On Mar 31, 2005, at 12:55 PM, Gregory P. Daly wrote:
Any suggestions about protecting the GaAs FETs from VERY LOUD out of
band
signals, without causing nasty intermodulation products? It would be a
shame
to build a killer transverter and waste its excellent performance with
clipper diodes
Now that I have my K2 fully stuffed with goodies... DSP, NB, ATU, Battery,
SSB, 60M, 160M, IO... I got busy on transverters... and have all 3 working...
but...
I plan to use the K2 and transverters, portable, for the June VHF contest. I
use M2 HO loops for the low gain stack to allow quick
the other
bands are active?
73,
Bob, N6CM
- Original Message -
From: Gregory P. Daly [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Thursday, March 31, 2005 9:55 AM
Subject: [Elecraft] XV-50 LNA problems
Now that I have my K2 fully stuffed with goodies... DSP, NB, ATU, Battery
Gregory,
Not inexpensive, but works well:
http://www.dci.ca/
Specifically:
http://www.dci.ca/?Section=Amateur
We installed one of the 2M units on our repeater to eliminate bandpass and
to give a DC ground to our preamp on our repeater system. It was
intolerant of the energy from
. Daly [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Thursday, March 31, 2005 9:55 AM
Subject: [Elecraft] XV-50 LNA problems
Now that I have my K2 fully stuffed with goodies... DSP, NB, ATU, Battery,
SSB, 60M, 160M, IO... I got busy on transverters... and have all 3
working
PROTECTED]; [EMAIL PROTECTED];
elecraft@mailman.qth.net
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Thursday, March 31, 2005 12:53 PM
Subject: Re: [Elecraft] XV-50 LNA problems
Bob
I have an HP435A power meter, I'll look at how much signal shows up on
the 6 meter antenna tonight I
In a message dated 31/03/05 19:42:07 GMT Daylight Time,
[EMAIL PROTECTED] writes:
Not inexpensive, but works well:
http://www.dci.ca/
Specifically:
http://www.dci.ca/?Section=Amateur
We installed one of the 2M units on our repeater to eliminate bandpass and
to give a DC ground to our
Bob:
A simple low pass filter would be nice, but it might not cover all cases.
Eventually I'll be able to make max legal power on all bands, and I might find
myself in a situation where the lower frequency signal damages the higher
frequency transverter. At the moment, I'm only talking about
In a message dated 31/03/05 23:06:29 GMT Daylight Time, [EMAIL PROTECTED]
writes:
I'm thinking external T/R relay is the smart move. If the relay is rigged
to rest in the transmit position, when the transverter is powered off, the
out
of band signal will land in the PA output, I suspect
There are parallels here to two-radio operation for radiosport at lower
frequencies.
Bandpass filtering not only keeps dangerous energy from blowing
things up, but also makes it possible to operate on 1 band
simultaneously, not hear phase noise from the other rig, etc.
And unless VHF activity
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