Transceiver efficiencies (FT-897D, FTDX1200 and IC-7200)

The FT-897D is a very efficient transceiver for portable use, perhaps because it is designed for use with battery power in mind. As I recently purchased an Icom IC-7200 to replace it for HF use whilst portable, I thought I would do some tests on the efficiency of them both, and also my FTDX1200 for comparison. The IC-7200 is comparable to most other HF desktop transceivers, using up to 20A with a 100W carrier. See the plotted chart below:

Efficiency Chart

Comparing 3 transceivers for efficiency.

This table shows the test results. All tests into a 50Ω dummy load, at 13.8v on 7MHz:

Transceiver RX TX 5w TX 20w TX 50w TX 100w
FT-897D 0.6A 3.8A (9.5%) 6.3A (23%) 9.9A (36.6%) 13.4A (54%)
IC-7200 1.1A 7A (5.2%) 10.3A (14.1%) 14.7A (24.6%) 19.5A (37.1%)
FTDX1200 1.6A 8A (4.5%) 11.2A (12.9%) 15.1A (24%) 19.5A (37.1%)

It can be seen that the IC-7200 is ever so slightly more efficient than the FTDX1200, but neither is anywhere near the efficiency of the FT-897D. It will be interesting to see how the new Yaesu FT-991 compares to the FT-897D! In all cases, the more RF power you use, the more efficiency you are getting 😉

I have a 100AH Leisure Battery which still provides enough power for an afternoons operating with the IC-7200 at full power, so that will do me, although a bit more efficiency is always nice!

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  1. on my 2nd 897 now,swapped first for the ft 450 ,its a good alround rig,copies from Canada to new York ,cape town to Norway,all on 10ws,regards ken,m3zkb,rafars 4680

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