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#1
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Hi again Guys,
In conjunction with my previous query (thanks so much too for the emails guys, the info provided is proving extremely useful in terms of which radio to purchase) the question of WHICH antenna to hook up to the Kaito (IF that is the unit I decide upon) is somewhat baffling considering the huge variety of antennas out there. At the moment, I have my heart set on either an external outdoor wire antenna or an active antenna to give me greater capabilities in terms of listening to more obscure broadcasts. Now what I am needing to know is if any of you guys have had any experience with the McKay Dymek, Datong or MFJ range of antennas? In particular, I am very much considering the MFJ-1020B Active Antenna, as from reports I have read, this particular model is not only very reliable in terms of build quality, but also because it has a range of between 300KHz to 30MHz, which if I am correct, would allow me access to international short-wave as well as HF bands. Please correct me if I am incorrect on this assumption guys. Also, would anyone have any info on whether this particular model unit would work as an amp/pre-selector too? Thanks so much everyone for your time and advice, Brian Anasta |
#2
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On Aug 3, 2:38*am, Brian Anasta wrote:
- Hi again Guys, - - In conjunction with my previous query (thanks so much too for the - emails guys, the info provided is proving extremely useful in terms of - which radio to purchase) the question of WHICH antenna to hook up to - the Kaito (IF that is the unit I decide upon) is somewhat baffling - considering the huge variety of antennas out there. BA - Most 'portable' AM/FM Shortwave Radios can't take to big {long} of an Antenna or Active {Amplified} Antennas. - At the moment, I - have my heart set on either an external outdoor wire antenna or an - active antenna to give me greater capabilities in terms of listening - to more obscure broadcasts. BA - For 'portable' AM/FM Shortwave Radios a Moderate Length Antenna* is generally advised. * Note Moderate Length Antenna is around a 24~36 Foot piece of Wire. + Ground Rod + Matching Transformer [MLB] + Coax Cable feed-in-line - Now what I am needing to know is if any of - you guys have had any experience with the McKay Dymek, Datong or MFJ - range of antennas? In particular, - I am very much considering the MFJ-1020B Active Antenna, as from reports I have read, this particular model is not only very reliable in terms of build quality, but also because it has a range of between 300KHz to 30MHz, which if I am correct, would allow me access to international short-wave as well as HF bands. Please correct me if I am incorrect on this assumption guys. Also, would anyone have any info on whether this particular model unit would work as an amp/pre-selector too? Thanks so much everyone for your time and advice, Brian Anasta BA, Versus the MFJ-1020B Active Antenna -consider- http://universal-radio.com/catalog/sw_ant/1131.html LF Engineering H800 Skymatch Active Antenna -why- An "Outside/Outdoor" Active Antenna is generally preferred to an 'Indoor' Active Antenna because in most locations most of the time it will provide clearer strong signals with less noise. -result- Better Signal-to-Noise (S/N) Ratio from the Antenna Output to the Radio's Antenna Input. Review : LF Engineering H800 Skymatch Active Antenna http://brneurosci.org/antenna-lfh800.html LF Engineering H-800 Skymatch Active Antenna http://www.grove-ent.com/ANT15.html Covers : Longwave, AM/Mediumwave/BCB and Shortwave Bands http://www.lfengineering.com/products.htm Range : 10 kHz through 50 MHz http://www.lfengineering.com/pdf/H800inst.pdf |
#3
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On Aug 3, 5:27*pm, SC Dxing wrote:
This sounds bland but the reason there are so many antenna solutions is because in most cases, the antenna isn't the problem. It's interference or obstacles or the radio itself. An example is the longer the antenna, it will both pick up signals better and all kinds of noise better also. *Placement of the radio and antenna is the key. Sometimes running a insulated coax cable from your radio to an antenna outside might help. Experiment like crazy. I found the best solution for me is to simply run about 30 foot of cable speaker wire out of my door across the yard. Cheers!! That is basically the same thing I did. I used some type of Belden low loss coax. Ran it roughly 40-45ft. away from the house. Something else that will help along with what they have already told you Brian, is try to get that antenna as high as you can. That solved the only problem that I originally had with my sloper, once I got it pretty high, all interference went away. Good luck and have fun experimenting. |
#4
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On Aug 4, 7:30*pm, Bushcraftgregg wrote:
That is basically the same thing I did. I used some type of Belden low loss coax. Ran it roughly 40-45ft. away from the house. Something else that will help along with what they have already told you Brian, is try to get that antenna as high as you can. That solved the only problem that I originally had with my sloper, once I got it pretty high, all interference went away. Good luck and have fun experimenting. ******* Errrrrr Greg, you may want to check out our Brians previous posts in SCT and knives. He's a real slippery character, but a lot of fun. ;-) |
#5
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On Aug 4, 4:39 am, "~ RHF" wrote:
BA - Most 'portable' AM/FM Shortwave Radios can't take to big {long} of an Antenna or Active {Amplified} Antennas. Versus the MFJ-1020B Active Antenna -consider-http://universal-radio.com/catalog/sw_ant/1131.html LF Engineering H800 Skymatch Active Antenna -why- An "Outside/Outdoor" Active Antenna is generally preferred to an 'Indoor' Active Antenna because in most locations most of the time it will provide clearer strong signals with less noise. -result- Better Signal-to-Noise (S/N) Ratio from the Antenna Output to the Radio's Antenna Input. Dear RHF, SC Dxing and Bushcraftgregg, Guys thank you so much for the extensive information you have provided. I have spent a good part of this afternoon reading over your posts several times to try and get my head around everything you have all mentioned. RHF, I took particular notice of your comments, particularly as you gave a wonderful overview and list of links pertaining to both the pros and cons of external wire antennas as well as the active antenna variety. Now, after checking on several of the links provided, AS well as grabbing myself a couple of books from the local library (the superb Shortwave Listening Guide Book, authored by Harry Helms is a must have for beginners I believe) this morning, I have several queries. Firstly, I am concerned that if I settle on the active antenna, AM I at risk of picking up much more noise and interference? Secondly, if I instead choose the external wire type of antenna, isn't there a much greater chance of problems and issues due to extensive overhead high voltage powerlines in my area? The more I read, the more confused I become....arghhhh heh. Thanks so much guys and sorry for being a painful newbie at all this, Brian Anasta |
#6
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Brian Anasta wrote:
On Aug 4, 4:39 am, "~ RHF" wrote: BA - Most 'portable' AM/FM Shortwave Radios can't take to big {long} of an Antenna or Active {Amplified} Antennas. Versus the MFJ-1020B Active Antenna -consider-http://universal-radio.com/catalog/sw_ant/1131.html LF Engineering H800 Skymatch Active Antenna -why- An "Outside/Outdoor" Active Antenna is generally preferred to an 'Indoor' Active Antenna because in most locations most of the time it will provide clearer strong signals with less noise. -result- Better Signal-to-Noise (S/N) Ratio from the Antenna Output to the Radio's Antenna Input. Dear RHF, SC Dxing and Bushcraftgregg, Guys thank you so much for the extensive information you have provided. I have spent a good part of this afternoon reading over your posts several times to try and get my head around everything you have all mentioned. RHF, I took particular notice of your comments, particularly as you gave a wonderful overview and list of links pertaining to both the pros and cons of external wire antennas as well as the active antenna variety. Now, after checking on several of the links provided, AS well as grabbing myself a couple of books from the local library (the superb Shortwave Listening Guide Book, authored by Harry Helms is a must have for beginners I believe) this morning, I have several queries. Firstly, I am concerned that if I settle on the active antenna, AM I at risk of picking up much more noise and interference? Secondly, if I instead choose the external wire type of antenna, isn't there a much greater chance of problems and issues due to extensive overhead high voltage powerlines in my area? The more I read, the more confused I become....arghhhh heh. Thanks so much guys and sorry for being a painful newbie at all this, Brian Anasta Too right Brian. I'm considering dragging my old Yaesu FRG7700 out of mothballs and firing it up with a longwire connected. I have a long block of land away from those nasty power lines and will get a really good signal here. I used to use a Yaesu FRA7700 active antenna with it. It was OK on the higher frequency bands but lacked a bit at the lower end of the spectrum. It probably needs retrimming. I wouldn't mind getting hold of a Yaesu FRG8800 in good condition as they can interface with my computer here. Krypsis |
#7
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On Aug 4, 9:30 pm, Krypsis wrote:
Too right Brian. I'm considering dragging my old Yaesu FRG7700 out of mothballs and firing it up with a longwire connected. I have a long block of land away from those nasty power lines and will get a really good signal here. I used to use a Yaesu FRA7700 active antenna with it. It was OK on the higher frequency bands but lacked a bit at the lower end of the spectrum. It probably needs retrimming. I wouldn't mind getting hold of a Yaesu FRG8800 in good condition as they can interface with my computer here. Krypsis Hey Krypsis, I must admit I don't know too much about the Yaesu models, although on one website I found it was mentioned this brand is usually very good in terms of SSB reception, due in large to the stock filters. Just wondering Krypsis, do you ever experience any problems with the RX on the low bands on the 7700? I have heard that can be an issue with the Yaesu models, but as you sorta mentioned, there will probably be fewer issues with the later model FRG8800. Kind regards, Brian |
#8
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Bushcraftgregg wrote:
On Aug 3, 5:27 pm, SC Dxing wrote: This sounds bland but the reason there are so many antenna solutions is because in most cases, the antenna isn't the problem. It's interference or obstacles or the radio itself. An example is the longer the antenna, it will both pick up signals better and all kinds of noise better also. Placement of the radio and antenna is the key. Sometimes running a insulated coax cable from your radio to an antenna outside might help. Experiment like crazy. I found the best solution for me is to simply run about 30 foot of cable speaker wire out of my door across the yard. Cheers!! That is basically the same thing I did. I used some type of Belden low loss coax. Ran it roughly 40-45ft. away from the house. Something else that will help along with what they have already told you Brian, is try to get that antenna as high as you can. That solved the only problem that I originally had with my sloper, once I got it pretty high, all interference went away. Good luck and have fun experimenting. You need a transformer to match the High Z random wire to the Low Z cable at most frequencies. Otherwise you will lose most of the signal (which may reduce overloading a cheap receiver). It's been my experience that a good antenna needs a good radio. |
#9
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Brian Anasta wrote:
On Aug 4, 4:39 am, "~ RHF" wrote: BA - Most 'portable' AM/FM Shortwave Radios can't take to big {long} of an Antenna or Active {Amplified} Antennas. Versus the MFJ-1020B Active Antenna -consider-http://universal-radio.com/catalog/sw_ant/1131.html LF Engineering H800 Skymatch Active Antenna -why- An "Outside/Outdoor" Active Antenna is generally preferred to an 'Indoor' Active Antenna because in most locations most of the time it will provide clearer strong signals with less noise. -result- Better Signal-to-Noise (S/N) Ratio from the Antenna Output to the Radio's Antenna Input. Dear RHF, SC Dxing and Bushcraftgregg, Guys thank you so much for the extensive information you have provided. I have spent a good part of this afternoon reading over your posts several times to try and get my head around everything you have all mentioned. RHF, I took particular notice of your comments, particularly as you gave a wonderful overview and list of links pertaining to both the pros and cons of external wire antennas as well as the active antenna variety. Now, after checking on several of the links provided, AS well as grabbing myself a couple of books from the local library (the superb Shortwave Listening Guide Book, authored by Harry Helms is a must have for beginners I believe) this morning, I have several queries. Firstly, I am concerned that if I settle on the active antenna, AM I at risk of picking up much more noise and interference? Secondly, if I instead choose the external wire type of antenna, isn't there a much greater chance of problems and issues due to extensive overhead high voltage powerlines in my area? The more I read, the more confused I become....arghhhh heh. Thanks so much guys and sorry for being a painful newbie at all this, Brian Anasta My MFJ-1024 works very well. I understand they will overload in Europe and the N. Am. east, but way out west this thing works great! |
#10
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On Aug 4, 3:19*am, Brian Anasta wrote:
On Aug 4, 4:39 am, "~ RHF" wrote: BA - Most 'portable' AM/FM Shortwave Radios can't take to big {long} of an Antenna or Active {Amplified} Antennas. Versus the MFJ-1020B Active Antenna -consider-http://universal-radio.com/catalog/sw_ant/1131.html LF Engineering H800 Skymatch Active Antenna -why- An "Outside/Outdoor" Active Antenna is generally preferred to an 'Indoor' Active Antenna because in most locations most of the time it will provide clearer strong signals with less noise. -result- Better Signal-to-Noise (S/N) Ratio from the Antenna Output to the Radio's Antenna Input. - Dear RHF, SC Dxing and Bushcraftgregg, - - Guys thank you so much for the extensive information you have - provided. I have spent a good part of this afternoon reading over your - posts several times to try and get my head around everything you have - all mentioned. RHF, I took particular notice of your comments, - particularly as you gave a wonderful overview and list of links - pertaining to both the pros and cons of external wire antennas as well - as the active antenna variety. Now, after checking on several of the - links provided, AS well as grabbing myself a couple of books from the - local library (the superb Shortwave Listening Guide Book, authored by - Harry Helms is a must have for beginners I believe) this morning, I - have several queries. - Firstly, I am concerned that if I settle on the - active antenna, AM I at risk of picking up much more noise and - interference? Yes Active Antennas can be Noisy so you usually have to do two things to get them to preform well : 1 - Placement / Location a - Find a Location above the Peak of your Roof by 5~10 Feet that places the Vertical Antenna Element away from the envelop of Noise that may surround your House. b - Find a Location in your Backyard 15~25 Feet away from the envelop of Noise that may surround your House. 2 - Grounding - Most Active Antenna need to be well Grounded via the Support and Coax Cables using a 21 Foot piece of free-stand 'metal' Top-Rail and an 8 Foot Ground Rod at its Base http://groups.google.com/group/rec.r...d9abcf73ef3971 - Secondly, if *I instead choose the external wire type of - antenna, isn't there a much greater chance of problems and issues due - to extensive overhead high voltage powerlines in my area? The more I - read, the more confused I become....arghhhh heh. Yes there is the 'potential' for Power Line Noise pick-up with an backyard Random Wire Antenna. The Far-End-Fed Shortwave Listener's (SWLs) Inverted "L" Antenna http://groups.google.com/group/rec.r...cfc6b9cb2447c0 1 - Inverted "L" Antenna 2 - Ground Rod at the base of the Antenna 3 - Matching Transformer at the base of the Antenna 4 - Coax Cable feed-in-line from the base of the Antenna into the Radio Shack hope this helps - iane ~ RHF |
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