Specifications

POWER OUTPUT
How can I tell the current power output setting or what does the icon mean?
See page 28 in the Operator's Manual. There are two situations to consider, viz., when
operating from an external power source or the internal battery pack. In both cases, when
the power output icon shows 1 bar, it indicates 500 mW, 2 bars indicates 1 W, and 3 bars
indicates 2.5 W. When using the internal battery pack, a flashing 3-bar icon indicates 5 W.
When using an external power source, the icon is OFF or not visible for the 5 W setting.
05/03/01
POWER OUTPUT
Can the power level be set differently for each band (HF/50/144/430)?
NO. Although the Operating Manual (bottom of page 28) states that one can set the power
level differently for each band (HF/50/144/430), it does not seem to be the case. Yaesu
has been notified of this issue.
02/04/01
POWER SUPPLY
Is there a light-weight power supply that can be used with the FT-817?
YES, there are a number of them. One relatively inexpensive, small, and light-weight
power for the FT-817 is the Radio Shack part number 22-503. Regular price is $50.
Beware that this is a switching power supply and can create noise in the rig. This particular
power supply from Radio Shack has a mixed history. Some works just fine and others are
noisy. You might take your rig to the store and try out different ones until you fine a quiet
one.
POWER SUPPLY
Is a very light-weight and compact power supply available that can be used over a
wide input voltage range?
YES. International Power Sources offers the Model CUP36-12-1 switching power supply. It
is rated at 13.5 V +/-4%, 2.4 A, 32 W continuous duty. The CUP36-12-1 is provided in a
non-vented 94V-0 rated polyphenylene oxide case only 4.3" x 2" x 0.8". Included is a
strain-relieved, six foot output cable with standard barrel type connectors. Full power
operation from 0 to 40ºC allows use in virtually any inside environment. Universal Input
allows input voltages of 90-264VAC without the need to configure the supply with jumpers,
switches or straps. Input to output isolation is 3000VAC for safety agency requirements.
Approvals have been received from UL, CSA and TÜV as well as it meets EMI limits per
FCC and CISPR. Output voltage accuracy is better than 2% at full line, load and
temperature range. Fully loaded 100% burn-in greatly enhances reliability. Protection is
provided for overvoltage, short circuit and input surge. More information can be found at
http://www.intlpower.com/series/cup36.html that includes a link to a pdf version of the
complete specification sheet. (Ed.: My lab and operational measurements of this power
supply have validated the specifications. It works great with my FT-817. See TOPIC-
CONNECTORS or POWER SUPPLY for information about the correct power plug to
install.) NOTE: It is reported that Morse Express/Miles Technologies
(http://www.morsex.com), Universal Radio (http://www.universal-
radio.com/catalog/hamps/0565.html), and ForeSight Electronics (http://www.fse-
power.com/html/ips_tabletops.html and 800-253-0490) are now selling the CUP36-12-1.
04/09/01-R