Showing posts with label Shortwave listening. Show all posts
Showing posts with label Shortwave listening. Show all posts
Thursday, 26 January 2017
Trying to copy Radio Afghanistan on 6100 kHz
I've been trying to record Radio Afghanistan on 6100 kHz this afternoon with the Eton Satellit and Bonito Boni whip, but with no success. They've been copied by several DXing fellows on YouTube recently, so try to listen out for them. Severe adjacent channel QRM from China makes the English programme difficult to receive with any discernible audio.
Tuesday, 24 January 2017
The Eton Satellit; is it any good? Moving on to ABC Northern Territories 2325 kHz...
Hi there, wonderful to copy a signal from Tennant Creek on ABC's lowest shortwave band frequency - and one for which the use of SYNC and SSB was appropriate, as a test of those functions and to maximise discernibility. The audio quality on SYNC doesn't seem as clear on the Eton as it does on the Sony ICF-2001D, but it does work, as does SSB. Having said that, a data set of one reception video using SYNC isn't statistically significant, so definitely more to come before my mind is made up.
It's worth remembering that simply hearing ABC Northern Territories on 120 metres with this little Eton is amazing, given it's (unfair) reputation, thus I certainly wasn't expecting such great things from it!
Recorded at the woods in Oxford UK on 22/01/17 at 18:56 hrs UTC using a 50 metre longwire. Thanks for watching.
It's worth remembering that simply hearing ABC Northern Territories on 120 metres with this little Eton is amazing, given it's (unfair) reputation, thus I certainly wasn't expecting such great things from it!
Recorded at the woods in Oxford UK on 22/01/17 at 18:56 hrs UTC using a 50 metre longwire. Thanks for watching.
The Eton Satellit; is it any good? Rádio Nacional de Angola 4950 kHz...wonderfully clear signal
Hi there, my clearest reception of Angola to date, using a 50 metre longwire and another vindication of this excellent portable receiver. Rádio Nacional de Angola can be a very challenging DX target, particularly at home, where more often than not, modulation is very low and thus discernible audio difficult to capture. Here on a DXpedition, the Eton really pulls in a strong signal with very clear audio and again, I wasn't anticipating such strong performance. Recorded at the woods in Oxford UK on 22/01/17 at 19:17 hrs UTC using a 50 metre longwire. Thanks for watching.
Monday, 23 January 2017
The Eton Satellit; is it any good? Let's start with ABC Northern Territories on 120 metres...
Hi there, the Eton Satellit has had mixed reviews since it's launch, with particular focus on poor SYNC audio and inferior raw sensitivity - at least when compared to it's older, bigger 'Satellit' siblings. As a result, some hobbyists and commentators have questioned whether it's even worthy of the 'Satellit' branding.
As most of you know, I own some very capable portable receivers and on the basis of what I recorded with the Eton over the weekend, in terms of raw sensitivity, this little radio might be up there with the very best portable radios ever made. Here is wonderful reception of ABC Northern Territories from Katherine on 120 metres, which tops all of my previous receptions. If the Eton can do this, then clearly it isn't suffering from intrinsic poor sensitivity and I would need convincing that a vintage Satellit would be much more capable.
More videos to come to further demonstrate the sensitivity and various other aspects of the Eton's performance. Recorded at the woods in Oxford UK on 22/01/17 at 18:52 hrs UTC using a 50 metre longwire. Thanks for watching. PS Goodbye to ABC on shortwave, you'll be missed.
Sony ICF-SW77 vs ICF-SW55 vs Tecsun PL-310ET: Radio Aparecida 6135.2 kHz, Brazil
Hi there, another station that's very difficult to hear well in Europe and another demonstration of the exemplary performance of the Sonys and although clearly struggling with this weak signal, an excellent effort by the modestly priced Tecsun PL-310ET which actually produces some audio. Amazing really. Recorded in Oxford UK on 29/12/16 at 20:39 hrs UTC using a Wellbrook ALA1530 active loop antenna.
Wednesday, 18 January 2017
240 metre barbed wire fence vs Boni whip: Voice of Africa 9505 kHz, Sudan..the whip wins yet again!
Hi there, the Boni whip does it again, delivering a stronger signal than the barbed wire fence with this signal from Sudan. My £100 investment is starting to look like a good deal now! Recorded in Oxford UK using a Sony ICF-SW55 receiver on 14/01/17 at 16:44 hrs UTC. Thanks for watching.
Labels:
Barbed wire fence,
Boni whip,
Bonito,
DXing,
DXpedition,
Oxford Shortwave Log,
QRM,
Shortwave listening,
Shortwave portable,
Shortwave radio,
Sony ICF-SW55,
Sudan,
Voice of Africa
Tuesday, 17 January 2017
240 metre barbed wire fence versus Boni whip : AIR National Channel 9380 kHz..the whip wins again!
Hi there, the whip trounces the barbed wire fence again, this time the target is the signal from All India Radio National Channel on 9380 kHz (TX Aligarh, 250 KW). Very nice to see the whip coming into it's own on a DXpedition! Recorded in Oxford UK on 14/01/17 at 16:39 hrs UTC using a Sony ICF-SW55 recevier. More videos in this series to come. Thanks for watching.
Monday, 16 January 2017
Setting up to compare the Bonito Boni whip performance to a 240 metre barbed wire fence
Hi there, I thought this would be an interesting experiment. Having established the effectiveness of the whip against the Wellbrook ALA1530 active loop and a 30 metre longwire in an urban environment, I turned my thoughts to how it would perform in a quiet location, up against one of my established ad-hoc antennas! A further test in the woods will follow, but for now, here is my DXing set up for comparing the whip to the barbed wire fence!. The results which are to follow, are quite surprising. Thanks for watching.
Saturday, 14 January 2017
Urban DX antenna test #3: Comparing 30 metre longwire to Boni whip
Hi there, the third reception video in this series of tests, comparing the Bonito Boni whip with a 30 metre longwire in an urban environment and then, as usual, a check on how the signal is heard with the Wellbrook ALA1530. In this example of the signal from Myanmar Radio 5985 kHz, there is no audio with either the longwire or Boni whip, only the ALA1530 manages to resolve some audio from their weak modulation. A LW and MW example to come, where, in one instance, the Boni whip prevails against the longwire. Conclusion: on SW, there is no advantage to the whip over a longwire, but no disadvantage either. Thanks for watching.
Urban DX antenna test #2: Comparing 30 metre longwire to Boni whip
Hi there, the second comparison video in this series, this time using the large signal from CRI on 6020 kHz. Again, there's little difference in SNR performance between the 30 metre longwire and Boni whip. More to come. Thanks for watching.
Friday, 13 January 2017
Thursday, 12 January 2017
Sony ICF-SW77 vs ICF-SW55 vs Tecsun PL-310ET: Zanzibar BC 11735 kHz
Hi there, the next video in thsi series targets the signal from Zanzibar BC in the Indian Ocean. Once again, all three radios deal with this relatively strong signal well, with the Sonys sounding quite similar. The PL-310ET isn't far behind, but clearly the SNR is below that of it's more expensive counterparts. Recorded in Oxford UK on 29/12/16 at 20:25 hrs UTC using a Wellbrook ALA1530 active loop antenna. Thanks for watching.
Wednesday, 11 January 2017
Tecsun PL-310ET: a quick demo of the excellent audio bandwidth filters
Hi there, here is a quick demonstration of the really excellent audio bandwidth filter options on the modestly priced, but brilliant Tecsun PL-310ET. Whilst out on a DXpedition a couple of weeks ago and using the barbed wire fence as my antenna, I tuned to 590 kHz to check the signal from Voice of Tigray Revolution, Addis Ababa. However, all I could hear was splatter from RRI's huge signal on 5955 kHz. Here is a video with commentary explaining how I was able to copy Voice of Tigray Revolution on this budget portable, despite the horrendous adjacent channel QRM. Quite a remarkable little radio. Thanks for watching.
Bonito Boni whip versus Wellbrook ALA1530 test #7 winner: Wellbrook (7 wins out of 7)
Hi there, this is the final test comparing these two antennas in my noise-laden shack, using the Afia Darfur signal on 9510 kHz, from Santa Maria di Galeria, Rome, Italy. Once again, reasonable reception on the Wellbrook with an audio bandwidth filter of 6.6 kHz and a signal pushing over S9. However, once the whip is connected, the noise floor increases by more than 10 Decibels and the signal almost dissapears under the blanket of amplified noise. So it's 7 wins out of 7 for the Wellbrook, but I'm not giving up. For the next test, I'm interested to see how the whip performs against a 30 metre piece of wire slung around the garden - a less than ideal arrangement I used for some time before I purchased the Wellbrook. Then finally I'm going to take them both out to the woods and run another comparison. I must reiterate that I really want the Boni whip to prove itself an excellent performer in a quiet environment, because that would give me an excellent, very portable antenna to use on DXpeditions. Thanks for watching.
Labels:
Active loop,
ALA1530,
Amateur radio,
Antenna,
Boni whip,
Bonito,
DXing,
DXpedition,
Longwave DX,
Medium wave DX,
Oxford Shortwave Log,
QRM,
SDR,
Shortwave listening,
Shortwave radio
Monday, 9 January 2017
Bonito Boni whip versus Wellbrook ALA1530: Test #1 winner: Wellbrook
Hi there, here is a signal from Medi 1 on LW 171 kHz with nice audio on the Wellbrook ALA1530. Watch as the Wellbrook is unplugged from the Elad FDM DUO and the Boni whip connected (using the supplied radiating element). The noise floor jumps by around 20 decibels and the resulting audio is severely compromised. I read that the Boni whip is often very ineffective in buildings, so I put both antennas in the garden to give it the best chance of success. The problem is however, that my garden is often noisier that inside the house because our neighbours surround us quite closely on three sides. Anyway, test number 1 is a disaster for the Boni whip. Let's see what happens next. Thanks for watching.
Labels:
Active loop,
ALA1530,
Elad,
FDM SUO,
Longwave,
Longwave DX,
LW,
Magnetic loop,
Medium wave,
Medium wave DX,
MW,
MW DX,
Noise,
QRM,
SDR,
Shortwave listening,
Shortwave radio,
Software defined radio,
Wellbrook
Setting up to test the Bonito Boni-Whip against the Wellbrook ALA1530
Hi there, some of you will remember that I recently purchased a Bonito Boni-whip to use as a second antenna at home. I've read reviews that support this antenna and of course the views of just as many detractors. One user mentioned that it was performing as well as, or almost as well as his Wellbrook loop. That would be great as it cost less than half of what I paid for my ALA1530 14 months ago. I plan to test them head-to-head using the Elad SDR spectrum and record signals on LW, MW and SW. It should be an interesting test! Reception videos to come in the next couple of days. Thanks for watching.
Radio Hargeysa 7120 kHz, Somaliland, great reception...whilst my Sony continued to drown!
Hi there, possibly the best signal I've ever obtained from Radio Hargeysa. The weather was really rubbish and I was concerned that I might end up short-circuiting the Sony as it got very wet. Recorded in oxford UK on 06/01/16 at 16:51 hrs UTC using a Sony ICF-2001D receiver and 75 metre longwire antenna. Thanks for watching.
PBS Xizang 6130 kHz, Tibet, English service...whilst my Sony ICF-2001D slowly drowns!
Hi there, a nice signal from Lhasa-Baiding, Tibet, in English. I've only ever heard this station once previously, a year last december, so this was a pleasing catch.The weather wasn't great and my Sony got very wet during this short DXpedition into the Oxfordshire countryside. Never mind, it's still working and that's the main thing. Recorded on 06/01/16 at 16:47 hrs UTC using a 75 metre longwire antenna. Thanks for watching.
Saturday, 7 January 2017
Sony ICF-SW77 vs ICF-SW55 vs Tecsun PL-310ET: Zambia NBC Radio 1 5915 kHz, excellent reception
Hi there, here is another comparison of these three great portables and I
have to say, all three perform very well. For me, the best audio is
very close between the ICF-SW55 and ICF-SW77....I can't make my mind up
lol.The Tecsun also does really well - you wouldn't necessarily expect a
sub £40 radio to have the necessary selectivity in this part of the
crowded 49 metre broadcast band, but it manages to detect the signal and
deliver pretty good audio. A+ again from Tecsun! Recorded in Oxford UK
on 19/12/16 at 18:03 hrs UTC using a Wellbrook ALA1530 active loop antenna. Thanks for watching.
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