I thought this may be of interest to the group from the MWC group?
Barry
Hello Folks,
After an absence of 12 months, I have decided to resume limited production
of the K9AY.
This model has been re-engineered to provide improved performance:
1. The Control Unit is housed in a Hammond Engineering Die-cast box.
2. The variable termination is a bespoke LED/LDR cell assembly to replace
the Vactrol.
3. A brand new 17dB amplifier using multi-transistors in parallel/push-pull,
each with it is own local feedback provides a much higher intermod spec;
Measured with 2 tones at 0.8MHz and 1.0MHz it provides an IP3 +43dBm and
more importantly an IP2 +90dBm to reduce MW second order intermod in 160m
Ham Band
and LW Broadcast intermod in the NDB Band.
The new amplifier module will be made available to K9AY home brewers.
Full details and pricing will be placed on my web site at a later date.
73s and good listening.
Andy G8LUG
Andy Ikin e-mail: sales@xxxxxxxxxxxxxxxx
andy@xxxxxxxxxxxxxxxx
URL: http://www.wellbrook.uk.com
Wellbrook Communications
The Farthings
Beulah
Llanwrtyd Wells
Powys
Wales LD5 4YD UK
Tel. 01591 620316 Int.+44 1591 620316
Manufacturers of Broadband Loop Antennas
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