Tag Archives: tropospheric

Explanations

My antennas

It is another fifteen months since my last post here. In all I was away from amateur radio for seven and a half months from November 2020 until mid-June 2021.

My interest has always been VHF, so I missed the first half of the 2020 Sporadic E season and did not catch much of the second half as it took me a while to get going. I did work an EA6 on 2 in June. I had some nice tropo QSO into Sweden on 70 cms in July, OZ on 2 and 70 in September and OK1GTH on 2 in November. All stations worked with SSB. That is about it as there has been little decent tropo over the whole period since June 2021.

Being currently not as able as I used to be, although I hope for some more improvement, I have some projects on the backburner. I would really like to put up a couple of antennas for four metres and maybe six metres (70 and 50 MHz) but need to enlist some help as the Sporadic E season is almost here again.

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September 2020 tropo

IC-9700

After a long time with no decent tropo it has been an interesting week with a good opening to Scandinavia and the Baltic. Conditions were first good on 17th September when I worked OZ on 23 cms, but on 2 metres it seemed initially that the good propagation was going over our heads on the East Coast, with the West, Wales and Northern Ireland being favoured into Scandinavia. I cannot complain too much. I did make some good QSOs as the days moved on, the highlights being on 2 metres SM4GGC at 1183 km and on 70 cms SP1MVG who called me when I was just finishing with OZ1BNN. Poland was a new country on 70 cms and obviously a new square.

I run 100 watts on 2 metres and 10 watts on 23 cms with my IC-9700, and 50 watts on 70 cms using my FT991.

Here is a summary of the most pleasing contacts, all SSB:

2 metres
17/09/20OZ1BEFJO46
18/09/20DK4EEJO41
DL2RZJO54
19/09/20GM4YXIIO87
GM0OQVIO85
20/09/20DG8LGJO44
DL0CXJO43
DL5BBFJO42
SM4GGCJO691183 km
OZ1BNNJO55
OZ6OLJO65
21/09/20SM7GVFJO77
OZ8ZYJO54
GM4JOJIO97
SM6VTZJO58
70 cms
17/09/20SM6VTZJO58
OZ9FWJO65
20/09/20DJ8MSJO54
DL4EECJO33
MM0CEZIO75
OZ1BNNJO55
SP1MVGJO74987 kmNew country on 70 cms
21/09/20SM7GVFJO77
OZ4VWJO45
23 cms
15/09/20OZ1FFJO45
20/09/20DB8WKJO33

Tropo opening 28th to 30th December 2019

20200104_205110We had an interesting tropo event starting on 28th December and ending at my QTH on 30th. All QSOs were SSB. Conditions were very good to the East and North East, and good to the South and South West, but surprisingly from my QTH there was less propagation to the South East, so no HB9s etc. On 2 metres I used my newish IC9700 with 100 watts to my 7 element and on 70 cms my FT991 with 50 watts to a 13 element.

On 2 metres amongst others I worked on the 28th:

F5ICN    JN03    933km

F3EZJ     JN05

EA1MX  IN73   974km

F4CQA   JN17

F0FHU    JN06

On 29th:

SM7EQL   JO65  940km

OZ7UV      JO65

SM7NGR   JO65

DL2RZ        JO54

GU0UVH    IN89 not so far but I had never worked Alderney!

On 30th:

EB1AH    IN73 and he was running 5 watts to a 3-element antenna

On 70 cms amongst others and still all on SSB on 29th:

GJ8CEY   IN89  not so far but a new country and square on 70 coms

GU6EFB  IN89  new country 😊

DL1YAW  JO41

DJ8MS    JO54   793km

OZ9FW   JO65   883km

OZ1HDF   JO55   852km

OZ9GE      JO66   905km

OZ8ZS     JO55   851km

EI19RE    IO51  New country and square on 70 cms

Conditions were so good for a period that the OZs called me on the back of the beam as I was looking South West.

I know that others worked more DX than did I, but I enjoyed the event and am happy with the results.

Late June tropo

IMG_1245Having missed out on all the Sporadic E on 2 metres save IK8EVE (JN71) on 1st June it was good to be treated to some decent tropo. Starting on the evening of 27th June, on 2 metres I worked with my 25 watts all on SSB:

DF2WF   JO30

DM8MM JO31

DF0WD  JO42

DJ6AG  JO51

DK5DQ  JO31

On 28th June in the evening on 2 metres:

SK7MW  JO65

SM7XWX  JO65

OZ6TY  JO55

OZ1BEF JO46

DL3TW  JO44

DL2RZ  JO54

On 29th June in the morning earlyish

DK3EE   JO41

SM7YES  JO67 and incredibly strong signal.

On 29th June, SK6VHF (JO57) on 144.404 MHz was audible until about midday but faded as pressure fell so that when we were down to 1012 millibars at 1700 I knew the event was over.

I did try my luck on 70 cms with my one watt, and worked on 28th June:

SM6CEN  JO67

OZ9FW   JO65

So, a little bit of fun finding and working a little way away. I seem to have some advantage with sea paths, being near to the Thames and Crouch estuaries, and reaching mainly stations near the coast in Scandinavia.

More October tropo

This was a week or so back, so I am reporting somewhat belatedly.

Starting on 24th October There was some enhanced propagation. In the afternoon on 2 metres I worked EI9KP in IO54, in Sligo, for a rare square. In the evening I worked:

F6DBI    IN88

F6FGQ  IN78

F9OE      IN78

And on 25th:

GJ7LJJ/P IN89

F6GPT   IN94

F4EZJ     JN05

And I heard EA2TZ who did not stay on frequency to work calling G stations.

I also worked on 24th with one watt on 70 centimetres F6FGQ immediately before the contact on 2 metres.

A limited opening but a nice one.