[NLRS] Tohtsu relay power ratings

Mike King - KM0T scsueepe at mtcnet.net
Tue Jul 15 12:08:31 EDT 2014


> Anyone have any experience with the Tohtsu CZX-3500?  I purchased a few of these to share feed lines between a few bands...  (50 MHz / 222 MHz) (144/432)
> 
> The specs on the relays I purchased turned out not to be not the same as indicated on the
> website that I got them from.
> 
> The data sheet for the relays I received say 1000 watts input power PEP for
> 50 and 150 MHz, as well as 800 watts PEP for 500 MHz.   
> 
> The website indicated 2300 watts PEP on 50 MHz, 2000 watts PEP on 150 MHz
> and 1000 watts cw at 500 MHz.  These are the specs I needed and based my
> purchase on due to the power I will be running.
> 
> Anyone know if there are two different versions of this relay?  I have a few old CZX-3500s from a long time ago, these are labeled dc-6ghz and 250 ma at 12v.   Now these new ones just say 230 ma, no freq rating.
> 
> I am thinking of returning these, but the price was good.  Anyone know first hand if these handle 1.2 kW cw?
> 
> Thanks and 73
> 
> Mike - KM0T
> 
> Sent from my iPad


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