24 Jan 2022
70cm FT8
23 Jan 2022
70cm QRP FT8 (Sunday)
At about 1435z, I turned my 70cm FT8 gear on. After a few minutes calling CQ with 2.5W to the 2m big-wheel, I am now RX only. 5 stations have spotted my QRP (to my amazement!) with the furthermost PA2M (311km). Nobody spotted on RX.
| Stations spotting my 2.5W to the 2m big-wheel antenna on 70cm FT8 TX today |
8m and the ISM band?
The ISM band at 8m is 40.66 - 40.7MHz with an ERP limit of 10mW. Now, I am no expert and you need to convince yourself of the legal position, but I think anyone can operate at these frequencies as long as they accept interference and cause no interference.
These ISM frequencies are international allocations not really intended for radio communications. As I understand it, you can operate at these frequencies without a licence with any mode as long as you meet the ERP limits.
As far as I know, you could send callsigns. 10mW ERP is enough to span Europe in a good Es opening especially with FT8.
As I said, I do not know all the legal conditions and advise you to check carefully first. I know of one UK amateur that intends to TX with 10mW ERP CW as a beacon in the ISM band.
My NoV? Nothing at all received from OFCOM after 2 weeks of chasing apart from those computer generated replies saying they have received my query which is being replied to. But WHEN??? At this rate I shall be dead before I hear!
Oxburgh Hall, Norfolk, UK - NOT amateur radio
70cm FT8 promising?
According to the Hepburn Tropo Forecast, 70cm FT8 could be promising this evening.
Rather than use the V2000 vertical, I may try with the horizontal 2m big-wheel antenna instead. Although the vertical V2000 is quite effective with scatter, the big-wheel is probably better with tropo.
Snailwell - NOT amateur radio
2015 operating
Wymondham, Norfolk - NOT amateur radio
Ultra simple 80m Transceiver
Just how simple can you make a transceiver that actually works? This is on my main website. I hope it gives you some ideas.
See https://sites.google.com/view/g3xbm4/home/hf-mf-and-lf/homebrew/80m-xbm80-2
