eHam.net - Amateur Radio (Ham Radio) Community

Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net


Reviews Categories | Amplifiers: RF Power - 6M/VHF/UHF+ | Linear Amp Gemini 2-500 144MHz 500W Help


Reviews Summary for Linear Amp Gemini 2-500 144MHz 500W
Linear Amp Gemini 2-500 144MHz 500W Reviews: 1 Average rating: 5.0/5 MSRP: $1400 approx
Description: Introduced in Spring 2017, the Gemini 2-500 is an uprated version
of the Gemini 2 300W unit. We have changed the LDMOS to a BLF184XR,
redesigned the RF and filter section and uprated the power supply.

The result is an amplifier that will put out >500W CW with a P1dB
of 480W. It still has the same built in protection for overdrive,
High SWR and Over Temperature.

By optimising the RF efficiency we have been able to build the
Gemini 2-500 into exactly the same outer chassis as the rest of the
300W range.

The 144MHz Gemini 2-500 incorporates the same, sequenced, front
panel switchable 13.8v preamplifier supply on receive. This can be
selected by the operator to be either an output voltage on the rear
panel or a bias tee feed as required.

The Gemini 2-500 is a complete turnkey solution incorporating a 50V
linear power supply so no external PSU is required.


500W output
Ampleon BLF184XR LDMOS
Integral 50V Linear Power supply
Drive requirements 4-25W (specified at purchase)
Advanced cooling for data mode operation
Full protection for overdrive/swr/temperature
Switchable preamp output voltage on RX with bias tee option
N Type connectors on input and output
All aluminium chassis
Compact dimensions - just 270w x 300d x 120h mm
Weight 11Kg
UK Manufactured on the Welsh Borders
Product is in production.
More info: http://www.linamp.co.uk
Email Subscription
You are not subscribed to this review.

Subscribe!
My Subscriptions
Subscriptions Help

You can write your own review of the Linear Amp Gemini 2-500 144MHz 500W.

G8RBW Rating: 5/5 Aug 22, 2017 08:00 Send this review to a friend
Very polished performance  Time owned: 0 to 3 months
I was lucky enough to buy this linear second hand for a good price as an upgrade (I ran 180 watts for several years and then upgraded to over 300 watts and when this did not upset my close neighbours thought I'd go for the full UK limit of 400 watts).
So far it's been a very happy experience with no problems at all. I particularly like that it is possible to talk to the people who design and build these Gemini linears on the phone (and they are VERY knowledgeable!). The amp is quieter than I expected and not stressed when putting out 400 watts of SSB with long overs. Highly recommended!
 


If you have any questions, problems, or suggestions about Reviews, please email your Reviews Manager.