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| Reviews Summary for N8XJK 12Volt Boost Regulator |
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Reviews: 13
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Average rating: 4.8/5
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MSRP: $155
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Description: This Boost Regulator was designed to supply a constant voltage to the radio or other equipment regardless of the battery voltage. The Boost Regulator is a switching power supply that regulates the output and boosts the voltage to your equipment. The increased voltage prevents distortion commonly seen on modern mobile radios. It also maintains transmit power and allows longer operation from a battery.
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More info: http://stores.tgelectronics.org/Detail.bok?no=7
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K9JM
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Rating: 4/5
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Apr 8, 2007 17:06
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Chassis is like a tank
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Time owned: 0 to 3 months
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I really liked the design concept when it appeared in QST. The QST article had many flaws in the schematic, including shorting the battery through the fuse! Most of the problems were fixed, except that the battery under voltage circuit will falsely trip way too often. This problem is easily fixed with the following modification: First Remove C21. Second: Add a capacitor (approx) 10uF >= 16V from pin 13 to pin 12 on U2, with the "+" end going to pin 13. You're done!
I have not noticed any RFI. I key the boost when transmit, making a "push to talk battery". No observed problems. The chassis provided by Tim is hefty and can easily take a few rounds from a 22 rifle.
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K9FN
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Rating: 5/5
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Apr 3, 2007 18:49
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Absolutely quiet!!!
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Time owned: 0 to 3 months
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I operate HF mobile exclusively, and I sometimes am just parked with the engine off... but without the engine running, my IC-7000 puts out only about 1/2 power... so I felt that a battery booster was essential. I tried another product that performed as advertised, but it generated so much noise, that many signals were totally masked... Then I tried the N8XJK booster, which not only allows me to run full power out while mobile when parked with the engine off... it is ABSOLUTELY QUIET... It is also built VERY well. I wish I knew about it months ago when I first started mobile operation.
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VE3NFK
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Rating: 5/5
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Jan 21, 2007 13:13
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Very happy
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Time owned: 0 to 3 months
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Unit does a great job of boosting battery to 13.8 (or what you set from about 12-15V).. No discernible RF noise; and high efficiency. Compact unit. Quality components. I chose to build the kit version - I would only recommend this avenue to those who 'want' to build a kit - it is definitely not cost-effective! Kit with case is $115 and built is $130 and it takes a few hours to build with some tricky drilling and coil winding. That said, Tim was most helpful with the couple of problems I had - and I ended up with another circuit board to build a 2nd unit.
I checked out other reviews first; and had a poor experience with another vendor.
Very satisfied... 73 John VE3NFK
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