-------- Forwarded Message --------
Subject: High Quality Receive Preamplifiers
Date: Fri, 3 Mar 2017 03:42:23 -0800
From: M Lech <grandnationalradio(a)gmail.com>
To: M Lech <grandnationalradio(a)gmail.com>
Greetings fellow Repeater Builders and Communications Aficionados,
As many of you know, Chip Angle (N6CA) of Angle Linear, a luminary of
the RF world, retired from his highly successful business last year
after a few years' consideration. For over 35 years, he hand-crafted
some of the industry's most sought after products that aid our
communications systems in being all they can be. Like a Swiss
Clockmaker, he is a craftsman in an arena requiring precision and
quality. We all were sad to see his great products become unobtanium,
but we can all appreciate an accomplished man wanting to close a chapter
of his life & enjoy the fruits of his labor.
Having known Chip a number of years now, and being aware of his intent
to retire, I'd reached out to him in a couple discussions of the topic.
I offered a true interest in learning, continuing the essence of his
products, and hopefully enjoying similar success as he over time. We
reached agreement, and he gave me many helpful pointers to get started.
I am extremely thankful for his willingness to work with me & his
invaluable help. He is not only a skilled craftsman, but a true
gentleman. Again, a big thank you, Chip!
And so, the torch has been passed! As with any new venture, there will
be a process of ramping up. The intent is to offer many of the same core
elements formerly of Angle Linear, and of like quality. Time will tell
exactly the shape taken given market demands, customer feedback, the
ongoing learning process, and evolving technologies in general.
Today, I am equipped to offer standard high quality PHEMT preamplifiers.
Under design are new High Level (High Intercept) preamplifiers as well.
Custom fabricated filters, splitters and other accessories are not
available today, but are anticipated later. As a stepped process, the
idea is focusing on the essential items & graduate into greater
capability as time progresses. Eventually 'total-package' type solutions
would ideally be available such as drop-in multicoupler systems or
single system cavity-plus-amplifier assemblies. Bear in mind, as opposed
to more mass production items, this remains a small-scale business
producing custom-to-order products. While standard guilelines of design
exist, each is tailored to the individual user's need within practical
limits.
The currently available PHEMT preamplifiers enjoy the same operating
specifications as their Angle Linear predecessors. They are
unconditionally stable, port matched, a +/-10% optimized operational
bandwidth, have moderate gain (12-22dB dependent on band), and enjoy
very low Noise Figure (.4dB typical). The chassis is a rugged fully
shielded cast aluminum enclosure with connectors at its top, power
supplied through an RF-bypassing feed through capacitor & ground lug
along with transient suppression diode. Standard connectors are Type N
jacks. Other connector types available by special order (BNC, TNC, SMA).
Our preamplifiers can be cascaded with high-Q filters/cavities without
worry of oscillation or skewing filter responses.
We are currently equipped to offer primarily UHF (400-520MHz) band
preamplifiers. Other bands will be available as parts stock is
accumulated. Standard pricing is $120 per unit plus shipping, and
turn-around is typically between 14 and 45 days depending on stock
conditions. (Chassis and other large parts are batch ordered and not
quantity stocked at this time)
Please contact us with your requirements. We look forward to helping you
optimize your communications system!
Regards,
Matt Lechliter
W6KGB
Grand National Radio - High Performance RF Solutions
by W6KGB