The big issue these days is a power supply for your Grundig satellit 800 – so often the OEM power supply and the radio are no longer keeping each other company. So people buy them – got a cheapy power supply and then complain that the old radio is no good – I get all this static all the time – grumble grumble . . .
Chances are they are using a switching ( or cheapy ) power supply and the satellit 800 is sensitive enough that you WILL have noise issues. Period.
I had actually forgotten about JAMECO over the years and I searched for linear power supplies for the satellit and JAMECO popped up in the search results – and a little bell went ding in my head – got on their site and ordered 2 ( 1 is none – 2 is one ) – nice stuff and dead quiet – and far cry from feeding D cell batteries into it as it is a total battery whore – eats them like they’re free!
Take some time and peruse JAMECO’s web site – all the little “stuff” that you used to run down to Radio Shack and grab? Chances are JAMECO has it and has it at real good prices AND fast shipping . . .
Here is a Mr. Carlson video that gives a great explanation of switching vs linear power supplies. Sometimes that noise YOU are fighting YOU are creating.
The random wire antenna project shifted to plan B ( head out back to the corner of the shed ) as the tree I was going to use is more than likely going bye-bye late this fall or early spring. And that’s fine – it will end up at at 34 feet plus or minus, which is long enough to get down below AM broadcast band. 57 feet would have been a little better – the loop really falls off fast as you drop down towards a 100khz – and really doesn’t do much at all below that. With any luck and if the creek don’t rise I should get that done this weekend.
Here’s a look at a comparison video – 750 vs 800 . . .
For me and my purposes the 750 is just as good and easier to use – YOUR ACTUAL MILEAGE MAY VARY – LOL!
Have Fun! – Run the Gun! – and remember – Fish Heads are Cheap!!
And thanks for asking – but I did find a home for my boat anchors – part of the deal was would I please find a power supply for the Grundig – you do what you gotta do – LOL! And the Grundig still works great and the nostalgia factor is off the scale – BUT – I am totally spoiled with the SDR.
I push content out on text messages as well as on this platform – and slowly trying to get folks shifted over to this one – it’s going to take time – folks, if you want to comment on something – I urge you to comment on this platform rather than texting – get more folks/feedback involvement makes for a more interesting blog for all . . .
In texting to several people I made the statement that the RF-PRO-1B was as good as it gets – maybe the best out there . . .
And I failed to “qualify” that statement – Oops – My Bad . . .
For a small yard or garden ( a little UK lingo for you ) – where space is a consideration – it can be mounted on a 4X4 post dropped in a hole with a bag or two of Quikcrete and you’re good to go – 15.25 square inches of space is all you need – a cheapy rotator is all you need – and if you don’t want to do that? Just orient it in an east to west axis. That will get you most everything you would want to listen to. The rotator helps to reduce noise and or lower interference from stations interfering on close frequencies. You could even use a 10 foot piece of top rail from a chain link fence stuck in the ground – loops don’t need to be stuck way up in the air.
The biggest benefit for me? Noise reduction . . .
Here is three quick clips from yesterday – this is Eastern Atlantic Air Traffic Control –
Now there are somewhere between more than one and a gazillion web sites out there where you can listen to various streaming ATC feeds on the internet – where is the fun in that?
GO HERE and look at the Frequencies and start hunting – therein lies the fun!
So back to “is it the best?” Simply answered – NO – BUT – to get better takes MUCH more space and much bigger piles of money. How about a wire antenna? Full wave length wire AM broadcast band antenna for say 890 khz – WLS – roughly 336 meters or 1105 feet – click on them for the on line calculator(s) – and not even taking into account the wire needs to be suspended above the ground, it’s easy to see how actual wave length wire antennas can really get out of hand in a hurry!
Another way to approach a “better” system is what is called a receive circle array – FOUND HERE at DX Engineering – it is better – BUT – you need quite a pile of monies and to do it most efficiently – about a circular clear space roughly 400 feet across – a little less than 4 acres – Well let me just pull that out of my pocket – Not!
For antennas you start into 1/2 wave and 1/4 wave antennas – with loading coils to just be able to have them a size to where you reasonably utilize them – a random wire antenna will work / it’s simply as long as you have space for – yagi or beam antennas are another way of doing this – again for receiving they work but the trade off comes in complexity, cost and size – the loop antennas hit quite a sweet spot for a lot of applications.
Here is KJJQ AM – 500 watts – app. 50 miles due North of me – the loop in line with or “pointed” at them . . .
And the loop oriented 90 degrees away from them . . .
It’s not perfect – but this illustrates how you can turn the the loop to diminish a signal ( or noise source ) so you can hear “through” it or “around” it. The other unsung hero in this is the LNA ( Low Noise Amplifier ) that comes with the antenna – really good stuff. And the one thing a lot of folks don’t pay enough attention to is grounding – I’m grounded at the base of the antenna – again at the entry into the house-and – yet again ( this is temporary – no judgement please ) the shield side of the coax just before the Discovery SDR . . .
The shield on coax protects the inner wire from picking up stray or spurious signals of RFI/EMI and carrying them into your receiver. Long term the #6 solid copper coming in from the ground rod will terminate at something like this . . .
Ahead of the SDR are an AM and FM band pass filter – both are Flamingo brand ( Nooelec ) – ( RTL-SDR also has them – I have a set of those also ) which help some in stopping some AM/FM strong signal interference from crashing the party . . . Obviously if I am going to go creeping through the AM broadcast band in the middle of the night I take them out of line.
Bottom line – there are better options but everything has a trade-off of some sort – the RF-PRO-1B hits the sweet spot for me – will it work for you? – you have to make that decision – a lot of factors come into play – cost / available space / ease of use . . .
If you are using a random wire or an inexpensive loop – the RF-PRO-1B will take your short wave listening well into the next level – for all of my factors taken into consideration it is the best – and more than likely will suit your purposes well . . .
Have Fun! – Run the Gun! – and remember – Fish Heads are Cheap!!
You folks out there better wake up – and now the united nations the one world commie fuck walking dead ( FIFY ) have volunteered their “services” to help our allegedly elected commie fucks to go door to door and take our guns – isn’t that special – Bless Their Little Hearts . . .
Have Fun! – Run the Gun! – and remember – Fish Heads are Cheap!!
Yes – Yes it does – and quite well I might add . . .
The picture below shows the radiation pattern for a loop antenna – which is also its receive pattern – it has two defined receive “spots” and two defined “null” spots . . .
Here is WLS Chicago at about 5AM CDST this morning with the antenna oriented to an East / West receive axis . . .
And here are the “nulls” oriented East / West . . .
The audio really sucks on these two clips – still trying to figure the hardest way to capture decent audio and work backwards from there – LOL! – but – look at the signal strength – the top one you heard clear – the bottom one not at all . . .
While it is not a complete blanking of signal – the use of the “null” aspect of the loop allows you to significantly diminish a signal from a station – say from Spain – that is broadcasting on the same frequency as a station from – say South America – that you want to hear . . .
The Bottom line? The DXE-RF-PRO-1B does work – and works well! – I consider it a GREAT tool to use for SWL. Now I just have to get together with my neighbor and get my random wire antenna up – yet another “tool in the box” . . .
And that weird signal? Did some digging and found out it is a Russian OTH ( Over The Horizon ) radar – so now we know . . .
Have Fun! – Run the Gun! – and remember – Fish Heads are Cheap!!
Something that has been in the back of my mind for several years or so is these newer ( and new ) radios really out perform the old boat anchors from the 50’s and 60’s and 70’s – well you get the idea. What really made the point for me was hooking up my beloved Realistic DX-160 – to kinda give you folks an idea of how to do it . . .
After 10 minutes of tuning I couldn’t even find what I was listening to with no effort on the SDR and the QODOSEN – enough is enough!
When this QODOSEN DX-286 for 75 bucks . . .
. . . performs like this – in the house – on its little rod antenna . . .
. . . and the Airspy SDR not only out performs ANY and ALL of the old radios AND just about ALL of the new ones – but – lets you see the stuff being broadcast at a glance in the water fall display – you have to ask yourself – Self, do I want to spend my time fiddle farting with a radio or spend my time finding (and listening/enjoying ) to short wave broadcasting??
And just to illustrate the outside vs inside antenna thing – Radio Thailand on the SDR and the PRO 1-B outside antenna . . .
( i couldn’t get it at all in the house with anything – something in the house is spattering all over it )
( and yes i know the audio sucks on this clip – still trying to figure out what i’m doing )
And this?? Hellifino – ran across this yesterday – strange . . .
Bottom line – the new radios are simply so far beyond ANY of the old “legacy” radios – for all intents and purposes I am through with them – Anchors Aweigh – I’m shopping the whole pile – 200 bucks for the pile – and no – no delivering or shipping . . .
Have Fun! – Run the Gun! – and remember – Fish Heads are Cheap!!
Guns, Fun, Food and More 