Sunday, February 13, 2011

Ham Radio as a tool

Rare dx ON psk31

      Every once in a while there is what hams call Rare dx this is where a rare station is being heard either from a Remote island or remote land. In my case I often times hear a station that I have been hopeing on working for many years and have heard over several different occassions. Some times on dx contests or just pop ups on the bands. Yesterday was no exception to this as I was spending a few minutes before turning to bed.

      As I heard some PSK31 running over the airwaves I saw a call from 9A1CCB which for me is very rare to hear on the airwaves, signals were strong and I sent repeated calls back to him even tried turning up the power to 100 watts but still no luck on it. I was using a 30m end fed antenna to do the contact as my 20m double bazooka was destroyed years ago by a typhoon.here in the Philippines. No such luck with the station. My station worked a PY2 from Brazil a week before. So maybe the problem was his directional antenna, if he was using one was aimed the other way as I did see many european and states side contacts work him.

    Ham radio is full of surprises and alot of fun and you can meet many great people both from your contacts and from local clubs. Join in and as they say in ARRL GOTA(get on the air)

Friday, February 11, 2011

Chinese broadcasts on 13 mhz

    Not to uncommon to hear stations that aren't listed on the Passport or WRTH books but its unusual for stations to just sort of pop up on bands they normally dont broadcasts on as example today I am hearing Chinese broadcasts on 13970 khz at 04:00 utc I was surprised as I heard similar at 14870 khz 2 or 3 days before and it was around 00:10 utc. Give a listen around the bands and see what you hear on the radio.And if you can post it to the varuius shortwave groups like ASWLC.

Monday, February 7, 2011

JT65HF and PSK31 modes

For several years I have tinkered with other modes in Ham Radio from SSB, CW, and recently what we call the digital modes. Which is tones being sent via radio from one part of the world to the other with a computer via a radio interface like that of a Modem through software via various tech writers and off to another computer on the other side of the world.

Most of the information can be found from various websites who can help you get started., either you can do a Google or search the various sites, you even have a chance to witness it on youtube. Just type JT65hf or PSK31. And you will see alot of the subject.

I first did PSK31 after seeing a demo of this at the San Diego Six shooters Ham Club in San Diego

check out the following sites for these modes.

JT65A HF Frequencies




VFO FREQ

- 28076.0 kHz USB

- 24920.0 kHz USB

- 21076.0 kHz USB

-

18102.0 kHz USB

* 14076.0 kHz USB

* 10139.0 kHz USB

- 7036.0 kHz USB

- 7039.0 kHz USB

- 7076.0 kHz USB

- 3576.0 kHz USB

- 1838.0 kHz USB

- 1805.0 kHz USB



JT65A signal is normally about +1.3kHz to +1.5kHz higher than the VFO frequency.



Proposed frequencies for PSK31 QSO



- The plan for PSK31 activity has always been (since PSK31 started) to concentrate activity starting from the bottom edge of the IARU RTTY bandplan, expanding upwards as activity increased. The exception is in the 10mts band in order to give non full privileges ham to meet. It was defined as 150 Hz above it. Keep in mind that all you need is about 100 Hz as channel separation.

- These recommended frequencies are in accordance with the IARU bandplan for region 1. There may be differences for regions 2 and 3



1838.150

3580.150

7035.15 for region 1 and region 3, and 7080.15 for region 2 *

10142.150

14070.150

18100.150

21080.150 (although most activity can be found 10 kHz lower)

24920.150

28120.150



* This is due to the fact that the 7 MHz band is much wider in region 2 (the Americas), and the IARU bandplan reflects this.

Friday, February 4, 2011

BBC Updates

Please read the article here and its still sad the way BBC is closing its overseas services.