开云体育

I know this post will not say anything that all of you '817 owners
don't already know, but I just can't resist --

I have been a QRPer for 20 years, ever since I built my HW-8 back
about 1980. My Michigan QRP Club membership number is M-98, just to
give you an idea. I've had my FT-817 for two days, and I just can't
get over this rig. The bands were kinda stinko for most of the
weekend, but on Sunday night things started to pick up. Within ten
minutes on 17 meter SSB at around 0400Z I worked two OKs and one ZL.
The OKs were running hundreds of watts to big antennas (one was an
eleven element LP). The ZL was running 100w to a vertical, and we
chatted for about ten minutes with good copy, 52 to 55. My antenna
is
an end-fed random wire, 250 feet long, about 15 feet high. I've
always known that QRP works, but this rig is amazing.

So far I've had contacts on 160, 17, 15 (mobile), and 6, and
performance has been outstanding.

Today I looked at my truck, fully outfitted with an HF vertical,
halos
for six and two, and a dual band 2m/70cm whip and thought "and they
all connect to one radio...".

73 and hope to work you all,

Bill, KR8L/7

Has anyone tried lithium batteries? I can get them at the military exchange for $3.50 (USD) per pair. I am not sure the rating but I have used them in hand-held and got better life usage out of them. I know that my HP200 would last over a month on a pair vice the nicads that needed charging every week.

Stephen Souza
ssouza@...

Q: How many Internet mail list subscribers does it take to change a light
bulb?
A: 1,353

1 to change the light bulb and to post to the mail list that the light
bulb has been changed;
14 to share similar experiences of changing light bulbs and how the light
bulb could have been changed differently;
7 to caution about the dangers of changing light bulbs;
27 to point out spelling/grammar errors in posts about changing light
bulbs;
53 to flame the spell checkers;
10 to reminisce about their first time changing light bulbs
41 to correct spelling/grammar flames;
6 to argue over whether it's "lightbulb" or "light bulb"; another 6 to
condemn those 6 as anal-retentive;
156 to write to the list administrator about the light bulb discussion and
its inappropriateness to this mail list;
109 to post that this list is not about light bulbs and to please take this
email exchange to litebulb-l;
203 to demand that cross posting to grammar-l, spelling-l and illuminati-l
about changing light bulbs be stopped;
111 to defend the posting to this list saying that we all use light bulbs
and therefore the posts *are* relevant to this mail list;
306 to debate which method of changing light bulbs is superior, where to
buy the best light bulbs, what brand of light bulbs work best
for this technique and what brands are faulty;
27 to post URL's where one can see examples of different
light bulbs;
14 to post that the URL's were posted incorrectly and the post the
corrected URL's;
3 to post about links they found from the URL's that are relevant to
this list which makes light bulbs relevant to this list;
33 to link all posts to date, then quote them including all headers and
footers and then add "Me too";
12 to post to the list that they are unsubscribing because they cannot
handle the light bulb controversy;
19 to quote the "Me too's" to say "Me three";
4 to suggest that posters request the light bulb FAQ;
44 to ask what is "FAQ";
4 to say "didn't we go through this already a short time ago on
Usenet?"
43 to ask "what's Usenet?"

Band? Time?

david

For those who travel with their radios and would like more protection
than a soft case provides, Lowe's has a Task Force Aluminum Tool Case
with dividers, tool holder, and foam for $12.83. (SKU 24981)They were
$24.00 + last week. I picked up 2, one for the 817 and one for the
706. They aren't bad for the price, but I wouldn't run a truck over
them.

Jim N5TJZ

For those who travel with their radios and would like more protection
than a soft case provides, Lowe's has a Task Force Aluminum Tool Case
with dividers, tool holder and foam for $12.83. (SKU 24981)They were
$24.00 + last week. I picked up 2, one for the 817 and one for the
706. They aren't bad for the price. I wouldn't run a truck over them.

Jim N5TJZ

--- In FT817@y..., jrevans@h... wrote:

THE

PH-81-8-1800

from

www.greenbatteries.com

eight 1800mAhr AA cells
(that's right .. 1800 ! )
and a
2 hour fast charger
(it charges 4 at a time)
for
54.95 + 5.50

No radio mods required.

BCNU DE N2LO~>

Wal-Mart stock 1300mAhr AA cells, for approx. $10.99 / 4-pack. Carry
an extra set.

Pete, NI9N

--- In FT817@y..., "Newell, John O" <jnewell@g...> wrote:

We have found that the SSB filter does
give the 817 more kick in the SSB mode.

Which brings me to another possible angle on the question whether

the

ClearSpeech unit or the SSB filter might be the better purchase?

The CS

unit will (obviously) only help on rx, while the filter may help

both in rx

as well in tx. So, while both might help to pick out stations you

might

have missed or given up on otherwise, the filter may help you to

present a

workable sig to listening stations.

Having said that, I don't mean to imply that it's likely going to be

that

clear-cut; the filter wouldn't be a magic bullet. But being able to

hear

another station does't help if they can't or won't come back to you.

Unrelated Q: how much extra current (if any) does the SSB filter (or

the CW

filter, for that matter) soak up?

73
John Newell
KB1FPM

Has anyone looked into permanently replacing the standard SSB filter
with a narrow SSB filter?

Phil - AD5X

--- In FT817@y..., jrevans@h... wrote:

THE

PH-81-8-1800

from

www.greenbatteries.com

eight 1800mAhr AA cells
(that's right .. 1800 ! )
and a
2 hour fast charger
(it charges 4 at a time)
for
54.95 + 5.50

No radio mods required.

BCNU DE N2LO~>

Be carefull! I purchased 1800 mah Nimh batteries at Dayton. Their
outside diamter is a little larger than normal (at least the ones I
bought), and they don't fit in the FT-817 holder!! For about the same
price you can get the W4RT "One-plug power" unit that you can
quick charge with the external MaHa charger without removing the
battery pack.

Phil - AD5X

Glad you said nearly perfect.

Another point that I took away from the discussions of the internal battery
tray is that all of the parts involved have fairly high electrical
resistance, so a lot of current gets wasted heating conductors and perhaps
ultimately leading to failure of the spring coils in the tray.

73
John Newell
KB1FPM














































------------------------------------------------------------------------
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contain confidential or proprietary information and may be subject to the
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I've been thinking about this and I agree that there are differences
in the geometry and I'm sure that they would have an effect.

I have not had hands on a hex-beam. (I enjoy building
and playing with antennas much more than buying pre-made.)

You would only need to mount a thin pvc pipe through the center
of the x-beam to reconfigure it to a hex shape. Of course,
the builder would also have to adjust element lengths.

As for a portable operation; you could use a center plate
made of acrylic w/so-239 or BNC mounted in plate.
Attach the arms with bolts/wing nuts for easy field operation.
The arms could preferably be made of two pieces of
aluminum tubing each. Wires with ring connectors at the ends
could then be attached to end of legs with machine bolts/wing nuts.
Use a couple of pieces of PVC mounted to center plate for your
"spreader." Run your nylon cord around the perimeter.
You could even loop the cord through rings at the "drawn"
ends of the wire (to keep them pulled out). For my permanent
installation I use zip-ties to attach the ends to the cord.

As a variation to the above use PVC for the main arms and
run wire through/around the PVC. Understand that this will
definitely impact the tuning.

You may also possibly be able to use a fiberglass collapsable
tent pole for your "spreader" and aluminum tent poles for
your arms.

For construction I use a vertical drill press, although a
regular drill should be sufficient. A tube cutter is an
indespensable tool as well as an antenna analyzer.

I put my first X-beam together in a single afternoon using only
scrap parts on hand and hand tools. With the proper tools I
believe an individual could build and tune an X/Hex-beam and be on
the air in a weekend.

72/73,

Bryan – k0emt

Original Message <<<<<<<<<<<<<<<<<<

On 16-06-2001, 23:36:21, w4wb@... wrote regarding [FT817] Re: Small,
portable, light weight Hexbeam:

I think "extremely similar" is an overstatement of fact. This
comparison of the x-beam and Hexbeam has been put forth before, but
is IMO inapropriate. The geometry of the x-beam is somewhat like the
Hexbeam with its wings tucked in. Makes a big difference. Frankly,
there are aspects of the Hexbeam design/fabrication that makes it
just a bit tough for a homebrew.

Glad you said nearly perfect. I'd be concerned about the lack of
overcurrent and thermal protection for something which will live inside the
817. Also there is a convenience factor related to having to remove the
cells from the 817 and reinstall them after charging. Most of my
rechargeable battery experience is with NiCD's but I'm guessing the same
applies to NiMH cells and that is that the capacity specs are somewhat
sensitive to the discharge current at which the capacity is measured. More
than likely, some of the 1600 mAh cells on the market would show a 1800 mAh
capacity at a reduced discharged rate. I know that is true of my Radio
Shack NiMh pack which I use externally. It generally shows 1900 mAh on my
Maha charger when measuring capacity. I think the Maha discharge rate is
just over 300 mA. You certainly have a point about the economics of the
Greenbatteries price. Nice and low with charger included.

72,

Bill
W4RK
Nashville, TN
USA

We have found that the SSB filter does
give the 817 more kick in the SSB mode.

Which brings me to another possible angle on the question whether the
ClearSpeech unit or the SSB filter might be the better purchase? The CS
unit will (obviously) only help on rx, while the filter may help both in rx
as well in tx. So, while both might help to pick out stations you might
have missed or given up on otherwise, the filter may help you to present a
workable sig to listening stations.

Having said that, I don't mean to imply that it's likely going to be that
clear-cut; the filter wouldn't be a magic bullet. But being able to hear
another station does't help if they can't or won't come back to you.

Unrelated Q: how much extra current (if any) does the SSB filter (or the CW
filter, for that matter) soak up?

73
John Newell
KB1FPM























































------------------------------------------------------------------------
This message is intended only for the designated recipient(s). It may
contain confidential or proprietary information and may be subject to the
attorney-client privilege or other confidentiality protections. If you are
not a designated recipient, you may not review, copy or distribute
this message. If you receive this in error, please notify the sender by
reply e-mail and delete this message. Thank you.

THE

PH-81-8-1800

from

www.greenbatteries.com

eight 1800mAhr AA cells
(that's right .. 1800 ! )
and a
2 hour fast charger
(it charges 4 at a time)
for
54.95 + 5.50

No radio mods required.

BCNU DE N2LO~>

Hi
The 4.5V tap is the green wire on the alkaline battery pack.
It is used as a logical signal to inhibit charging.

73 LA9KW Hans Petter


--- In FT817@y..., werhr@y... wrote:

I just received a battery ( a W&W HC-091X4M-FNB72M) which is

supposed

to be a exact replacement for the orginal battery. Noticed on the
schematic that there is a requirement for a battery with a tap at

the

4.5 volt level. This buss is called the BATT buss. Anyone else run
into this? Do the orginal batteries from Yaesu have a tap at the

mid

point.

Thanks

Frank
W9LVC

Re: Your comment on road construction. You must have been in PA. We now live
in Southern Maryland and used to liven in NJ but we have friends and family
in PA and often travel through it. Every time we go there, we curse the PA
road department. It seems they like to block off 20 miles of road for
construction even though they are only actually working on 1 mile of it.
Sometimes they have so many roads blocked that it is difficult to find a
detour. What can I tell you, write to the PA road department :-)

As far as traffic around NYC at 8:00 PM on Sunday night. Well, if you lived
there, you would certainly want out for the weekend to enjoy some space and
fresh air. Assuming that most people need to return for work on Monday
morning they are on the road Sunday night. Welcome to NYC with 8 million
residents crowded into a few square miles. Boy, Southern Maryland is a great
place to live :-)

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

Hi Don,

We have found that the SSB filter does give the 817 more kick in the
SSB mode. On both RX and TX, speech is more distinct and the average
RF power increases about 2 dB. This is both by measurement and on-
the-air comments for a number of stations now. It is interesting to
note that a number of positive comments on the 817 audio quality with
the stock filter have been received; however, when I flip in the SSB
filter, the reports are that the audio quality is even better. I
agree that the RX inprovement is best experienced with a good
external speaker.

72 de Barry - W4WB


--- In FT817@y..., "Don" <k7ugq@h...> wrote:

The SSB filter does work. When using test equipment it is obvious

that a

difference has been made when switching the filter in and out. For

many

operators, the perception of a difference on receive is hard to

make. Try

using a larger external speaker and switch the filter in and out.

On

transmit, the filter also comes into play. You may have to ask a

friend to

report out on the difference. I believe the biggest significance

the SSB

filter plays is when using digital communication.

First, my ATX finally came from WiMo (purchased at Dayton), right
before I left. So I threw it in the bag (Army surplus map case,
lotsa room for wire, batteries, & pencils) & off we went. Got to
Valley Forge & went for a walk. Threw the ATX on the BNC connector,
listened a bit, walked, listened a bit more, made a couple calls &
SWR is throught the roof (yes, I had a counterpoise attached).
Realize that now I can't hear anything. Take the ATX off & whaddaya
know? The spike on the BNC connector is broken off. Needless to
say, I am NOT a happy camper. Haven't had time yet to contact WiMo
for a replacement....

Now, a question for Pres & the other East-Coasters on the list:
What in the @#$^%#@ is going on? Did you guys decide to rebuild
EVERY road east of the Pennsylvania - Ohio border all at once? And
what is up with traffic at 8:30PM local on a Sunday night through
NYC? It took 2-1/2 hours just to get through! So, I didn't get on
the air until much later than planned, and only for a very short time
on two evenings rather than every night. Didn't get any DX.

Thanks to those who listened for me, & sorry I didn't get to work
you....

You mentioned the CURRENT, at one ampere--What is the VOLTAGE during
transmit???

Activity has now slowed on the poll regarding the preferred
operating system for running memory management on a portable
computer. I will be closing the poll in 1 week's time, so
if you have a view on the subject and want to contribute then
do so before then!

Many thanks,

Bob G4HFQ