Radio's
- Thread starter Kris Flynn
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Hi Mike
Thanks or the info - what was the output of the radio 0.5W or lower? Was the SANWA stick higher than that? Only ask as 0.5W is the radiated surface power limit. I got this advice from the radio inspector but he said surface radios didn't need to be certified like aero ones did. He did however say you could get issued a warning if your output was excessive (I can't define excessive so who knows).
All in all I think we are pretty lucky out here with the lack of congestion on the airwaves.
GT
Thanks or the info - what was the output of the radio 0.5W or lower? Was the SANWA stick higher than that? Only ask as 0.5W is the radiated surface power limit. I got this advice from the radio inspector but he said surface radios didn't need to be certified like aero ones did. He did however say you could get issued a warning if your output was excessive (I can't define excessive so who knows).
All in all I think we are pretty lucky out here with the lack of congestion on the airwaves.
GT
PHM Racing
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Sill looking for a 3PK to buy if any are for sale
Thanks
Thanks
Kris, Spoke to Hobby Supplies in melbourne yesterday and they have a second hand JR R1 PCM 36 radio for sale $495.00. They told me the radio is the new limited gold series as new two months old in the box with PCM receiver transmitter nicad pack and 240v charger. Wish i had the money on hand sounds like a good deal.
GTR, I don't remember the Wattage, but he showed me on the spectrum analyzer and the Sanwa was twice as tall and a narrower spike. It was David Leigh doing the work on it and I believe he has a very good reputation, plus he is a boater so he knows what we need.
Tim it is on 36 of course.
I have a couple of 75 mhz modules as well but they will be sold back to the US.
RCboater, that is a pretty reasonable price for the Gold R-1, you could talk to Ian and see if he is ready to part with his yet too.
Tim it is on 36 of course.
I have a couple of 75 mhz modules as well but they will be sold back to the US.RCboater, that is a pretty reasonable price for the Gold R-1, you could talk to Ian and see if he is ready to part with his yet too.
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thats ALOT of money for a radio thanks for the tip though!
Mike, can you pelase tell me where i can get more details on the r756?
Thanks
Kris
thanks for the tip though!Mike, can you pelase tell me where i can get more details on the r756?
Thanks
Kris
Hi Mike
This is good info and I do know of David Leigh (by rep) the spectrum analyser might not have been much use depending on what you were looking at. I guess my point would be the Sanwa is an AM radio (guessing) whereas the Hitec is FM. It would make sense for the Sanwa to have a higher peak as it is amplitude modulation - the Hitec of course is Freq Modulation and of narrowband configuration. I don't know that this is much of a power output comparison. Sorry I don't know the actual testing you guy's were doing. Dirty signal Tx pretty much always have a higher output than narrow band ones.
The ones I've got are on 29MHz - not that this should make any difference unless the one tested just wasn't up to it.
Heres an extract of the relevant rules.
Operating Frequencies and Power Levels
The Radio-controlled Models Class Licence provides for the operation of transmitters that have a maximum equivalent isotropically radiated power greater than 300 milliwatts and not exceeding 1 watt, as such transmitters are typically associated with the control of the more sophisticated types of models. Specifically, the Class Licence provides for the control of model aircraft, landcraft and watercraft in the frequency band 29.72 to 30 MHz, and model aircraft and watercraft in the frequency band 36 to 36.6 MHz.
In the 36 MHz band, model aircraft and watercraft operations may operate on a carrier frequency obtained using the formula:
35.990 + n(0.020) MHz where n = 1-30,
whereas only model aircraft may operate on a carrier frequency obtained using the formula:
36.000 + n(0.020) MHz where n = 1-29.
Transmitters intended to operate under the Radio-controlled Models Class Licence must not exceed the maximum output power that is specified in the licence. To do so is a breach of the Class Licence conditions.
I do like JR gear & Futaba but I would warn the unwary that FM & PCM receivers are big $$$$$ for an extra ones. You can also get 29MHz modules for these to run on FM if you want to. Always good expanding the knowledge.
This is good info and I do know of David Leigh (by rep) the spectrum analyser might not have been much use depending on what you were looking at. I guess my point would be the Sanwa is an AM radio (guessing) whereas the Hitec is FM. It would make sense for the Sanwa to have a higher peak as it is amplitude modulation - the Hitec of course is Freq Modulation and of narrowband configuration. I don't know that this is much of a power output comparison. Sorry I don't know the actual testing you guy's were doing. Dirty signal Tx pretty much always have a higher output than narrow band ones.
The ones I've got are on 29MHz - not that this should make any difference unless the one tested just wasn't up to it.
Heres an extract of the relevant rules.
Operating Frequencies and Power Levels
The Radio-controlled Models Class Licence provides for the operation of transmitters that have a maximum equivalent isotropically radiated power greater than 300 milliwatts and not exceeding 1 watt, as such transmitters are typically associated with the control of the more sophisticated types of models. Specifically, the Class Licence provides for the control of model aircraft, landcraft and watercraft in the frequency band 29.72 to 30 MHz, and model aircraft and watercraft in the frequency band 36 to 36.6 MHz.
In the 36 MHz band, model aircraft and watercraft operations may operate on a carrier frequency obtained using the formula:
35.990 + n(0.020) MHz where n = 1-30,
whereas only model aircraft may operate on a carrier frequency obtained using the formula:
36.000 + n(0.020) MHz where n = 1-29.
Transmitters intended to operate under the Radio-controlled Models Class Licence must not exceed the maximum output power that is specified in the licence. To do so is a breach of the Class Licence conditions.
I do like JR gear & Futaba but I would warn the unwary that FM & PCM receivers are big $$$$$ for an extra ones. You can also get 29MHz modules for these to run on FM if you want to. Always good expanding the knowledge.
Good points GTR, the 3D was actually wider than the Sanwa, not even close to the narrow bands that he is used to testing.
Kris they are an old model and not made any more so I have no idea where you can see specs on them, they are 3 channel, 6 model memory, seperate frequency modules. The PCM receivers are getting hard to find but they do work on FM as well, you can mix and match between FM and PCM.
Kris they are an old model and not made any more so I have no idea where you can see specs on them, they are 3 channel, 6 model memory, seperate frequency modules. The PCM receivers are getting hard to find but they do work on FM as well, you can mix and match between FM and PCM.
Hi Guys
Kris you can by PCM receivers for the JR still but they are about $150 and up. They will work with FM receivers provided they have the right directional shift. You can get modules to run 29MHz as I said I have seen a couple on Ebay in Oz but people don't know what they are doing. As you will have noticed you can use 36MHz for water but other than that and 29MHz you are looking for trouble. Most stuff coming out of Asia (grey imports) are on 40MHz which as you will have noticed is not legal. Only other point would be warranty, as Gino discovered, can be a real pain in the @$$. All in all weigh up your options and go for what you want. Despite all this talk it is really hard to go past KO gear as it is about as good as it gets.
:unsure:
Kris you can by PCM receivers for the JR still but they are about $150 and up. They will work with FM receivers provided they have the right directional shift. You can get modules to run 29MHz as I said I have seen a couple on Ebay in Oz but people don't know what they are doing. As you will have noticed you can use 36MHz for water but other than that and 29MHz you are looking for trouble. Most stuff coming out of Asia (grey imports) are on 40MHz which as you will have noticed is not legal. Only other point would be warranty, as Gino discovered, can be a real pain in the @$$. All in all weigh up your options and go for what you want. Despite all this talk it is really hard to go past KO gear as it is about as good as it gets.
:unsure:
boaterbill
Well-Known Member
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- Dec 15, 2003
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Tower Hobbies has the Futaba 3PDF with one receiver on sale for about $120. I always use the Hitec receivers with Futaba radios, the receivers cost about $30 and the warranty work is excellent, most of the time they do not charge for repairs on servos and receivers. Radios depend on what is wrong with the radio.
http://towerhobbies.com/
Bill
Tower does not sell Hitec receiver, you'll have to go to Hitec to purchase
http://towerhobbies.com/
Bill
Tower does not sell Hitec receiver, you'll have to go to Hitec to purchase
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Guys, this is the best frequency chart for Australia http://www.fastelectrics.com/hunter/ausfrequencies.htm
GTR, 40 is a legal frequency, I think Tim D uses it as well as several guys from our club.
The KO propo uses the exact same case as the 756 I think the internals are the same as well.
The JR 756 PCM uses "Z" PCM which is not made any more but still available from some retail stores as old stock. The R-1 uses "S" PCM and it is not compatable with the 756, however the R-1 can use "Z" PCM as well. Infact the R-1 with "Z" PCM has a better failsafe. We call the Z pcm receivers "Bricks" because of their size.
Bill, I do like the Hitec receivers as well, the dual conversion ones are the best FM I have seen, just wish the 3D had more output. ServoCity carries the Hitec receivers at a good price I think.
GTR, 40 is a legal frequency, I think Tim D uses it as well as several guys from our club.
The KO propo uses the exact same case as the 756
I think the internals are the same as well.The JR 756 PCM uses "Z" PCM which is not made any more but still available from some retail stores as old stock. The R-1 uses "S" PCM and it is not compatable with the 756, however the R-1 can use "Z" PCM as well. Infact the R-1 with "Z" PCM has a better failsafe. We call the Z pcm receivers "Bricks" because of their size.
Bill, I do like the Hitec receivers as well, the dual conversion ones are the best FM I have seen, just wish the 3D had more output.
ServoCity carries the Hitec receivers at a good price I think.40Mhz is legal for surface use in Australia. That includes boats. JR is sold in Australia by L. Oreilly (model flight) based in South Oz. They sell them on 40Mhz.
The JR 756 uses the same case as the KO EX5 (the original EX5 that is).
I used KO AM radios for years and found out the hard way that the receivers are garbage. The transmitter however was very good. They are weighted very well and are comfortable to use.
Funnily enough I switched back to JR about 2 years ago and haven't had any radio drama's since! Very different to the KO years! Addmittedly I now use a 40Mhz FM radio (not PCM). I bought it in Oz from a shop.
The person who does the radio repairs on Hitec in this country lives 5 minutes away from me. He is a really nice guy and I have been there plenty of times over the years. I've seen lots of Hitec 3d's there a lot of times if you know what I mean
The JR 756 uses the same case as the KO EX5 (the original EX5 that is).
I used KO AM radios for years and found out the hard way that the receivers are garbage. The transmitter however was very good. They are weighted very well and are comfortable to use.
Funnily enough I switched back to JR about 2 years ago and haven't had any radio drama's since! Very different to the KO years! Addmittedly I now use a 40Mhz FM radio (not PCM). I bought it in Oz from a shop.
The person who does the radio repairs on Hitec in this country lives 5 minutes away from me. He is a really nice guy and I have been there plenty of times over the years. I've seen lots of Hitec 3d's there a lot of times if you know what I mean
Hi TimD
The 40MHz being legal is really interesting as the extract I included in an earlier post came straight from communications and is the LAW as it stands. Last updated late 2002. If there has been an amendment made to this it has not been posted on their web. I'm always happy to be wrong when someone can show me the proof. I am always more concerned when people start doing something and it becomes 'the truth' without the rules being changed. Even if we all did it and it's not supported by laws doesn't make it right.
<_<
ps I was really refering to KO FM equipment but the AM stuff was pretty good also.
The 40MHz being legal is really interesting as the extract I included in an earlier post came straight from communications and is the LAW as it stands. Last updated late 2002. If there has been an amendment made to this it has not been posted on their web. I'm always happy to be wrong when someone can show me the proof. I am always more concerned when people start doing something and it becomes 'the truth' without the rules being changed. Even if we all did it and it's not supported by laws doesn't make it right.
<_<
ps I was really refering to KO FM equipment but the AM stuff was pretty good also.
GTR,
As far as I know the MAAA got approval for it from Federal Comms.
I had my concerns before I bought a 40meg set and asked around.
I will not be happy if I was fed a story about this :angry: As would anyone else who purchased a radio from a retailer in Australia.
Tim.
As far as I know the MAAA got approval for it from Federal Comms.
I had my concerns before I bought a 40meg set and asked around.
I will not be happy if I was fed a story about this :angry: As would anyone else who purchased a radio from a retailer in Australia.
Tim.
Hi TimD
The MAAA only has jurisdiction over aircraft clubs and sites - I could be wrong but when I looked up the power output thing on the Comms web page the info I posted was about half of what was there. I thought it was the relevant bit. I am happy to pass the link along to you to have a look at. Funny thing is that Japan is 40MHz & maybe Hong Kong - if it was a legal Freq in Oz why would the manufacturers still manufacture 29MHz gear as we are the only country that uses this Freq. You can buy most of the major gear makers equip on 29MHz. Lets be honest we are a tiny market and if there wasn't a need to manufacture 29MHz equipment would you? Maybe these 'importers' are getting lazy or trading on peoples ignorance - I'm no expert and just trust what I read on a government web page.
The MAAA only has jurisdiction over aircraft clubs and sites - I could be wrong but when I looked up the power output thing on the Comms web page the info I posted was about half of what was there. I thought it was the relevant bit. I am happy to pass the link along to you to have a look at. Funny thing is that Japan is 40MHz & maybe Hong Kong - if it was a legal Freq in Oz why would the manufacturers still manufacture 29MHz gear as we are the only country that uses this Freq. You can buy most of the major gear makers equip on 29MHz. Lets be honest we are a tiny market and if there wasn't a need to manufacture 29MHz equipment would you? Maybe these 'importers' are getting lazy or trading on peoples ignorance - I'm no expert and just trust what I read on a government web page.
GTR,
I know that manufacturers are hesitant to manufacture stuff on 29megs. It created some drama's back when I worked in the industry. The choice was 27megs only for surface unless you could convince the radio manufacturer to do a "batch" on 29 and this meant more cost. I have had transmitters and receivers converted from 27 but it is a huge pain in the @$$. 29megs was very common with multi-channels until 36FM killed it off.
I have been told in the past that MAAA acts on behalf of the industry in regards to regulations etc. and radio certification.
Silvertone lists 40Mhz on their website and they are Aussie made radio's and frequency boards. Perhaps if you want to find out for certain you could contact Bob Young there and confirm it with him. He would know or could advise you who to contact.
Tim.
I know that manufacturers are hesitant to manufacture stuff on 29megs. It created some drama's back when I worked in the industry. The choice was 27megs only for surface unless you could convince the radio manufacturer to do a "batch" on 29 and this meant more cost. I have had transmitters and receivers converted from 27 but it is a huge pain in the @$$. 29megs was very common with multi-channels until 36FM killed it off.
I have been told in the past that MAAA acts on behalf of the industry in regards to regulations etc. and radio certification.
Silvertone lists 40Mhz on their website and they are Aussie made radio's and frequency boards. Perhaps if you want to find out for certain you could contact Bob Young there and confirm it with him. He would know or could advise you who to contact.
Tim.
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Hi TimD
I am not surprised that Silvertone manufatures on 40MHz as they are in the business of selling radio gear, that however, doesn't make it a legal frequency in Oz to use. I am not expert enough to no 100% one way or the other so I am only able to trust what is on the offical govenrment web page. This licensing arrangement came in to effect on the 13 Feb 2002 and has probably made all the other information wrong. I have seen this sort of thing occur before where lots of peoples gear becomes no longer legal. I guess my concern would be for organisations such as the AMPBA sanctioning the use of illegal frequencies during competition events. There are some real liability issues here.
Anyway here is the link.
http://www.aca.gov.au/aca_home/publication...info/models.htm
Hope this link works if not cut and paste to your browser should get it done. MikeG my information appears to be two years newer than the link you posted.
:blink:
I am not surprised that Silvertone manufatures on 40MHz as they are in the business of selling radio gear, that however, doesn't make it a legal frequency in Oz to use. I am not expert enough to no 100% one way or the other so I am only able to trust what is on the offical govenrment web page. This licensing arrangement came in to effect on the 13 Feb 2002 and has probably made all the other information wrong. I have seen this sort of thing occur before where lots of peoples gear becomes no longer legal. I guess my concern would be for organisations such as the AMPBA sanctioning the use of illegal frequencies during competition events. There are some real liability issues here.
Anyway here is the link.
http://www.aca.gov.au/aca_home/publication...info/models.htm
Hope this link works if not cut and paste to your browser should get it done. MikeG my information appears to be two years newer than the link you posted.
:blink:
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poolschool
Well-Known Member
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- Sep 8, 2003
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- 614
AHHHH c'mon guys
I'm pulling out the very little hair I have left over radio's - how ridiculous. I went to Sydney today - Miranda in fact - one Hobby store said that 27MHz FM is legal in Aus, and the other guy just up the road said that it is not!!!!! :angry:
Oddly enough the guy that did stocks 27MHz receivers and the other didn't - he said I had to get it from the States.
I too have read Gary's link prior to this thread (CLass licences) and it only states 29MHz and 36Mhz for use in Aus.
Now I'm very confused and frustrated!
So Kris, to jump on the bandwagon I have a very little used JR XS-3 radio system ( on 27MHz) for sale. It's got no receiver as I've just been told they can't fix mine....after a $24 service fee mind you. The servos,battery box, switch and mounting hardware are all new never used. All comes with manual (english) and original packaging. Make an offer anyone...NO REASONABLE offer will be refused. (I know- should be in the for sale section)
So to my next question - I'm in the market also for a new radio system-preferrably FM - I don't need the servos - just Wheel TX and RX on either 29 or 36Mhz band. Anyone have any suggestions or recommendations based on what they use and their previous experiences.
Thanks
Gino
I'm pulling out the very little hair I have left over radio's - how ridiculous. I went to Sydney today - Miranda in fact - one Hobby store said that 27MHz FM is legal in Aus, and the other guy just up the road said that it is not!!!!! :angry:
Oddly enough the guy that did stocks 27MHz receivers and the other didn't - he said I had to get it from the States.
I too have read Gary's link prior to this thread (CLass licences) and it only states 29MHz and 36Mhz for use in Aus.
Now I'm very confused and frustrated!
So Kris, to jump on the bandwagon I have a very little used JR XS-3 radio system ( on 27MHz) for sale. It's got no receiver as I've just been told they can't fix mine....after a $24 service fee mind you. The servos,battery box, switch and mounting hardware are all new never used. All comes with manual (english) and original packaging. Make an offer anyone...NO REASONABLE offer will be refused. (I know- should be in the for sale section)
So to my next question - I'm in the market also for a new radio system-preferrably FM - I don't need the servos - just Wheel TX and RX on either 29 or 36Mhz band. Anyone have any suggestions or recommendations based on what they use and their previous experiences.
Thanks
Gino
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