JohnE
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Posts
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Everything posted by JohnE
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WOW, I read it wrong. nice score.
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who did your TCXO's ? those are good radios just have to check the freq now and then as they tend to drift a little. I know even w/properly aged crystals they needed to be checked annually. I have one in the shop I'm trying to get my boss to dive up. aslo trying to get my hand on these 3 MSF5000's I came across at a site I go to alot.
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call me when you get a chance I'll tune it for you. let me know if you need cable too.
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buying a good used GMRS repeater for neighborhood watch
JohnE replied to Logan5's topic in General Discussion
make sure you put a meter on that antenna from what I just read they seem to have a history of high SWR on 440 ham bands. I don't know if that will hold true on 460 though. just somthing to keep in mind http://www.eham.net/reviews/detail/3378 as a general rule I don't like to exceed 5% of forward power, I prefer to see less that one. -
buying a good used GMRS repeater for neighborhood watch
JohnE replied to Logan5's topic in General Discussion
I completly forgot about the 820. I haven't seen one of those in yrs. -
buying a good used GMRS repeater for neighborhood watch
JohnE replied to Logan5's topic in General Discussion
look on e-bay for gr300 repeater. there should be a few out thee since they are not narrowbandable. or get a pair of M120's gm300's or alike and youcan make a 2 wire cable to make them a repeater w/o hang time. as for scaleability and upgrading I really don't know what more you can do except for more power or better antenna. talk to Rich about linking machines it can bedone w/o too much effort. hope this point you in the right direction John -
From the album: rough coverage maps
ERS 650 current. -
these are general Transmit coverages
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From the album: rough coverage maps
RES 575 when complete. -
running very low power at this time RX side has been improved w/more coming. rough map of TX range. http://i1105.photobucket.com/albums/h358/erscom/GAP79M25W5dBd.jpg
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From the album: Toy's
back -
From the album: Toy's
front -
From the album: Toy's
pass/notch can -
From the album: Toy's
pre selector and pass can -
From the album: Toy's
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From the album: Toy's
isolators -
From the album: Toy's
pass/reject filter -
will do. some changes coming for both machines soon.
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