| Author |
Message |
    
billy
| | Posted on Monday, January 28, 2002 - 2:10 pm: | 
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what do they do? and do they really work? does copper sell them? do they make alot of diffrence? |
307
| | Posted on Monday, January 28, 2002 - 7:21 pm: |
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1) Add rejection to the radio so you don't hear others that may be close.
2) Yes they do.
3) No they don't sell them.
307 |
Vernonott
| | Posted on Monday, January 28, 2002 - 8:08 pm: |
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Down here in the sticks we call them signal choppers and they do work good especially if you have a radio with too much receive. |
bruce
| | Posted on Tuesday, January 29, 2002 - 5:29 am: |
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i have installed channel guards in both my 959 and my 2950 they are very good for adding selectivity to your radio. i did a rought test on the dx-959 with 2500UV one channel away you could hear the generator tone add the filter it took 40,000UV to do the same thing that is a major inprovement and i my case makes a huge diffrence in ch 20 when im talking to our morning group.
bruce |
billy
| | Posted on Tuesday, January 29, 2002 - 11:17 am: |
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i would be puting it in a vr-9000,are they fairly easy to install?and which one would i need? |
bruce
| | Posted on Tuesday, January 29, 2002 - 12:57 pm: |
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the seller will ask you what radio and will send instructions with the filter |
Bigbob
| | Posted on Tuesday, January 29, 2002 - 8:37 pm: |
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I had one installed in my P-400 it worked just as advertized,but it totaly disabled my noise blanker and was installed as per instructions.As I had 9 s-units of noise continuously the guard came out.By the way this was a cbc unit 7.8 meg.for same IF. |
bruce
| | Posted on Wednesday, January 30, 2002 - 7:21 am: |
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big bob some how it got between the blanker and the incomming signal a noise blanker will not work if you have provided selectivy at its input because you modify the rise/ fall time of the pluse. Now i have 5 of the filters in 5 diffrent radios now and they all work fine. |
jyd
| | Posted on Wednesday, January 30, 2002 - 7:28 pm: |
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thats right, |
Bigbob
| | Posted on Wednesday, January 30, 2002 - 10:29 pm: |
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I had it installed by a tech according to the instructions,he didn't think it would work he was right.I had him take it out cause I wouldn't get it back for a month otherwise.After the kids in the area grew up the bleed-over stopped until the next crop. jyd who are you?Bruce is a pretty smart guy ,he offers a lot of good sense info.I've been sitting here trying to decide what to say next.THATS RIGHT???!!!who are you?? |
jyd
| | Posted on Thursday, January 31, 2002 - 10:15 am: |
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what do you mean, who am i? i was agreeing with bruce.dont know about you,but i learn alot from bruce,307,181 and some of the rest of the boy on this forum.i am not a tech,but i have alot of people bring me their radios to work on.i do it for free just to learn.the only thing of mine that that has been fixed by a real tech was my palomar 250,cause i couldnt find out what was wrong with it.it had a short under the relay,and good ol 307 fixed it for me.i just think big bob got confused somewhere.good day |
Bigbob
| | Posted on Thursday, January 31, 2002 - 8:05 pm: |
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Cool,now I know who you are,in a manner of speaking. |
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