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[OM] Re: T45 Flamethrowers - ANTENNA PARTS #

Subject: [OM] Re: T45 Flamethrowers - ANTENNA PARTS #
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Fri, 27 Jun 2008 12:42:18 -0400
Thanks, I'll give it a go.  Looks like a good deal at about $10 per 
transmitter.

Chuck Norcutt

Johann Thorsson wrote:
> I got this from Digi-Key (http://digikey.com) as I said in my previous reply 
> to Chuck.  You need to buy both the antenna and the antenna base:
> 
> Antenna: ANT-433-CW-RH (http://tinyurl.com/6zg4uz)
> Base: CONREVSMA004 (http://tinyurl.com/6qb3fv)
> 
> Beside making your remotes much more pro looking than if using wires, it is 
> much more rugged.  There are other variants to this antenna modification if 
> you don't want to put any money into it, or if you don't want to have some 
> wire sticking out of your transmitter.  Here is one that I would e.g. 
> consider: http://tinyurl.com/4kugtp
> 
> I  have had not autofiring problems with the 16channel versions, and after 
> this antenna mod on the 4 channel units, they have behaved much better than 
> before.
> 
> J
> 
> ----- Original Message ----- 
> From: "Ken Norton" <ken@xxxxxxxxxxx>
> To: <olympus@xxxxxxxxxx>
> Sent: Friday, June 27, 2008 06:53
> Subject: [OM] Re: T45 Flamethrowers
> 
> 
>> I have three sets of RD616 units. You still get a LOT of false triggers 
>> when
>> you have two receivers in close proximity.  How close?  Well, usually, I 
>> do
>> a three-light portrait setup and can get away with it--but not always.
>> Anything closer than 3 meters will usually give me an occasional false
>> flash.  But in a previously mentioned venue, I've had one trigger another
>> with a spacing of 20 meters.
>>
>> I myself will be looking for the 433 MHz antennas.  What an excellent 
>> idea.
>> I modified one of mine with a hoop of 12-gauge wire.  Works great, but
>> unfortunately, it ended up ripping the trace on the circuit-board.  My
>> feeble attempt to modify a second transmitter resulted in a hack-job worse
>> than a  I like Johann's configuration MUCH better.  I will do the same.
>>
>> As to increase in distance, Chuck?  Well, under ideal conditions, I can 
>> get
>> the stock unit to reliably trigger up to 30 meters.  But in my testing, 
>> even
>> my jerryrigged unit gave me solid results up to 100 meters.  Probably
>> farther, but my neighborhood didn't have a straight street long-enough to
>> verify.
>>
>> Now for the really bad news.  The 16-channels are effectively 1 channel. 
>> I
>> have tried changing the channel on my transmitters to build "groups" of
>> flashes or something as simple as changing the channel to disable the
>> external flashes without having to disconnect the transmitter from the
>> camera.  Changing channel assignments is no guarantee of channel 
>> isolation.
>> I fought this at a big event recently and finally got so frustrated that I
>> ended up just removing the transmitter most of the time.
>>
>> Quote from "The Birds":  "Why are they doing this? Why are they doing 
>> this?
>> They said when you got here, the whole thing started. Who are you? What 
>> are
>> you? Where did you come from? I think you're the cause of all this. I 
>> think
>> you're evil! EVIL!" - Doreen Lang
>>
>> AG
>> http://www.zone-10.com
>>
>>
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