New radio?

About a year ago I bought a Yaesu FT991A.  At the right price I may, at a later date, trade this in for an ICOM IC-705. I am a QRP man and only use the FT991A at low power.

With simple antennas, the FT991A has worked some impressive DX on the VHF bands especially.

Often with new rigs there are teething troubles that are fixed with firmware or hardware improvements. I am in no hurry. Certainly my advice is avoid early models if buying new.

I like the features and coverage of the IC-705 and the fact it has no fan and can run at 5W off the attached battery which can be charged via the USB lead. It has D-STAR, Bluetooth, Wi-Fi and GPS. I wish it had 4m and an internal auto-ATU.

See https://sites.google.com/site/g3xbmqrp3/new

High sensitivity crystal set

The ARRL website still has a public link to an old QST article on using a MOSFET as a high sensitivity crystal set. I have not duplicated this design, but should try it on HF. There is lots about crystal sets on my website.

See http://www.arrl.org/files/file/Technology/tis/info/pdf/culter.pdf
See https://sites.google.com/site/g3xbmqrp3/hf/crystalset