Sorry I thought I had sent this to the reflector. Possibly someone
else wanted to see my response. So, just in case. 73
Mike Sanders
KØAZ
-----Original Message-----
From: Mike Sanders [mailto:k...@centurytel.net]
Sent: Friday, June 22, 2012 11:47 AM
To: Brian Alsop
Subject: RE: [Elecraft] Happy But Very Sad
Brian, I am not sure you read my email.
I have no S/N or S/N+N ratio reading with the device
I am using in my hamshack. MDS? The IFR 1200 series
of service monitors are calibrated down to .1 microvolt and
down to -120 dbm at just over .2 microvolt. There is a "fine"
tuning on a ring around the attenuator switch that allows for
excursions up or down in signal level.
MDS? I had the attenuator at .1 microvolt and the fine tune
all the way down but still could not lose the signal. My comment
ABOUT -130dbm was a guess. When I bottomed out the attenuator
I still had a USUABLE SIGNAL that I could have worked. That
being said and all the guesses and assumptions I am making
tell me that these transverters are hot.
This is not a laboratory it's just a ham shack. I am very happy
with the performance of these transverters. 73
Mike Sanders
KØAZ
-----Original Message-----
From: Brian Alsop [mailto:als...@nc.rr.com]
Sent: Friday, June 22, 2012 9:45 AM
To: Mike Sanders
Subject: Re: [Elecraft] Happy But Very Sad
Mike,
0.1 uV for what S/N? What is MDS?
-130 dBm doesn't strike me as being that great on 6 and 2M.
73 de Brian/K3KO
On 6/22/2012 14:22, Mike Sanders wrote:
> 6 Meters?
> I have 2 K2s one 10W unit and 1 100W unit.
> Both are pretty well loaded up.
> I just bought a 6 and 2 meter Elecraft transverter
> used. Got them on the bench yesterday and finally
> working after I corrected a problem I made.
> Anyway I have used a lot of radios on 6, 2 and
> beyond for a long time. Also a lot of good IF radios
> with good transverters.
> The XV50 and XV144 are about as good as I have
> seen or used. Yesterday I measured the RX sensitivity
> on an IFR1200 super S at .1 microvolt and well less
> than that for a usable signal on CW. That is about
> -130db. I think I will enjoy using these Elecraft Tvrtrs.
> They both did rated output easily and can drive external
> amplifiers.
> Please do not take my RX measurements as gospel
> but I am pretty sure they are very close to what I found
> with this service monitor. Obviously your mileage may
> vary.
> So my 756PROIII and 746PRO may not see much 6 or
> 2 meter use in the future. With the 100W K2 driving the
> PW1 they may not see much use at all..................73
>
>
>
> Mike Sanders
> KOAZ
>
>
>
>
>
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