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Reviews For: GEMINI DX1200

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

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Review Summary For : GEMINI DX1200
Reviews: 6MSRP: 2750.00 US dollars
Description:
Solid State HF Amplifier 1200 watts pep output 1.8 mhz thru 70 mhz Touchscreen display Two LDMOS devices in Final . each rated at 1150 watts output. Three output jacks, Can operate via Cat control or instant automatic band selection in less than 10 microseconds upon receiving a RF signal. Vacu Input power can be factory set at 10, 20 or 50 watts . Vacuum relay switching circuit. Handles 50 wpm Cw keying . Operates on mains voltages of 100 to 265 volts . Wide ranging fault protection circuits. total weight 40 lbs size height 7" Width 11" and depth 15" .
Product is in production
More Info:
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
1565
M0AFJ Rating: 2022-11-17
Great high power amplifier Time Owned: more than 12 months.
Had my DX1200 for 5 years now, just keeps on working, auto band switching, 3 antenna positions, auto selecting. Also covers 472kHz.
Roger at the DX Shop gives outstanding service, highly recommended
VK2DVM Rating: 2022-02-25
Flawless Time Owned: 0 to 3 months.
Having purchased the Gemini 2 1.2k for 2m, and very happy, I pulled the trigger on the DX1200, and it too was well worth the long wait. Metering is great, and really nice is the 3x power / voltage level selection, so that the amp can be operated at lower peak power levels with higher efficiency. This is great for wsjtx weak signal modes.
The 3x input connectors is perfect for me too, with dedicated antennas for 6m, 10m, and 40m. I recently ordered the Anan 9700dle, and the DX1200 is the perfect mate - with predistortion output ready to go.
K2HFR Rating: 2021-09-20
One heck of a nice Amplifier. Time Owned: 0 to 3 months.
I have owned this Amplifier for the past year and a half. I remain absolutely 100 % impressed with my choice in buying it. ITS WONDERFUL!!! I opened it up and WOW! Its quite the thing. Its solidly built , with top design and tops build quality. Built like a battleship

My bad, I had an occasion to need to ship it back for repair. NOTE/ ITS MY BAD, NOT THEiers. Roger at the Factory could not be a nicer helpful chap. He arranged the shipping from the US to his factory and paid for the shipping back. Much to my amazement the whole process took only eight days back and forth roundtrip. I am back on the air with it and smiling again. BUY IT !!!!!! You will be smiling like me.
GW0GEI Rating: 2021-06-12
Superb amplifier, super clean, and very good value for money. Time Owned: more than 12 months.
I have previously owned a lot of valve amplifiers such as kenwood tl922 alpha 91b OM Power 3500hf and 4000HF, but moved on to solid state amps from Lin Amp UK with the original Gemini hf/6m 1kw plus Gemini 1.2 for 2m and Gemini 4 for 4m and 6m 300w. When I heard Roger was developing a bigger solid state Gemini that covered 4m as well as hf and 6m I pre ordered one. I have one of the first ten of the production model from the very first batch. Its been back a few times for some early upgrades to the heatsink and some other elements to help it on the low bands, and I have had a few firmware upgrades along the way. This amp is super quiet, with just one main fan, quieter even than the original Gemini 1kw. It sits near my desktop operating position quietly and efficiently doing its job on LF dxing HF contests and 6m and 4m contests. I operated cqww cw and ssb and plenty of other big contests with it. Last week I had a sporadic es opening for the whole of the UK activity contest on Tuesday evening and ran solidly with pile up of European and G /p stations for the whole evening. After service and customer service has been superb as usual from the owner. After nearly 18 months hard use in contests and daily FT8/msk144/jt65 operation I am more than impressed with this amp. I drive it with 50w from an ftdx101mp and it follows me around the bands in multi band contests. I have over 124 dxcc on 6m with this amp on ssb/cw/ft8 and it has the added bonus of easily giving me the legal limit on 4m/70mhz at the antenna feedpoint. I use it with Simon g4eli's (free) remote software, written especially for these amps, so I can control it over ethernet link from the other side of the shack or from my house over the network. I have my hf antenna switch on one output, my 6m beam on the second, and my 4m yagi on the third output. The software tells the amp which antenna socket to use on which band. I have 100m feeder runs to get up to the top of the site where my 80m tower is located so I need reliable more than legal limit power levels to give me UK legal limit at the antenna feedpoint. The only problem with these superb amps is that there is by now a long waiting list of months for them, but well worth the wait for the product and the after sales service/advice. I am saving up for a second one for so2r contesting on hf/6m/4m now ! 73 Steve gw0gei (GW9J in major contests)
G4SGX Rating: 2021-03-24
Superb bit of kit Time Owned: 0 to 3 months.
I bought this amp to replace my HF acom valve amp and a 50M & 70M linear all in one MUCH smaller package that fits nicely on my shack table. I used this brand as I previously had a good experience with his 50/70M amp and have had very good experience with the makers support when questions are asked. Very quick answers to emails even at weekends.
Its very well built, comes across as a very sturdy bit of kit. It works a dream, auto switching and just ticks along at UK legal limit. It having two over-rated semiconductors is overkill in a way, even at 1200W but means it runs well under the devices max spec and doesn't stress them out even at max power. 'Bullet proof' comes to mind as its packed with protective circuits. (max swr, temp, PSU etc) to prevent any issues. For that reason there is no ALC input as its just not needed.
I would recommend highly.
VK6YAE Rating: 2021-01-23
Solid as a Rock Time Owned: 3 to 6 months.
When you do your HF Solid state Amp comparisons this Amp sits at the top of the value for money list. It has 100% headroom with 2ea 1.0 KW devices and a lot of cooling. All the relevant information is on the screen in front of you. Input mains voltage from 100 to 265 V AC. Try that with a tube amp! It is very simple to operate and well protected.
It is extremely well made. 43 screws hold the cover in place. A quality piece of kit from a company with lots of solid state Amp experience and great back up. Any questions are quickly and clearly answered by Roger. There is a backlog on orders so you may have to wait a bit but it is worth it. This thing will last for years. It is just ticking over at 1kw out.