[hpsdr] PennyWhistle - Call for Comments

[Walter Holmes]

1. BNC connectors sounds the best to me. Already have the tools to create
jumpers for that. BNC connectors are cheap and much easier to come by.
2. Keep it simple sounds great. Or provide the difference for those that
wish to have it the other way.
3. I personally prefer the Atlas approach. The bare board, and the component
kit separately, everyone wins.

Thanks,
Walter/K5WH ... 

-----Original Message-----
From: hpsdr-bounces at lists.hpsdr.org [mailto:hpsdr-bounces at lists.hpsdr.org]
On Behalf Of Graham / KE9H
Sent: Friday, February 06, 2009 5:05 PM
To: HPSDR discussion list
Subject: [hpsdr] PennyWhistle - Call for Comments

***** High Performance Software Defined Radio Discussion List *****

All:

Before I do a layout of the (hopefully) final
version of PennyWhistle, I would like to call
for comments.

If this is something you would be interested in,
please review...

http://hpsdr.org/wiki/index.php?title=PENNYWHISTLE

It has been updated with an "off the shelf" output
transformer from Communications Concepts, as well
as the power output versus frequency plots have
been added.

Questions:

Do you prefer BNC versus the SMA connectors shown?

Considering the differences in power output at
6 Meters versus HF, should a relay be added that
would switch the output peaking between HF and
6 Meters, or is the performance with a fixed
capacitor at one setting or the other adequate
for your purposes?   (that is, keep it simple)

Is a bare board kit preferable if it saves multiple
months for availability?  Are you comfortable
building a kit with about two dozen SMT parts?

I have a suggestion from Phil H to add a feedback
winding to (optionally) reduce gain and increase linearity
when used as a driver for linears.

I have a suggestion from Lyle J. to try the RD15HVF1
in place of the RD16HFF1 transistors to increase
performance at 6 Meters.

--- Graham / KE9H

==

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