DMR and network radios

Many people have no DMR radios, but have Android phones. This was the case with me. I had a network radio that was hardly used.  I found an app called Droidstar that enabled me to access the DMR network and thus worldwide contacts with a handheld. It has not been used often, but at least I can use DMR if I want to. I have found it more interesting just to listen.

See https://sites.google.com/view/g3xbm4/home/other-amateur-radio/network-radio . 

Sunspots - Monday December 5th 2022

Solar flux is 144 and the SSN 93. A=16 and K=2.

Birthday - NOT amateur radio

 

About 10 days ago was my wife's birthday.  These were some of her cards.

17m FT8 RX (Sunday)

Without changing from the 8m dipole, I have swapped to 17m FT8 RX. Within a few minutes 39 stations were spotted as shown on the map.

UPDATE 2000z:  So far on 17m FT8 RX this afternoon 159 stations spotted. QRT very soon.

10m QRP WSPR TX (Sunday)

For the last several hours, I have been on 10m WSPR TX with my 500mW W5OLF 10m WSPR beacon. So far today, 7 stations have spotted me.

These follows a distinct pattern.  Early, I usually get spotted in the Canaries with the USA and Canada in the early afternoon. Just occasionally there are others. The impression i get is that many have moved over to FT8 instead of WSPR.

UPDATE 1705z:  11 unique stations have spotted me today,

8m FT8 QRP (Sunday)

 Although I have been on 8m most of the morning, no spots although in the last few days I have been spotted by EI9KP (649km) and G4FFC (47km).

UPDATE 1707z:   No spots all day.

Card tricks - NOT amateur radio

This was one of our grandchildren doing card tricks last night. She baffled me and would not tell me how she did it. 

Sunspots - Sunday December 4th 2022

 Solar flux is 134 and SSN 68.  A=10 and K=2.

220 MHz band

As far as I know, we have never had the 220 MHz amateur band this side of the Atlantic. Maybe we did before WW2. Perhaps someone can tell me.

Every week I get Amateur Radio Weekly in my email and this mentioned that this allocation is little used outside of the big US cities. If other VHF allocations are anything to go by, I am not surprised. 2m and 70cm are generally quiet here.

At one time handhelds were made for this band. I guess there are few nowadays if not many get sold.

I can imagine this could be an interesting band if activity was high. Frequently on 70cm tropo is better than 2m. At a time when activity was higher, it was not uncommon to have frequent, very localised tropo openings. With 4W and an old TV antenna, it was possible to work FM DX on 70cms quite often.

See https://www.onallbands.com/222-mhz-is-anybody-there/ .

See https://hamweekly.com/ .

MF transverter

This photo from 2012 was found earlier. I cannot remember if this was the original 500 kHz transverter or the one for I did for 472 kHz. The 472 kHz one has been used most autumns and winters with my earth-electrode "antenna" in the ground on WSPR. Even though the ERP is very low, it is regularly gets spotted in Norway. The transverter produces 10W, but the ERP is about 10mW.