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| Reviews Summary for CleanRF Demodulators and Samplers |
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Reviews: 4
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Average rating: 2.8/5
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MSRP: $140
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Description: Inserts into your station's coax lines to monitor the transmitted RF energy on a scope
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More info: http://www.cleanrf.com
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write your own review of the CleanRF Demodulators and Samplers.
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NU9N
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Rating: 5/5
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Jan 24, 2009 16:36
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An Excellent Accessory For Any Ham Shack!
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Time owned: more than 12 months
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The CleanRF RF Demodulators and RF Samplers work as advertized and are an excellent value for anyone needing precise monitoring of their RF envelope or amplifier linearity.
While the inside components are basic, they are high quality and are the exact values needed to properly calibrate for the power being used.
Yes, you could build your own RF sampler or RF demodulator and save a few bucks, but for those who want to just plug and play, these units are very simple to install. By time you purchased all of the parts (case, components, cables, and adapters needed), the time and cost to build one yourself starts to add up.
I have owned my "Splatter View" for over two years, trouble free, and have found it an indispensible part of my RF monitoring, knowing what's going on at every instant.
As far as I'm concerned, every serious ham should have the ability to properly monitor their RF signals, and these units make it simple to do so when used in conjunction with a good oscilloscope.
-John Anning, NU9N
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K9MHZ
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Rating: 0/5
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Oct 27, 2008 16:36
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Money for nothing
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Time owned: more than 12 months
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Well, after reading these reviews I figured I'd take a deep breath have a look inside of mine.... 1 small capacitor, 2 resistors, 1 small choke, and 1 diode. That's all, folks.
You're much better off using a non-invasive coil wound around a torroid OUTSIDE of your coax. No insertion loss, no phase shifting due to the small coupling cap, no snake oil.
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N0SP
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Rating: 5/5
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Oct 12, 2008 19:09
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Exactly as advertised
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Time owned: more than 12 months
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I have two of these units, one for AM transmission, other for SSB use with the amplifier. This unit is a quick, clean, easy way to interface your station with an oscilliscope. Not much is "cheap" these days, (except for some hams) it's not made in China, looks sharp, takes up little space and come complete with every connector and cable needed for immediate installation. You don't have to buy ANYTHING to put this to work. Instructions are easy to understand.
As for the previous reviewer's negative comments... notice he says nothing about it's performance. He complains "I could have built it myself!" Yes, I knew from the start that I could home-brew it. Many of us can home-brew lots of things we buy. I saw hams with home built demods for their trapezoid display when I was 13 years old. This AB9 guy (BTW, his call not in database) was evidently unaware that it's a pretty simple circuit. I remember teasing a ham who paid $39 for the "RX Noise Bridge"... I opened it up and found a bunch of styrofoam, two diodes, a resistor, and a pot. He simply said "It does what I want"... Well, so does the CleanRF gadget. Works fine.
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AB9PZ
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Rating: 1/5
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Feb 5, 2008 14:55
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Expensive and not worth it
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Time owned: more than 12 months
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They came out with this line of RF samplers to monitor your transmit signal for viewing on your oscilloscope. Another option is to buy two units to verify linearity when using an amplifier. The webpage is very well done and professional, giving the impression of an intricately-designed product. Nothing could be further from the truth. Opening this VERY EXPENSIVE product yielded just a very few passive (resistors, capacitors, diode) components soldered between some connectors......I really felt like a sucker. I contacted the "company" about this, thinking that there must be something missing or some kind of a mistake, and they gave me an incredulous reply about "recouping developmental costs, etc". This item is NOT WORTH THE PRICE. With a simple schematic, and with maybe $20 (NOT $150+) in new components, any amateur could build his own unit.
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