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splitter ?
I have used Mini Circut Labs ZFSC-2-1 and a 2 port passive Stridsberg. I
obtained the MCL's at hamfests for $10 and the Stridsberg new Presently I am using a MCL PSC-3-1 to feed 3 receivers. I also got this at a hamfest. My receivers make up the nearly 5 db loss. Charlie "Drifter" wrote in message ... question. anyone recommend the rf-system-SP-1? or the mini-circuits- zsc-2-2? or, what are you using and why? looking for suggestions... thanks... Drifter... |
"Charles W. Hinkle" wrote: I have used Mini Circut Labs ZFSC-2-1 and a 2 port passive Stridsberg. I obtained the MCL's at hamfests for $10 and the Stridsberg new Presently I am using a MCL PSC-3-1 to feed 3 receivers. I also got this at a hamfest. My receivers make up the nearly 5 db loss. How do they make up the loss? Just curious. dxAce Michigan USA |
I have an excellent splitter for sale, please contact me at
I tried emailing you but your email bounced "Drifter" wrote in message ... question. anyone recommend the rf-system-SP-1? or the mini-circuits- zsc-2-2? or, what are you using and why? looking for suggestions... thanks... Drifter... |
In article ,
dxAce wrote: "Charles W. Hinkle" wrote: I have used Mini Circut Labs ZFSC-2-1 and a 2 port passive Stridsberg. I obtained the MCL's at hamfests for $10 and the Stridsberg new Presently I am using a MCL PSC-3-1 to feed 3 receivers. I also got this at a hamfest. My receivers make up the nearly 5 db loss. How do they make up the loss? Just curious. Maybe his radios have pre-amps like the Drakes. When you use a passive splitter the loss is 3dB power and 6dB voltage. I think most radio S meters are responding to the voltage number due to the nature of the AGC circuits. Someone can correct me on this. Should be easy enough to take a splitter in and out of line. -- Telamon Ventura, California |
Telamon wrote:
Maybe his radios have pre-amps like the Drakes. When you use a passive splitter the loss is 3dB power and 6dB voltage. I think most radio S meters are responding to the voltage number due to the nature of the AGC circuits. Someone can correct me on this. Should be easy enough to take a splitter in and out of line. -- Telamon Ventura, California ------------------------------------------------------------ Almost all modern receivers use teh AGC voltage for the "S-meter". And very few have any meaningfull calibration. Terry |
Telamon wrote: In article , dxAce wrote: "Charles W. Hinkle" wrote: I have used Mini Circut Labs ZFSC-2-1 and a 2 port passive Stridsberg. I obtained the MCL's at hamfests for $10 and the Stridsberg new Presently I am using a MCL PSC-3-1 to feed 3 receivers. I also got this at a hamfest. My receivers make up the nearly 5 db loss. How do they make up the loss? Just curious. Maybe his radios have pre-amps like the Drakes. When you use a passive splitter the loss is 3dB power and 6dB voltage. I think most radio S meters are responding to the voltage number due to the nature of the AGC circuits. Someone can correct me on this. Should be easy enough to take a splitter in and out of line. Correct me if I'm wrong... but would it not be better to run some pre-amplification ahead of the splitter rather than try to make up something that has already disappeared? Much the same in say VHF work where it is better to run a receive pre-amp right at the antenna versus running it at the receiver end of the coax? I'd never consider using a passive splitter here, and I rarely if ever engage the pre-amps on the receivers... no need. dxAce Michigan USA |
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On Sun, 17 Apr 2005 18:06:44 -0400, dxAce
wrote: Telamon wrote: In article , dxAce wrote: "Charles W. Hinkle" wrote: I have used Mini Circut Labs ZFSC-2-1 and a 2 port passive Stridsberg. I obtained the MCL's at hamfests for $10 and the Stridsberg new Presently I am using a MCL PSC-3-1 to feed 3 receivers. I also got this at a hamfest. My receivers make up the nearly 5 db loss. How do they make up the loss? Just curious. Maybe his radios have pre-amps like the Drakes. When you use a passive splitter the loss is 3dB power and 6dB voltage. I think most radio S meters are responding to the voltage number due to the nature of the AGC circuits. Someone can correct me on this. Should be easy enough to take a splitter in and out of line. Correct me if I'm wrong... but would it not be better to run some pre-amplification ahead of the splitter rather than try to make up something that has already disappeared? Much the same in say VHF work where it is better to run a receive pre-amp right at the antenna versus running it at the receiver end of the coax? I'd never consider using a passive splitter here, and I rarely if ever engage the pre-amps on the receivers... no need. dxAce Michigan USA Most outboard amplifiers cause more problems than they solve. Listen with your ears, not your S-Meter. |
David wrote: On Sun, 17 Apr 2005 18:06:44 -0400, dxAce wrote: Telamon wrote: In article , dxAce wrote: "Charles W. Hinkle" wrote: I have used Mini Circut Labs ZFSC-2-1 and a 2 port passive Stridsberg. I obtained the MCL's at hamfests for $10 and the Stridsberg new Presently I am using a MCL PSC-3-1 to feed 3 receivers. I also got this at a hamfest. My receivers make up the nearly 5 db loss. How do they make up the loss? Just curious. Maybe his radios have pre-amps like the Drakes. When you use a passive splitter the loss is 3dB power and 6dB voltage. I think most radio S meters are responding to the voltage number due to the nature of the AGC circuits. Someone can correct me on this. Should be easy enough to take a splitter in and out of line. Correct me if I'm wrong... but would it not be better to run some pre-amplification ahead of the splitter rather than try to make up something that has already disappeared? Much the same in say VHF work where it is better to run a receive pre-amp right at the antenna versus running it at the receiver end of the coax? I'd never consider using a passive splitter here, and I rarely if ever engage the pre-amps on the receivers... no need. dxAce Michigan USA Most outboard amplifiers cause more problems than they solve. Listen with your ears, not your S-Meter. I don't use any outboard amplification here 'tard boy, other than that which the Stridsberg uses to overcome the loss to support up to 4 receivers. I'm fairly certain I've done my fair share of listening, you just keep on trying to catch up. Please, get a clue, and try to get a grip. Continue to tote. dxAce Michigan USA |
dxAce wrote:
Correct me if I'm wrong... but would it not be better to run some pre-amplification ahead of the splitter rather than try to make up something that has already disappeared? Much the same in say VHF work where it is better to run a receive pre-amp right at the antenna versus running it at the receiver end of the coax? I'd never consider using a passive splitter here, and I rarely if ever engage the pre-amps on the receivers... no need. dxAce Michigan USA ------------------------------ The results might surprise you. When I received my zfsc-2-1 I expected the addional ~3.5dB loss to be an issue. But after much testing I found that it didn't make that much difference. For the most part any signal I could receive without the addtional loss was still present with the loss. I used a HP step atenuator to check this before going to the trouble of mounting the zfsc. I really expected to need a good low noise, high intercept, preamp before the splitter. If you have a "good enough" antenna the additional loss is of slight concern. Since I have all of my antennas, receivers, RF filters on a patch panel, it allows me to easily move the splitter out of line. I use BNC connectors because I was given a "boat load" of them and find them easier and faster to move then PL/SO-259 connectors. A friend wanted a similar setup and I gave him enough bulkhead mount "F" femalefemale to allow him to bring all of his antenas and both receivers to a panel. He found an "old" TV spliter that works very well to below the MW/BCB band. I bought a bag of over 500 for $1 at the local Goodwill store. Another advantage of a RF patch panel is I can connect my Pro2004 IF out to my R2000 so I can listen to SSB VHF/UFF comms. I do have to be very carefull to insure that I don't connect my ham gear to my receiver inputs. At them moment I have them feeding different RF patch panels and simply don't ever connect my ham gear to a receive antenna. I am considering switching all of my receive RF connectors to "F", at least at the patch panel. I have thought of using TNC but they are expensive and are easier to crossthread then "F". Terry |
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