Increasing 817 Power Output

[email protected]

I have been hearing some rumors from some Hams in "VK Land" about the 
ability to increase the output of the 817 through a "hidden" menu.

Anyone heard anything else about this.  I'll be on a "QRP Dxpedition" 
in a few months and a few more watts would be nice.

Thanks in advance for any thoughts on this.

:harry edwards
W6DXO

#8219

The information on the hidden menu is in the FAQ on yahoogroups.com. But if
you are looking to destroy your radio or at the very least shorten it's life
for the sake of an imperceptible gain in signal strength, my advice is,
"DON'T DO IT"

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

Show quoted text

-----Original Message-----
  From: harry.edwards@... [mailto:harry.edwards@...]
  Sent: Thursday, June 21, 2001 5:50 PM
  To: FT817@...
  Subject: [FT817] Increasing 817 Power Output

  I have been hearing some rumors from some Hams in "VK Land" about the
  ability to increase the output of the 817 through a "hidden" menu.

  Anyone heard anything else about this.  I'll be on a "QRP Dxpedition"
  in a few months and a few more watts would be nice.

  Thanks in advance for any thoughts on this.

  :harry edwards
  W6DXO

        Yahoo! Groups Sponsor

  To unsubscribe from this group, send an email to:
  FT817-unsubscribe@... and for a great FAQ ( Frequently Asked
Questions ) see 
  Please note that your messages and files sent to this group become public
domain upon submission and may appear anywhere on the Internet or in print
without notice or compensation.

  Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

#8221

Duh, guess I got it wrong, I thought we were suppose to reduce power, 5
watts is overkill now!
-- 
Rich Clemens
clemens@...

Show quoted text

Anyone heard anything else about this.  I'll be on a "QRP Dxpedition"
in a few months and a few more watts would be nice.

#8224

--- In FT817@y..., harry.edwards@s... wrote:
I have been hearing some rumors from some Hams in "VK Land" about the 
ability to increase the output of the 817 through a "hidden" menu.

Anyone heard anything else about this.  I'll be on a "QRP Dxpedition" 
in a few months and a few more watts would be nice.

Thanks in advance for any thoughts on this.

:harry edwards
W6DXOHi Harry,

Best not to increase the power beyond the specified level to maintain 
the life cycle of the rig.  If you are going to operate SSB, then get 
the optional SSB filter and realize a couple of dB gain, use the Heil 
HC-4 or HC-5 element in your mic and get a bit more punch, and 
carefully adjust the 817 for your voice to achieve the greatest talk 
power and clarity.

You didn't say what type of DXpedition you plan, but the number one 
ingredient to success (after the bands being open of course) is 
having a really good antenna system. A little whip just doesn't cut 
it.

Gl es 72 de Barry - W4WB

[email protected]

#8227

--- In FT817@y..., harry.edwards@s... wrote:
I have been hearing some rumors from some Hams in "VK Land" about the 
ability to increase the output of the 817 through a "hidden" menu.

Anyone heard anything else about this.  I'll be on a "QRP Dxpedition" 
in a few months and a few more watts would be nice.

Thanks in advance for any thoughts on this.

:harry edwards
W6DXODear Harry,

DON'T DO IT!!!
Even if you double the power, at the most there will be half an S-
unit of difference... At the same time, the quality of the signal 
will be severely degraded (not that your 8-10 W signal will destroy 
the bands with splatter, but nearby stations WILL notice you). Also, 
you will be stressing the components in the transmitter chain - they 
are conservatively rated, by why take chances? If you blow something, 
you will HAVE to send the rig to YAESU.
If you need more power, you may build or buy an external amplifier, 
and keep your rig safe.

Good Luck
Tasos, SV8YM/2

[email protected]

#8239

Harry I am going to say the same thing dont do it, although the pa 
stages are valued @ 10watts each its the same as any other or most 
commercial transceivers its to safeguard the life of them.there would 
have been no point in Yaesu installing 5watters maximum for us to go 
and use the rig at five watts all the time they would burn out in no 
time at all. Another reason is the case is so tightly packed with 
components the heat factor would probably melt ur hand never mind the 
boards inside, theres no vents for heat dissipation after all.
Go on Knock a little amp up. Best of luck with the Dx-pedition

John G0VGZ.

--- In FT817@y..., harry.edwards@s... wrote:
I have been hearing some rumors from some Hams in "VK Land" about the 
ability to increase the output of the 817 through a "hidden" menu.

Anyone heard anything else about this.  I'll be on a "QRP Dxpedition" 
in a few months and a few more watts would be nice.

Thanks in advance for any thoughts on this.

:harry edwards
W6DXO

开云体育

Increasing 817 Power Output