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PA2AGA > HDDIG 04.06.00 21:36l 221 Lines 6823 Bytes #-9455 (0) @ EU
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To : HDDIG@EU
Date: Sat, 03 Jun 00 14:51:20 MET
Message-Id: <hd_2000_155A>
From: pa2aga@pe1mvx.ampr.org
To: hd_broadcast@pa2aga.ampr.org
X-BBS-Msg-Type: B
Ham-Digital Digest Sat, 3 Jun 2000 Volume 2000 : Issue 155
Today's Topics:
AEA PK-900 Firmware?
Call for 6meter contest suggestions
Copy of article in QST JAN 94 - SSTV
Help -- 128 KB SRAM Chip (7 msgs)
N0ZO no longer supports Keyboard inputs! (4 msgs)
Regular Landline Modem Conversion into a TNC Device
Scanner Dweeb comic update (Episode 66)
Send Replies or notes for publication to: <Ham-Digital@UCSD.Edu>
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Archives of past issues of the Ham-Digital Digest are available
(by FTP only) from ftp.UCSD.Edu in directory "mailarchives/ham-digital".
We trust that readers are intelligent enough to realize that all text
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policies or positions of any party. Your mileage may vary. So there.
Loop-Detect: Ham-Digital:2000/155
----------------------------------------------------------------------
Date: Fri, 2 Jun 2000 12:35:47 -0400
From: "Marg" <PseNoEmail@No.com>
Subject: AEA PK-900 Firmware?
I already have an external DSP filter. I really don't need the DSP upgrade
(even though it does have some advantages such as adaptive DSP filters for
Pactor).
It is too bad that you don't just offer a firmware upgrade for the old
PK-900's (like you do for the PK-232MBX).
Sometimes I wish that AEA was still around.
73's
Marg
"John Douglas" <jdouglas@timewave.com> wrote in message
news:8h748h$up7$1@newsfeed.minn.net...
> In article <SGDZ4.4778$qS3.12579@tor-nn1.netcom.ca>, "Marg"
<PseNoEmail@No.com> wrote:
> >Does anyone know whether Timewave sells just the latest firmware upgrade
for
> >the PK-900 (without having to buy the DSP upgrade)??
> >
> >Marg
> >
> >
> Hello Marg,
>
> Upgrades for the PK-900 are available in the DSP upgrade only.
>
> 73 John N0ISL
> Timewave Technology
> Watch for the NEW sound of CW.. Coming Soon...
------------------------------
Date: Fri, 02 Jun 2000 23:33:05 GMT
From: Simply Info <simplyinfo@sc.rr.com>
Subject: Call for 6meter contest suggestions
In order to help increase 6meter activity for PSK I wanted to sponsor a
contest. I was thinking about a 24 -48 hour contest.. all on 6meters ..
all PSK. Anyone have suggestions comments etc. Please let me know.
------------------------------
Date: Fri, 2 Jun 2000 23:19:10 -0400
From: "Rob" <Pse@NoEmail.Com>
Subject: Copy of article in QST JAN 94 - SSTV
In the January 1994 issue of QST, there is an article describing an
inexpensive SSTV interface. I have lost this issue of QST.
Does anyone have a copy of this article?? Is it simply another HAMCOMM
style interface??
73's
Rob
amtor <at> hotmail {dot} com
------------------------------
Date: Fri, 02 Jun 2000 14:48:39 GMT
From: rgawtry@timewave.com (Randall Gawtry)
Subject: Help -- 128 KB SRAM Chip
Rob,
I checked in some of our archive Hitachi data books. While I didn't find the
precise part you mentioned, generally Hitachi medium speed SRAM with an LL
suffix is low power standby current (spec'ed at 15 uA vs. 50 uA normal). We
have used this type of SRAM in various projects over the years and have had no
problem with the LL or equivalent version from any manufacturer. (Backup
batteries last longer and resetting the SRAM to all zeros by pulling the
battery may take a lot longer!)
Most ICs are in very short supply at this point, so you will find problems
obtaining many parts at low prices with fast delivery.
73,
Randy Gawtry
Timewave Technology Inc.
In article <5BDZ4.4776$qS3.12347@tor-nn1.netcom.ca>, "Rob" <Pse@NoEmail.Com>
wrote:
>There is no information on this chip on the Hitachi web site. Very strange.
>
>I sent Hitachi an Email. But perhaps someone reading this post may have had
>some actual experience with this type of chip.
>
>73's
>Rob
>
>"D. Stussy" <kd6lvw@bde-arc.ampr.org> wrote in message
>news:Pine.LNX.4.10.10006020011000.138-100000@mbx.bde-arc.ampr.org...
>> On Thu, 1 Jun 2000, Rob wrote:
>> > I would like to upgrade the static RAM (SRAM) chip in my KPC-3.
>> >
>> > I need a SRAM chip (part number S628128-70L).
>> > They are sold out in this area. There are on back order -- probably at
>> > least 4 weeks before they show up. KANTRONICS sells them but they are
>way
>> > TOO expensive. Talk about a mark-up!
>> >
>> > I can buy a 128 KB SRAM low-low power chip (part number S628128-70LL
>such as
>> > Hitachi HY628100A LLP-70). It is even less expensive.
>> >
>> > Does anyone know what the difference is between the S628128-70L chip and
>the
>> > S628128-70LL chip??
>> >
>> > Can I use the S628128-70LL in the KPC-3??
>>
>> Did you try Hitachi's web site? I bet the only difference is power
>consumption
>> (as in current drain).
>>
>
>
------------------------------
Date: Fri, 2 Jun 2000 08:48:55 -0700
From: "aa" <please-reply-2-group-n6vig@hotmail.com>
Subject: Help -- 128 KB SRAM Chip
try http://www.jameco.com/cfm/viewdesc.cfm?part_num=131810
"Rob" <Pse@NoEmail.Com> wrote in message
news:o8BZ4.4740$qS3.12544@tor-nn1.netcom.ca...
> Hi,
>
> I would like to upgrade the static RAM (SRAM) chip in my KPC-3.
>
> I need a SRAM chip (part number S628128-70L).
> They are sold out in this area. There are on back order -- probably at
> least 4 weeks before they show up. KANTRONICS sells them but they are way
> TOO expensive. Talk about a mark-up!
>
> I can buy a 128 KB SRAM low-low power chip (part number S628128-70LL such
as
> Hitachi HY628100A LLP-70). It is even less expensive.
>
> Does anyone know what the difference is between the S628128-70L chip and
the
> S628128-70LL chip??
>
> Can I use the S628128-70LL in the KPC-3??
>
> 73's
> Rob
>
>
------------------------------
Date: Fri, 02 Jun 2000 09:51:20 -0500
From: Rick Haub <rhaub@midwestmicro-tek.com>
Subject: Help -- 128 KB SRAM Chip
The HY628100A is not a Hitachi part but a Hyundai part. Go here for a PDF data
sheet.
http://kcs.hei.co.kr/models/sram/sramcomp/1M/HY628100B.PDF
This part only comes in the SOP and TSOP-1 package (according to Hyundai). I'm
assuming that your's is in a plastic DIP package? If so you can get a similar
part from BG micro for cheep.
Rick KC0GIX
Rob wrote:
> Hi,
>
> I would like to upgrade the static RAM (SRAM) chip in my KPC-3.
>
> I need a SRAM chip (part number S628128-70L).
> They are sold out in this area. There are on back order -- probably at
> least 4 weeks before they show up. KANTRONICS sells them but they are way
To be continued in digest: hd_2000_155B
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