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older radios still AMA legal?

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Old 07-09-2003, 06:58 PM
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v8rob
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Default older radios still AMA legal?

Hello,

Several years ago I inherited my father's stash of RC flying stuff. I'm just now getting around to dusting things off and hopefullying getting back in the air.

Among other things in my fathers stash, there are two transmitters (with receivers, servos, etc.) but I'm not sure if they comply with current frequency regulations.

The radios are:
1. JR MAX 6 (mod#: J6FC2) The transmitter and receiver crystals are tagged 72.210 mHz.

2. Airtronics Vanguard (mod#: VG6DR) The transmitter and receiver are both tagged 72.670 mHz.

Do these transmitters comply with current AMA and FCC regulations for RC aircraft?

thanks,
Rob Pinkston
Dallas, Tx
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Old 07-09-2003, 07:02 PM
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bearmech
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Default older radios still AMA legal?

Are there gold stickers on the backs of the TXs?
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Old 07-09-2003, 07:36 PM
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v8rob
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Default older radios still AMA legal?

yes, there are.

One sticker reads:

R/CMA RFCHECK
AMA date: 07 <---(the "07" is in a little oval)

The other sticker reads:

R/CMA RFCHECK
AMA date: 3/90 03 <---(the "03" is in a little oval)


What does all that mean?

Thanks,
Rob
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Old 07-09-2003, 08:26 PM
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JohnBuckner
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Default older radios still AMA legal?

Yes those stickers indicate the radios were either sold post 1991 as narrow band units or were at some point certified as narrow band units. Gold stickers are no longer included in new radios since the deadline for the complete changover is long since over. As a matter of fact 1998 was supposed to have been the deadline that older wide band units could be 'narrowbanded' but one or two independant shops may still be doing it but the legality of continued 'narrowbanding' is very much a grey area.

So yes your radios are legal, enjoy

John

By the way it is FCC regulation not AMA. The national frequency plan was the result by cooperation of the manufacturers association, AMA and the FCC which became FCC regulation.
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Old 07-09-2003, 08:55 PM
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v8rob
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Default older radios still AMA legal?

WOO-HOOOO!!! (read in Homer Simpson voice)

It sounds like I'm that much closer to getting back in the air!!

thanks!
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Old 07-10-2003, 02:49 PM
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Rodney
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Default older radios still AMA legal?

While the transmitters are now narrow banded and legal, you might still have problems. The receivers may not be as good as the newer ones and may be interfered with by adjacent channels. It is legal to use these older wide band receivers but it may not be safe as you will be more subject to adjacent channel interferance. If you can control the use of the channels next to yours (do not operate yours when an adjacent channel is in use) you will be okay.
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Old 07-10-2003, 04:40 PM
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Default Vanguard

I don't know anything about JR but I have a couple of Airtronics radios that are about the same vintage as yours. I am relatively sure that both of them have narrow band receivers. I am not using either of them at the moment but I do plan to use them in the near future. One of them has a single stick transmitter and these are very rare now. It is the primary one that I plan to put into service.

Howard
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Old 07-12-2003, 06:44 AM
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Grampaw
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Default older radios still AMA legal?

While the older sets are still legal, you may have a problem at the field, so check it out with club officers. At our site there are a few old AM's still flying, in fact I have two. we have had no problems. However if I wish to fly at another club I check it out first. And I'm told that AM sets are not allowed in an AMA sanctioned event.
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