HAM Radio 3/hamradioversion3.0examsandprograms1992.iso/news/ih91260a/ih91262.txt

Internet Message Format | 1991-04-03 | 10KB

From wang!elf.wang.com!ucsd.edu!info-hams-relay Wed Apr  3 15:51:45 1991 remote from tosspot
Received: by tosspot (1.64/waf)
    via UUCP; Wed, 03 Apr 91 22:12:59 EST
    for lee
Received: from somewhere by elf.wang.com id aa22377; Wed, 3 Apr 91 15:51:44 GMT
Received: from ucsd.edu by relay1.UU.NET with SMTP
    (5.61/UUNET-shadow-mx) id AA08087; Wed, 3 Apr 91 10:03:44 -0500
Received: by ucsd.edu; id AA01899
    sendmail 5.64/UCSD-2.1-sun
    Wed, 3 Apr 91 04:30:31 -0800 for brian
Received: by ucsd.edu; id AA01895
    sendmail 5.64/UCSD-2.1-sun
    Wed, 3 Apr 91 04:30:28 -0800 for /usr/lib/sendmail -oc -odb -oQ/var/spool/lqueue -oi -finfo-hams-relay info-hams-list
Message-Id: <[e-mail]>
Date: Wed,  3 Apr 91 04:30:26 PST
From: Info-Hams Mailing List and Newsgroup <[e-mail]>
Reply-To: [e-mail]
Subject: Info-Hams Digest V91 #262
To: [e-mail]


Info-Hams Digest            Wed,  3 Apr 91       Volume 91 : Issue 262

Today's Topics:
                         frequency standards
                     large 110->220 transformers
                        Licensing Philosophy?
                          Nintendo for sale
                      No-Code Testing Questions
                                 RG8U
                         US callsign database

Send Replies or notes for publication to: <[e-mail]>
Send subscription requests to: <[e-mail]>
Problems you can't solve otherwise to [e-mail].

Archives of past issues of the Info-Hams Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/info-hams".

We trust that readers are intelligent enough to realize that all text
herein consists of personal comments and does not represent the official
policies or positions of any party.  Your mileage may vary.  So there.
----------------------------------------------------------------------

Date: 2 Apr 91 15:53:51 GMT
From: ogicse!emory!wa4mei!ke4zv![e-mail]
Subject: frequency standards
To: [e-mail]

In article <[e-mail]> [e-mail] (Prof. Ronald Long) writes:
>I recall reading once that the tv networks use rubidium clocks to
>set the color burst frequency and that you could pick off a signal
>from your home tv which would essentially give you access to a
>frequency standard of laboratory accuracy. There was a caveat that
>you had to be careful to get a live broadcast.

I commented on this in another post. The use of frame syncronizers at
TV stations and the use of live satellite broadcasts by the networks
have made this technique obsolete. The signal you receive from your
local station, even during a network program, has passed through one
or more frame syncronizers before being aired. This changes whatever
accuracy the original signal may have had to the accuracy of the local
station's sync generator. Usually these are simple crystal controlled
generators with no more accuracy than your home counter.


>Can anyone give me a reference to this? I checked indexes in QST and
>HR but did not find anything. Ramsey Electronics used to sell a "Color
>Burst Adapter" for their counters for $14.95 but they no longer
>sell it and I can not seem to get through their order-taker layer
>to find if they have a schematic of the former product.

Check 73 Magazine, there was a construction article on this subject
within the last few months. Please be aware however, as the author
of that article was not, that this technique is now worthless due
to changes in the operating procedures and equipment of the networks
and the local stations.

>Has anyone tried this in the past? What results did you have?

Ten years ago it worked great.

Gary KE4ZV

------------------------------

Date: 2 Apr 91 10:03:59 GMT
From: dev8.mdcbbs.com![e-mail]
Subject: large 110->220 transformers
To: [e-mail]

In article <[e-mail]>, [e-mail] (Mark Zenier) writes:
> In article <[e-mail]> [e-mail] (Donn Hoffman) writes:
>>I am moving to Spain and want to bring several appliances (eg:
>>macintosh, fax, blender, stereo).
>>
>>Power in Spain is 220v/50hz.  The appliances are all 110v.  Some are
>>labeled 60hz, some are labeled 50/60hz.
>>
>>1. I am reluctant to trust my fax and mac to the cheap travel
>>transformers sold at Akbar & Jeff's Luggage Hut.  Is there some sort
>>of larger, reliable transformer I can get to plug all (or several) of
>>my appliances into?
>
> Over there, try an appliance store near a US Military base.  According
> to ex-miltary friends, 220->110 volt autotransformers are quite common.
> If there are some sort of classified adds or for sale bulliten board,
> check them.  Departing personel don't want to ship a useless converter
> back home.
>
> Mark Zenier  [e-mail]  [e-mail]

You might take a quick peek at your electronics to see if they have switchable
power supplies ( from 110 to 220). Many newer systems have that built in.

------------------------------

Date: 3 Apr 91 02:03:49 GMT
From: swrinde!zaphod.mps.ohio-state.edu!sdd.hp.com!hp-col!col![e-mail]
Subject: Licensing Philosophy?
To: [e-mail]

Licensing? Time to move to rec.radio.amateur.policy

------------------------------

Date: 3 Apr 91 06:30:09 GMT
From: ogicse!milton![e-mail]
Subject: Nintendo for sale
To: [e-mail]

Nintendo base unit with 2 controllers, NES Advantage joystick, light gun

games: Super Mario Bros/Duck Hunt, Punch Out and Ghosts & Goblins

$135 obo

[e-mail]

------------------------------

Date: 3 Apr 91 01:38:47 GMT
From: swrinde!mips!apple!well![e-mail]
Subject: No-Code Testing Questions
To: [e-mail]

[e-mail] ( EVENSONG) writes:


>    Alright, now that the no-code is here, I have a lot of people asking
>me to get them tested.  I have gotten all my VE goodies from the ARRL more than
>a year ago, and I am at a loss to the how-to's of the no-code.  Is the no
>code tech restricted to VE's, or can Generals and above (two in number) give
>the test (seeing that it is a new 'entry level' license)??

     There's a good article in the March 1991 CQ that covers this.
All VECs should have received a letter dated Dec. 14, 1990 covering
the subject.  In general, the No-Code Technician licence is tested
just like the (Code) Technician, but without element 1(A), 5 WPM Morse.
So No-Code Technician takes elements 2 and 3(A), given as usual.

     The FCC is soliciting informal comments on names for the new license.
"Tech Lite" has been suggested.

                    John Nagle

------------------------------

Date: 3 Apr 91 04:01:21 GMT
From: swrinde!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!hpb.cis.pitt.edu![e-mail]
Subject: RG8U
To: [e-mail]

In article <[e-mail]> [e-mail] writes:
>Did anyone manage to work Belden, RG8U, during his DXpedition to the Coaxial
>Islands on April 1?
>
>
   I heard that he wasn't on the air much because of the excellent surfing
conditions.  The Coaxial Islands are known for their high Standing Wave Ratio.

73,
Harry Bloomberg WA3TBL
[e-mail] or
[e-mail]

------------------------------

Date: 3 Apr 91 06:33:49 GMT
From: [e-mail]
Subject: US callsign database
To: [e-mail]

From:    HUTIN@PSI%EPSX25@MRGATE@PRSRTR
To:    "[e-mail]"@M_INTERNET@MRGATE@PRSRTR


I plan to start a callsign server on packet in France and i am
looking to a copy of the US callsign database. What is the best way
to get one copy ?.

73s Remi FE6CNB
fe6cnb @ fe6cnb.frpa.fra.eu ax25
[e-mail] internet
[e-mail]  compuserve
[e-mail] tcpip

------------------------------

Date: 2 Apr 91 23:03:35 GMT
From: swrinde!elroy.jpl.nasa.gov!turnkey!orchard.la.locus.com!fafnir.la.locus.com![e-mail]
To: [e-mail]

References <[e-mail]>, <[e-mail]>, <[e-mail]>
Subject : Re: Newer HF rigs

In article <[e-mail]> [e-mail] (Bob Parnass, AJ9S) writes:
>About the Drake TR-7, in article <[e-mail]>,
>[e-mail] (Gary Coffman) writes:
>
>> Ah but it's that analog VFO that *makes* it such a great receiver...
>
>The low phase noise level in the Drake gear was an advantage, but
>one drawback to the internal Drake PTO was that it drifted.
>My TR7, TR7A, and two R-7s all required a few hours warmup
>before settling down for CW use.
>
>I plotted the drift over 4 hours and it was still over a hundred
>Hertz after one hour.

   Hey, now that DDS is such a popular buzzword and reasonable systems
are practical, building a direct digitial synthesizer for this (and other)
radios ain't such a bad idea. I'd guess one could build a remote, <1Hz step
VFO with the stability and phase noise characteristics of a crystal without
special magic. Plessey makes a chip (dunno how much costs) that would this
task pretty easy.... 'course it requires the use of a CPU, too.

--
 * Dana H. Myers KK6JQ         | Views expressed here are    *
 * [phone]         | mine and do not necessarily    *
 * [e-mail]        | reflect those of my employer    *

------------------------------

End of Info-Hams Digest
******************************