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Topic:
Are RF Extenders US and EU
This thread has 5 replies. Displaying all posts.
Post 1 made on Wednesday June 13, 2007 at 23:48
bmcclean
Lurking Member
Joined:
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June 2007
4
Question. there are a number of RF Extenders around for both Pronto and Marantz and they are listed as being US or EU versions but I would like to know if they really are physically different or is it just a marketing jargon.

There is the Phillips RFX-6000 (US) and LI900 (EU)
or the Phillips RFX-6500 (US) and LI910 (EU)
Marantz love to confuse everyone by only have one model for both markets
RX-77 both (US) and (EU) version (2nd question how can you tell which it is?)
RX-7001 both (US) and (EU) version (2nd question how can you tell which it is?)

I have a EU remote but can get a US extender much cheaper, I question if the Extender can except both RF frequencies (433Mhz and 418Mhz) since Receiving a Frequency is not the same as sending one when it comes to FCC rules.
Post 2 made on Thursday June 14, 2007 at 14:51
Lyndel McGee
RC Moderator
Joined:
Posts:
August 2001
12,645
No, the extender and remote MUST be paired at either 418MHz or 433MHz.
Lyndel McGee
Philips Pronto Addict/Beta Tester
Post 3 made on Friday June 15, 2007 at 05:05
Ernie Bornn-Gilman
Yes, That Ernie!
Joined:
Posts:
December 2001
29,846
On June 13, 2007 at 23:48, bmcclean said...
I have a EU remote but can get a US extender much cheaper,
I question if the Extender can except both RF frequencies
(433Mhz and 418Mhz) since Receiving a Frequency is not
the same as sending one when it comes to FCC rules.

Perhaps sending and receiving are different per FCC rules; I'd like an example of how you mean that they are different. There are obvious things, such as sending is a much higher power situation than receiving; and the mixing frequency of a superhet design receiver might accidentally radiate and must be controlled while transmitting designs have no such other frequency to deal with.

But when it comes to any kind of simplex (one-way) communication, the receiving frequency must be the same as the transmitting frequency. Otherwise the receiver will not receive anything. Thus 433 MHz and 418 MHz units must be paired with units of the same frequency. An EU unit should not have the same transmitting frequency as a US unit, so must have a receiver to match.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 4 made on Friday June 15, 2007 at 18:50
Lyndel McGee
RC Moderator
Joined:
Posts:
August 2001
12,645
Ernie,

Isn't your 2nd bloated paragraph exactly what I said?
Lyndel McGee
Philips Pronto Addict/Beta Tester
Post 5 made on Saturday June 16, 2007 at 22:06
Ernie Bornn-Gilman
Yes, That Ernie!
Joined:
Posts:
December 2001
29,846
Yup. But...
On June 13, 2007 at 23:48, bmcclean said...
Question. there are a number of RF Extenders around for
both Pronto and Marantz and they are listed as being US
or EU versions but I would like to know if they really
are physically different or is it just a marketing jargon.

It specifically answers this, and
I question if the Extender can except [accept] both RF frequencies
(433Mhz and 418Mhz) since Receiving a Frequency is not
the same as sending one when it comes to FCC rules.

it specifically answers this after the first paragraph said that the FCC rule thing isn't an issue. I've been taught to know more than the bare bones of how to solve a problem, and that has served me well. So, yeah, I write more than the simplest facts.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 6 made on Sunday June 17, 2007 at 08:17
jimbobhaslam
Long Time Member
Joined:
Posts:
January 2007
159
For a cheap and functional alternative look at the powermid IR transmitter/receiver. I have a UK RU950 and the RF receiver/IR transmitter part work perfectly with RF from my pronto. Obviously you use the ability to address several different one individually and you loose the facility of having multiple IR emitter wands but if all the equipment you want to control is in one location it works. I picked up just the part I needed (not the full pair just the receiver) on Ebay for a tenner.

Also if you have any RF equipment using the right frequency it MAY be possible to learn the codes using the Powermid (possibly with a following wind and a lot of luck)
TSU9400


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