Would the same apply to an MSF2000 base station converted to a repeater? lh
On Sun, May 23, 2010 at 1:10 PM, Eric Lemmon <wb6...@verizon.net> wrote: > > > Has it been established whether the Micor station was originally built as a > repeater, or is it a base station that has been converted into a repeater? > A repeater station comes with a great deal of filter components added to > the > two interconnect boards, as well as extra shielding over the unified > chassis > shelves. A lot of strange things can happen if the shield plates are left > off, or are not fastened with all screws. > > 73, Eric Lemmon WB6FLY > > > -----Original Message----- > From: Repeater-Builder@yahoogroups.com<Repeater-Builder%40yahoogroups.com> > [mailto:Repeater-Builder@yahoogroups.com<Repeater-Builder%40yahoogroups.com>] > On Behalf Of Chuck Kelsey > Sent: Sunday, May 23, 2010 9:55 AM > To: Repeater-Builder@yahoogroups.com <Repeater-Builder%40yahoogroups.com> > Subject: Re: [Repeater-Builder] White Noise on Micor TX > > Tom, > > I believe he said that with the controller disconnected, and using local > PTT, it still does it. That should take the receiver completely out of the > equation, leaving only the exciter as the likely culprit. > > I'd suggested adding a resistor from ground to audio high on the exciter to > > see if that helps. It did for me on one Mastr II that I had. Might be > something similar on his Micor. Certainly a very simple thing to try. > > Bob already asked about the PL board as that's another possible candidate, > but was informed that there is a PL board installed already. > > Chuck > WB2EDV > > ----- Original Message ----- > From: "Thomas Oliver" <tsoli...@tir.com <tsoliver%40tir.com> <mailto: > tsoliver%40tir.com <tsoliver%2540tir.com>> > > To: <Repeater-Builder@yahoogroups.com <Repeater-Builder%40yahoogroups.com> > <mailto:Repeater-Builder%40yahoogroups.com<Repeater-Builder%2540yahoogroups.com>> > > > Sent: Sunday, May 23, 2010 12:21 PM > Subject: Re: [Repeater-Builder] White Noise on Micor TX > > > Has the noise been there all along? > > > > It may be just the nature of the beast. > > > > There is an article on the RB web site about modifying a mobile audio > > squelch board to work in a base/repeater station, one of the benifits to > > doing so is the better muting of audio from the receiver, this is > > because there are two shunt switches in the squelch chip and the mobile > > configuration uses both to mute the audio, in the repeater/base station > > configuration one of the shunt switches is used for station control like > > cos and not as affective at totally muting the audio. As designed the > > repeaters with their internal controller never had much hang time so it > > wasn't as noticeable. > > > > > > tom > > > > > > On 5/23/2010 12:10 AM, Tim - WD6AWP wrote: > >> I have a small amount white noise on the TX of a Micor repeater. It is > >> most noticeable in the hang time but it's not coming from the > controller. > > >> It's still there with the controller completely removed and pressing PTT > > >> on the station control card. It's more noticeable on some radios, > perhaps > > >> radios with higher audio frequency response. > >> > >> Anyone ever run into this before? > >> > >> Tim WD6AWP > > >
