I took the decision. At last! I took the decision to participate in CQ- WW- 160-
Meter Contest. My setup for the Contest was IC- 718 and Beverage
Antenna described at Antentop- 01, 2015
(http://www.antentop.org/019/va3znw_019.htm). The antenna had termination resistor 450- Ohm/25- Wtt. It allowed me run the IC-718 on 50- Wtt without damage to Beverage’s termination load. So I
decided participate as Low Power (up to 150- Wtt)
Single Operator in the Contest.
Finally Friday -29 (2016) came in. Of course, when
I came home from my job I did not run to the transceiver like
a crazy rabbit. I would like do contesting for my pleasure not
for big result.
turned on. CQ TEST from USA stations blown up my headphones. I worked several
hours in the test and discovered that the 50- Watts is too little
to be heard. Then I took another decision. I increased output
power up to 100- watts (96- Wtt actually).
It gave result. Contest stations begun to answer me in much better
way (or it was seems to me…).
known that termination load at Beverage Antenna could not stand
100- watts for a long time. However I kept hope that frost (it
was minus 7 C degree) and wind (feels like minus 15 C with wind)
cool down the load. For some times the cold weather hold situation
under control. But… Suddenly SWR became floating. At every key down antenna current became
floating too. Finally at the end of a short contest QSO the SWR
–meter of the IC- 718 showed infinity. It was happened what I
waiting for. Termination Load at the end of my Beverage antenna
was burned out.
I took a break in my contesting. I expected the situation
so I acted on to my plan. It was interesting for me how the Beverage
antenna with burned load (anyway, it is already not a Beverage
antenna it is low profile wire antenna) would be worked at the
other bands. I made measurement of the antenna with help of SWR-
Meter of the IC- 718 and with help of MFJ- 259B. Table 1 shows SWR of the Beverage antenna with
burned load measured by IC- 718.
Note: I use to a Japan made wall mounted SWR –Meter (Handic brand) constantly turned on
to the antenna cable. As usual I use to the SWR meter to measure
antenna current while transmitting. However seldom I use the SWR-
Meter to measure SWR in my antenna (to prove the IC- 718 internal
SWR- Meter). Sometimes I used FSM function at the SWR- Meter.
Japan made SWR- Meter - HANDIC