Showing posts with label 70cm. Show all posts
Showing posts with label 70cm. Show all posts

21 Apr 2024

70cm UKAC activity contest results

You would not exactly say I am a contest nerd. One thing is certain: guess who will never win! If I come half way up the table I'd be very pleased!

I like to submit an entry into the activity contest even though I stay on very little time, use 10W SSB and a 2m big-wheel omni antenna. In the low power section I am 43rd out of 70, which is not bad.


See https://www.rsgbcc.org/cgi-bin/vhfresults.pl?Contest=432MHz%20UKAC&year=2024 .

14 Apr 2024

70cm activity contest last Tuesday

My entry (never a winning score with just 2 QSOs, 10W, short period on air and a 2m omni antenna!) was submitted this morning. 

It is my view that this 70cm UKAC is on the wane with fewer people active. The 70cm FT8 activity contest on the other hand is "humming". It looks like many people prefer FT8 to SSB these days. FT8 works with far weaker signals, but like so much these days, it has less human interaction. 

We seem to becoming a society with far less human contact sadly.

Am I alone in thinking impersonal AI call centres are a pain?  "Say in your own words what you are calling about". "You want to talk about xxx. Is that correct?".  Say "yes" or "no". Actually I would rather speak with a human being!

10 Apr 2024

70cm FT8 UKAC activity contest

Stations spotting my 2.5W FT8
on 70cm earlier this evening

It never fails to amaze me how far 2.5W FT8 to the 2m big-wheel omni goes on 70cm.  On RX, stations as far as S.Eire, the Netherlands and Germany are always copied on 70cm FT8 irrespective of conditions.

16 Mar 2024

70cm

Years ago, there was plenty of activity on 70cm FM simplex. I had one of the first synthesised amateur rigs in the country. It was an FM321 based on the Australian UHF CB rig, the FM320. With an indoor UHF TV yagi and 4W much DX was worked on FM. It was very good.

These days, there is little activity apart from in contests. The map shows the contacts made with 10W SSB and my 2m omni antenna in a recent activity contest.

Openings on 70cm were localised, and often tropo openings were more frequent than on 2m. These days, with FT8, amazing distances can be covered. It is a great pity 70cm is so under-used.

13 Mar 2024

70cm FT8 activity contest

70cm FT8 RX
 At the moment I am 70cm FT8 RX only, although I shall probably try to work some locals later with 2.5W and the 2m big-wheel omni antenna.

UPDATE  2020z:   Plenty of stations active. I think these are normal conditions on 70cm FT8. Imagine if I had a beam!

70cm QRP FT8 TX
UPDATE 2106z:
I am surprised where my 2.5W to the omni reaches on 70cm FT8.

70cm activity contest

Yesterday was the 70cm leg of the RSGB organised activity contest (UKAC). I was on for only about 45 minutes with my 10W and 2m omni big-wheel antenna. 5 stations were worked.

14 Feb 2024

70cm FT8 activity contest (Wednesday)


This evening is the 70cm FT8 activity contest. The map shows the stations spotted by 2036z. On TX (2.5W), I worked one local and was called by another station but we were unable to complete. This is with a 2m big-wheel omni antenna and no beams.

As far as I know, conditions are normal. It amazes me how well 70cm FT8 works.

70cm SSB/CW activity contest yesterday

Yesterday was the UKAC SSB/CW activity contest organised by the RSGB. I did not stop on for long - even less than usual. 2 stations were worked, but I soon gave up. The FT8 contest seems much more popular.

22 Jan 2024

70cm FT8 (Monday)

As 8m (2.5W FT8) and 10m (500uW WSPR) resulted in no spots today, I am trying my luck with 2.5W 70cm FT8 to the vertical omni V2000 antenna. After about 10 minutes, no spots.

Outside of contests, I have no idea of activity levels. I might be better the 2m horizontal omni antenna.I shall swap antennas at 1700z.

18 Jan 2024

70cm - times they are a changing

When I was first licenced here in the UK there was a class A licence and a class B licence.  Class B licencees were only allowed on 432MHz and above and did not need a morse test. My first call was without CW and 432MHz and above. Class B operators could operate a Class A station under supervision. I remember doing this at the QTH of the late G4PJ.

My first activity on 70cm was with the transverter shown. In those days nearly everyone was crystal controlled and we tuned the whole band listening for replies. Out /P with 100mW one could just about guarantee a QSO. Most people were on AM back then.

These days there is far less activity on 70cm sadly. Those that are active come on mainly in contests usually on FM or SSB. This is pity as often 70cm tropo can be better than 2m. I remember years later having loads of fun working FM DX on 70cm simplex with 4W from an FM321. Often lifts on 70cm were more localised.

Times they are a changing...

14 Jan 2024

70cm activity session last Tuesday


Every month I take part in the 70cm activity contest (UKAC) using 10W pep and my 2m big-wheel omni antenna. It is usual for me to stop on not very long with my poor voice. 3 stations were worked (see map).

10 Jan 2024

70cm FT8 activity

At 2000z the FT8 activity contest takes place organised by the RSGB. I think there is an activity contest in Europe earlier. My 2.5W to the 2m omni antenna has already been spotted near Paris. On RX, stations in Germany have been spotted.

UPDATE 2100z: 18 spots of me and 4 QSOs before I stopped on 70cm QRP FT8

13 Dec 2023

70cm activity contest - December

Last night, I went on the 70cm activity contest organised by the RSGB. As usual, I ran 10W pep and my 2m big-wheel omni antenna. A couple of contacts were had in the short time I was on.

It is my view that SSB activity in this contest is declining.  I usually work a few stations but there seemed fewer people on.

18 Nov 2023

70cm QRP FT8 (Saturday)

At about 1610z I QSYed to 70cm FT8 with my 2.5W and the 2m big-wheel omni antenna. No spots.

UPDATE 1914z:  No spots, so have QSYed to 630m QRP WSPR.

16 Oct 2023

70cm UKAC October 10th

 Usually I send my (pathetic) entry in the next day, but I forgot. I use 10W to my 144MHz omni antenna and only stay on for a short while because of my poor voice. 4 contacts were had.

9 Aug 2023

70cm FT8 activity contest (Wednesday)

Stations spotted on 70cm FT8  tonight

Tonight was the UKAC activity contest on 70cm FT8. I had one QSO, but spent most of the time on RX. 30 stations were spotted with the 2m big-wheel omni antenna.

70cm activity contest

Last night, I went on the 70cm activity contest (UKAC) organised by the RSGB. I was in for about 40 minutes in 2 sessions with 10W and the 2m big-wheel omni. 4 QSOs were made (see map).

Usually the 70cm FT8 activity session is this evening.

8 Aug 2023

432 MHz activity contest this evening

Starting at 1900z, this evening is the RSGB organised 70cm activity contest. I usually go on for a short time with 10W and my 2m big-wheel omni antenna. Sometimes I work over 100km whereas other times I work nobody.

11 May 2023

Last evening on 70cm FT8

As far as I know, conditions last night were normal on 70cm. 

Despite this, 36 stations were copied in the 70cm FT8 activity contest (see map), as far as Germany. And all this was on a 2m omni antenna on RX!  It seems that some sort of troposcatter is possible using FT8. 

Imagine what would have been copied if I had had a typical 70cm beam. If this works at 70cm, what about 23cm or even 13cm? On these bands ERPs of kilowatts are possible with average beams.

No, FT8, has transformed VHF/UHF, making DX possible at any time with very modest stations. If activity was higher people would be making DX QSOs at any time, irrespective of conditions.


10 May 2023

70cm FT8 activity contest


The RSGB activity contest (UKAC) starts at 1900z, but I think the European contest starts earlier.

The map shows the activity on 70cm FT8 well before the UK contest starts! 

My antenna is just a 2m big-wheel omni too!