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Reviews For: ACOM 1000

Category: Amplifiers: RF Power - HF & HF+6M

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Review Summary For : ACOM 1000
Reviews: 198MSRP: 3250 USD
Description:
HF+6M Linear Amplifier

The ACOM 1000 HF Linear Amplifier is the world's best value in an amateur HF amplifier. The ACOM 1000 gives you a comfortable 1000 watts output on all amateur bands from 160 through 6 meters.
Power Output: 1000W PEP or continuous carrier, no mode limit. Uses single 4CX800A (GU74B)
Product is in production
More Info: http://www.acom-bg.com
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
151984.9
CT1HZU Rating: 2008-07-28
Great piece of gear Time Owned: 0 to 3 months.
This is my first HF amplifier. After a long research an evaluation period, I decided by ACOM 1000. Although the 2000a was the one I would like to have, that would make me wait at least one more year to buy it. So I decided myself to buy this one, since in terms of power, it almost reaches the legal limit here in CT (1.5Kw for the top class), and actually I can run it 1.2Kw so far, on my 4 element 10 meter yagi.
About performance, well the only drawback I can see so far is the stand by time one has to wait when turn it on (120 seconds). On the other hand after that period of time, it works perfectly. One thing I don’t like to hear when QSOing is the relay change state. There’s nothing wrong with it, is just not… elegant. Well, on the ACOM 1000, that doesn’t happen, even on Full Break in CW, one cannot hear the change state of the relay. That is a BIG plus for me. Another big plus is the linearity of the modulation and signal, when operation digital. By saying this, I must also say that I leave in a 7th floor and don’t have ground connection. I was in the beginning a bit afraid of RFI/TVI, but that was no problem at all, even at full power. By several occasions, I tested it with others, by transmitting with the amp turned on and off. The difference was of course the signal, but the audio was the same, I mean there was no change on the voice tone. If I don’t tell I am using an amplifier, no one notice…
When operating digital, and again, according to others, the signal presents very stable and clean. Made several RTTY and PSK QSOs straight at 1 Kw, and could not notice any power drop. That means the power supply is far enough for the job.
On lower bands, I only used it with 400 Watts output, since I only have a longwire connected to a magnetic ballun, rated for a maximum power of 400W.
One night during a late time 10meter ES, I spent almost 2 hours at 1.2Kw and the temp reached 72 Deg. Celcius, not much I believe…
Yesterday night, I could hear no one on 10 meter… As soon as I started to call CQ, a lot of people answer all over Europe as well some cluster spots were posted… “sometimes one have to do there own propagation hi hi”
Hope to contact you also !!
73’s de
CT1HZU – Pedro
IT9OPJ Rating: 2008-05-20
best amp Time Owned: 0 to 3 months.
Fantastic amplifier much easy one to use silent more marks them clean than 1kw out with only 50watt in all the possible protections to test of error, advised to 100%.
it9opj Giuseppe
K8IA Rating: 2008-03-27
Solid Piece of Equipment Time Owned: 3 to 6 months.
The Acom 1000 is really a terrific little amp. Very easy to tune, 1000-1200 watts output and very quiet. The LCD screen gives you more operational info than you would ever need.

It has been employed here in contest service since we got it (K8IA/N7RQ) and has had qute a workout and hasnt missed a beat.

Recommended!

73, Bob K8IA
Arizona USA
MW0EDX Rating: 2008-03-03
Excellent; almost impossible to buy 2nd hand ! Time Owned: more than 12 months.
This is the best amplifier so far. Why ? Try to find a 2nd hand one...See ?

73 !

SP5SS Rating: 2008-02-16
Super amp !! Time Owned: 3 to 6 months.
Great contact with the Acom staff - Stan super specialist !! Amplifier working as written in the factory manual instruction !
p.s
I hope this post will stay here in the future !
SV8RX Rating: 2008-01-07
Absolute satisfaction Time Owned: 6 to 12 months.
What can I say about this state of the art piece of radio equipment? There are so many good reviews that I feel I have nothing to add. But let me say just a few simple comments. I work with it more than six months. I have participated in several contests during this period. Among them there were some very demanding ones, as CQ WW RTTY for example. Lots of hours of continuous working without any complain. Every time I am sitting in my sack beside my ACOM1000 I feel proud and full of confidence. Before I get it I knew that it had a very good reputation, but my cohabitation with it, it is beyond my expectations. What are its hot features?
Absolutely silent (whisper fan, vacuum relays)
Very easy tuning (attenuator in order to tune with full driving power)
Withstand 3:1 SWR transmitting with full power (no external tuner required)
Excellent liquid crystal control monitoring 12 parameters
Finally some words about service. I need it only once. A minor problem resolved at once. People in ACOM are very friendly and really helpful. Simply the best service I have ever experienced in my 30 years amateur life.
CU2JT Rating: 2008-01-07
Addendum Service Time Owned: 0 to 3 months.
I will have to modify my first experience as described in my review of Dec. 30, 2007. ACOM did respond to the review and helped me to localize and fix the problem, a loose GU74 tube. When the tube was properly put in its socket, the amplifier worked just as fine as described in many reviews.

Next time, I will sit on my hands...
ON8DM Rating: 2007-10-25
excellent Time Owned: 0 to 3 months.
With the need for some xtra punch on top band i replaced my sb221 with this one. Compared to my headkit this is a very silent amp. I am missing the instant power when turning on the amp like the heathkit
So far so good.
Expensive but excellent
PE1CZG Rating: 2007-10-07
Best AMP ever owned! Time Owned: 3 to 6 months.
This is my thirth commercial Amplifier I owned since my start of this hobby 30 years ago. Till now this is my best investment on a commercial Amplifier. The Acom 1000 works as advertised and described by many others: it's totally silent, tuning and loading is done within 15 seconds and all the information on the display is very accurate. I did compare the output with my Bird 43 and when the display on the Acom shows 1000W output, it's also exactly 1000W on the Bird.I did tested this on all bands with different outputs. The fact that the meter (display) in the Acom is reading PEP is a nice feature as well. The maximum output on all bands is around 1200W except for 50 Mhz. On 50 Mhz the output is in my case 1050W and anode current is 700mA then which seems to be the max. More than 700mA current give's a warning first and then it protects itself. The protection circuitry is absolute amazing: I was TX-ing with around 1Kw out and the VSWR went to infinity (broken coax cable) The Acom went into protection immediately without any damage. Just push the "oper" button and there you go again.
If you are looking for a reliable amplifier, and don't want get sweaty hands during tuning and loading with full output (please no flash-overs or a big "bang") then the Acom 1000 is the Amplifier: silent, high output, very professional build with high quality components and also important: absolute fool proof. A spare tube can be found still very cheap.
The only dislike here is the size of the display: it's a bit too small in my opion.
G0JJG Rating: 2007-06-17
Excellent amp Time Owned: 3 to 6 months.
I traded in my old SB220 for the Acom 1000. Main reason was to add topband to the system here. I miss the 'instant' warm up on the Heathkit, but the speed of tuning on the Acom with the load cap tuning indicator helping is incredible - it takes no more than 5 seconds to switch band and know tuning and loading is spot on. This more than makes up for the warmup - the amp is just always in standby and ready. Finally the protection is an eye opener - it is ready for all the usual mistakes. Truly a superb addition to any serious HF system