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Model Forum / Radio Controlled / Helicopters / March 2005



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Help needed with Tx Crystal replacement

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Paul Woodsford - 27 Mar 2005 13:20 GMT
I have a JR X2610 Tx Rx system and need to change the crystals to a
different channel.

Does this Tx use Dual Conversion or Single Conversion Crystals?

The handbook does not state this information and a Google search has not
clarified the point.

Any help much appreciated.

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Beav - 27 Mar 2005 13:48 GMT
>I have a JR X2610 Tx Rx system and need to change the crystals to a
>different channel.
[quoted text clipped - 5 lines]
>
> Any help much appreciated.

No Paul, only the Rx is dual conversion.

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Beav

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Paul Woodsford - 27 Mar 2005 18:40 GMT
Hi Beav,

I have a JR R700 receiver but I cannot find out if it uses SC or DC
crystals.

Do you happen to know?

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>
>>I have a JR X2610 Tx Rx system and need to change the crystals to a
[quoted text clipped - 8 lines]
>
> No Paul, only the Rx is dual conversion.
Chris Dugan - 28 Mar 2005 00:52 GMT
> Hi Beav,
>
> I have a JR R700 receiver but I cannot find out if it uses SC or DC
> crystals.
>
> Do you happen to know?

Looking here:

http://www.macgregor.co.uk/radio/receivers.htm

it appears to be a single conversion RX, only the R1000DS is dual
conversion. Usually with something like DC you'll find the words printed on
the RX case like JR's ABC&W system for interference rejection.

If you want to be 100% certain contact Macgregor on Tuesday and ask them
they are the UK importers.

Chris
Paul Woodsford - 28 Mar 2005 11:43 GMT
Thanks Chris.

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>> Hi Beav,
>>
[quoted text clipped - 16 lines]
>
> Chris
Beav - 28 Mar 2005 12:36 GMT
> Hi Beav,
>
> I have a JR R700 receiver but I cannot find out if it uses SC or DC
> crystals.
>
> Do you happen to know?

Yeah, no :-) It's a single conversion Rx that unless they've brought out a
new one with an old name.

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Beav

Reply to "beavis dot original at ntlworld dot com" (with the obvious
changes)

 
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