I have to agree on the little Link-Comm RLC-MOT board. You give it +12VDC, discriminator audio, and you get out a nice high or low-going COS signal and gated audio, along with that great MICOR strong/weak signal squelch action switching. It's just so convenient and works so well, I just automatically plan to add one to just about any repeater/link needing a good COS signal and gate audio (like for some of the ACC controllers). It comes with double-sided sticky tape and will fit just about anywhere even if you don't have much room available.
I wonder if anyone has added one of the RLC-MOT boards to any of their ICOM IC-900 series band modules or used one with any of the Kenwood radios and a Doug Hall RBI-1 interface? If you have, I'd be interested to know how and where you used one, and how you liked it. I have both some 6 and 10-Meter ICOM band modules and an RBI-1 with Kenwood radios for 2M, 220, 440 and 1200 MHz. Larry K7LJ Original Message: ----------------- From: Kevin Custer [EMAIL PROTECTED] Date: Wed, 02 Jun 2004 22:21:49 -0400 To: [email protected] Subject: Re: [Repeater-Builder] SQ-1000 vs RLC-MOT Squelch Hi, The Link Comm unit is much smaller and much better suited for installation in other than Micor equipment. Of course, this 'convenience' comes at a price, but if you aren't cramped for space there is no advantage of the Link Comm unit since it is solely based on the Micor Squelch Chip. The Link Comm product is, in my opinion, the best choice for adding a quality carrier squelch to any radio lacking a good one, at this time. It is a very popular upgrade in our Mastr II, MVP and Mitrek mobile conversions. I have used every replica squelch board available today, including the SQ-1000. The SQ-1000 is the better choice of all of the replica boards, but like all of them, it's digital and it operates like it's digital. These replica boards use processors that aren't fast enough, in my opinion, for analogue like squelch action. Another problem is some of these boards suffer from insufficient high pass filtering and voice talk off, along with other issues, can really become a problem. The SQ-1000 has sufficient HP filtering, but I just don't care for a digitally derived carrier squelch. Scott Zimmerman and I have been working on an analogue replica of the Micor Squelch for some time (several years). Since the Micor Squelch chip is still available we haven't spent any serious time perfecting it. Some day the Micor Squelch chip will be hard to come by, and we'll dig out our version of this circuit, perfect it, and turn it into a product. Kevin Custer Thomas Staley Jr. wrote: > What do you think of the RLC-MOT vs getting a used Micor audio card? > > > Kevin Custer wrote: > >>Thomas Staley Jr. wrote: >> >> >> >>>Any thoughts on the two squelch cards? I'm looking for the dual squelch >>>action of the Micor squelch circuit. >>> >>> >> >>At this point in the game, there is no substitute or equivalent to the >>Micor squelch chip, in my opinion. >>The RLC-MOT actually uses the Motorola Micor chip, so it would be the >>one of choice between your two suggestions... >> >>Kevin Custer >> -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web.com/ . Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
