Archive

Archive for July, 2015

QRP365 Update 30

It’s Sunday July 26th 2015 and I have now completed week 30 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?

19/07/15: F4PCM, 5W, JT65 on 14.076MHz, a distance of 675mi (1088km) / 135mi (217.6km) per Watt.

20/07/15: SQ4OLB, 5W, JT65 on 14.076MHz, a distance of 860mi (1387km) / 172mi (277.4km) per Watt.

20/07/15: RW3TY, 5W, JT65 on 14.076MHz, a distance of 1851mi (2985km) / 370.2mi (597km) per Watt.

21/07/15: OH5GJZ, 5W, PSK63 on 14.07015MHz,  a distance of 1163mi (1876km) / 232.6mi (375.2km) per Watt.

22/05/15: DL3RDM, 5W, PSK31 on 14.07015MHz, a distance of 469mi (757km) / 93.8mi (151.4km) per Watt.

23/07/15: LY2BOS, 5W, JT65 on 14.076MHz, a distance of 1006MI (1622km) / 201.2mi (324.4km) per Watt.

23/07/15: OK1UDC, 5W, JT65 on 14.076MHz, a distance of 722mi (1164km) / 144.4mi (232.8km) per Watt.

23/07/15: YO2LAU, 5W, JT65 on 14.076MHz, a distance of 1229mi (1982km) / 245.8mi (396.4km) per Watt.

24/07/15: DM4QX, 5W, PSK31 on 14.07015MHz, a distance of 565mi (911km) / 113mi (182.2km) per Watt.

25/07/15: IK2ZLJ, 5W, JT65 on 14.076MHz, a distance of 953mi (1537km) / 190.6mi (307.4km) per Watt.

26/07/15: OK2PHI, 5W, JT65 on 14.076MHz, a distance of 722mi (1164km) / 144.4mi (232.8km) per Watt.

As can be seen the best DX this week was RW3TY with a cracking 1851miles (2985km) worked.

Following on from last week’s report of strange effects on some bands I lowered the mast and checked the antennas and coax.  It seems that our local magpies had taken a fancy to the PL259 connection and the self amalgamating tape around it.  The tape was shredded and the coax had been all but pecked through leaving a very poor intermittent connection.  Therefore, I removed both HF antennas – the HW-20HP and the DBD-4080 – and replaced them with a single HW-40HP.  This gave me all bands from 40m upwards (even tuning nicely on 30m albeit the band was flat when I tried it).  I also noted that it tuned on both 80m and the top end of 160m although on these bands it would be rather inefficient due to the short length (66ft, one half wavelength at 40m).

Again, finding time to operate the radio is proving to be more of a challenge at the moment as our son is on his 6 week summer holiday.  Unfortunately his interests don’t involve radio so days out need to be arranged. The challenge is set for 365 days but amateur radio is a hobby and family and other commitments have to take precedence sometimes.  I am hoping to be active from IO92RX sometime during the month of August as well so listen out for me there.

Until next update..

Next update will be on Sunday 2nd August 2015.

Advertisements

QRP365 Update 29

It’s Sunday July 19th 2015 and I have now completed week 29 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?

13/07/15: UR4UHE, 5W, JT65 on 14.076MHz, a distance of 1319mi (2127km) / 263.8mi (425.5km) per Watt.

14/07/15: SP6EIY, 5W, PSK63 on 21.07015MHz, a distance of 781mi (1259km) / 156.2mi (251.8km) per Watt.

15/07/15: LA5TFA, 5W, JT65 on 14.076MHz, a distance of 1313mi (2117km) / 262.6mi (423.4km) per Watt.

15/07/15: IK1NTB, 5W, JT65 on 14.076MHz, a distance of 953mi (1537km) / 190.6mi (307.4km) per Watt.

16/07/15: RA3TAT, 5W, JT65 on 14.076MHz, a distance of 1851mi (2985km) / 370.2mi (597km) per Watt.

17/07/15: IW3IEH, 5W, JT65 on 14.07015MHz, a distance of 953mi (1537km) / 190.6mi (307.4km) per Watt.

18/07/15: SP9UNX, 5W, JT65 on 14.076MHz, a distance of 862mi (1390km) / 172.4mi (278km) per Watt.

19/07/15: YP0Y, 5W, PSK31 on 14.07015MHz,  a distance of 1229mi (1982km) / 245.8mi (396.4km) per Watt.

As can be seen the best DX this week was RA3TAT with a cracking 1851miles (2985km) worked.

HF has been in a very bad state for most of the week, making my challenge all the more difficult.  Thankfully, JT65 comes to the rescue where other modes just aren’t working in the poor signal levels.  I have also noted some strange effects on some bands – intermittent RX and higher noise levels.  I am currently eliminating issues – radio fault, antenna fault, water in coax, but none seem to be the cause so wondering if someone in the near locality is using something that is causing the interference.  Will report on this at a later date.

I have had less time to actually get on the radio this week as I have been very busy at work and have also had the usual family commitments like “school parents evening (afternoon) and prize giving functions to attend.  The challenge is set for 365 days but amateur radio is a hobby and family and other commitments have to take precedence sometimes.  I am hoping to be active from IO92RX sometime during the month of August as well so listen out for me there.

Until next update..

Next update will be on Sunday 26th July 2015.

QRP365 Update 28

It’s Sunday July 12th 2015 and I have now completed week 28 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?

06/07/15: SM4DYQ, 5W, JT65 on 14.076MHz, a distance of 904mi (1458km) / 180.8mi (291.6km) per Watt.

07/07/15: IZ0UIM, 5W, PSK31 on 21.07015MHz, a distance of 993mi (1601km) / 198.6mi (320.2km) per Watt.

07/07/15: IZ3CAN, 5W, JT65 on 21.076MHz, a distance of 953mi (1537km) / 190.6mi (307.4km) per Watt.

08/07/15: OZ3AAF, 5W, JT65 on 14.076MHz, a distance of 975mi (1572km) / 195mi (314.4km) per Watt.

09/07/15: SP7SMF, 5W, JT65 on 14.076MHz, a distance of 843mi (1360km) / 168.6mi (272km) per Watt.

09/07/15: RV9DC, 5W, JT65 on 14.076MHz, a distance of 2287mi (3689km) / 457.4mi (737.8km) per Watt.

10/07/15: HA8ZI, 5W, JT65 on 14.076MHz, a distance of 952mi (1535km) / 190.4mi (307km) per Watt.

11/07/15: DL2BVQ, 5W, JT65 on 14.076MHz, a distance of 469mi (757km) / 93.8mi (151.4km) per Watt.

12/07/15: HA8ZI, 5W, JT65 on 14.076MHz, a distance of 952mi (1535km) / 190.4mi (307km) per Watt.

As can be seen the best DX this week was RV9DC with a cracking 2287miles (3689km) worked.

HF has been in a very bad state for most of the week, making my challenge all the more difficult.  Thankfully, JT65 comes to the rescue where other modes just aren’t working in the poor signal levels.  I was quite excited on Tuesday when 15m (21MHz) started to open up again and things looked promising but this was only short lived.  RV9DC at a distance of 3689km (2287mi) was a real surprise on Thursday but I suspect he was using much higher power and better antennas.

Meanwhile I have been busying myself developing something experimental that may be incorporated into my next home brew transceiver project.  See picture below.

 CJstF73W8AAb6w2

7 Pole (9pins) Low Pass LC filter mounted onto experimental PCB for incorporation into HB TRX.

Until next update..

Next update will be on Sunday 19th July 2015.

QRP365 Update 27

It’s Sunday July 5th 2015 and I have now completed week 27 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?

29/06/15: R3PK, 5W, PSK31 on 14.07015MHz, a distance of 1851mi (2985km) / 370.2mi (597km) per Watt.

29/06/15: DP7BVBG, 5W, PSK31 on 14.07015MHz, a distance of 469mi (757km) / 93.8mi (151.4km) per Watt.

29/06/15: IZ8GNR, 5W, PSK31 on 14.07015MHz, a distance of 953mi (1537km) / 190.6mi (307.4km) per Watt.

30/06/15: 9H1KR, 5W, JT65 on 14.076MHz, a distance of 1420mi (2291km) / 284mi (458.2km) per Watt.

30/06/15: UR5MN, 5W, JT65 on 14.076MHz, a distance of 1748mi (2819km) / 349.6mi (563.8km) per Watt.

01/07/15: HA8ZI, 5W, JT65 on 14.076MHz, a distance of 952mi (1535km) / 190.4mi (307km) per Watt.

02/07/15: CT4VB, 5W, PSK31 on 14.07015MHz, a distance of 961mi (1550km) / 192.2mi (310km) per Watt.

03/07/15: YO2LAU, 5W, JT65 on 14.076MHz, a distance of 1229mi (1982km) / 245.8mi (396.4km) per Watt.

04/07/15: HF30ZBX, 5W, PSK31 on 14.07015MHz, a distance of 983mi (1585km) / 196.6mi (317km) per Watt.

05/07/15: RA3AL, 5W, JT65 on 14.076MHz, a distance of 1543mi (2488km) / 308.6mi (497.6km) per Watt.

As can be seen the best DX this week was R3PK with a cracking 1851miles (2985km) worked.

It has been a busy week for me both at work and at home so have not had so much time to get on the radio.  However, I have still managed to squeeze in enough time for a QSO or two every day.  I did have an issue with my data software early in the week – it just stopped decoding  –  and so I downloaded FLDIGI and tried that instead.  After a couple of jittery QSO’s using software that, to be honest, I was not accustomed to, I returned to PZT Log and managed to get it working again.  Perhaps it was because the radio had been disconnected from the PC for use at the GB2EGG special event station last Sunday and on re-connecting there was a port issue, who knows.  All seems to be working fine now.

CI_D6USWoAAsLrp  CJFOFtNWcAAcXqh

CJFOuzEWIAAwAKJ 7 Pole (9pins) and 3 pole Low Pass LC Filter modules that I am using as part of some QRP stuff I am working on. These have a high Q and very sharp cut off at desired frequency. 

Until next update..

Next update will be on Sunday 12th July 2015.