be when stuffed inside some leathers and on the 0.5W setting? if its only a few yards i'm unlikely to interfere with anyone given the very occasional use it will get? Quote Link to comment Share on other sites More sharing options...
santalars Posted April 23, 2009 Share Posted April 23, 2009 If you use them on the bike it will be hard for them to get you. The range will be 2-5 miles with no obstructions. Quote Link to comment Share on other sites More sharing options...
Guest noggy Posted April 23, 2009 Share Posted April 23, 2009 the likelyness of gettin caught is so slim, just use them! turn them off if you hear the coppers! and use codenames lol Quote Link to comment Share on other sites More sharing options...
western Posted April 23, 2009 Share Posted April 23, 2009 It's not the police that will knock on the door, OFCOM listen to loads of transmissions every minute, if they decide it's illegal & doesn't conform to the UK telegraph act they will prosecute & confiscate any equipment. Quote Link to comment Share on other sites More sharing options...
GBMUD Posted April 23, 2009 Share Posted April 23, 2009 if they decide it's illegal & doesn't conform to the UK telegraph act they will prosecute & confiscate any equipment. If they can find you or it. Chris Quote Link to comment Share on other sites More sharing options...
Happyoldgit Posted April 23, 2009 Share Posted April 23, 2009 They can and sometimes will. Quote Link to comment Share on other sites More sharing options...
western Posted April 23, 2009 Share Posted April 23, 2009 http://www.ofcom.org.uk/enforcement/ http://www.ofcom.org.uk/radiocomms/ifi/enf...legalbroadcast/ http://www.ofcom.org.uk/radiocomms/ifi/enforcement/ Baldock Monitoring Station & remote sites Quote Link to comment Share on other sites More sharing options...
ThreePointFive Posted April 23, 2009 Share Posted April 23, 2009 the likelyness of gettin caught is so slim, just use them! turn them off if you hear the coppers!and use codenames lol Yeah, and this thread will be a fantastic bit of evidence to show intent and full knowledge that what you were doing is illegal. Show some responsibility people... Quote Link to comment Share on other sites More sharing options...
mike4444244 Posted April 23, 2009 Share Posted April 23, 2009 I think I'll just get a uk one! Thanks for the above! Quote Link to comment Share on other sites More sharing options...
Pete Attryde Posted April 23, 2009 Share Posted April 23, 2009 I think I'll just get a uk one! Thanks for the above! Mike, one of the guys I work with may be able to alter the frequency range of the ones you have or at least have the information to allow me to do it. Pete. Quote Link to comment Share on other sites More sharing options...
mike4444244 Posted April 23, 2009 Share Posted April 23, 2009 cool I'll bring them tomorrow, am coming over quite early to shift the cosworth to my parents house! Quote Link to comment Share on other sites More sharing options...
Pete Attryde Posted April 23, 2009 Share Posted April 23, 2009 cool I'll bring them tomorrow, am coming over quite early to shift the cosworth to my parents house! Morning or afternoon? Pete Quote Link to comment Share on other sites More sharing options...
Pwyll Posted May 16, 2009 Share Posted May 16, 2009 Sorry about this being off topic, but I am a bit of a dunce and am sure there is some wise sages on here who have the answer. For work we use Kenwood VHS radios for comms. These are charged in cradles that use adapters to drop the mains voltage down. The adapter takes 230V and drops that down to 14.5V, 800mA. This then goes into the cradle that takes it further down to 9.4V, 850mA. My qusetion is, is it possible to connect a 12V supply to the cradle so that I can charge the radio in my truck on the move? If it is possible, how do I go about doing it? Thanks in advance,, Paul Quote Link to comment Share on other sites More sharing options...
white90 Posted May 16, 2009 Share Posted May 16, 2009 simplest way would buy a cheap inverter for your car Quote Link to comment Share on other sites More sharing options...
BogMonster Posted May 16, 2009 Author Share Posted May 16, 2009 Is the 14.5V AC or DC? If it is DC I would think you would be OK to connect it straight to the vehicle as the alternator will put out about 14.2 to 14.4 so worst case might be that the thing won't charge quite so well. If it is AC (and the rectification is only at the second stage) then that won't work and as Tony said an inverter is the easiest idea. Quote Link to comment Share on other sites More sharing options...
RadioRover Posted May 17, 2009 Share Posted May 17, 2009 If its a DC supply into the cradle (from the mains adaptor) then it should be ok to connect to the vehicle electrics - just get the necessary connectors and make sure YOU PUT A FUSE IN THE SUPPLY. Using an inverter if the cradles take DC is just adding complexity / wasting power. If its AC then the inverter route is the option. Quote Link to comment Share on other sites More sharing options...
TheRecklessEngineer Posted May 17, 2009 Share Posted May 17, 2009 If the input to the cradle is AC you may still be able to push in DC...it depends on how it does its stuff further down the train. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted May 18, 2009 Share Posted May 18, 2009 What the last three said - check polarity (voltmeter on the connector from the PSU) and then find a plug to suit. Quote Link to comment Share on other sites More sharing options...
Pwyll Posted May 18, 2009 Share Posted May 18, 2009 Thanks for the information guys. Kenwood have been very helpful and printed the electrical info on the cradle, which was nice of them. The input into the cradle is DC and the polarity of the plug is marked on the socket of the cradle. So, it's off to Maplins after work tommorrow with a wee shopping list. Thanks again, Paul Quote Link to comment Share on other sites More sharing options...
landmannnn Posted May 18, 2009 Share Posted May 18, 2009 Maplins etc sell incar laptop power supplies on which you can vary the voltage 12-20v. A lot more expensive but far more reliable in terms of voltage than a fag lighter converter. Depends on how expensive your radios are. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted May 18, 2009 Share Posted May 18, 2009 Maplins etc sell incar laptop power supplies on which you can vary the voltage 12-20v. A lot more expensive but far more reliable in terms of voltage than a fag lighter converter. Depends on how expensive your radios are. That's rather overkill - the thing takes a (probably very poorly) regulated input from the wall adapter (probably 15v with no load on it) and regulates it down properly internally to charge the battery. All you need is a cig lighter plug & some wire with the correct tip on the end, in fact for the £3 this adapter kit costs it's hardly worth making one. Quote Link to comment Share on other sites More sharing options...
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