Category Archives: Perseus

NA MF Season Starts

The NA MF season has started again here in London after the Peruvian dominated LA/SA summer season closed. 0400 07 August 2015 was the best time and date last week and here’s how some common east coast power houses were sounding: 1660 WWRU NY, 1700 WRCR Rockland NY (new station), 1560 WMFE Family Radio NY and 1510 WMEX Boston MA.

There was nothing much evident below 1200 kHz but lots of carriers above that as well as audio from the more powerful stations. X-band in particular had carriers/audio on every channel.

Equipment was usual Perseus SDR plus 10x4m Flag antenna but I have replaced the home-brew binoc balun with the updated FLG-100 low noise Wellbrook pre-amp/balun. Playback was via the new 5.0a Perseus demo. Jury’s out on whether it will be worth paying for the updated V5 software when released. Perseus and FM+ are being heavily discounted now. From £699 plus £299 for the FM+ at Martin Lynch you can now pick up for £549 and £199 – looks like Elad is taking Microtelecom to the cleaners…

BTW no NR was applied to the playback – why some MF dxers insist on distorting audio with inappropriate use of noise reduction I’ll never know!

Peruvian MF stations heard in London

The LA MF season is well underway and here’s how three Peruvian stations were sounding in London Tuesday morning just before dawn 16 June 2015. Radio Santa Rosa 1500, Capital Radio 1470 and Bethel Radio 1510 from Lima on Perseus SDR/10x4m Flag antenna

And no, Horatio, without the Perseus these would not have been dxed live 😀


Elad FDM-S2 Not Deaf!

During the Whitsun week I tested the Perseus FM+ against the Elad FDM-S2 at the Carcassonne QTH. Now here’s the rub……..I identified a dodgy F female to BNC male adapter. And on testing the FM+/Elad/XDR I found they are all about the same sensitivity on 93.3 RNE Radio Nacional Cataluña from Rococorba – slight edge to the XDR. So I take it back (see previous post 21 April 2015) – the Elad is not deaf on Band II. Leaves me with some egg on my face but I’m happy that the discrepancy between receiving in London and Carcassonne has been resolved.

So why do some dxers find the Elad deaf? Dodgy connectors? Sample variations? Hmmmmm………….

My Radio History

Well it’s been a long time since I’ve updated! Autumn, Christmas and Winter 2015 have been and gone, and I am really looking forward to some sun and warmer weather! My DXCC totals have been progressing quite nicely – now have 282 worked and 247 LOTW confirmed. I managed a QSO with the mega-dxpedition K1N to Navassa Island – a dxpedition that unfortunately did not deliver all that it promised.

Here’s a few words on the radios that I have owned over the years.

I was not really into valve radios and my first real radio (12th birthday present?) was a Pye transistor which had the short wave bands on. Armed with an old copy of the WRTH from the local library I was started on a journey which was to cost me tens of thousands of pounds lol. My first real receiver was the Uniden CR2021 – . This cost £100 in 1984 when I was at university but it had a digital read-out!!! That was a large sum of money in those days (still is) and I paid for it by eating nothing but cheap baked beans for a fortnight.

I then moved on to the AOR7030 in the 1990s though I always wanted a JRC NRD535D but could never afford it (close to £2k with all the bells and whistles). Couple of years ago I picked one up off eBay for a few hundred pounds – did I need it? No. Did I want it – hell yes!!

In 2002 I got into amateur radio taking the Foundation exam and receiving an M3 call sign. Six months later I took the last but one RAE examination and got my full license. I’d define myself these days as an amateur HF dxer and my Icom 7600/Acom 1000/Cushcraft MA5B are my favourite toys. They cost a bit more than the old Uniden but I have such fond memories of that rig – it gave up the ghost quite a few years ago though I still have my Sony 2001D (another venerable classic) which I bought in the late 1980s to replace the Uniden. I have memories of listening to Peruvian and Bolivian tropical band (60m) stations in the dead of night on both the Uniden and Sony at different times in my life.

The Sony XDR-F1HD – what can I say… It simply enables Band II dxing in London and nothing beats its selectivity. I’m glad I picked two up when they could be had for sensible prices -below £100 all in. Scanner wise I splashed out on an AOR AR5000 in late 1990s which I still have and use nearly every day. Cost a bomb in its day as well and 2nd hand prices are still up above £800.

The Perseus SDR – again what can I say? It redefined MF dxing – just completely changed the parameters. Recording the entire MW band TOTHs and BOTHs overnight without having to be physically present!! Dxing NA/LA MF DX in the middle of the day by playing back the recorded files in pseudo-real time. Incredible.

Times move on though and the Perseus FM+ was such a disappointment though it’s great to see the Elad FDM-S2 performing so well and the developers interacting with the dx community rather than the customer unfriendly antics of the Perseus and Studio 1 crews. The rtlsdr dongles have been a revelation in the last few years and the authors of SDR# and SDR Console (the great Simon Brown) have given so much to dxers it’s not true.

If we can keep our bands as free as possible from QRM and QRN then we can carry on dxing with our valve rigs and dongles, Elads and Icoms for many a long year yet.