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| Reviews Summary for Jetstream JTW270 compact crossneedle 140-525 MHz |
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Reviews: 2
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Average rating: 2.5/5
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MSRP: $59.95
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Description: Frequency range: 140-525 MHz
Input impedance: 50 ohms
Power scales: 15 and 150 watts
Power accuracy: 10% at full scale
Minimum input power: 1 watt
Connector: SO239
Input power: 12VDC
For the 220 MHz band, power readings must be converted. Multiply the meter reading by 0.7 to get the true value. For example, if the reading is 50W the actual power value is 35W. A meter reading of 10W would be an actual value of 7W etc.
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Product is in production.
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More info: http://www.jetstream-usa.com/jtw270.shtml
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write your own review of the Jetstream JTW270 compact crossneedle 140-525 MHz.
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RFSOAKED
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Rating: 5/5
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Aug 4, 2010 14:37
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Nice for the Price!!
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Time owned: more than 12 months
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Only off by a few watts compared to my Telewave meter on the bench. I was selling my extra one on ebay and was told by a possible buyer that it had bad reviews. All i see is one bad review here thats just badmouthing the product without any facts.
How do you know its not accurate? What did you compare it to? How did you test it?
I compared mine to a Telewave 44AP and the difference is about 3w on VHF and UHF. I could easily adjust it internally if i wanted to and make it match, but its a +/- 10% accuracy, at 50w a 3w difference is less than 10%, which makes it within tolerance!!
I also compared SWR readings against my network analyzer, very very close. The meter would read a 1.2:1 when i was showing a 1.5:1, so again very very close.
All of these plastic cased meters with the plastic lens have the static problem the other reviewer mentioned. Rubbing your fingers across will cause a static charge to build up. Use a soft cloth and some antistatic spray, or an antistatic tv/lcd display cleaning cloth to fight the static buildup. I keep my shack at an ideal humidity and never have much of a static problem but its possible with any of these plastic meters.
As for the comment on their antennas... I have a JTB3 thats been through some rough winters and still works great, i also have a JTB2 on top of the other tower. Work great, low SWR across the band, and the quality of the workmanship is better than some of the Diamond crap i have had in the past. The fit and finish of all the parts is better, the antenna doesn't loosely fit in the mounting tube, etc..
I have had nothing but problems with MFJ products and i won't even go there...
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KE4EX
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Rating: 0/5
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Jan 26, 2010 19:40
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New Junk Champ.
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Time owned: 3 to 6 months
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Not close to being accurate.
Run your finger tip over the lens, needles follow.
By the time I would return it to R&L restock fee and pay return shipping, HA !!!!
The VHF antenna was Junk also,,,,,,,,,,,,
STAY AWAY FROM JETSTREAM-JUNK.
IT IS A WINNER, BEATS MFJ.
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