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On Dec 20, 1:36*am, Bob Dobbs wrote:
How about a general outline of your procedure, like do you start with the ferrite only then add an external loop after you hear something, and a second after the first is optimized, going back and forth massaging the controls as needed? That's sorta how I used to do it with the SW-77. That is weird you ask that because a while back I was going to start a thread on that subject but I didn't think anyone would bother to engage so I didn't bother. First and foremost, you really need to have either a lazy susan or make something that spins 360. If you're using a radio that has a speaker that fires just from the front without any venting on the back of the radio to allow you to hear something clearly.... IMO you may want to rig up an extension speaker or you'll find yourself having to move around as your table turns and it really takes the fun out of it or makes it impossible IMO. Luckily for me the P780 has the venting on the back so I can hear a signal if it's faint without having to add on a speaker or getting up. When I'm doing a session I will use just the radio barefoot on the table because if you have the loop ( IMO) sitting next to it - you aren't getting a true "hearing" so too speak.....unless you would happen to have your loop tuned 'exactly' to the spot you're on - and that just doesn't happen IMO. You wouldn't get anything accomplished that way. I'll tune to either a faint spot or a spot that sounds like crap - with two or three stations jumbled together. Then I'll rotate the table to see where I stand signal wise. For about the last year or two (not last night) I just go to an empty spot where there's nothing, that's what is so cool - when you go to what seems is a empty spot and find something there by rotating your radio and then breaking out a loop to enhance it. But when I see where I stand - then I'll break out Dave's loop and if between using the loop and the table - - and I still don't get what I want - - then I'll sit the Radio Shack loop right next to the radio. But sometimes that will make it worse, like you said, then you start massaging them. I've found that more often than not - - the second loop has to be pulled somewhat away from the radio itself and tuned off freq. I'm sure you know what I mean. It just a matter of, like Dave said, having patience and remembering basically where you were before you tried to get the signal better and screwed it up...lol. The real kicker is when you use THREE LOOPS and in that case there is no way I can use the 36X39 and Dave's loop and the rat shack....either Dave's has got to go or the bigger one....it's simply impossible. But I can use the two from rat shacks along with the five sided loop and make it work. Very rarely do I use three, but I will do it if I don't get the desired result from the two. I wish others would pipe in so I could maybe pickup a different technique. With the E1 there isn't much directionality to speak of with the whip, so the loop is generally connected before I even start looking Just curious Bob, why did you get a receiver that doesn't have a internal stick? Do you DX the BCB with something else or is that problem solved satisfactorally for you the way it is now. with its tuning all the way at one end or the other, then when something interesting shows up, I tune 'for' it and rotate the loop to maximize, and only if there's something strong that's interfering do I try to do a null. Occasionally if there's a strong local I will tune to it to increase the null potential rather than reinforce the target, but that's only rarely an issue. Exactly. :-) All that's when I take the portable out to the park or somewhere away from the house, otherwise I use one of the external outdoor HAM antennas on one of those rigs since they tend to have better receivers even without synchronous detection. Oh really? That doesn't surprise me from what I have read. I have never owned a receiver that had synch. I know what it does and all ( I think) ....but how would a radio with synch be able to better what I do with my technique/equipment on the BCB? Some make it sound like if you don't have it you're screwed and the other side doesn't make that big a deal about it. What gives? |
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