We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Topics - VK3BVW

Pages: 1 ... 3 4 [5] 6 7 ... 31
61
Equipment / Two New Videos - Preparing for Your Next DXpedition
« on: September 12, 2017, 0457 UTC »
Some of you will be aware that I am passionate about going portable/mobile with my radio listening hobby. There's just nothing like communing with both nature and a bunch of electrons whizzing along the wire!

As a follow up to an article I wrote several years ago, I have now prepared two new YouTube videos entitled Preparing for your Next DXpedition - Parts 1 and 2.
 
Part 1 covers:
- why we should even think about bothering to go portable with the radio
- the goals to consider when undertaking a DXpedition
- planning your listening depending on the time of day and time of year
- the all important decisions regarding location

Part 2 discusses:
- choosing the right radio for portable operations
- your options for powering the radio
- the antennas you could consider including on the trip
- handy auxiliary equipment
- references and notes to take along with you
- the importance of operator comforts while away
- developing a checklist.....so that you don't forget to take something important!

There may be something of interest in these videos that could assist you in further enjoying our great hobby. I've posted the links below.

Part 1:  https://youtu.be/AUtXWxP4gtE

Part 2:  https://youtu.be/LlvJzMH6YMw

As always, thanks for taking the time to watch my video ramblings; your comments and feedback are always welcome.

73, Rob VK3BVW

62
Shortwave Broadcast / ***** Ozy Radio Returns ******
« on: August 29, 2017, 0724 UTC »
The flea-powered Ozy Radio has begun testing on 5045 kHz in the 60-meter band. First noted here in Australia on August 28, the station has been missing for several years from its former 3210 kHz allocation. The location has been reported as Razorback, New South Wales, but I have not been able to confirm this yet. The transmitter power and the type of antenna are also unknown at this time. Observations by myself and other Australian listeners have noted the station operating between 0600 and past 1300 UTC.

The signal into Mount Evelyn, Victoria (at a guess, about 800 km from the reported transmitter site) is very strong Ė about 10 dB over S9! This is a much better signal than was ever heard on the old 3210 outlet. Whatever has been done at the station appears to be working very well! I believe there is a very good chance that Ozy Radio will be heard internationally!

The current programming consists of test transmission announcements, relays of the Australian Independent News service, and continuous antique pop music from the 50s and 60s. Cheekily, the station is also using the Radio Australia interval signal, while the RA kookaburra also fires off every now and again throughout the broadcasts. Iím not sure how the ABC feels about that!!

Here is a short video I prepared of the test announcement and email address given out at 1356 UTC.

https://youtu.be/L1nm7zzcFN0

UPDATE:
The current power output is 500w and the location is now confirmed as Razorback near Camden approx 45 km southwest of Sydney. Thanks to John Wright for the eQSL statement and information. John also reports that reception reports have been received from as far away as Germany.

Here's hoping that you guys in the US can catch this one!

73, Rob Wagner VK3BVW

63
Equipment / Horizontal Loop Antenna Experiments
« on: August 22, 2017, 1012 UTC »
Manmade noise levels have increased dramatically at my place in the past six months. It has suddenly become much harder to hear weaker shortwave signals. Even the stronger stations are getting covered in all types of hash from all manner of electrical appliances.

So, I have been looking at ways to reduce the noise problem. I'm currently researching several possible solutions, including trying a different antenna. The HF horizontal loop has been around for many years now, but it's a new antenna for me. I've never had a need to try one.....until now! There is documentation out there praising this antenna's low noise capabilities. So, it's time to find out for myself and get to building an experimental version. The results have been quite pleasing, so far!

In a YouTube video I have prepared, I discuss the reasons for looking at this antenna, its design, and its installation. I also do some on-air comparisons of my rectangular (!) version of the horizontal loop against my three regular double bazooka (coax) dipoles and the Par SWL End-Fed antenna. Oh, and Chris Smolinski gets a mention, too! I hope you find this video of interest. Here's the link:

https://youtu.be/OLq3nBQppqg


73, Rob VK3BVW

64
Clandestine Stations / 17860 - Voice of Khmer M'Chas Srok
« on: August 13, 2017, 1149 UTC »
17860   TAJIKISTAN. Voice of Khmer M'Chas Srok - Dushanbe. Very weak signal at s/on 1130 with a long talk in the Khmer language. Faded out by 1140 - this is a tough one with winter nights and low sunspots both conspiring against any sort of signal into Mount Evelyn! Schedule is Sun and Tues only. Aug 13.

65
Shortwave Broadcast / 15515 Kuwait
« on: August 13, 2017, 1115 UTC »
15515   KUWAIT. R. Kuwait - Sulaibiyah. A fair to poor signal at 0735 with long Arabic discussion. A quick ID at 0741 and into Arabic pop song. Beams to EAs at 59˚, Aug 12.

66
13810   UNITED ARAB EMIRATES. Dandal Kura R. - Dhabayya. To WAf in Kanuri at 0715 with news programming. According to HFCC it's a new site for this service 0700-0800 (ex Woofferton as of Aug 7). Poor signal and seemed to be some technical issues with modulation, Aug 12.

67
Shortwave Broadcast / VoMongolia - Distorted Japanese Audio
« on: August 13, 2017, 1113 UTC »
12034.88   MONGOLIA. VoMongolia - Ulaanbaatar. Japanese to As at 1045 with pop music and talk. Some distortion on the audio, fair signal and monitored until s/off 1100 on  Aug 13.

68
Shortwave Broadcast / Radio Sama 15240
« on: August 13, 2017, 1112 UTC »
15260   AUSTRIA. IBRA R. (Radio Sama) - Moosbrunn. S/on 0800 in Arabic to ME with ID and preaching. This seems to be part of IBRA Media, not FEBA as appears in Eibi listings. It also has its own website: www.radiosama.net. Weak signal and f/out 0815, Aug 12.

69
Shortwave Broadcast / SIBC Off Air :-(
« on: August 13, 2017, 1109 UTC »
Both 5020 and 9545 kHz for SIBC - Honiara are currently off air, as noted by Ron Howard (CA) yesterday and myself tonight (at 1015 UTC). Hoping this is just technical issues and not something more permanent!

70
Shortwave Broadcast / Guam 15215
« on: August 11, 2017, 2256 UTC »
15215   GUAM. KSDA - Agat. AWR programming in Mandarin to EAs with pop hymns at 2250, fair signal Aug 11.

71
Shortwave Broadcast / D.P.R.Korea This Morning
« on: August 11, 2017, 2255 UTC »
11680   D.P.R.KOREA. KCBS - Kanggye. The domestic service at 2210, plenty of rhetoric, fair signal and still heard going past 2300Ö.has she paused to take a breath yet? Fair signal on Aug 11.

13760   D.P.R.KOREA. VoK - Kujang. English service to Eu coming in well with little bother from the low level jamming at 2215. Then into Spanish at 2230, Aug 11.

72
Shortwave Broadcast / Two Africans
« on: August 11, 2017, 2254 UTC »
5980   BOTSWANA. VoA - Moepeng Hill. English language lessons at 2120 in the 30-min French service to Af. Fair signal until s/off 2130, Aug 11.

5995   MALI. RTV du Mali - Bamako. Afro instrumental music at 2155, ID in French at 2200, then intro into a new talk program, weak signal on Aug 11.

73
The shortest day of the year is coming up this week in southeastern Australia. Afternoon reception (from midday local time) on the 31mb is great! The link below is a video I made, showing how quiet it is in the bush, and enabling us to hear some of the weakest signals.

Mt Beenak DXpedition Video - Mid-Winter Afternoon Propagation

https://youtu.be/yt3tdV0fVzM

74
Shortwave Broadcast / Vietnam not in English at 1100 UTC!
« on: June 09, 2017, 1206 UTC »
7285 VIETNAM. VoVietnam - Son Tay. Laotian service noted at 1110 with mainly talk until 1128 when a Vietnamese pop ballad. EiBi is listing this as English at 1100-1130, and even the VoV website schedule says this! But not the case on June 9. Laotian running till 1157, then dead air till 1200 when it changes into French. Poor signal here. The service is targeted to Laos, Thailand and Cambodia.

75
Equipment / RETRO RECEIVER REVIEW #10 - The DRAKE SPR-4
« on: June 09, 2017, 0947 UTC »

Itís been nearly three months since we published our last Retro Review by special MEDXR contributor Craig Seager VK2HBT. But this time, he has come up with a classic receiver for us to explore.

http://medxr.blogspot.com.au/2017/06/retro-receiver-review-10-drake-spr-4.html

Pages: 1 ... 3 4 [5] 6 7 ... 31