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Radio Equipment => UHF Systems => Topic started by: lemonsorbie on May 31, 2011, 10:25:44 PM

Title: What UHF Sysytems are legal for both UK & USA
Post by: lemonsorbie on May 31, 2011, 10:25:44 PM
Hi,

This internet lark is way too big for me. Seem to be spending hours searching for answers.

Can anyone tell me if there is a UHF system legal in both the UK & the USA/Canada.

With the 35/72Mhz stuff it is clear that 35 is UK legal & 72 is USA/Canada legal, however I can not use 35 in Canada nor 72 in the UK.

Is it as simple that 459MHz is legal for model control in the UK & 433MHz is illegal. Vice versa for North America.

If this is the case and I can not find a UHF sytem to take from the UK to Canada and stay LEGAL in both continents I'm screwed!

Please let the FPV gods shine on my credit card and let there be a system that I can tune on switch for both countries!!

Regards & thanks as always,

Steve

 
Title: Re: What UHF Sysytems are legal for both UK & USA
Post by: Devonian on May 31, 2011, 11:16:08 PM
Here you go - UK legal frequencies for land, sea and most importantly, air!
http://www.ukrcc.org/ (http://www.ukrcc.org/)

International frequencies for the country of interest
http://www.ukrcc.org/internat.html (http://www.ukrcc.org/internat.html)
and
http://www.fai.org/aeromodelling/frequencies/ (http://www.fai.org/aeromodelling/frequencies/)
or
http://www.rc-network.de/magazin/artikel_05/art_05-027/art_027-01.html (http://www.rc-network.de/magazin/artikel_05/art_05-027/art_027-01.html)

Maybe you will get disapointed, maybe they're not bang up to date, but please, don't shoot the messenger ;)

Nigel.
Title: Re: What UHF Sysytems are legal for both UK & USA
Post by: FPVSteve on June 01, 2011, 12:32:31 AM
can't you just swap out rx's and buy two transmitters?
Title: Re: What UHF Sysytems are legal for both UK & USA
Post by: simondale on June 01, 2011, 01:11:10 AM
That's the great thing about standards, there are so many to choose from!

You could use an EzUHF and reflash the firmware when you cross the pond.  It's a two minute job with a PC.
Title: Re: What UHF Sysytems are legal for both UK & USA
Post by: electricmick on June 01, 2011, 02:49:48 AM
Quote from: lemonsorbie on May 31, 2011, 10:25:44 PM
Hi,

This internet lark is way too big for me. Seem to be spending hours searching for answers.

Can anyone tell me if there is a UHF system legal in both the UK & the USA/Canada.

With the 35/72Mhz stuff it is clear that 35 is UK legal & 72 is USA/Canada legal, however I can not use 35 in Canada nor 72 in the UK.

Is it as simple that 459MHz is legal for model control in the UK & 433MHz is illegal. Vice versa for North America.

If this is the case and I can not find a UHF sytem to take from the UK to Canada and stay LEGAL in both continents I'm screwed!

Please let the FPV gods shine on my credit card and let there be a system that I can tune on switch for both countries!!

Regards & thanks as always,

Steve

 

Steve,

Yea, I know, Canada is a big place but are you going anywhere near Montreal, there is a thriving FPV community in Quebec, we had our first FPV meet last summer, hope to have another one soon. I agree with Simon's recommendation for EzUHF if you don't already have a 35MHz Tx that you could put a 72MHz module in it. 72MHz is going so rapidly out of use there is plenty of cheap new and used kit around here.

Mick
Title: Re: What UHF Sysytems are legal for both UK & USA
Post by: lemonsorbie on June 01, 2011, 02:10:18 PM
Thanks al for your advice!

BTW I did look at the websites posted by Devonian, the lin is dead for US frquancy's, hence my post!

Steve W, I'm from Beverley 9tight as a ducks crack!) worth a thought though.

Hi electricmick, AB it is for me, Nr Calgary. I have m8's their into FPV & RC.

Simon, is there athread about flashing the FW on the EzUHF please.

One last thing. If I buy a 72 Futaba module and a 35 Rx is it as simple as putting 35 crystals in them both?

Cheers,

Steve
Title: Re: What UHF Sysytems are legal for both UK & USA
Post by: Devonian on June 01, 2011, 03:23:12 PM
Get the synthesised Tx module(s) and you can dial up any channel you want (no crystals req'd).
Simple plug n play.

Nigel.
Title: Re: What UHF Sysytems are legal for both UK & USA
Post by: simondale on June 01, 2011, 06:19:02 PM
LS: I'm also from Beverley. Born in the Westwood hospital.

There is no thread about flashing the firmware. You just load the software, plug in the EzUHF and press "update firmware" basically.  The process is described in the software.

Devonian: I've never used a synthesised Tx but on the Rxs you can synthesise a channel but not a whole frequency change.  EG if I have a 35MHz Corona Rx I can't get it to synthesise 72MHz.  Is this different with the Tx modules then?

All the best

Simon
Title: Re: What UHF Sysytems are legal for both UK & USA
Post by: simondale on June 01, 2011, 06:21:05 PM
Quote from: lemonsorbie on June 01, 2011, 02:10:18 PM
One last thing. If I buy a 72 Futaba module and a 35 Rx is it as simple as putting 35 crystals in them both?

No. That's not possible. (As far as I understand it anyhow).
Title: Re: What UHF Sysytems are legal for both UK & USA
Post by: Devonian on June 01, 2011, 07:26:20 PM
Simon,

I was refereing to the modules for the Futaba T9 etc.
The synthesised module for the Futaba T9 etc can be had in either 35MHz or 72MHz flavours.
The module only covers the one band, so 2 modules are needed to cover 35 and 72.
http://www.futaba-rc.com/accessories/futl8910.html (http://www.futaba-rc.com/accessories/futl8910.html)
http://www.stevewebb.co.uk/index.php?pid=FUTSYNTH&area=RADIO (http://www.stevewebb.co.uk/index.php?pid=FUTSYNTH&area=RADIO)

Similar to the Frsky modules for 2.4GHz that are a direct plug in on the T9
http://www.giantcod.co.uk/frsky-v8ft-24ghz-futaba-module-only-version-p-405313.html (http://www.giantcod.co.uk/frsky-v8ft-24ghz-futaba-module-only-version-p-405313.html)

Also, a Spektrum compatible Tx module
http://www.spektrumrc.com/Products/Default.aspx?ProdID=SPMMSFUT7 (http://www.spektrumrc.com/Products/Default.aspx?ProdID=SPMMSFUT7)

And now the OpenLRS module
http://www.flytron.com/openlrs/109-openlrs-m1-tx-module-for-futaba.html (http://www.flytron.com/openlrs/109-openlrs-m1-tx-module-for-futaba.html)

Nigel.