Posts Tagged ‘jt9-1’
This is a photo of the kit currently used. The top FT817ND is used mainly for 2m and 70cms (local FM net, SSB and CW, beacon hunting) and the lower FT817 for WSPR, JT65 and JT9-1 mainly on 6m and 10m. The lower rig is set at 2.5W, but the cable run to the V2000 vertical is lossy on 6m. I use a SignaLink USB audio interface to the PC. This works well. For all digital modes I use the FT817 on DIG setting via the rear connector. Sometimes I use the Z817 ATU, which I find very good. With this, I can get onto 5MHz and some other bands.
Best DX (on WSPR) is Australia at 1W out on 40, 20 and 10m and Israel on 6m WSPR (1W ERP).
Not shown (on shelf above) is the 472kHz homebrew transverter, the 15m MFJ Cub and the Mizuho 200mW 2m SSB rig. Also out of sight are a 136kHz beacon, the 2m Fredbox, the 6m Sixbox, the VLF 8-9kHz beacon, and optical rigs. I am waiting for better health to be able to use these again. Currently my operating is all from home and mainly modes not requiring me to talk, although I have ventured onto our Monday night FM net and the odd 2m and 70cm contest.
One of the drawbacks of WSPR (currently) is you tend to get spotted, or spot, the same stations over and over again. I am even seeing the same stations being spotted on 10m and on 6m.
It would be very nice if there were a lot more active stations, so spots came from a variety of stations. I am even seeing this on JT65 and JT9-1.
Perhaps people think these “new fangled” digital modes are hard and so only a limited number of people (currently) use them. Let me say, if even I can use these modes then anyone can! All these modes are great with low power and have really opened my eyes as to how far very low powered signal can be detected.
|10m unique WSPR spots this afternoon (duplicates not shown)
When we get back from shopping I shall return to JT65-HF and JT9-1 modes hoping to work more stations. Yesterday, staying on 20m, I worked 4 Europeans running 2.5 or 5W. JT65-HF is very intuitive and works well. Althought I have had JT9-1 QSOs on 10m in the past, I suspect the rig stability is “challenging” and JT65-HF gives me a better chance. JT65-HF is some 4dB worse than WSPR but the TX period is only 48 secs (1 minute TX period but actual TX is less) so may be better with QSB? JT9-1 is a narrower bandwidth mode than JT65-HF and is about 2dB worse than WSPR. Of course, JT65 and JT9 are proper QSO modes.
Sunspot count today is 76 (decent) and 20-30MHz conditions are supposed to be “normal” so there could well be some F2 (as well as Es) on 10m today. JT65-HF and JT9-1 on 10m are calling I think.
The great advantage of WSPR is you can set the rig running and monitor things in another room. JT65 and JT9 seem to require “hands on” operation, which is fine.