On D-Day, the first paratroopers to hit the ground in France had little
clickers they used to identify each other.
So Barry, are you saying we may have a World War II radio here? ;-)
73 - Rick, DJ0IP
(Nr. Frankfurt, Germany)
-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Barry N1EU
Sent: Friday, April 08, 2016 11:43 AM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] OT: Rob Sherwoods Measurents of the IC-7300
Thanks Rick, thanks Rob!
Looks like we might have a clicker here.
73, Barry N1EU
On Fri, Apr 8, 2016 at 5:10 AM, rick@dj0ip.de <Rick@dj0ip.de> wrote:
> This is HOT off the press.
>
> Rob has been busy measuring the IC-7300 and IC-7851.
>
> He has both radios on the bench right now.
>
>
>
> Last night Rob sent me the measured results.
>
> That's all we have so far.
>
>
>
> Normally Rob will use the radio for a couple of weeks and even run a
> contest with it.
>
> Then he will write a page expressing his personal opinion on operating
> with the radios.
>
> He has not done that yet for either of these two new radios.
>
>
>
> I will update the pages when Rob has updated his reports.
>
>
>
> For now this is only Measured Data.
>
>
>
> Good News:
>
> Both Rob and Adam have measured TX noise and given me files and pictures.
>
> I don't yet have Adam's written permission to post his pictures but
> expect that soon.
>
> I have posted Rob's files and will post Adam's as soon as I have
> written permission.
>
>
>
>
>
> On the 7300, the data looks kind of OK, about like the 7410 or 7600,
> but there is a catch.
>
> With the older radios, turning on the IP+ improves the BDR3 significantly.
>
> With the 7300 it "looks like" it does but there is still a problem
> with overload.
>
>
>
> Specifically, Rob writes:
>
>
>
> Blocking measurement was limited by the ADC overload indicator "OVF"
>
> Overload with a single signal occurs at -10 dBm
>
> While dynamic range is increased significantly with IP+ enabled, the
> overload
>
> point remains -10 dBm.
>
>
>
> According to Rob this is a "dither and random" problem. It uses the
> same ADC chip ANAN uses and it took ANAN one year to fix that same
> problem after Rob explained the issue to them. It is a software issue,
> so no hardware changes should be necessary.
>
>
>
> I don't know yet where Rob will place the 7300 on his chart.
>
> If we just look at BDR3, it is in the range of the Ten-Tec OMNI VII.
>
> But that of course is overshadowed by its d&r problem.
>
>
>
>
>
> NOW THE BEEF:
>
>
>
> All of my information from Rob (i.e., presentations, tests, pictures,
> etc.) is posted on my web in a section called "Sherwood Forest".
>
> http://www.dj0ip.de/sherwood-forest/
>
>
>
> And for you guys who can't wait, here is the direct link to the 7300:
>
> http://www.dj0ip.de/sherwood-forest/sherwood-xcvr-tests/icom-ic-7300/
>
>
>
> -
>
> -
>
> -
>
> BTW, please do not order any more Barbed Wire antennas from us.
>
> We are completely sold out through March of 2017. ;-)
>
>
>
> 73
>
> Rick, DJ0IP
>
>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
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