Dimensions:155Wx63Hx103Dmm. TOP > AMATEUR RADIO PRODUCT > PRODUCTPERIPHERAL EQUIPMENTS > SWR/POWER METERS. MFJ MFJ Diamond RH77CA HT Scanner 2m/70cm Ham Radio Amateur Antenna.DIAMOND ANTENNA CORPORATION. StumbleUpon The Diamond SX-200 measures power up to 200 W and SWR from 1.8 MHz to 200 MHz.Amazon.com: swr watt meter MFJ-4275MV MFJ-4275 Original MFJ Enterprises Switching.
Power SWR Test: 3 Watts, Connector: SO-239: Fixed-mount CB Radios - The first question you might ask yourself is whether or not you need an SWR meter. What’s the basic kind I should look for?Buy Diamond Original SX40C 144470 MHz Cross Needle SWR/Power Meter - Power Ranges: 30/300 Watts, Min. When I look at various products there’s all sorts of types. Insertion loss:Less than 0.1dB.I’m going to ask for an SWR meter for Christmas. Power display range:30W 300W 3KW Accuracy:☑0 (F.S.) Minimum power at SWR measurement:3W.
They are much more accurate when measuring SWR because SWR is a relative, not an absolute measurement.To get better accuracy, you have to move up to something like the Elecraft W2. At best, their accuracy is ☑0%. They are both just under $100.These products are not really very accurate when it comes to measuring power. A couple of relatively inexpensive products in this category are the Diamond SX-200 and the Daiwa CN-501H. I currently do not use an SWR meter for HF.What might be useful is a combination power/SWR meter.
Diamond Swr Power Meter Portable Antenna Experiments
It’s just that there are such great options for a versatile combo meter/tuner/switchbox all in one package at a decent price, that it was worth a mention.That’s an MFJ-948 that Rob is talking about, rather than an MFJ-498, which is something else entirely. It’s really convenient when tuning up some portable antenna experiments.Sorry to go so far beyond the bounds of the original question. The meter is pretty great to have around too, it gives a quick confirmation that everything’s working right without having to wade through the 450D’s panel controls.Another 450D feature I didn’t know about until stumbling upon it just this past year, the CS/Voice front panel button can be re-programmed to momentarily shoot a 10 watt carrier to the antenna line and switch the 450D’s meter to SWR. I’m having fun with all kinds of experimentation that I never knew I wanted to do until I got this tuner and started using it. The ability to tune non-resonant antennas (way beyond the 450D’s 3:1 tuner range) and a 4:1 balun for balanced line and random wires opens up a lot of doors for a new ham too. I seldom actually use my MFJ-498 as a tuner, but as an SWR meter, power meter, and antenna switch box, it’s worth the MSRP ($170) right there.
It covers up to 170 MHz, which means it doesn’t cover 70 cm, which is annoying. :-)The one I find I use the most, though, is my MFJ-259 antenna analyzer. The tuner arced over internally, burning out some switches, and I deemed it not worth fixing, since I had gotten it from another ham essentially for free, I figured I had gotten my money’s worth out it.I have a “collection” of SWR/power/analyzers these days:Daiwa cross-needle SWR/power meter, good through 2mCollecting test equipment can become a hobby all its own (and expensive, also). Some folks have complained that the inductor switch gets flaky after a while, but that seems to be easily fixed/replaced (MFJ stocks a lot of replacement parts for their stuff).I had a ‘Jr.’ version of this tuner (MFJ has a large number of variants) and it ran OK until someone tried to feed it one field day into a trap vertical that was built ‘upside down’. Better to be conservative.
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