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Archive for May, 2015

QRP365 Update 22

It’s Sunday May 31st 2015 and I have now completed week 22 of my QRP 365 Challenge.  For those who are new to this, this means that for the whole of the year, 2015, I shall use no more than 5W and just CW or Datamodes, no phone at all.  At least one QSO a day – hence 365.

So how did I do this week?

25/05/15: IU2CAB, 5W, PSK31 on 14.07015MHz, a distance of 657mi (1059km) / 131.4mi (211.8km) per Watt.

26/05/15: OH3T, 5W, JT65 on 14.076MHz, a distance of 1170mi (1887km) / 234mi (377.4km) per Watt.

27/05/15: TF5B, 5W, PSK31 on 14.07015MHz, a distance of 1068mi (1723km) / 213.6mi (344.6km) per Watt.

28/05/15: DL65DARC, 3W, CW on 7.023MHz, a distance of 469mi (757km) / 153.3mi (252.3km) per Watt.

29/05/15: HA3PT, 5W, PSK31 on 14.07015MHz, a distance of 962mi (1552km) / 192.4mi (310.4km) per Watt.

30/05/15: IQ5AE, 5W, PSK31 on 14.07015MHz, a distance of 768mi (1239km) / 153.6mi (247.8km) per Watt.

30/05/15: HA7RM, 5W, PSK31 on 14.07015MHz, a distance of 949mi 91530km) / 189.8mi (306km) per Watt.

31/05/15: ES3BR, 5W, PSK31 on 14.07015MHz, a distance of 1056mi (1704km) / 211.2mi (340.8km) per Watt.

As can be seen the best DX this week was TF5B with a cracking 1068miles (1723km) worked, plus a new DXCC worked on QRP this year  – that’s a total of 40 now..  However, QSO of the week has to be given to the one with DL65DARC as I managed to break a CW pileup to get him on 40m.  Whereas this was not the greatest distance worked either overall or per Watt, it was worked using an HB 49er that I recently completed giving a massive 3W when powered with a 12V source (or 200mW from a 9V PP3 battery).

CQ is a lovely mode to use. People may consider it difficult and out of date or unnecessary but it is all part of the history of what is a fascinating hobby and means of communication.  It is also a much cleaner signal than many, taking up just a few hundred hertz as opposed to kilohertz and is much less likely to cause TVI or EMC.  Also, following the stroke I had just over a year and a half ago I have a tendency to stammer when talking which sometimes makes it difficult for others to understand me during a QSO.  At least with CW I do not stammer (although sometimes my mind goes a little fuzzy and I forget what I am sending).   Give it a try, you may be surprised at just how easy it is.  It is also much easier to build a CW transmitter and receiver than it is to build one for phone so if you fancy a go at homebrewing some kit, this is probably the first thing to look at – a crystal oscillator, a buffer, an amp and a key to turn it on or off (not forgetting harmonic filters after the final stage so as not to annoy other users).

This week’s picture is the 49er TRX that I used to contact DL65DARC and the Sandford Wattmeter from Kanga which I tested the output on.

CGQTB0cWwAAJWYV safe_image

Until next update..

Next update will be on Sunday 7th June 2015.  It may be a tad later though as I shall be at the Spalding and District ARS Rally until early afternoon.

QRP365 Update 21

It’s Sunday May 24th 2015 and I have now completed week 21 of my QRP 365 Challenge.  For those who are new to this, this means that for the whole of the year, 2015, I shall use no more than 5W and just CW or Datamodes, no phone at all.  At least one QSO a day – hence 365.

So how did I do this week?

18/05/15: HA7XC, 5W, PSK31 on 14.07015MHz, a distance of 998mi (1610km) / 199.6mi (322km) per Watt.

19/05/15: OM3DM, 5W, PSK31 on 14.07015MHz, a distance of 919mi (1482km) / 183.8mi (296.4km) per Watt.

20/05/15: IQ0JC, 5W, PSK31 on 14.07015MHz, a distance of 905mi (1460km) / 181mi (292km) per Watt.

21/05/15: IO2EXPO, 5W, PSK63 on 14.07015MHz, a distance of 953mi (1537km) / 190.6mi (307.4km) per Watt.

21/05/15: G3SES, 3W, CW on 7.032MHz, a distance of 119mi (191km) / 39.66mi (63.66km) per Watt.

22/05/15: OK2JFS, 5W, JT65 on 14.076MHz, a distance of 722mi (1164km) / 144.4mi (232.8km) per Watt.

22/05/15: UT3MS, 5W, JT65 on 14.076MHz, a distance of 1454mi (2345km) / 290.8mi (469km) per Watt.

23/05/15: OE5EGN, 5W, PSK63 on 14.07015MHz, a distance of 718mi (1158km) / 143.6mi (231.6km) per Watt.

23/05/15: US5CCO, 5W, PSK31 on 21.07015MHz, a distance of 1420mi (2291km) / 284mi (458.2km) per Watt.

24/05/15: UR5QU, 5W, PSK33 on 21.07015MHz, a distance of 1343mi (2150km) / 268.6mi (430km) per Watt.

24/05/15: US0HZ, 5W, PSK63 on 21.07015MHz, a distance of 1519mi (2450km) / 318.2mi (490km) per Watt.

As can be seen the best DX this week was US0HZ with a cracking 1519miles (2450km) worked.  However, QSO of the week has to be given to the one with G3SES.  Whereas this was not the greatest distance worked either overall or per Watt, it was worked using an OQ40 Transceiver that I purchased in kit form from Kanga Products UK.  It is capable of running at 7W out but I have reduced it to only 3W to remain within the limits of my QRP challenge.

CQ is a lovely mode to use. People may consider it difficult and out of date or unnecessary but it is all part of the history of what is a fascinating hobby and means of communication.  It is also a much cleaner signal than many, taking up just a few hundred hertz as opposed to kilohertz and is much less likely to cause TVI or EMC.  Also, following the stroke I had just over a year and a half ago I have a tendency to stammer when talking which sometimes makes it difficult for others to understand me during a QSO.  At least with CW I do not stammer (although sometimes my mind goes a little fuzzy and I forget what I am sending).   Give it a try, you may be surprised at just how easy it is.  It is also much easier to build a CW transmitter and receiver than it is to build one for phone so if you fancy a go at homebrewing some kit, this is probably the first thing to look at – a crystal oscillator, a buffer, an amp and a key to turn it on or off (not forgetting harmonic filters after the final stage so as not to annoy other users).

This week’s picture is the OQ40 TRX that I used for the QSO with G3SES.  This unit is available from Dennis at Kanga Products UK (www.kanga-products.co.uk).  The only change I have made to the original is the larger tuning dial.

DSCF0021 The OQ40TRX

Until next update..

Next update will be on Sunday 31st May 2015.

QRP365 Update 20

It’s Sunday May 17th 2015 and I have now completed week 20 of my QRP 365 Challenge.  For those who are new to this, this means that for the whole of the year, 2015, I shall use no more than 5W and just CW or Datamodes, no phone at all.  At least one QSO a day – hence 365.

So how did I do this week?

11/05/15: RN2F, 5W, PSK63 on 14.07015MHz, a distance of 907mi (1463km) / 181.4mi (292.6km) per Watt.

12/05/15: LY2FN, 5W, JT65 on 14.076MHz, a distance of 1006mi (1622km) / 201.2mi (324.4km) per Watt.

12/05/15: F4FZR, 5W, JT65 on 14.076MHz, a distance of 557mi (898km) / 111.4mi (179.6km) per Watt.

13/05/15: DM2DMI, 5W, JT65 on 14.076MHz, a distance of 589mi (943km) / 117.8mi ( 188.6km) per Watt.

14/05/15: DF4DX, 5W, JT65 on 14.076MHz, a distance of 469mi (757km) / 93.8mi ( 151.4km) per Watt.

14/05/15: OH3T, 5W, JT65 on 14.076MHz, a distance of 1170mi (1887km) / 234mi (377.4km) per Watt.

15/05/15: UA4HHA, 5W, PSK63 on  21.07015MHz, a distance of 2055mi (3314km) / 411mi (662.8km) per Watt.

16/05/15: IC8DAK, 5W, PSK63 on 14.07015MHz, a distance of 1081mi (1744km) / 216.2mi (348.8km) per Watt.

16/05/15: OK1ZCF, 5W, PSK63 on 14.07015MHz, a distance of 764mi (1232km) / 152.8mi (246.4km) per Watt.

16/05/15: LY2OT, 5W, PSK63 on 14.07015MHz, a distance of 999mi (1612km) / 199.8mi (322.4km) per Watt.

17/05/15: OZ150ITU/17, 5W, PSK31 on 14.07015MHz, a distance of 975mi (1572km) / 195mi (314.4km) per Watt.

As can be seen the best DX this week was UA4HHA with a cracking 2055miles (3314km) worked.  OZ150ITU/17 was a special event station celebrating 150 years membership of the ITU.

I am still continuing to call CQ using CW for the first 1/2 hour of my daily session and still not getting replies most of the time .  If we do wish to keep this mode alive it really does need using.  People may consider it difficult and out of date or unnecessary but it is all part of the history of what is a fascinating hobby and means of communication.  It is also a much cleaner signal than many, taking up just a few hundred hertz as opposed to kilohertz and is much less likely to cause TVI or EMC.  Give it a try, you may be surprised at just how easy it is.  It is also much easier to build a CW transmitter and receiver than it is to build one for phone so if you fancy a go at homebrewing some kit, this is probably the first thing to look at – a crystal oscillator, a buffer, an amp and a key to turn it on or off (not forgetting harmonic filters after the final stage so as not to annoy other users).

This week’s pictures are the OQ40 TRX both during construction and completed.  This unit is available from Dennis at Kanga Products UK (www.kanga-products.co.uk).

RX and Decode

Until next update..

Next update will be on Sunday 24th May 2015.

Categories: Uncategorized

QRP365 Update 19

It’s Sunday May 10th 2015 and I have now completed week 19 of my QRP 365 Challenge.  For those who are new to this, this means that for the whole of the year, 2015, I shall use no more than 5W and just CW or Datamodes, no phone at all.  At least one QSO a day – hence 365.

So how did I do this week?

04/05/15: RP7OM, 5W, PSK63 on 14.07015MHz, a distance of 1542mi (2468km) / 308.4mi (493.6km) per Watt.

04/05/15: YO4RXX, 5W, PSK31 on 14.07015MHz, a distance of 1379mi (2225km) / 275.8mi (445km) per Watt.

05/05/15: SP5FCZ, 5W, JT65 on 14.076MHz, a distance of 843mi (1360km) / 168.6mi (272km) per Watt.

06/05/15: RP70OD, 5W, PSk63 on 14.07015MHz, a distance of 1851mi (2985km) / 370.2mi (597km) per Watt.

07/05/15: SP9UXB, 5W, JT65 on 14.076MHz, a distance of 850mi (1371km) / 170mi (274.2km) per Watt.

07/05/15: SP6ECQ, 5W, JT65 on 14.076MHz, a distance of 695mi (1121km) / 139mi (224.2km) per Watt.

07/05/15: HA3PT, 5W, JT65 on 14.076MHz, a distance of 962mi (1552km) / 192.4mi (310.4km) per Watt.

07/05/15: DL1RYD, 5W, JT65 on 14.076MHz, a distance of 579mi (934km) / 115.8mi (186.8km) per Watt.

08/05/15: PD9FDG, 5W, JT65 on 14.076MHz, a distance of 250mi (404km) / 50mi (80.8km) per Watt.

08/05/15: PA7ZZ, 5W, JT65 on 14.076MHz, a distance of 250mi (404km) / 50mi (80.8km) per Watt.

09/05/15: DG0CG, 5W, PSK31  on 14.07015MHz, a distance of 607mi (979km) / 121.4mi (195.8km) per Watt.

09/05/15: PH6MILL, 5W, CW on 7.015MHz, a distance of 250mi (404km) / 50mi (80.8km) per Watt.

10/05/15: IW8CGX, 5W, PSK63 on 14.07015MHz, a distance of 1112mi (1794km) / 222.4mi (358.8km) per Watt.

10/05/15: R1CBP, 5W, JT65 on 14.076MHz, a distance of 1851mi (2985km) / 370.2mi (597km) per Watt.

As can be seen the best DX this week was RP70OD, a SE station for the 70th anniversary of VR Day and R1CBP  with a cracking 1851miles (2985km) worked.  PH6MILL was also a special event station for the Mills On The Air Weekend operating from Rockanje Mill

I am still continuing to call CQ using CW for the first 1/2 hour of my daily session and still not getting replies most of the time .  If we do wish to keep this mode alive it really does need using.  People may consider it difficult and out of date or unnecessary but it is all part of the history of what is a fascinating hobby and means of communication.  It is also a much cleaner signal than many, taking up just a few hundred hertz as opposed to kilohertz and is much less likely to cause TVI or EMC.  Give it a try, you may be surprised at just how easy it is.  It is also much easier to build a CW transmitter and receiver than it is to build one for phone so if you fancy a go at homebrewing some kit, this is probably the first thing to look at – a crystal oscillator, a buffer, an amp and a key to turn it on or off (not forgetting harmonic filters after the final stage so as not to annoy other users).

The 49er that I have been building is now boxed completely.  The pictures below show the total home brew radio and box, amazing what can be done with some scrap double sided PCB.  It does provide excellent RF shielding though.

CEPHd0yWIAAwF6p CEPHd6-WYAAv4Vy

Until next update..

Next update will be on Sunday 17th May 2015.

QRP365 Update 18

It’s Sunday May 3rd 2015 and I have now completed week 18 of my QRP 365 Challenge.  For those who are new to this, this means that for the whole of the year, 2015, I shall use no more than 5W and just CW or Datamodes, no phone at all.  At least one QSO a day – hence 365.

So how did I do this week?

27/04/15: 3Z7OVD, 5W, PSK63 on 14.07015MHz, a distance of 843mi (1360km) / 168.6mi (272km) per Watt.

27/04/15: OH6GAZ, 5W, PSK125 on 21.07015MHz, a distance of 1170mi (1887km) / 234 (377.4km) per Watt.

28/04/15: IC8DAK, 5W, PSK125 on 14.07015MHz, a distance of 1081mi (1744km) / 216.2mi (348.8km) per Watt.

29/04/15: UX0KR, 5W, PSK31 on 14.07015MHz, a distance of 1343mi (2150km) / 268.6mi (430km) per Watt.

30/04/15: OH3T, 5W, JT65 on 14.076MHz, a distance of 1170mi (1887km) / 234mi (377.4km) per Watt.

30/04/15: 9A2RI, 5W, JT65 on 14.076MHz, a distance of 911mi (1470km) / 182.2mi (294km) per Watt.

01/05/15: IT9PQJ, 5W, JT65 on 14.076MHz, a distance of 953mi (1537km) 190.6mi (307.4km) per Watt.

02/05/15: IS0FFD, 5W, PSK31 on 14.07015MHz, a distance of  942mi (1520km) / 188.4mi (304km) per Watt.

02/05/15: UR3LC, 5W, JT65 on 14.076MHz, a distance of 1599mi (2579km) / 319.8mi (515.8km) per Watt.

02/05/15: HA5HU, 5W, JT65 on 14.076MHz, a distance of 952mi (1535km) / 190.4mi (307km) per Watt.

03/05/15: IZ0MIO, 5W, JT65 on 14.076MHz, a distance of 980mi (1569km) / 196mi (313.8km) per Watt.

03/05/15: IW6CZF, 5W, JT65 on 14.076MHz, a distance of 917mi (1479km) / 183.4mi (395.8km) per Watt.

03/05/15: YU1OO, 5W, JT65 on 14.076MHz, a distance of 1169mi (1886km) / 233.8mi (377.2km)  per Watt.

As can be seen the best DX this week was UR3LC with a cracking 1599miles (2579km) worked.

I am still continuing to call CQ using CW for the first 1/2 hour of my daily session and still not getting replies most of the time .  If we do wish to keep this mode alive it really does need using.  People may consider it difficult and out of date or unnecessary but it is all part of the history of what is a fascinating hobby and means of communication.  It is also a much cleaner signal than many, taking up just a few hundred hertz as opposed to kilohertz and is much less likely to cause TVI or EMC.  Give it a try, you may be surprised at just how easy it is.  It is also much easier to build a CW transmitter and receiver than it is to build one for phone so if you fancy a go at homebrewing some kit, this is probably the first thing to look at – a crystal oscillator, a buffer, an amp and a key to turn it on or off (not forgetting harmonic filters after the final stage so as not to annoy other users).

Talking of home brew kits, I have completed the kit that arrived from China last week.  It came with no instructions and a parts list written in Chinese (probably Mandarin).  The complete unit can be seen below.  I now just have to construct a case for it – I am using double sided copper clad board that will solder together and form a nice enclosure to prevent interference to other items (Faraday cage).

49er completed.

Until next update..

Next update will be on Sunday 3rd May 2015.