QRZ! Ham Radio 3/QRZ Ham Radio Callsign Database - Volume 3.iso/digests/equip/940089.txt

Internet Message Format | 1994-06-04 | 18KB

Date: Fri,  1 Apr 94 04:30:20 PST
From: Ham-Equip Mailing List and Newsgroup <[e-mail]>
Errors-To: [e-mail]
Reply-To: [e-mail]
Precedence: Bulk
Subject: Ham-Equip Digest V94 #89
To: Ham-Equip


Ham-Equip Digest            Fri,  1 Apr 94       Volume 94 : Issue   89

Today's Topics:
                         decoding morse on PC
                        FT-470 Lighting ....?
                         help with MFJ 941D
                        Hot Water 100 (2 msgs)
                            HTX-202 Sale!
                     Info on new Patriot PC-1610?
                      Is the Atlas 310 for real?
                          MFJ Antenna Tuner
                    Please Help with HF equipment
                          Still want MFJ 986
                Which HF rigs have Transverter Jacks?
                            YAESU FT-101E
                             Yaesu FT411

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 Ham-Equip Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/ham-equip".

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: Thu, 31 Mar 1994 12:50:20 GMT
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!pipex!bbc!ant![e-mail]
Subject: decoding morse on PC
To: [e-mail]

[e-mail] wrote:
: >>Bob Albert <[e-mail]> writes:
:
: >>What you are looking for is a TNC, Terminal Node Controller.  You
:
: >>What I think he's looking for is a software package that runs on a PC
: >>with a sound card to decode CW... it's coming.
:
: >>73, KG7BK, [e-mail]

: A Morse decoder based on the Sound Blaster Board (fftmorse.zip) is available at
: this anonymous ftp site:

: oak.oakland.edu   "/pub/msdos/hamradio/ fftmorse.zip"

: An excellent code practicing program the "SuperMorse" is also available in this
: site:

: "/pub/hamradio/pc/theory-and-morse/ sm410.exe"



: 73, D.J. ([e-mail])

The cheapest way I know of, if you haven't got a sound card is a prog
called hamcomm22.
I does morse and rtty with a single op-amp interface. Dead cheap eh?

I got hamcom from ftp.funet.fi

john b
[e-mail]

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

Date: 31 Mar 94 10:57:44 GMT
From: dog.ee.lbl.gov!agate!library.ucla.edu!news.ucdavis.edu!modem64.ucdavis.edu![e-mail]
Subject: FT-470 Lighting ....?
To: [e-mail]

In article <[e-mail]> [e-mail] (Keith J. Leite) writes:

>Hi,
>I am a new owner of a Yaesu FT-470, I think the radio is great! The only
>gripe I have with the unit is the lighting at night. I was wondering if
>there was a MOD out there that would set the internal light to stay on
>until not needed. I find it quite difficult to be driving along the highway
>and trying to change freq's in the dark ....any help would be appreciated,
>again I think the radio is great.
Well a couple dots of solder and a little wire will fix that right up.  If
your lazy just run the wires out the plug in the side and twist them together
when you want light.  If your ambitious, mount a micro switch in the rubber
plug.  That's the only way as far as I know.

cheers,
Dan

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

Date: Thu, 31 Mar 94 02:18:23 GMT
From: netcomsv!netcomsv!skyld![e-mail]
Subject: help with MFJ 941D
To: [e-mail]

In article <[e-mail]> [e-mail] writes:

  > In article <[e-mail]> [e-mail] (Jeffrey  >  D. Angus) writes:
  > >
  > >  > In article <[e-mail]>, [e-mail]  >  (Rob  >  Lingelbach) writes:
  > >  > >I've lost the information sheets on my MFJ 941D "Versa Tuner II".  I
  > >  > >want to connect a longwire antenna, and I see that there is a line
  > >
  > >  Doesn't anyone *open* their equipment and look inside anymore?
  > >
  > >  It's not like *this* part is made with multi-layered PC boards and
  > >  surface mounted 100 pin componenets.
  >
  > Some of us aren't as *gifted* as you with respect to knowledge of R/C
  > circuits, antenna theory, and unlimited tinkering time.  ;-)

  Open the lid Rob. It takes four screws. There are a TOTAL of 3 parts inside.
  4 if you include the switch. How much more simple does it need to be before
  you can figure it out?


 Amateur: WA6FWI@WA6FWI.#SOCA.CA.USA.NOAM | "You have a flair for adding
Internet: [e-mail]        |  a fanciful dimension to any
 US Mail: PO Box 4425 Carson, CA 90749    |  story."
   Phone: [phone]                |           Peking Noodle Co.

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

Date: 30 Mar 94 20:01:01 -0600
From: ihnp4.ucsd.edu!sdd.hp.com!saimiri.primate.wisc.edu!news.doit.wisc.edu!uwec.edu![e-mail]
Subject: Hot Water 100
To: [e-mail]

Hi all.  My first post in this group.


I wanted to get a working radio going so fast that I didn't shop around.

I bought an old heath kit HW100 for $150.00  I guess it doesn't matter
much now, but is this average going price or did I get ripped off.


Danny,
N9VOX
.......................................................................
General Exam in two weeks,  wish me luck (or at least time to study)

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

Date: Thu, 31 Mar 1994 13:54:12 GMT
From: ihnp4.ucsd.edu!agate!library.ucla.edu!csulb.edu!csus.edu!netcom.com![e-mail]
Subject: Hot Water 100
To: [e-mail]

In article <[e-mail]> [e-mail] writes:
>I wanted to get a working radio going so fast that I didn't shop around.

Well, sometimes shopping around just leads you to regret what you
should have bought, and didn't...

>I bought an old heath kit HW100 for $150.00  I guess it doesn't matter
>much now, but is this average going price or did I get ripped off.

Not bad. Not a ridiculous bargain, but not bad either if it's a solid
rig (only time will tell, since Heath rigs have been known to have
intermittents related to their kit origins). Add an audio filter for
CW, and a dummy load to tune up into.


>Danny,
>N9VOX
>.......................................................................
>General Exam in two weeks,  wish me luck (or at least time to study)
>

With a call like 'VOX' you really need that General...

73
Greg

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

Date: 30 Mar 94 21:48:43 EST
From: ihnp4.ucsd.edu!swrinde!gatech!newsxfer.itd.umich.edu!gumby!wmichgw![e-mail]
Subject: HTX-202 Sale!
To: [e-mail]

      I just stopped by at my local Radio Shack and saw two marvelous deals
on HT's.  The 2-meter HTX-202 is on sale for US$ 188 and the 440-MHz HTX-404
is on sale for US$ 228.  These prices are quite a bit cheaper than the normal
price for such units.  I've been watching these prices for about the last six
months and haven't seen them on sale.
     I am studying up for my technician no-code exam, do any of you know if
there is a waiting period from the time I take the exam until the time that
I can begin transmitting?  Also, can someone out there tell me where I can
find out the dates and locations of the exams?  Any and all help would be
greatly appreciated.

                        Anil K. Verma

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

Date: 31 Mar 94 02:27:40 GMT
From: dog.ee.lbl.gov!newshub.nosc.mil!news![e-mail]
Subject: Info on new Patriot PC-1610?
To: [e-mail]

I saw the ad and was interested because of the keyboard interface.

I'd be interested in seeing more information about it from anyone who
has seen it or used one.

Roger Keating - KD6EFQ
[e-mail]

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

Date: 31 Mar 1994 15:49:34 GMT
From: ihnp4.ucsd.edu!galaxy.ucr.edu!library.ucla.edu!csulb.edu!nic-nac.CSU.net!usc!cs.utexas.edu!geraldo.cc.utexas.edu!tivoli.tivoli.com!wichita![e-mail]
Subject: Is the Atlas 310 for real?
To: [e-mail]

I don't now about the Atlas 310, but someone (I can't remember his name offhand) pulled a
scam using the name Atlas back in 1987-88, and was, I believe, eventually convicted of
mail fraud for taking money and not delivering the product. Same person also had an earlier
conviction for the same type of offense. Without some more to go on, I'd be very leery of
this one, particularly since it appears no one has received anything this time around
either.

Jeff Kilgore, KC1MK ([e-mail])

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

Date: Thu, 31 Mar 1994 13:56:55 GMT
From: ihnp4.ucsd.edu!galaxy.ucr.edu!library.ucla.edu!csulb.edu!csus.edu!netcom.com![e-mail]
Subject: MFJ Antenna Tuner
To: [e-mail]

In article <[e-mail]> [e-mail] (Gary Rotter) writes:
>Organization: NCR/Teradata
>Reply-To: [e-mail]
>
>I have a MFJ 986 and I am really happy with the way that
>it works.  I find the two knob tuning system to be a lot
>easier for me to use than the three knob tuning on the
>989C.

But can it match the wide range of impedences (e.g. the
proverbial 'wet noodle') that the 3-knob tuner can?

Greg

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

Date: 31 Mar 1994 14:03:43 GMT
From: athos.cc.bellcore.com!moscow![e-mail]
Subject: Please Help with HF equipment
To: [e-mail]

Hi,
  I got my license 3 1/2 years ago, primarily to use 2 meters mobile.
I have done no HF, but would like to give it a try.  Problem is I'm
not sure what equipment/antenna to buy.  A few months ago I was ready
to buy a Yaesu FT-990 and dipole antenna, but upon calling AES and HRO
I was told that the dipoles I was looking at would not work with the
antenna tuner in the FT-990 or other radios in that class.

  I live in a house on a 100 by 100 foot lot in a residential area.  There
are a few 50 foot trees on my property.  I would like an antenna which
would allow operation on multiple bands (I'm not sure which ones I want
to use), but also one that won't annoy the neighbors too much.  I would
like to limit the cost of the equipment/antenna to around $2000.

  Any suggestions would be appreciated.

73s

jim, KD3TR
[e-mail]

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

Date: 31 Mar 1994 16:16:16 GMT
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!wupost!crcnis1.unl.edu!unlinfo.unl.edu![e-mail]
Subject: Still want MFJ 986
To: [e-mail]

I'm still looking for a used Differential-T tuner. If you know of one,
please email me.

Thanks - Gary
[e-mail]

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

Date: 1 Apr 94 02:11:16 GMT
From: dog.ee.lbl.gov!agate!usenet.ins.cwru.edu!cleveland.Freenet.Edu![e-mail]
Subject: Which HF rigs have Transverter Jacks?
To: [e-mail]

In a previous article, [e-mail] (Galen Watts) says:

>Subject line says most of it.  I know the Kenwood TS-820 has 'em and I've
>heard the TS-430 has 'em, but I'm not sure.  I'm mostly interested in
>synthesized rigs, but any info is greatly appreciated!!!
>Galen, KF0YJ
>
Yes Virginia,

There is a Transverter Jack on the TS-430.  It is an 8-pin DIN connector
used to interface a VHF or UHF transverter.  (I am quoting the manual.  I
never used it....)

73,
Joe N8IPC

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

Date: 1 Apr 94 05:21:19 GMT
From: dog.ee.lbl.gov!agate!howland.reston.ans.net!noc.near.net!news.delphi.com![e-mail]
Subject: YAESU FT-101E
To: [e-mail]

Hi Dorr,
I've had a FT-101E for about 15 years and it's a great transceiver.  I'm not
sure whether or not it still exists, but for a while there was a "Fox Tango
Club" on 20 meters (I think it was at 14,325 MHz) on Saturday mornings.
That was a while ago, so it may no longer exist.  Anyway the club leader sent
out a newsletter crammed with modifications for the 101, and he sold the kits.
For example, mine has a double balanced mixer in the front end (it really
improves the reception),
 a couple of crystal filters for CW, and a lot of other mods I can't remember
right now.  (I haven't been on the air lately, but am putting up a new antenna
now and plan to get started again.)
I hope this helps a bit.
Larry
K2QCC


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

Date: 31 Mar 94 05:06:59 GMT
From: dog.ee.lbl.gov!agate!msuinfo!netnews.upenn.edu!news.amherst.edu![e-mail]
Subject: Yaesu FT411
To: [e-mail]

I'm considering buying a two-year-old used Yaesu FT411 HT. The guy who's sell-
ing it is including two battery packs and a mic, and asking $150.

I'm new to ham radio and I don't know much about this particular rig except
that, on paper, it seems to have all the features I want. Can anyone tell me
anything about it? How durable? Reliable? Are there any problems with it?
Anything that might make it bad as a used rig? And do you think that sounds
like a good price? I know it goes for $350 or so new in the stores.

My e-mail address is [e-mail]
or
[e-mail]

Thanks and 73. Maybe I'll meet you on the air, sometime.

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

Date: Thu, 31 Mar 1994 00:43:45 GMT
From: ihnp4.ucsd.edu!swrinde!gatech!wa4mei!ke4zv![e-mail]
To: [e-mail]

References <[e-mail]>, <[e-mail]>, <[e-mail]>
Reply-To : [e-mail] (Gary Coffman)
Subject : Re: RF and AF speech processors. Was: FT-990 vs TS-850

In article <[e-mail]> [e-mail] (Zack Lau (KH6CP)) writes:
>Gary Coffman ([e-mail]) wrote:
>
>: Apples and oranges. The phasing SSB exciter is using an audio
>: *phase shift network*, the filter exciter is using a RF filter.
>: Now the AF phasing network may be considered a sort of filter,
>: but that's not it's designed purpose, and for sure it's not a
>: 3 kHz bandpass response. Instead it has to maintain a constant
>: 90 degree phase shift across multiple octaves. That's tougher.
>
>Actually, what I was writing about was Gary's misconception that
>phase distortion is somehow much easier to deal with if you
>move the center frequency higher.  Its actually tougher--just try
>and build a crystal frequency with good phase characteristics
>and a good shape factor. (Or, try and buy one...)  Of course, it
>is true that you need an audio filter for a phasing exciter, as
>there are limits to how broad you can make the phase shift network.
>Fortunately, there is no requirement to transmit 60 Hz hum with
>perfect fidelity.
>
>I would agree that it isn't necessary for a phasing rig to have low
>phase and amplitude distortion--I'm sure that someone could work
>*really* hard and come up with one that sounded awful and still
>managed to reject the opposite sideband.
>  The dark side of DSP? :-)
>But, in practice, the easiest way to make one to work well is
>to just go ahead and design for low distortion.

Well if you look at the table Tom posted, you'll see that even a
matrix network audio phase shifter (published in the ARRL Handbook)
has lousy phase response at the edges too, and a simple first order
network is worse. The Dome networks and B&W networks used in older
designs were even worse. Now compare that to the phase response of
a Collins mechanical filter. Except at the *edges* it's phase response
is flatter. And as you noted, we can cut off the edges with a pre-filter
in either case. Bill Orr notes in his Radio Handbook that while 60 db
opposite sideband rejection is easy with a filter, it's difficult to do
as well as 40 db with a phasing network because of balance problems,
especially near the edges, which shows up as *distortion product aliases
in the passband*.

>FWIW, one of the fanatical AM types showed off his phasing
>receiver at Deerfield NH a few years ago...  Guess he didn't
>notice the distortion Gary is worried about.  Come to think
>of it, I don't recall hearing complaints about the Sony
>2010's audio quality, which also uses audio phase shift
>networks. (go through the archives of the shortwave newsgroup?)

Better still consult the Hi Fi magazines. The Sony 2010, and
a few other AM receivers, have been *panned* for their poor
implementation of synchronous detection. Differential phase
distortion is a hot topic with the high end folks now, probably
because they've licked almost all the other problems. In
rec.radio.shortwave the 2010 was panned because it's synchronous
detector isn't really synchronous. It's actually a form of ISB
instead of correlating upper and lower sidebands as a true sync
detector does.

Gary
--
Gary Coffman KE4ZV          |    You make it,     | gatech!wa4mei!ke4zv!gary
Destructive Testing Systems |    we break it.     | uunet!rsiatl!ke4zv!gary
534 Shannon Way             |    Guaranteed!      | emory!kd4nc!ke4zv!gary
Lawrenceville, GA 30244     |                     |

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

End of Ham-Equip Digest V94 #89
******************************
******************************