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| Reviews Summary for TE Systems 1452G |
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Reviews: 21
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Average rating: 4.9/5
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MSRP: $525
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Description: 350 watt 2m mobile amp
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Product is in production.
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More info: http://
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N4LI
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Rating: 4/5
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Sep 29, 2010 18:39
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Very Good.
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Time owned: more than 12 months
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I’m a QRP guy. There really is something fun, challenging and elegant about working with as little power as necessary. But even I would agree that life is, indeed, too short for VHF QRP.
So, I bought a 1452G. Yes, it’s a hoss. When the band opens, I can work EVERYTHING I can hear, even the weak stuff that the receive preamp makes audible. Ultimately, that’s the whole point of a VHF amp. Ain’t it?!
My experience, though, has not been trouble-free. My unit came with a bad T/R relay. It took two trips back to L-A to get the issue fixed. But, Dave at T-E was sensitive to my issue and turned the amp around in a reasonable time frame. Plus, he generally answers the phone himself.
Once I got the amplifier on-line, I have been very happy with it. The only caveat I would give (other than the overdrive issue discussed by others) is to keep the unit cool. The box makes a small footprint, so it strains to dissipate the generated heat. After a minute or two of operation, the heat sink gets VERY warm. Fortunately, a fan will keep that issue in check. But, plan on it. A fan is NOT optional.
T-E Systems products are not cheap. But, I think they are worth it.
I can’t give the 1452G a “5” considering the T/R defect. I am giving it a “4,” since there is no “4.5” option.
Peter, N4LI
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K7ULS
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Rating: 5/5
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Sep 3, 2010 00:22
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Great amp
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Time owned: 6 to 12 months
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26 EME qso's so far with this amp with either a 2m12 or 2m7 at moonrise. Have a cross flow fan on top to keep it cool when running WSJT and input around 21 watts = 375 out.
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K7ULS
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Rating: 5/5
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Mar 23, 2010 20:25
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Great Amp
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Time owned: 0 to 3 months
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Got this amp a couple weeks ago got the 1452GS with the higher duty rating for running WSJT EME 24 watts in and 350-400 watts out depending on frequency. Number of EME qso's so far most recent using a single M2-2M7 to a 4x12 800w station at moonrise. I use an Astron RS-70m to power it up.
Thanks Dave
http://tesystems.com/
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W3RXO
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Rating: 4/5
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Jun 19, 2009 09:56
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Best square foot of electronics you can buy!
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Time owned: more than 12 months
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I rated it a 4, only because of it's lack of overdrive protection. It's a GREAT AMP!! Advertised as a 350 watt amp, mine does 400+, with about 17 watts drive, which is the most I would ever drive it with. Typically, with 10-15 watts of drive, I get 375 out. My very first contact with it was from my QTH in Pomona, to a fellow in Bakersfield, more than 125 miles, OVER THE MOUNTAINS!!! Second contact was into Santa Barbara, closer to 200 miles. I had a good receive signal on both stations already, but when I turned on the recv pre-amp, it brought them up considerably, without a noticeable jump in noise level. The receive pre-amplifier is FIRST RATE. I wish TE would build in some protection circuits, for over drive, high SWR and such. Otherwise, I don't believe you will find a better square foot of electronics gear, anywhere.
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W5HG
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Rating: 5/5
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Mar 17, 2009 10:08
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Great Amplifier
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Time owned: more than 12 months
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I love it. The amp has worked flawlessly. I get anywhere from 350 to 400 watts output depending on the frequency. No complaints over customer service either. I made a few calls to ask about a mod to keep the amp cooler. Nothing but good service. The only thing I would suggest to them would be a TE SYSTEMS WEBSITE. Most people want something to look at and study for a while with good photo's and customer feedback. This site is wonderful for reviews but TE Systems would sell more if they would impliment a good website. My two cents... But maybe they have all the business they need...lol
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WV4I
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Rating: 5/5
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Jul 10, 2008 08:48
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1452G x 2
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Time owned: 0 to 3 months
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My second 1452G. Sold the first one to give 2M SSB a rest for a while. Bad idea. Prices have gone up for all radio gear, but this is not an MFJ (I mean Mirage), and with TE you get high quality. Also, this amp no kidding outs out a CLEAN 375W plus. The TE amp worked perfectly out of the box, purchased directly fm TE, no hassles, etc. For details, see my 2006 review of the the 1452G. Ditto for this one.
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W4HEY
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Rating: 5/5
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Aug 29, 2007 04:50
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High Quality Amplifier
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Time owned: 0 to 3 months
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TE makes high quality, almost perfectly constructed amplifiers. Upon removal of the cover, the interior is well soldered and neatly arranged -- unlike those other M*r*g* amplifiers. In regards to the previous post, the TE is not idiot-proof like the M*r*g* amps, 25 Watts input MEANS 25 Watts input, if they wanted to allow 25-50 Watts input, then they would have stated 25-50 Watts input. I receieve over 300 Watts ouput with only 5 Watts input, this is more than sufficient for "the lowest amount of power necessary to maintain adequate communications". =)
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F5DQK
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Rating: 4/5
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Apr 21, 2007 07:41
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Good amp, but absolutely no RFin overload protection !!!
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Time owned: 3 to 6 months
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Attention, this amp accepts only 25W input MAXIMUM !!! Despite of other models like the Mirage B-5030-G or the HL-350V Tokyo Hy Power, it has no RF input protection, that's very dangerous for its life!!! The another amp equivalents are accepting 40 to 50W RFin power !!
With an IC-706MKIIg and its easy oscillating mike input with RF input reinjection, the 5 MRF247 el stages were killed in less than 5 seconds, even with its RF output restricted to 20W.... After repairing, I'd strap the driver stage with a little coaxial cable permitting to get about 380W out safe power, now with 40 to 50W full input. Sure that its conversion yield is far better than the other given brands one, and this with the same Motorola transistors needed (Excel curve on request).
But why do TE-Systems not have any eMail address ?? And why has its operating and service manual so an incomplete part list ???
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WV4I
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Rating: 5/5
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Aug 13, 2006 06:01
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Works FB.....
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Time owned: 0 to 3 months
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Purchased new, and works great right out of box. Only using for SSB and looks like 400w out with a whistle at 15w in, on Bird 43 to 1.1:1 load, and pulling about 50a on my also new Astron RS-70M. More than 15w in (15w in recommended by factory, 25w max) yields very small increase in power out, probably just dirties up signal? Preamp seems to raise signal to noise ratio, not just make everything louder. Amp keys via RF or hard line, your choice, and T/R hang time is adjustable via rear mounted pot, or by switching between FM and SSB/CW modes (only changes hang time, not amp class). There is NO reverse polarity or high swr protection on this amp. There is over temp protection. Cool fins barely warm at 400w out SSB. Fit and finish of components is high quality, except I think you could break front switches if you worked at it. They are flat, flip up/down switches, and I think rockers would be better, especially if used mobile, less prone to breakage. Avail with N or UHF connectors. Amp was shipped and received promptly, and person taking order, answering questions, seemed quite knowledgable. At just over $1/watt, it is a good deal, especially if you already have a 50a plus 12v power source to power it. No web site, not sure why, but phone is 310-478-0591.
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AD5TH
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Rating: 5/5
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Jul 17, 2005 14:37
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Performs as advetised!
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Time owned: 0 to 3 months
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15W in and 400W out on Mirage MP-2 true peak reading meter. I can get 450 out with more drive but it is not recommended by TE Systems. Photos of inside and outside plus owner's / service manual with schematic and parts list at this link:
http://www.ad5th.com/te-systems-1452g.html
Exciter is IC-746Pro and using hard keying through ARB-704 key line buffer.
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