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G4XNH > FT-817 02.01.07 12:55l 101 Lines 4240 Bytes #999 (0) @ WW
BID : 12491-GB7FCR
Read: GUEST DL1RX VE7HFY DG4IAK
Subj: Re: Green wire mod,empty cell case
Path: DB0FHN<DB0MRW<DB0SON<DB0HBN<DB0SWR<DK0WUE<GB7FCR
Sent: 070102/1037Z @:GB7FCR.#16.GBR.EU #:12491 [Blackpool] FBB-7.03a $:12491-GB
From: G4XNH@GB7FCR.#16.GBR.EU
To : FT-817@WW
Hi Andy,
Thank you for your comments.
What a farce. Most of your msg was missing and what was left was chopped
up (An ongoing fault on my Winpack ever since I experimentally changed
Winpack fonts. No amount of "Column" adjustments seems to be effective and
changing back did nothing) so I had to download it and save it to reply.
Andy, GM7HUD wrote:-
>
> 3 Flashing bars is 5W, 3 steady bars is 2.5W
This comment has caused me to have a rethink. I wrote the reply below
because of not just one, but two, specification sheets for the FT-817ND
that I downlaoded BEFORE I purchased the FT-817ND. Because of your comment
conflicted with my previous knowledge I did some testing.
---
That is incorrect. According to my specs sheet, it only puts out 2.5w on
9.6v batteries and 5w on 13.8v.
3 Flashing bars is 2.5w. See P.28 of the manual. The box at the bottom
"Adjusting the transmitter Output Power". It IS rather vague in this but
it IS only putting out 2.5w. ZERO lights\bars is 5w although this does not
seem to be be mentioned there (It tells you at the beginning that the
£processor drops the 5w setting to 2.5w, 3 flashing bars). Try it. If you
set it to 5w NO bars, then it swaps over to 3 flashing bars.
If you put the 817 on high power (5w) with a standard mains (regulated)
13.8v PSU, then with no bars showing it is putting out 5w. With 3 bars it
is 2.5w.
However, when you use LESS than 13.8v (My current car problem) as with the
internal batteries (8 x 1.2v only giving a nominal 9.6v as you are aware)
or with alkaline (8 x 1.5v giving only 12v which is STILL not enough to
provide 5w) with 3 bars showing solid it is putting out 2.5 watt, but at
high power setting (NO bars showing) it will revert (Assuming that it was
at NO bars at all, which is high power, in the first place) to three bars
flashing. This tells you that the 817 is only putting out 2.5w, the same
as with three bars solid.
Incidentally, on P.1. the Introduction, it is very ambiguous too and
states (after repeating my above comments that it automatically switches
to 2.5w power when on batteries), "Via the menu High Power may be selected
during battery operation providing as much as 5w output, depending on the
operating frequency".
This is obviously incorrect as the rig will NOT put out 5w on battery (or
car) power unless that voltage is raised (To 13.8v it seems).
-----
After reading your remark, I decided to check my facts before I sent the
above. Unfortunately, I need a new watt meter and have to use a cheap
SWR\power meter which gives indications but perhaps not the best.
When on 5w using my mains 13.8v PSU (Both of my expensive regulated [H.F.]
PSU's give out 14.2v) the power indicator on the rig is full scale, as it
is on the power SWR\Power meter (The Power\SWR meter reads "10+)
On internal batteries the rig reads less than FSD and the SWR\Power meter
reads "10" (It is just a reference marker and has no significance other
than as a refeence point).
All the other (3) readings whether on mains or battery are the same.
> Have you measured the power out into a dummy load?
No, but...
This does suggest, (Although it is not conclusive without a good watt
meter readout) that "Full power" on batteries IS less than five watts, but
not that much! Have you read your output on a good meter with both
supplies?
It obviously needs 13.8v to give 5w out and the battery will not supply
that except perhaps from a direct connection and even then only with a
running engine. Sad. 2.5w is not a problem but I want 5w!
On another tack. I wonder if you or 'tother Andy (Or anyone else with an
FT-817ND) have mod'ed yours to hang the mic on a better "notch" than the
useless provided "slot" in the shoulder strap which refuses to hold it? I
used the strap screws to attach a "U" notch mic holder and it now holds it
solid. Cured. Regards, Jeff. G4XNH.
73 - Jeff, G4XNH @ GB7FCR
Brightraven94atHotmail.com. Replace the "AT" with the "AT" symbol"@".
Interests. (Still) dowsing tunnels, graves and other strange things,
historical research, reading mainly local history, but also other, world
history.
Message timed: 19:54 on 2007-Jan-01
Message sent using WinPack-Telnet V6.80
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