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crimso Profile
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Diamond SX-200 SWR meter.


These are well made & reasonably accurate, but I like to have my meter in line all the time, so I can watch my SWR & power readings & with the Diamond that is not possible. But it does watch peak or average power out (PEP) which for a cheapish SWR meter is exellent.
Frequency coverage is 1.8 to 200MHz, power handling is low at 200 watts max, but it has 3 power settings up to 5, 20 & 200 watts.
This meter looks good in the shack, but personally I prefer my cheaper Avair.

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Last edited by crimso, 16/Aug/2009, 2:32 pm
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yamanx1 Profile
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Re: Diamond SX-200 SWR meter.


I have knackered two of these, from a personal pov, I wouldnt buy another, they look and feel good quality, but the inards are crap and are prone to shorting, also be aware that these are badge engineered and not made by Diamond but someone else, and you will see this same unit with different names on emoticon

BTW I have a broken one for spares if anyone wants it emoticon

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John193 Profile
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Re: Diamond SX-200 SWR meter.


I'm afraid I lean to Dave's summary they are nice CHEAP meters and ok for knocking around at 100w but they are poorly constructed, have crap loads of internal capacitance and are barely within tolerance for CB let alone anything else. I have a pile of dead ones (one of them is Dave's) they are easy to fix up but not worth the time or effort.

rating 4/10
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rich 26fb456 Profile
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Re: Diamond SX-200 SWR meter.


just a question! how can this meter be pep when it is not powered from a source???or is it???
29/Sep/2009, 11:13 am Link to this post Send Email to rich 26fb456   Send PM to rich 26fb456
 
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Re: Diamond SX-200 SWR meter.


no it's not powered Rich,

all the PEP mode does is to slow down the needle movement, so you get a little bit longer to look at what the maximum power level is on your voice peaks when you transmit on SSB
29/Sep/2009, 11:21 pm Link to this post Send Email to simon26OD004   Send PM to simon26OD004
 
rich 26fb456 Profile
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Re: Diamond SX-200 SWR meter.


 wow simon that sounds pants! should be powered for real pep!!!! dont get me started on bird meters!!!!!!
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Re: Diamond SX-200 SWR meter.


A sort of averaging sort of delay sort of PEP !!
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posticon Re: Diamond SX-200 SWR meter.


whaaaaat! ha ha ha nice one john!! you should make some! and sell them as average pep!!!!

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maybach52 Profile
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Re: Diamond SX-200 SWR meter.


Well this is an eye opener! I've got one of these and upto five mins ago thought it was a good meter emoticon

It appears I was wrong emoticon In the past whilst operating I've left it in line all the time to monitor power output. I have a Zetagi B300P but with 10 watt input the reading on the meter would struggle to indicate anymore than about 120 watts.

I'm not expecting the full 300 watts from the amp, It a Zetagi emoticon , but would expect more then the 120.

So is it the meter?

I have been told that that the meter only "sees" one half of the power envelope so when it showing 120 on the meter my actual output is in the region of 240 watts!

I don't buy this but a little "clarity" would be nice. Thanks.
   

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Re: Diamond SX-200 SWR meter.


 as standard the ' zetagi b300p ' has two 60 watt transistors ' mrf455 ' 60 and 60 is 120 so i guess 120 to maybe 150 if driven hard is about right,

mark 163fb20

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