I also have a PL-330. Great little radio! I've done experiments with the excellent ETM. I'll often run 2 or three ETMs one after the other. I always (!) get slightly different numbers of stations that I receive each time. If you were to listen to each hit you get you'll some stations right at the threshold of receiving them. If some of them go down to below threshold on one pass of the ETM then on the next pass it might increase slightly or even go out completely. I like the 330 so much I'm thinking of ordering another. I already have 7 modern shortwave radios & can't decide which other different radio to get & unless I'm convinced that there's one at about the same price & at least as good as the 330 I'm sticking with a winner. My 330 was bought in April of '21. every antenna I have is a sloper from 20' to 50' long in various directions & angles. Each are coax fed with the coax shield grounded at entry to the building.
@anthonyfranz83177 ай бұрын
Outstanding test and results. Thank you for posting.
@mcdeadsquirrel Жыл бұрын
Excellant!!! Many thanks for this!!!!! !!!
@sfred
Жыл бұрын
Glad you liked it!
@arthurwolfram3632 Жыл бұрын
I love your videos. Your style and presentation are so relaxing to listen to! I had one question on your antenna. Can you tell us where you have positioned your MLA 30 plus antenna? Is it high up in the air on a pole? Or is it closer to the ground, say on a balcony? Does it need to elevated a lot? Thank you!
@sfred
Жыл бұрын
I've got it mounted on a wall on my roof deck. I played around with it and that was the lowest noise spot. I expect that it would be better above the roof-line, but this spot works fairly well.
@devarajans28819 ай бұрын
Try with a 9:1 unun at the long wire end.feed it to 3.5 mm antenna socket
@SeanFlaherty Жыл бұрын
what would be a good ground in a typical home? A water pipe? What did you connect the ground wire to?
@sfred
Жыл бұрын
That might work, but mine are plastic. I grounded this one to the box from the dryer outlet. That isn’t ideal but it was the most convenient thing.
@antonioliriololi5 ай бұрын
Old radios used to have one plug for the aerial antenna and another plug for the ground antenna
@F4LDT-Alain10 ай бұрын
Very interesting video that addresses a question I've asked myself several times, thanks. However... sorry if this is nonsense, but shouldn't the receiver itself be grounded? I'd try connecting the antenna to the tip of the jack only and ground the outer part of the jack. Then plug it into the receiver. What kind of antenna is there at the end of this coax cable? this could also be relevant. With a plain long wire antenna, the grounding might make a difference. I have plans to give it a try soon anyway.
@sfred
10 ай бұрын
It might help to ground the receiver, but that would be different than grounding the antenna (I think).
@toddk968
5 ай бұрын
@@sfred I automatically thought you would ground the antenna to the receiver, as in, attach the black clip to the ring of the headphone or antenna jack.
@vineyardsaker61958 ай бұрын
I have a question: what did you connect your aluminum wire to? I am trying to find something to ground my antenna in a room with no pluming anything else to ground to.
@sfred
8 ай бұрын
I answered this question here earlier: I grounded this one to the box from the dryer outlet. That isn’t ideal but it was the most convenient thing.
@StratmanII10 ай бұрын
Interesting video, thanks for taking the trouble to demonstrate the counterpoise effect on the PL-330! 🙂 I noticed that my PL-330, 320 and 368 radios almost always register 2245 kHz as their first station every time I perform an ETM+ scan. There's nothing transmitting on this frequency (at least, not at my QTH) and it's usual for me to delete this false signal for every hour. It's not a birdie though. I wonder if the ETM algorithm wrongly recognizes 2245 kHz as a valid signal. 📻🤔
@sfred
10 ай бұрын
Interesting. My 330 didn’t register 2245 just now.
@StratmanII
10 ай бұрын
@@sfred Luck of the draw, I guess. There are no shortwave stations broadcasting on such a low frequency like 2245 kHz, yet my radios tend to register them as valid stations. Sometimes I can hear random and mixed signals - it's as if the PL-330 suffers from images at the lower frequencies.
@eyadabusharar2457Ай бұрын
Hello I think antenna plug 3.5 should to has two wire one of them for ground, I think there is not need to put ground wire up to main of antennas radio, it has nothing
@Steven-re7xt10 ай бұрын
Well took the question to task. And cut a small lug and had care fuly placed a wire on the batt negtave input. Then assembled radio. The effort pays for it selfe. Except around. Hi tension lines. Where a distinct 60 hertz hum is found. But away in camp its better by 25% or more. Tks fer good idea. Odn-1
@kellyklaask7su99010 ай бұрын
Interesting video. I have been wondering the same thing! Oh, and I see you're a fountain pen guy! Another fine hobby. I've even turned a few. de K7SU
@Steven-re7xt Жыл бұрын
I remember the the days of phone dial stops hi hi. Good antenna.+ground =. So my mod is to put a stub connected to the radio chassis.duping the antenna.
@MAGNETAR-187Ай бұрын
You can't ground a pl330 because it uses a 1020 mAh bl5c battery!
@burkena2 ай бұрын
When you figure it out. Im out at 8 minutes Make another video
Пікірлер: 24
I also have a PL-330. Great little radio! I've done experiments with the excellent ETM. I'll often run 2 or three ETMs one after the other. I always (!) get slightly different numbers of stations that I receive each time. If you were to listen to each hit you get you'll some stations right at the threshold of receiving them. If some of them go down to below threshold on one pass of the ETM then on the next pass it might increase slightly or even go out completely. I like the 330 so much I'm thinking of ordering another. I already have 7 modern shortwave radios & can't decide which other different radio to get & unless I'm convinced that there's one at about the same price & at least as good as the 330 I'm sticking with a winner. My 330 was bought in April of '21. every antenna I have is a sloper from 20' to 50' long in various directions & angles. Each are coax fed with the coax shield grounded at entry to the building.
Outstanding test and results. Thank you for posting.
Excellant!!! Many thanks for this!!!!! !!!
@sfred
Жыл бұрын
Glad you liked it!
I love your videos. Your style and presentation are so relaxing to listen to! I had one question on your antenna. Can you tell us where you have positioned your MLA 30 plus antenna? Is it high up in the air on a pole? Or is it closer to the ground, say on a balcony? Does it need to elevated a lot? Thank you!
@sfred
Жыл бұрын
I've got it mounted on a wall on my roof deck. I played around with it and that was the lowest noise spot. I expect that it would be better above the roof-line, but this spot works fairly well.
Try with a 9:1 unun at the long wire end.feed it to 3.5 mm antenna socket
what would be a good ground in a typical home? A water pipe? What did you connect the ground wire to?
@sfred
Жыл бұрын
That might work, but mine are plastic. I grounded this one to the box from the dryer outlet. That isn’t ideal but it was the most convenient thing.
Old radios used to have one plug for the aerial antenna and another plug for the ground antenna
Very interesting video that addresses a question I've asked myself several times, thanks. However... sorry if this is nonsense, but shouldn't the receiver itself be grounded? I'd try connecting the antenna to the tip of the jack only and ground the outer part of the jack. Then plug it into the receiver. What kind of antenna is there at the end of this coax cable? this could also be relevant. With a plain long wire antenna, the grounding might make a difference. I have plans to give it a try soon anyway.
@sfred
10 ай бұрын
It might help to ground the receiver, but that would be different than grounding the antenna (I think).
@toddk968
5 ай бұрын
@@sfred I automatically thought you would ground the antenna to the receiver, as in, attach the black clip to the ring of the headphone or antenna jack.
I have a question: what did you connect your aluminum wire to? I am trying to find something to ground my antenna in a room with no pluming anything else to ground to.
@sfred
8 ай бұрын
I answered this question here earlier: I grounded this one to the box from the dryer outlet. That isn’t ideal but it was the most convenient thing.
Interesting video, thanks for taking the trouble to demonstrate the counterpoise effect on the PL-330! 🙂 I noticed that my PL-330, 320 and 368 radios almost always register 2245 kHz as their first station every time I perform an ETM+ scan. There's nothing transmitting on this frequency (at least, not at my QTH) and it's usual for me to delete this false signal for every hour. It's not a birdie though. I wonder if the ETM algorithm wrongly recognizes 2245 kHz as a valid signal. 📻🤔
@sfred
10 ай бұрын
Interesting. My 330 didn’t register 2245 just now.
@StratmanII
10 ай бұрын
@@sfred Luck of the draw, I guess. There are no shortwave stations broadcasting on such a low frequency like 2245 kHz, yet my radios tend to register them as valid stations. Sometimes I can hear random and mixed signals - it's as if the PL-330 suffers from images at the lower frequencies.
Hello I think antenna plug 3.5 should to has two wire one of them for ground, I think there is not need to put ground wire up to main of antennas radio, it has nothing
Well took the question to task. And cut a small lug and had care fuly placed a wire on the batt negtave input. Then assembled radio. The effort pays for it selfe. Except around. Hi tension lines. Where a distinct 60 hertz hum is found. But away in camp its better by 25% or more. Tks fer good idea. Odn-1
Interesting video. I have been wondering the same thing! Oh, and I see you're a fountain pen guy! Another fine hobby. I've even turned a few. de K7SU
I remember the the days of phone dial stops hi hi. Good antenna.+ground =. So my mod is to put a stub connected to the radio chassis.duping the antenna.
You can't ground a pl330 because it uses a 1020 mAh bl5c battery!
When you figure it out. Im out at 8 minutes Make another video