Recently, also to test a new 30 Ah LiFePo4 battery (but that’s another story), I dusted off the aforementioned radio that is normally kept in the backpack for portable activities, ready to use (and I emphasize that it is ready, not that it is used).
After turning it on, I connected the trusty Bird wattmeter with the dummy load and tested the various output powers on all bands.
The powers were all within specifications, but I noticed that on the HF frequencies from 14MHz and above, the bars indicating (more or less…) the power emitted by the radio only showed a couple of notches even though the radio was actually set to 100W.
Continue reading “Yaesu FT-857D: The curious case of… the PWR OUT bars”
I publish this article now even though I wrote it in december 2018.
Here we are, again.. murphy’s law strikes back!
Some time ago I got, together with some fellow ham radio friends, this Icom rig.
This is the first time I buy something “non Yaesu” because I was attracted by a multitude of positive reviews (most of all coming from our uncle Sam colleagues); furthermore for the appetite for hybrid SDR technology and because of the hardware maturity of the model.
Continue reading “Icom IC-7300 repair: no transmission”
Sometimes I was thinking about signal reports I got during various QSOs (ssb). I would like to dig into this topic since I now have an RF signal generator and I am very into measurement and lab experiments on antennas and rigs (I do not have any perfection claim, but it’s just to confirm my builds with numbers) Continue reading “Thoughts regarding the S-Meter”
In this article I change the (in)famous 3 faulty Toko filters with Murata equivalent, due to the well known desensitization problem present in rigs such as Yaesu 857,897, kenwood ts2000, etc…
Regarding this 857d I fixed for a friend, it seems the problem is related to units produced some years ago, but not the newest hardware releases. Continue reading “Yaesu 857d ceramic filters repair”