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Re: radio shack roll up antenna as counterpoise

Sharyl - W3VET
 

By the way for those who don't know,
the radio Shack roll up is designed like a very small chalk line reel.
works the same.
cheers,
sas
Re: W4RT stuff

Elliott
 

Bill:

Barry W4WB confirmed that the battery can be charged via the normal internal path and timer settings.

Elliott WA6TLA

Bill Gerth wrote:

We probably need to get the designers involved here. I'm only a potential
customer hoping to pick mine up at Dayton.

However, in the meantime, here is my take on the charging question:

Since the ONLY connection between the 817 and the One Plug Power (OPP)
battery is the Yaesu Molex connector in the battery compartment of the
radio, the OPP battery CAN be charged from the external power jack on the
rear deck of the radio. It would look to the radio like the stock Yaesu
NiCd battery pack. The OPP would, however in that case, be subject to all
the limitations of the constant current, timed charger in the radio,
requiring 16-20 hours to get a full charge into the 1650 MaH NiMH pack. The
new jack on the new door allows FAST charging in 3 hours with total
isolation from the 817 with over-current and thermal protection.

I'll see if I can get confirmation of this from theW4RT Electronics folks
and let you know.

73,

Bill
W4RK
Nashville, TN
USA

----- Original Message -----
From: "David Henn" <drhenn@...>
To: <FT817@...>
Sent: Wednesday, May 16, 2001 11:22 AM
Subject: [FT817] Re: W4RT stuff

--- In FT817@y..., Elliott <edl@p...> wrote:
The battery can be charged throught the radio from an external 13v
supply.
73
Elliott WA6TLA
Hello Elliot,

Apparently not.
You can only charge the New pack through it's own New connector.

So you need to buy/have a charger,and still have a PSU also.

Rgds
David


***____FLASH_____**
FT-817 users GET TOGETHER at Dayton Hamvention Saturday at 3PM. Meet at
the food court nearest to the Yaesu booth. 439.125 simplex.
To unsubscribe from this group, send an email to:
FT817-unsubscribe@... and for a great FAQ ( Frequently Asked
Questions ) see



Your use of Yahoo! Groups is subject to

***____FLASH_____**
FT-817 users GET TOGETHER at Dayton Hamvention Saturday at 3PM. Meet at the food court nearest to the Yaesu booth. 439.125 simplex.
To unsubscribe from this group, send an email to:
FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see



Your use of Yahoo! Groups is subject to

Re: Antennas

Michael Minor
 

Surely you can find some lighter than 70 pounds. man that is heavy for an ant.. HEE HEE just kidding....


From: julian@...
Reply-To: FT817@...
To: FT817@...
Subject: [FT817] Re: Antennas
Date: Wed, 16 May 2001 16:56:59 -0000

Pro-Am do a whip with 4 top loading coils covering 10, 15, 20 and 40
I believe. Two of those back to back would make a nice 4 band dipole
I should think, although as the whips are 100 inches tall it would
not exactly be small. As they are 70 pounds each over here I am not
going to buy two just for an experiment, but would like to know if
anyone has tried them as a dipole to see if they work.

Julian, G4ILO

--- In FT817@y..., "David Henn" <drhenn@y...> wrote:

Hello Fil,

I have 2 "12M" Hamstiks being delivered today for that purpose.
I bought a regular 3/8 adapter, and a SO239 - 3/8 from RS.
They are already mounted on a Aluminum L bracket ready to go.
Hopefully I be able to try it this weekend.

With the Z11 ATU it should give me a couple of bands, 10,12,15.

Rgds
David
_________________________________________________________________
Get your FREE download of MSN Explorer at

Re: PSK31 and HL50 mods (long)

F.B. Nutter, Jr.
 

Hi Folks,
This may sound odd, but I'm have been bitten by the QRP bug. Could
someone please tell me who makes the HL-50B amp & what is the URL of
where I can buy one?
73, Fil, W8FIL

Mike Agner wrote:

There were several messages a while back about how to create
your own cables for running the 817 in PSK31 mode. But for
those that want something different, here are the 4 or so
manufacturers that handle soundcard interfaces I know about
from the famous goodies list. There may be more of these, of
course, and if I have left someone out, please let me know:
--------------------
A. Rigblaster and Nomic
West Mountain Radio
18 Sheehan Avenue
Norwalk, CT 06854
Phone 203.853.8080
Fax 203.299.0232
URL:

B. Tigertronics Signalink Sound Card Interface
P.O. Box 5210 Grants Pass, Oregon 97527
Phone: 1-800-8BAYPAC (822-9722) FAX: (541)474-6703
URL:

C. PSK31 Isoterm
Mr J Melvin
2 Salters Court,
Gosforth,
Newcastle upon Tyne.
NE3 5BH.
ENGLAND.
Phone: 0191 2843028
Email: psk31@...
URL:

D. Windows SSTV VOX controller (useful for other modes, too)
Peter Lockwood G8SLB, 36 Davington Road, Dagenham, Essex, RM8 2LR

Email: G8SLB@...
URL:

E. The 'Rascal' and the 'Rascal Isolated' interfaces
BUX CommCo
115 Luenburg Drive
Evington, VA 24550
FAX: (804) 525-7818
URL:
--------------------------------------

Now about the HL50 mods:
These messages came in a while back and has very good
information on what to do. Note that I have left the ids
intact so someone can email these folks for more information:
---------------------------------
Date: Tue, 10 Apr 2001 07:57:20 -0400
From: "John O. Newell" <jnewell@...>
Subject: HL-50B Mod

During an HF-Pack QSO on Saturday, Norman K2YEW mentioned
that Tokyo Hy-Power would supply details on a mod to the
HL-50B amp that will allow full drive from 5w. (My LDG DWM
shows about 45w out from 5w drive using the 0-150w HF
sensor.) Bob KC3VO also mentioned a mod and offered to talk
it through on the telephone, but I've never followed up
because I hesitate to disturb the peace with the ring of the
telephone -- not sure whether this is the same mod. Anyway,
I emailed THP and with their usual blindingly fast and
friendly service, THP sent me the following information.

Replace existing components with new components (#s from
schematic supplied with amp):
R8 3.3 kOhm 0.25-0.50 Watt
R10 620 Ohm 2 Watt
R11 56 Ohm 2 Watt
R14 620 Ohm 1 Watt

Haven't tried it yet and all the usual disclaimers apply.

Date: Tue, 10 Apr 2001 12:13:07
From: "V G" <pmb1010@...>
Subject: Re: HL-50B Mod

I retrofitted my HL50B with the mentioned parts,
works perfect. 50w minimum now, and 60 on a couple
of bands (40 and 30, I think).
Be careful when you remove the board from the case.
The ribbon cable to front faceplate is very fragile.
I removed only the back cover and flipped the board over
with the ribbon cable, which was a mistake. Take off
both covers. I had to refab my ribbon cable when i
broke a couple of the delicate wires...
By the way, there are 2 schematics floating around.
The one I got with my rig was wrong. THP will gladly
fax the correct one you you for the asking. Those guys
REALLY know the meaning of "customer service"!
Vic K2YW


Date: Tue, 10 Apr 2001 12:58:57 EDT
From: K2YEW@...
Subject: Re: [HFpack] HL-50B Mod

Dear John,
FB on you purchasing the four resistors needed for the modification in
order
to drive the HL-50B HF brick amplifier to its maximum output with only
the 5
Watt output of the Yaesu FT-817 transceiver. After installing this
mod, here
are the results, being careful to establish a perfectly flat 50 Ohm
load on
the amplifier, 13.8 volts on the amplifier/FT-817, and measuring the
power on
the power scale of my MFJ 969 tuner:


1/2W drive ---------------------------- 6W output [1 green light lit]
1W drive ------------------------------- 20W output [2 green lights
lit]
2-1/2W drive ------------------------- 45W output [4 green lights lit]

5W drive ------------------------------ 65W output [5 green lights
lit]

73s Mike






***____FLASH_____**
FT-817 users GET TOGETHER at Dayton Hamvention Saturday at 3PM. Meet
at the food court nearest to the Yaesu booth. 439.125 simplex.
To unsubscribe from this group, send an email to:
FT817-unsubscribe@... and for a great FAQ ( Frequently Asked
Questions ) see



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chalk line explanation

Sharyl - W3VET
 

1. take a chalk like which has a geared reduction take up spool.

2. get some small gauge, Teflon coated wire, (very slippery, one can easily
UN-knot it)

3. diss-assemble the chalk line.

4. discard the string.

5 strip off some insulation and make a knot attaching it to the take-up
reel.

6. reassemble the chalk line. on the back end of the chalk line case,
attach something to the screw holding the chalk line case together. Like a
loop of wire stuffed into a connector to hang the chalk line with.

7. wind up as much wire as you can. you can easily get 1/4 wave at 80 meters
on it. (approx. 66 feet)

9. find a place to hang the chalk line for this will be the end of the wire.

10. always use the full length to avoid a coil on the end.

11. Make 2 of them, get a bnc/test lead connector put it on the radio, put
fittings on the wire to fit the test lead connector, use chopsticks as a
dielectric until you reach elevation. then spread the ends however you can.

11A. Use a tuner.

12. stop trying to untangle wire. This dipole takes less time to put away
than it takes to put up because of the reels.

13. please excuse my spellin <()>
I'm going to post photos of this soon.
Please visit Bonnie's MINIBAC page to see the antenna. The chalk line reels
are just a recent development.
Sharyl
Re: MP-1 vs ATX

 

-- In FT817@y..., julian@t... wrote:
With this won't you need to use bare wire?
Otherwise as you reel it out you'll get a lengthening counterpoise
terminated in a reducing value inductor?

Julian, G4ILO
Hi Julian,
It is a trade off for Convenience.

You are right, It will be a different length than a single wire,
due to what's left coiled up in the holder(inductor.?).

But..
Once you have found the right length(s) though,
It should be repeatable.
Use white insulated wire,and mark with indelible lines ..
| = 10M, || = 12 M etc

Rgds
David
Re: Antennas

[email protected]
 

Pro-Am do a whip with 4 top loading coils covering 10, 15, 20 and 40
I believe. Two of those back to back would make a nice 4 band dipole
I should think, although as the whips are 100 inches tall it would
not exactly be small. As they are 70 pounds each over here I am not
going to buy two just for an experiment, but would like to know if
anyone has tried them as a dipole to see if they work.

Julian, G4ILO

--- In FT817@y..., "David Henn" <drhenn@y...> wrote:

Hello Fil,

I have 2 "12M" Hamstiks being delivered today for that purpose.
I bought a regular 3/8 adapter, and a SO239 - 3/8 from RS.
They are already mounted on a Aluminum L bracket ready to go.
Hopefully I be able to try it this weekend.

With the Z11 ATU it should give me a couple of bands, 10,12,15.

Rgds
David
Re: Maldol mini-dipole and portable 10' mast

F.B. Nutter, Jr.
 

Another antenna support option is a replacement fiberglass tent pole. I
got 1 at Wal-Mart for about $6. It's about 8' long, held together by a
shock cord run thru the center. It has aluminum couplers on 1 end of
each piece & folds into 4 pieces. I haven't used it with an FT-817 yet
(haven't sold enough excess gear) but it works great for 2m portable
ops.
73, Fil W8FIL

Richard B Drake wrote:

Peter,

I find your post very interesting. I just ordered an 817 yesterday
and without even trying it yet, or seeing your post until just
now, I ordered a pair of 20 meter Maldol whips having in mind to
do almost exactly what you describe, right down to using the Radio
Shack mini box and connectors to make the center junction. If it
works out OK I'll get pairs of loading coils for the other bands.
I guess I have enough experience with whips and verticals to know
that this thing is not going to work very well without a good
counterpoise so let's dispense with that idea right off the bat.
The dipole configuration solves that problem. However, one
difference in my plan is instead of using the PVC pipe as a mast
at the center of a horizontal dipole, I would slide one of the
whips into the PVC pipe for support and configure it as a center
fed "vertical" dipole. I should be able to mount that as a
temporary antenna on my boat simply by standing it up in a fishing
rod holder. I wonder if anyone has tried anything like that? I'll
look forward to any pointers you may be able to provide and I will
certainly share my own experiences with the group.

----
73, Rich - W3ZJ

From: "Peter A. Brandenberg" <peter@b...>
Date: Fri May 11, 2001 11:30 pm
Subject: Maldol mini-dipole and portable 10' mast.


I was tired of trying to match a counterpoise to my Maldols, so I
made a
small dipole out of a set of two for each band. It works like a
charm! I
used a Radio Shack plastic box about 1.5" x 3" and put a coax
connector at
the end, and on either side a male jack for each of the Maldol
whips. Then
I bought a 10' length of 3/4" PVC and cut it into 24" pieces with
connecting
sleeves at the end of each piece. Then I can easily carry the
whole
shebang, 817, paddle, mike, battery, dipoles, and 10' mast in a
small
carrying case for easy setup.

I also have the auto-tuner that helps get the SWR to 1:1. I found
that the
20 meter Maldol is resonant at 13.8 and to get it up to 14.05 or
higher I
have to compress the whips several inches, losing radiation area.

I'd be happy to share details should anyone want them.

Also can someone tell me how I can get the 817 up to 5 watts if I
use a 12
volt battery???? Apparently if the radio doesn't see 13 volts it
runs only
2.5 watts. That is dumb!

Thanks, 73, Peter K2MMT



-----
73, Rich - W3ZJ
www.w3zj.com


Yahoo! Groups Sponsor
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***____FLASH_____**
FT-817 users GET TOGETHER at Dayton Hamvention Saturday at 3PM. Meet
at the food court nearest to the Yaesu booth. 439.125 simplex.
To unsubscribe from this group, send an email to:
FT817-unsubscribe@... and for a great FAQ ( Frequently Asked
Questions ) see



Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: radio shack roll up antenna as counterpoise

[email protected]
 

--- In FT817@y..., "Sharyl - W3VET" <w3vet@a...> wrote:

I almost bought the radio shack antenna until I realized it was
insulated
wire. I guess that if it is only partly unwound, then the end will
have a
coil on it.
I wouldn't want to have that on the end of a dipole but I just
don't know
about that the use in a counterpoise. (I hope some else comments on
this )

It might work on the lower bands (I used a coil of wire to shorten
the standalone 40m counterpoise for the ATX, as detailed in Monday's
posting) but the problem is as the counterpoise length increases the
coil value decreases, which will tend to cancel each other out. A
better solution would be a steel measuring tape, if you can find one
that is not painted, so the turns short together when they are reeled
in.


Just to you Julian,
Is it SWR bars on the transmitter that you are referring to for your
measurements?
If you are using an antenna analyzer you may be near a commercial
transmitter 5 miles or so and the readings can be pretty weird.
I did the measurements using a separate SWR meter, or using the
Elecraft K2 which has a built-in SWR readout.

Julian, G4ILO
Re: W4RT stuff

 

We probably need to get the designers involved here. I'm only a potential
customer hoping to pick mine up at Dayton.

However, in the meantime, here is my take on the charging question:

Since the ONLY connection between the 817 and the One Plug Power (OPP)
battery is the Yaesu Molex connector in the battery compartment of the
radio, the OPP battery CAN be charged from the external power jack on the
rear deck of the radio. It would look to the radio like the stock Yaesu
NiCd battery pack. The OPP would, however in that case, be subject to all
the limitations of the constant current, timed charger in the radio,
requiring 16-20 hours to get a full charge into the 1650 MaH NiMH pack. The
new jack on the new door allows FAST charging in 3 hours with total
isolation from the 817 with over-current and thermal protection.

I'll see if I can get confirmation of this from theW4RT Electronics folks
and let you know.

73,

Bill
W4RK
Nashville, TN
USA

----- Original Message -----
From: "David Henn" <drhenn@...>
To: <FT817@...>
Sent: Wednesday, May 16, 2001 11:22 AM
Subject: [FT817] Re: W4RT stuff


--- In FT817@y..., Elliott <edl@p...> wrote:
The battery can be charged throught the radio from an external 13v
supply.
73
Elliott WA6TLA
Hello Elliot,

Apparently not.
You can only charge the New pack through it's own New connector.

So you need to buy/have a charger,and still have a PSU also.

Rgds
David


***____FLASH_____**
FT-817 users GET TOGETHER at Dayton Hamvention Saturday at 3PM. Meet at
the food court nearest to the Yaesu booth. 439.125 simplex.
To unsubscribe from this group, send an email to:
FT817-unsubscribe@... and for a great FAQ ( Frequently Asked
Questions ) see



Your use of Yahoo! Groups is subject to

Re: MP-1 vs ATX

[email protected]
 

With this (and the chalk line reel the purpose of which I can't for
the life of me figure out) won't you need to use bare wire? otherwise
as you reel it out you'll get a lengthening counterpoise terminated
in a reducing value inductor?

Julian, G4ILO

--- In FT817@y..., "David Henn" <drhenn@y...> wrote:

Hello Julian,,

Not exactly a counterpoise, Credit Card Phone/Modem cable holder..
I'm sure you can get them in the U.K



But, Pull out the existing modem/phone wire.
Then use it for winding your counterpoise wire on.. JAT
Thinking about it,
Mount 2 on a piece of plastic and make a retractable dipole.

Best Rgds - David
Re: MP-1 vs ATX

[email protected]
 

I posted them in a message to this list on Monday.

Julian, G4ILO

--- In FT817@y..., "Ed Juge/NM" <ed@j...> wrote:

So, Julian, what lengths did you hit upon that work well?

Ed, W5EJ
Re: MP-1 vs ATX

[email protected]
 

No mention of it on the site. Even orders to AK, HI, PR and VI
(wherever they are) must be done by phone.

Julian, G4ILO

--- In FT817@y..., Lazaro Munoz <laz@p...> wrote:

Have you tried www.radioshack.com, I do not know what their foreign
shipping policy is, but its worth a try.

laz -- k2laz
Re: W4RT stuff

 

--- In FT817@y..., Elliott <edl@p...> wrote:
The battery can be charged throught the radio from an external 13v
supply.
73
Elliott WA6TLA
Hello Elliot,

Apparently not.
You can only charge the New pack through it's own New connector.

So you need to buy/have a charger,and still have a PSU also.

Rgds
David
Re: Antennas

 

--- In FT817@y..., "F.B. Nutter, Jr." <fbnjr@m...> wrote:
Hi Group,
I don't know why someone hasn't suggested the following.
Several companies make hardware for using 2 "HamStick"
antennas in either a vertical or horizontal configuration.
73, Fil W8FIL
Hello Fil,

I have 2 "12M" Hamstiks being delivered today for that purpose.
I bought a regular 3/8 adapter, and a SO239 - 3/8 from RS.
They are already mounted on a Aluminum L bracket ready to go.
Hopefully I be able to try it this weekend.

With the Z11 ATU it should give me a couple of bands, 10,12,15.

Rgds
David
radio shack roll up antenna as counterpoise

Sharyl - W3VET
 

Julian, G4ILO wrote:

The idea of using a counterpoise made from a "roll-up" short wave
antenna seems a good one. Unfortunately as so often I find myself
cursing the fact that I do not live in the US because I have no Radio
Shack shops where I can obtain one.
I almost bought the radio shack antenna until I realized it was insulated
wire. I guess that if it is only partly unwound, then the end will have a
coil on it.
I wouldn't want to have that on the end of a dipole but I just don't know
about that the use in a counterpoise. (I hope some else comments on this )

If we can assume this is OK to do then you could just solder a wire or a
clip to the end of the measuring tape or use a small nut and bolt scraping
the shield.

You can also take a plastic chalkline that carpenters use, discard the
string, put wire on the spool with clips on the end.
If you take 2 of those and some chopsticks and rubber bands then you also
have a dipole with open feed ladder line.
This idea is Bonnie Crystal, KQ6XA's Idea and it is called the "MINIBAC"
Here is the page on it

I am using some # 22 wire and I get 77 feet on each chalk line. The secret
is to completely unwind each line.

73 DE Sharyl W3VET


Just to you Julian,
Is it SWR bars on the transmitter that you are referring to for your
measurements?
If you are using an antenna analyzer you may be near a commercial
transmitter 5 miles or so and the readings can be pretty weird.
Re: W4RT stuff

 

David,

The purpose of the new jack on the new door is strictly for charging, not to
power the 817 from an external source. The rear deck external power
connector on the 817 already does that. The charging cord used with the new
jack in the new door is removed after charging, before using the 817 on
internal battery power. Another point is that, since the new jack
completely isolates the One Plug Power battery from the 817 during charging,
you can operate the 817 on external power via the rear deck connector while
fast charging the internal battery.

73,

Bill
W4RK
Nashville, TN
USA

----- Original Message -----
From: "David Henn" <drhenn@...>
To: <FT817@...>
Sent: Wednesday, May 16, 2001 10:47 AM
Subject: [FT817] Re: W4RT stuff


--- In FT817@y..., "Bill Gerth" <bgerth@a...> wrote:
David,
Yes, you charge thru the new socket on the new battery compartment
door.
Consequently you'd need a charger since.
Hope this helps,

Bill
W4RK
Nashville, TN
USA
Hello Bill,

Many thanks for the prompt response and answers.

Still not sure of the rationale behind having a separate connector.
I will still need to plug the radio into a separate PSU to use it.

Best Regards - David


***____FLASH_____**
FT-817 users GET TOGETHER at Dayton Hamvention Saturday at 3PM. Meet at
the food court nearest to the Yaesu booth. 439.125 simplex.
To unsubscribe from this group, send an email to:
FT817-unsubscribe@... and for a great FAQ ( Frequently Asked
Questions ) see



Your use of Yahoo! Groups is subject to

Re: W4RT stuff

Elliott
 

The battery can be charged throught the radio from an external 13v supply. I believe the thinking behind the use of a separate charging
jack, for quick charging, is to eliminate the potential damage to the delicate internal molex connect from repeated make-break cycles.
A very clever idea!!

73
Elliott WA6TLA

David Henn wrote:

--- In FT817@y..., "Bill Gerth" <bgerth@a...> wrote:
David,
Yes, you charge thru the new socket on the new battery compartment
door.
Consequently you'd need a charger since.
Hope this helps,

Bill
W4RK
Nashville, TN
USA
Hello Bill,

Many thanks for the prompt response and answers.

Still not sure of the rationale behind having a separate connector.
I will still need to plug the radio into a separate PSU to use it.

Best Regards - David

***____FLASH_____**
FT-817 users GET TOGETHER at Dayton Hamvention Saturday at 3PM. Meet at the food court nearest to the Yaesu booth. 439.125 simplex.
To unsubscribe from this group, send an email to:
FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see



Your use of Yahoo! Groups is subject to

Antennas

F.B. Nutter, Jr.
 

Hi Group,
With all this antenna talk I don't know why someone hasn't suggested
the following.
Several companies (transeltech.com & a few others I can't remember
come to mind) make hardware for using 2 "HamStick" antennas in either a
vertical or horizontal configuration. They can be used to make a small
relatively inexpensive antennas. I have used them with my Paragon when
storms have taken my other antennas down & also with a Scout portable.
Them work great & are very easy to tune. Set the whip once, mark it &
you're set. I'd like to hear about anyone else's experience with this
antenna arrangement.
73, Fil W8FIL
Re: W4RT stuff

 

--- In FT817@y..., "Bill Gerth" <bgerth@a...> wrote:
David,
Yes, you charge thru the new socket on the new battery compartment
door.
Consequently you'd need a charger since.
Hope this helps,

Bill
W4RK
Nashville, TN
USA
Hello Bill,

Many thanks for the prompt response and answers.

Still not sure of the rationale behind having a separate connector.
I will still need to plug the radio into a separate PSU to use it.

Best Regards - David
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