开云体育

Hi,
Here's a question from a relatively new ham who travels a lot in and
out of the US.

Could I use some type of amplifier when using the 817 at home to get
more than 5 watts out? Any way to get 100 watts out of it with an
amp at home? How effective is 5 watts using voice when using it on
the road? Basically I'm looking for a all mode rig that travels well
but that I can still use at home as a primary HF rig.

Thanks for the basic questions...sorry if it's been covered before.

73,
John, KB1ERG

On Fri, 3 Nov 2000 jstys@... wrote:

Could I use some type of amplifier when using the 817 at home to get
more than 5 watts out? Any way to get 100 watts out of it with an
amp at home? How effective is 5 watts using voice when using it on
the road? Basically I'm looking for a all mode rig that travels well
but that I can still use at home as a primary HF rig.

If you think of the FT-817 as a portable, battery operated rig, and are
satisfied with the 5 watt power limit (actually, 2 watts under battery
power) then you don't need or want an amplifier. After all, you have to
come up with 20 amps or so of current for the amp! How effective would
that be if you want to travel lightly?

If you are looking for a 100 watt do-everything radio. Just spend the
couple hundred bucks extra and buy the FT-100.

I almost never run more than 5 watts on HF, but I also operate almost
exclusively CW. 5 watts is very effective and if I recall correctly, it's
really only about 5 "S" units weaker than a 100 watt station.

73! =paul= W8KC
Collector of Ten*Tecs and other fine plastics.
Visit the Virtual Ten*Tec Museum at:
<>

Could I use some type of amplifier when using the 817 at home to get
more than 5 watts out? Any way to get 100 watts out of it with an
amp at home? How effective is 5 watts using voice when using it on
the road? Basically I'm looking for a all mode rig that travels well
but that I can still use at home as a primary HF rig.

If you think of the FT-817 as a portable, battery operated rig, and are
satisfied with the 5 watt power limit (actually, 2 watts under battery
power) then you don't need or want an amplifier. After all, you have to
come up with 20 amps or so of current for the amp! How effective would
that be if you want to travel lightly?

But... he said he wants 5 watts on the road, and 100 watts at home. An
amplifier is a good solution

Pres Waterman W2PW
c/o Patchogue Motors, Inc.
Long Island Ford and Kia dealer

GO BILLS!

I do all my operating at <5 watts and have over 230 DXCC contacts on SSB.
The problem on the road is having a good antenna.
I also think higher bands will be much more productive on QRP SSB.

jstys@... wrote:

Actually, 100 watts is only slightly over 2 S-units stronger than 5 watts.
Paul, 5 watts should be fine unless you wish to talk to the lids on 75M, who won't pay any attention to you if you're not 40 over 9. They have nothing interesting to say anyway.
If you want to run more power either at home or mobile, get yourself an Ameritron ALS-500M or one of the solid-state amps you can find for sale in the Amateur Radio Trader and other places. Of course, either of these options only work with HF; but Mirage can help you with the other bands.
Tracy, KU4FL

From: "Paul R. Valko" <prvalko@...>
Reply-To: FT817@...
To: FT817@...
Subject: Re: [FT817] Amplify output with 817
Date: Fri, 3 Nov 2000 13:18:32 -0500 (EST)


On Fri, 3 Nov 2000 jstys@... wrote:

Could I use some type of amplifier when using the 817 at home to get
more than 5 watts out? Any way to get 100 watts out of it with an
amp at home? How effective is 5 watts using voice when using it on
the road? Basically I'm looking for a all mode rig that travels well
but that I can still use at home as a primary HF rig.

If you think of the FT-817 as a portable, battery operated rig, and are
satisfied with the 5 watt power limit (actually, 2 watts under battery
power) then you don't need or want an amplifier. After all, you have to
come up with 20 amps or so of current for the amp! How effective would
that be if you want to travel lightly?

If you are looking for a 100 watt do-everything radio. Just spend the
couple hundred bucks extra and buy the FT-100.

I almost never run more than 5 watts on HF, but I also operate almost
exclusively CW. 5 watts is very effective and if I recall correctly, it's
really only about 5 "S" units weaker than a 100 watt station.

73! =paul= W8KC
Collector of Ten*Tecs and other fine plastics.
Visit the Virtual Ten*Tec Museum at:
<>

_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at .

Share information about yourself, create your own public profile at .

Hi,

Couldn't help but jump into this. I've had amps that use a 4CX250 and they
would be perfect candidates to run high power. The tube will cover HF/VHF/UHF
no problem. Since the tube is a tetrode, you voltage feed the grid and 5 watts
or even 2 watts is adequate. Big advantage is the specs (IMD, etc.) are better
than most, if not all, solidstate devices. Power out is 350 - 500 Watts, with
400watts being about optimum for clean signals.

There are amps currently surplused, AM-6155 or AM-6154, that are easy to mod
for 144, 222 or 432. I've looked at mod'ing one for 6 meters but I'm sure they
could even be modified for HF with no problem. Modifiying these amps for 144 -
432 is easy but for 6 or HF would take some redesign, both electronic and
mechanical and not for the newbie. Just a thought.

I do like the concept of the rig in general. I backpack and am into emergency
communications and this little rig certainly qualifys for these two scenarios.
I'm still waiting till the end of the month to get one. HRO in San Diego says
they won't have them till then, may end up being a Christmas present.... :-)

73, Kent, K6FQ