mla2500 help!
Dale Cheek
ny5b at sol.wf.net
Fri Feb 23 17:44:45 EST 1996
From: "MIKE,VE9AA & COREEN,WYNDER-PHOTO" <wynder at brunswickmicro.nb.ca>
Reply-to: "MIKE,VE9AA & COREEN,WYNDER-PHOTO" <wynder at brunswickmicro.nb.ca>
To: cq-contest at tgv.com
Date: Tue, 23 Jan 1996 05:02:14 -0400
Subject: mla2500 help!
Priority: normal
Hi contest gang!
Anyone know the values of the two resistors
used in the parasitic chokes on top of the two
8875's in the 2500b? Cooked mine. . .
Contest tonight!
Mike
wynder at brunswickmicro.nb.ca
It looks like they are 10 (ten) ohms. brn-blk-brn-gold-yellow
and looks like about 2 watts. good luck!
>From R.B. Vallio" <wsixrgg at crl.com Fri Feb 23 23:46:12 1996
From: R.B. Vallio" <wsixrgg at crl.com (R.B. Vallio)
Date: Fri, 23 Feb 1996 15:46:12 -0800 (PST)
Subject: VCR RFI
Message-ID: <Pine.SUN.3.91.960223154359.1425B-100000 at crl13.crl.com>
On Fri, 23 Feb 1996, Matthew S. Trott wrote:
Stuff deleted...
>
> Here's what I did and it cured the problem completely:
>
> Gift wrap your VCR in aluminum foil. Completley wrap it around both ways
> several times so it will hold. Then use your fingernail or what-have-you and
> cut-out the tin foil on the front controls and tape hole. Voila! It works
> perfectly.
>
> NO more interference!!!
>
> You can even put a ribbon on top.
>
Just keep a fire extinguisher nearby!
73,
Bob Vallio - W6RGG wsixrgg at crl.com
>From David L. Thompson" <thompson at mindspring.com Sat Feb 24 00:12:59 1996
From: David L. Thompson" <thompson at mindspring.com (David L. Thompson)
Date: Fri, 23 Feb 1996 19:12:59 -0500
Subject: Problem with MFJ-432 Voice Keyer
Message-ID: <199602240005.TAA25214 at borg.mindspring.com>
I just hooked up an MFJ 432 Voice keyer to my Yaesu and all the memories key
the transmitter ok, but cannot transmit straight thru on the mic (Heil boom
mic with HC4).
The manual talks about PTT, but my mic only has the two wires hooked up for
full VOX. Is this my problem..the QST review also talks about PTT, but I
quit PTT when I left AM in 1963. I did set the XMIT push switch to on which
I assume activates the PTT line from the Voice Keyer to the transmitter.
Doesn't seem to make any difference.
If this is my problem is there a way around it???
73, Dave K4JRB
>From David O. Hachadorian" <74752.115 at compuserve.com Sat Feb 24 00:51:52 1996
From: David O. Hachadorian" <74752.115 at compuserve.com (David O. Hachadorian)
Date: 23 Feb 96 19:51:52 EST
Subject: vcr interference
Message-ID: <960224005151_74752.115_EHL88-1 at CompuServe.COM>
Here are a couple of easy things to try regarding vcr
interference.
1. If they are trying to watch a tape, disconnect the cable tv
lead from the vcr input. A lot of rf comes down the outside of
that shield.
2. Try switching the vcr output to channel 4 instead of
channel 3, or vice versa. There's usually a switch on the back
of the vcr.
These are a couple of the things my xyl is trained to tell the
neighbors on the phone. Sometimes it cures the problem. At the
least, it establishes a constructive dialog (usually.)
Dave, K6LL
74752.115 at compuserve.com
>From plandm at ix.netcom.com (Phillip Landmeier) Sat Feb 24 01:00:15 1996
From: plandm at ix.netcom.com (Phillip Landmeier) (Phillip Landmeier)
Date: Fri, 23 Feb 1996 17:00:15 -0800
Subject: Change QTH in CT9
Message-ID: <199602240100.RAA24790 at ix7.ix.netcom.com>
Hello boys and girls,
How do you force the QTH of a contact in CT9? The 9A operating from
Haiti last weekend is logged as Croatia. How to I force it to Haiti? I
could stick HH2/ on the callsign, but that is not the callsign I
received. WhaddoIdo?
73 de Phil, AB7BS
>From jboyd at ctobbs.com (Jerry Boyd) Fri Feb 23 01:16:22 1996
From: jboyd at ctobbs.com (Jerry Boyd) (Jerry Boyd)
Date: Fri, 23 Feb 1996 01:16:22 GMT
Subject: Antenna Upgrade Advice
Message-ID: <9602231715275377 at ctobbs.com>
Bob,
Having used many trapped tri-band yagis in the past, and having used a
Force 12 C-3 for the past fifteen months I can tell you the C-3 is FAR
better--particularly in terms of being a very "quiet" (noise wise)
antenna.
>From jreid at aloha.net (Jim Reid) Sat Feb 24 02:06:47 1996
From: jreid at aloha.net (Jim Reid) (Jim Reid)
Date: Fri, 23 Feb 1996 16:06:47 -1000
Subject: Why the X Match
Message-ID: <199602240206.QAA18868 at hookomo.aloha.net>
Hi Terry,
The X Match price is $1045, but I had to add $41 for Fed Ex
shiping to Kauai. I charged it to my Visa once I had the confirmation
from HRO that my account had been credited for the cancelled
order for the Nye tuner.
Well I guess I should have thought to save the e-mail replies.
But a brief summary is:
All of the commercial tuners available are fine for 20, 30,
and 40; they most begin to show limitations at 10, some at 15, and
at 160 meters. The problems are that all( except Ten Tec and
the X Match) use a Pi network, that is the capacitors are in series
with the signal, and the roller or tapped inductor, between the
two caps, runs to rf ground. The result is quite high Q which
means high reactances, which leads to high voltages across
the caps and coil turns at QRO, escpecially on 10 and 160
meters. The inductors used in all, including the Nye are too
small--turns too close, diamter too small. Some use pretty
rinky-dink mechanical linkages between knobs and cap and
inductor shafts, or even "home-made" ones as in the Nye,
Many have had trouble with just the mechanical assembly of
MFJ and even the Nye units, beside the rf voltage build up
problems at higher powers. The L-network of the Ten Tec
and X Match are by nature low reactance and therefor low Q.
Not only does this keep the standing voltages down across
the components if you are operating well away from anetnna
resonance, but it also allows lots more bandwidth of QSY
operation without having to constantly be twidling the tuner
knobs when running QRO.
I actually melted one end of the older style MFJ roller inductor of
a few year old 3 kW tuner of theirs one evening while working on
160 meters: too high reactance to get low vswr to the trasnmitter,
resuting in very high vswr on the transmission line, and a lot of
power heating the wire of the MFJ supposed 3 kW inductor. MFJ
now uses an air core inductor, but the wire of the inductor looks a
gauge smaller to me!
Dave Thompson, K4JRB, told me the cost of just the roller inductor
and the turns counter used in the X Match was about the same as
MFJ's price for their 3 kW tuner! It is a much larger, and heavier
inductor than that used in any of the others, and Paul Schrader, N4XM
who designed and builds the X Match did this unit emphasizing
its design use on 10, 80 and 160 meters. Of course Dave and Paul
are both very active in 160 contesting, so I am confident they know
whereof they speak, and believe that Paul's design will prove to be
very satisfying to me, though, of course, I have not even seen one
of the units as yet. But one day next week.........we'll have a look
inside, and shortly thereafter I'll have my 87A giving it a good shot
of Watts across all nine HF bands, and I will post the results and my opinions!
73, Jim,AH6NB
73 and Aloha,
Jim Reid, AH6NB (Happily retired on the Island of Kauai)
Hawaii, USA Email: jreid at aloha.net
>From Joe_Wilkowski at mc.xerox.com (Wilkowski,Joe) Sat Feb 24 02:12:56 1996
From: Joe_Wilkowski at mc.xerox.com (Wilkowski,Joe) (Wilkowski,Joe)
Date: Fri, 23 Feb 1996 18:12:56 PST
Subject: Change QTH in CT9
Message-ID: <"<E6592E3181B7677C>E6592E3181B7677C at X-MC-0819-MS2.XEROX"@-SMF->
Phil, CT 9 uses a file called CTY.DAT (not *.cty files) . Using an
ASCII editor such as the DOS editor, go in and add the call of the 9A
station under the Haiti heading. Don't worry, after you read a couple
of lines you will see how other unique calls have been added to
various prefixes. After editing it, save the file and reboot C. Now
your 9A will now count as Haiti...
73's
/joe
----------
From: owner-cq-contest at tgv.com
To: cq-contest at tgv.com
Cc: Phillip Landmeier
Subject: Change QTH in CT9
Date: Friday, February 23, 1996 5:00PM
Hello boys and girls,
How do you force the QTH of a contact in CT9? The 9A operating from
Haiti last weekend is logged as Croatia. How to I force it to Haiti? I
could stick HH2/ on the callsign, but that is not the callsign I
received. WhaddoIdo?
73 de Phil, AB7BS
>From Matthew S. Trott" <0007288678 at mcimail.com Sat Feb 24 05:55:00 1996
From: Matthew S. Trott" <0007288678 at mcimail.com (Matthew S. Trott)
Date: Sat, 24 Feb 96 00:55 EST
Subject: VCR RFI
Message-ID: <70960224055507/0007288678PJ4EM at MCIMAIL.COM>
>> Here's what I did and it cured the problem completely:
>> Gift wrap your VCR in aluminum foil. Completley wrap it around both ways
>> several times so it will hold. Then use your fingernail or what-have-you and
>> cut-out the tin foil on the front controls and tape hole. Voila! It works
>> perfectly.
>> NO more interference!!!
>> You can even put a ribbon on top.
>Just keep a fire extinguisher nearby!
>73,
>Bob Vallio - W6RGG wsixrgg at crl.com
Thanks for the tip Bob. Rec'd a couple messages regarding the possibility of
excess heat. I KNEW those vent holes were for something! Although our VCR is
not tube-type I'm sure heat could become a problem, although I haven't
heard,seen,smelled anything as
yet. I'll make sure it is adequatley ventilated.
73, Matt
>From Wes Attaway <wes at prysm.net> Sat Feb 24 06:16:08 1996
From: Wes Attaway <wes at prysm.net> (Wes Attaway)
Date: Sat, 24 Feb 1996 00:16:08 -0600
Subject: DXer/Contester Found Murdered
Message-ID: <01BB024D.6821BF00 at shr16-1.prysm.net>
Shreveport/Bossier City (LA) amateurs are in a state of shock today
after learning that Honor Roll Dxer and contestor Floyd Teetson,
W5MUG, and his wife Winnie, WN5YTR, were found brutally murdered last
night. They lived near the small town of Heflin, LA, which is
about 20 miles east of Shreveport. They had apparently been beaten
to death with 2x4s, and then dumped into a small shed outside their
house, where their throats were then slashed. As of this writing,
few other details are known. Floyd and Winnie will be missed by all who
knew them. Floyd had been a member of several multi-op contest teams
operating from various Caribbean DX sites . They were planning to be
active as ZF2FT from Little Cayman in the upcoming ARRL DX SSB contest
with three other Shreveport-area operators. The DXpedition (with W5AU,
N5OCD, and N5XIQ) will go forward and, if permitted, they will use Floyd's
call, ZF2FT, in memorium. God Bless them both.
--------- Wes Attaway (N5WA) ---------
2048 Pepper Ridge, Shreveport, LA 71115
Tel: 318-7973012 --- Fax: 318-7974972
e-mail: wes at prysm.net
>From Wes Attaway (N5WA)" <wes at prysm.net Mon Feb 26 04:33:34 1996
From: Wes Attaway (N5WA)" <wes at prysm.net (Wes Attaway (N5WA))
Date: Fri, 23 Feb 1996 16:33:34 -6000
Subject: Honor Roll Dxer/Contestor found brutally murdered
Message-ID: <9602232233.AA28264 at pti.prysm.net>
Shreveport/Bossier City (LA) amateurs are in a state of shock today
after learning that Honor Roll Dxer and contestor Floyd Teetson,
W5MUG, and his wife Winnie, WN5YTR, were found brutally murdered last
night. They lived near the small town of Heflin, LA, which is
about 20 miles east of Shreveport. They had apperently been beaten
to death with 2x4s, and then dumped into a small shed outside their
house, where their throats were then slashed. As of this writing,
few other details are known. Floyd and Winnie will be missed by all who
know them. Floyd had been a member of several multi-op contest teams
operating from various Caribbean DX sites . They were planning to be
active as ZF2FT from Little Cayman in the upcoming ARRL DX SSB contest
with three other Shreveport-area operators. The DXpedition (with W5AU,
N5OCD, and N5XIQ) will go forward and, if permitted, they will use Floyd's
call, ZF2FT, in memorium. God Bless them both.
--------- Wes Attaway (N5WA) ---------
2048 Pepper Ridge, Shreveport, LA 71115
Tel: 318-7973012 --- Fax: 318-7974972
e-mail: wes at prysm.net
---------------------------------------
>From Bob Harrison (G4UJS)" <bobg4ujs at netcentral.co.uk Sat Feb 24 12:23:17 1996
From: Bob Harrison (G4UJS)" <bobg4ujs at netcentral.co.uk (Bob Harrison (G4UJS))
Date: Sat, 24 Feb 1996 12:23:17 GMT
Subject: Vectronics HFT1500 ATU ??
Message-ID: <199602241223.MAA22657 at net1.netcentral.co.uk>
Hi,
I am thinking of treating myself to a new QRO ATU having just vapourised the
directional coupler in my YAESU FC-102 Tuner for the 3rd time (hi hi)
The Vectronics HFT1500 sounds interesting although I have never seen one.
I am therefore looking for any info about the Vectronics HFT1500, what do
you think of it?
Someone said it has a digital PEP power meter...is this so?
Thanks in anticipation 73 de Bob G4UJS
>From Bob Harrison (G4UJS)" <bobg4ujs at netcentral.co.uk Sat Feb 24 12:33:33 1996
From: Bob Harrison (G4UJS)" <bobg4ujs at netcentral.co.uk (Bob Harrison (G4UJS))
Date: Sat, 24 Feb 1996 12:33:33 GMT
Subject: Vectronics HFT1500 ATU ??
Message-ID: <199602241233.MAA23300 at net1.netcentral.co.uk>
Hi,
I am thinking of treating myself to a new QRO ATU having just vapourised the
directional coupler in my YAESU FC-102 Tuner for the 3rd time (hi hi)
The Vectronics HFT1500 sounds interesting although I have never seen one.
I am therefore looking for any info about the Vectronics HFT1500, what do
you think of it?
Someone said it has a digital PEP power meter...is this so?
Thanks in anticipation 73 de Bob G4UJS
>From Charles H. Harpole" <harpole at pegasus.cc.ucf.edu Sat Feb 24 13:32:04 1996
From: Charles H. Harpole" <harpole at pegasus.cc.ucf.edu (Charles H. Harpole)
Date: Sat, 24 Feb 1996 08:32:04 -0500 (EST)
Subject: Antenna comparative performance
Message-ID: <Pine.SOL.3.91.960224082642.15158C-100000 at Pegasus>
To all Gear Heads:
Please stop trying to assert the superiority of computer modeling over
field experience (esp. lots of field reports). Your computer models
simply can not account for all the factors in actual antenna
performance. There are just too many variables.
I, too, teach in college, likely the place you were taught to serve the
computer as a tool for final answers. But, colleges over did it on you.
Give me a side by side comparison on the air in the field from many
DISTANT rcve sites, then make some tentative conclusions.
73, Charlie K4VUD
>From Charles H. Harpole" <harpole at pegasus.cc.ucf.edu Sat Feb 24 13:48:48 1996
From: Charles H. Harpole" <harpole at pegasus.cc.ucf.edu (Charles H. Harpole)
Date: Sat, 24 Feb 1996 08:48:48 -0500 (EST)
Subject: What REALLY makes you good?
Message-ID: <Pine.SOL.3.91.960224084408.15158G-100000 at Pegasus>
Great comments Trey!
>From my watching contesters, I think the biggest skill builder is
operating a sub-standard station/antennas. I have seen and heard several
spoiled big-station operators not hear really good mults. call them
during a run, but they don't stop to LISTEN. Didn't somebody say, you
can't work 'em if you can't hear them. Lesser pistol stations force the
operator to listen better and to practice finesse over brute power.
73, K4VUD
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