Preselector
I've been getting all kinds of advice from everyone wherever I
posted this question and I really appreciate everyone's replies but I guess I wasn't too clear on my needs. I shouldn't have even mentioned the blowtorch as it really isn't a problem. IF I was at home during the day and wanted to listen to the shortwave, it would be a MAJOR problem. Alas, I work for a living and am not home during the day. I just mentioned that. Why, I'm not sure. What I was REALLY wanting to know was if a preselector would help with blocking spurious signals and images out of my older tube single conversion radios. Nothing to do with the blowtorch. He isn't a problem in the evening after they turn down the power. Again, I appreciate everyone's comments. I am learning more than I could have hoped to.:) |
Preselector
Preselectors are OK ; they do block some stuff; - however, it comes at a price of a few less decibels of input from the antenna Buy the Cheaper MFJ unit; it will probably help the older tube sets. http://www.mfjenterprises.com/produc...prodid=MFJ-956 I had it , then upgraded to the 1046; - which I have now disconnected.. Nice, but not mandatory Jim Hackett wrote: I've been getting all kinds of advice from everyone wherever I posted this question and I really appreciate everyone's replies but I guess I wasn't too clear on my needs. I shouldn't have even mentioned the blowtorch as it really isn't a problem. IF I was at home during the day and wanted to listen to the shortwave, it would be a MAJOR problem. Alas, I work for a living and am not home during the day. I just mentioned that. Why, I'm not sure. What I was REALLY wanting to know was if a preselector would help with blocking spurious signals and images out of my older tube single conversion radios. Nothing to do with the blowtorch. He isn't a problem in the evening after they turn down the power. Again, I appreciate everyone's comments. I am learning more than I could have hoped to.:) |
Preselector
Thanks Harvey
wrote in message oups.com... Preselectors are OK ; they do block some stuff; - however, it comes at a price of a few less decibels of input from the antenna Buy the Cheaper MFJ unit; it will probably help the older tube sets. http://www.mfjenterprises.com/produc...prodid=MFJ-956 I had it , then upgraded to the 1046; - which I have now disconnected.. Nice, but not mandatory Jim Hackett wrote: I've been getting all kinds of advice from everyone wherever I posted this question and I really appreciate everyone's replies but I guess I wasn't too clear on my needs. I shouldn't have even mentioned the blowtorch as it really isn't a problem. IF I was at home during the day and wanted to listen to the shortwave, it would be a MAJOR problem. Alas, I work for a living and am not home during the day. I just mentioned that. Why, I'm not sure. What I was REALLY wanting to know was if a preselector would help with blocking spurious signals and images out of my older tube single conversion radios. Nothing to do with the blowtorch. He isn't a problem in the evening after they turn down the power. Again, I appreciate everyone's comments. I am learning more than I could have hoped to.:) |
Preselector
If ya really want a 956, I have one for sale . . .
wrote in message oups.com... Preselectors are OK ; they do block some stuff; - however, it comes at a price of a few less decibels of input from the antenna Buy the Cheaper MFJ unit; it will probably help the older tube sets. http://www.mfjenterprises.com/produc...prodid=MFJ-956 I had it , then upgraded to the 1046; - which I have now disconnected.. Nice, but not mandatory Jim Hackett wrote: I've been getting all kinds of advice from everyone wherever I posted this question and I really appreciate everyone's replies but I guess I wasn't too clear on my needs. I shouldn't have even mentioned the blowtorch as it really isn't a problem. IF I was at home during the day and wanted to listen to the shortwave, it would be a MAJOR problem. Alas, I work for a living and am not home during the day. I just mentioned that. Why, I'm not sure. What I was REALLY wanting to know was if a preselector would help with blocking spurious signals and images out of my older tube single conversion radios. Nothing to do with the blowtorch. He isn't a problem in the evening after they turn down the power. Again, I appreciate everyone's comments. I am learning more than I could have hoped to.:) |
Preselector
I'm not entirely sure I want one but the price could be a determining
factor. ;) "Lisa Simpson" wrote in message .. . If ya really want a 956, I have one for sale . . . wrote in message oups.com... Preselectors are OK ; they do block some stuff; - however, it comes at a price of a few less decibels of input from the antenna Buy the Cheaper MFJ unit; it will probably help the older tube sets. http://www.mfjenterprises.com/produc...prodid=MFJ-956 I had it , then upgraded to the 1046; - which I have now disconnected.. Nice, but not mandatory Jim Hackett wrote: I've been getting all kinds of advice from everyone wherever I posted this question and I really appreciate everyone's replies but I guess I wasn't too clear on my needs. I shouldn't have even mentioned the blowtorch as it really isn't a problem. IF I was at home during the day and wanted to listen to the shortwave, it would be a MAJOR problem. Alas, I work for a living and am not home during the day. I just mentioned that. Why, I'm not sure. What I was REALLY wanting to know was if a preselector would help with blocking spurious signals and images out of my older tube single conversion radios. Nothing to do with the blowtorch. He isn't a problem in the evening after they turn down the power. Again, I appreciate everyone's comments. I am learning more than I could have hoped to.:) |
Preselector
Price just dropped to $40! : } ~1 month old; includes the 956-receiver
cable . . . "Jim Hackett" wrote in message . net... I'm not entirely sure I want one but the price could be a determining factor. ;) "Lisa Simpson" wrote in message .. . If ya really want a 956, I have one for sale . . . wrote in message oups.com... Preselectors are OK ; they do block some stuff; - however, it comes at a price of a few less decibels of input from the antenna Buy the Cheaper MFJ unit; it will probably help the older tube sets. http://www.mfjenterprises.com/produc...prodid=MFJ-956 I had it , then upgraded to the 1046; - which I have now disconnected.. Nice, but not mandatory Jim Hackett wrote: I've been getting all kinds of advice from everyone wherever I posted this question and I really appreciate everyone's replies but I guess I wasn't too clear on my needs. I shouldn't have even mentioned the blowtorch as it really isn't a problem. IF I was at home during the day and wanted to listen to the shortwave, it would be a MAJOR problem. Alas, I work for a living and am not home during the day. I just mentioned that. Why, I'm not sure. What I was REALLY wanting to know was if a preselector would help with blocking spurious signals and images out of my older tube single conversion radios. Nothing to do with the blowtorch. He isn't a problem in the evening after they turn down the power. Again, I appreciate everyone's comments. I am learning more than I could have hoped to.:) |
Preselector
Lisa.... email me at jim_hack at yahoo.com
"Lisa Simpson" wrote in message .. . Price just dropped to $40! : } ~1 month old; includes the 956-receiver cable . . . "Jim Hackett" wrote in message . net... I'm not entirely sure I want one but the price could be a determining factor. ;) "Lisa Simpson" wrote in message .. . If ya really want a 956, I have one for sale . . . wrote in message oups.com... Preselectors are OK ; they do block some stuff; - however, it comes at a price of a few less decibels of input from the antenna Buy the Cheaper MFJ unit; it will probably help the older tube sets. http://www.mfjenterprises.com/produc...prodid=MFJ-956 I had it , then upgraded to the 1046; - which I have now disconnected.. Nice, but not mandatory Jim Hackett wrote: I've been getting all kinds of advice from everyone wherever I posted this question and I really appreciate everyone's replies but I guess I wasn't too clear on my needs. I shouldn't have even mentioned the blowtorch as it really isn't a problem. IF I was at home during the day and wanted to listen to the shortwave, it would be a MAJOR problem. Alas, I work for a living and am not home during the day. I just mentioned that. Why, I'm not sure. What I was REALLY wanting to know was if a preselector would help with blocking spurious signals and images out of my older tube single conversion radios. Nothing to do with the blowtorch. He isn't a problem in the evening after they turn down the power. Again, I appreciate everyone's comments. I am learning more than I could have hoped to.:) |
Preselector
Seeee,how smart Lisa is?
cuhulin |
Preselector
Just made another attempt . . .
"Jim Hackett" wrote in message et... Ok, this isn't funny... I tried to reply to your email SEVERAL times now and EVERY time I tried Explorer crashes... "Lisa Simpson" wrote in message .. . done! "Jim Hackett" wrote in message . com... Lisa.... email me at jim_hack at yahoo.com "Lisa Simpson" wrote in message .. . Price just dropped to $40! : } ~1 month old; includes the 956-receiver cable . . . "Jim Hackett" wrote in message . net... I'm not entirely sure I want one but the price could be a determining factor. ;) "Lisa Simpson" wrote in message .. . If ya really want a 956, I have one for sale . . . wrote in message oups.com... Preselectors are OK ; they do block some stuff; - however, it comes at a price of a few less decibels of input from the antenna Buy the Cheaper MFJ unit; it will probably help the older tube sets. http://www.mfjenterprises.com/produc...prodid=MFJ-956 I had it , then upgraded to the 1046; - which I have now disconnected.. Nice, but not mandatory Jim Hackett wrote: I've been getting all kinds of advice from everyone wherever I posted this question and I really appreciate everyone's replies but I guess I wasn't too clear on my needs. I shouldn't have even mentioned the blowtorch as it really isn't a problem. IF I was at home during the day and wanted to listen to the shortwave, it would be a MAJOR problem. Alas, I work for a living and am not home during the day. I just mentioned that. Why, I'm not sure. What I was REALLY wanting to know was if a preselector would help with blocking spurious signals and images out of my older tube single conversion radios. Nothing to do with the blowtorch. He isn't a problem in the evening after they turn down the power. Again, I appreciate everyone's comments. I am learning more than I could have hoped to.:) |
Preselector
"Jim Hackett" wrote in message . com... [snip] What I was REALLY wanting to know was if a preselector would help with blocking spurious signals and images out of my older tube single conversion radios. [snip] I haven't used preselectors much, but I do have several 455 kc IF radios. The simplest S-38 types used a single tuned RF circuit at the antenna. As expected, these radios don't have much image rejection on SW. The S-40 types have much improved RF image rejection with a tuned antenna circuit and a tuned RF circuit. The SX-62 has two tuned RF circuits and a tuned antenna circuit, and is almost completely free of noticable images, although there are still some bad combinations of weak signals and strong signals 910 kc above. Going from one tuned RF/antenna circuit to two tuned circuits makes a big improvement. Going to a third tuned circuit certainly makes a noticable improvement, but the improvement is not as big as the second. So, I'd say the preselector should help, but it might not entirely supress the images depending how poorly your radio currently supresses images and on the signal strengths of the two signals. Frank Dresser |
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