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+1 on this. Sunny Communications a.k.a. Used-Radios.com is a great company to deal with, and will get you what you need. Have dealt with them for years and spent more of my and corporate money than I probably should have with them. In many cases they are the only ones still sitting on product, even if slightly older gear from Motorola and other manufacturers. I also recently used them to prove a point to my current employer: pay full price direct to Motorola and wait six months to receive the item, buy from a local Motorola reseller for a little less and wait a few months, or go to Sunny Comm and buy current stock at one third the price as "new old stock" in their current stock, receiving the item a week later.

I'm in the process of going through a similar audit for my local mall.....as the noise floor continues to go higher and higher. This was after a corporate user was found using FRS/GMRS Midland T70 radios, when licensed spectrum was being used by the previous license holder, instead of my corporate users, as they heard radio traffic on those radios and channels/frequencies. In many areas, it is common for end users to not know the status of their licenses, and continue to use the radios and system after a license has expired. Part of that is the lack of enforcement and compliance inspections, poor record keeping, lazy radio shop workers, and other factors.

A quality duplexer is, or can be expensive, but it's what you want. Stay away from the 'flat pack' mobile devices. They do work, but these days you can never be sure of where and how they are built. You are looking for low insertion loss and at least 80dB (or more) isolation. The aforementioned (used) Cellwave duplexer mentioned by a previous poster looks like a good deal. Most new duplexers of that grade cost twice if not three times the price.

Celwave RFS Motorola UHF Duplexer 0185417U05 440-470 Mhz Quantar MTR2000 from Used-Radios.Com

Motorola repackaged a nice Celwave bandpass/band reject duplexer with most MTR2000's, although that was not the only possible "MTR2000 duplexer" that might have existed. If you have a link or more detailed description, it might help to figure out which one you're looking at. EMR makes some decent equipment, but the model you have listed is a basic "flatpack" compact mobile duplexer which is a Notch style - not the greatest duplexer for use in a high quality repeater install. Any duplexer requires tuning to operate on your exact frequency pairs. The Celwave MTR2000 duplexers sold by Sunny Communications (Used-Radios.com) for $525 include tuning. That duplexer is the real deal.

Another poster started a similar thread for KG-1000G and I thought it was such a great idea, I figured I'd start one for KG-935G. Some of this may apply to the KG-XS20G (manuals look very similar) or to other KGs. Here's one I'll start with (and it has much to do with the software): Scan Groups Preface: The KG-935G has 999 memory slots. Scanning channels is fairly slow. Priority Channel scan is a great idea, but implemented globally (vs within a scan-group). If you visit different areas frequently, its best to scan only the stuff near you. If you have less than 100 channels of interest in any given area (I have 25 at most in any geographic area), this may help you. Aside from where I live, I regularly visit 2 areas, and less frequently visit 2 others. Using the (less than great) Wouxun software: First: Renumber all scan groups to Group1=100-199, Group2=200-299, etc etc (I made Group10=001-099). This makes it such that any channel's first digit is the same as the scan group number. (out of the box, group 2 runs from 100, to 199. Not so intuitive later on...) Second, create a fake "Channel" at 100, 200, 300, 400, etc. Set it to no transmit, Scan Add = OFF, and give it a name for your areas of interest. For example, I have: 100="<HOME>" [settings: Rx 137.1, TX off, TX Power low, Mode narrow] 200="<DFW>" (Dallas) 300="<ETex>" (east Texas) 400= "<Hou>" (Houston) 800="<HotList" (stuff I might like to hear anywhere) several others. I left channels 1-99 factory stock. Finally, separate all of your regional channels under the appropriate bank. For example, I have Tyler GMRS repeater in 311, DallasFire at 255. The Northwest Houston GMRS repeater in 401. You could further subdivide these by band, service, interest (e.g. 200=DFWGMRS, 400=HouGMRS, 500 Hou-HAM, 600-HOUfire) so you only scan GMRS for your area, or all the HAMs in an area, or only Fire/Police in another. After doing that, it is a simple matter to use the radio's menu keyboard to set the scan group to match wherever you find yourself. And here's the true magic: Because you renumbered the groups, and stored a fake "label" channel at x00... if you ever forget, you can just key in "200", "400", etc, to see the channel group label ("<DFW>" & "<Hou>" in my case). Press UP Arrow to quickly find the channel you want, or set the scan group to #2 and you're scanning all the channels you saved for that "region" (Dallas on my radio). Now it's your turn: Have any tips/tricks for KG-935G (or very closely related) radios? Post them here!

The easiest path to getting a license is online studying. I really liked HamStudy. It’s like flash cards but with explanations of every concept. It emphasizes those questions you don’t get and leads you to other information. Although it could be used to simply study for the test it really allowed me to learn the concepts. It’s up to the user.

Did you ever wind up setting up your GMRS repeater?...Things in Dover seem to be pretty dead aside from Chik-fil-A and the car wash...

Yes that sounds like a good starting point with a splitter. I have had to make adapters as not all pin outputs are the same. So I will see where this goes. I will update this if I come up with something I like. Thanks WRNX920

Ah perfecto, perfecto, aqui tambien se habla Español... un saludo. G.

I used the ARRL General Class License Manual, it was def helpful to learn the basics, and then the test prep tools. Congratulations on the Tech!

Muchos hablamos español pero no en el forum ?

Another satisfied customer! ? Mr Natural Says:

Success in programming. Second cable was functional. Watch Amazon! Thanks to all of you who patiently offered help. 73

i would imagine a simple headphone splitter would work, if you have a recorder with a 3.5mm input; feed the other side of a splitter to an external speaker, and good to go. alternately, some fiddling in the settings could probably work to feed the audio into a pc and have it both record and play through the speakers. i currently have my two base radios fed into a y connector (meant as a splitter, but i'm using it to combine), which then feeds either a pair of computer speakers through their harness, or into a headphone amp and headphones (cuts the volume level for late night listening).

Shipping costs for antennas have become ridiculous. If it's beyond a certain length, even UPS Ground is a killer. I can't tell you what the magic length is, but I've dropped a few antennas from my "go-to" list due to shipping costs.

It looks like pin 14 might be a possibility. Would be simple enough to test, it's basically a switch (open collector). The 25Pin connector is generally used for connecting to a controller.

I'm surprised the house keeping department at a close by mall has been operating without a license on GMRS, they have a repeater so there is no question they aren't operating under FRS rules, since 10/2015. It was never renewed from what I can see. If you look under the "ADMIN" tab in section "Special Conditions" you can see the repeater channel they were licensed to use at the time. I hear them on the radio at times, also the mall security has used it to contact the house keeping staff as well. FRN: 0002748242 Callsign: KAB1523 https://wireless2.fcc.gov/UlsApp/UlsSearch/license.jsp?licKey=194751 https://wireless2.fcc.gov/UlsApp/UlsSearch/licenseAdminSum.jsp?licKey=194751 I wouldn't be shocked if there are other cases like this around the area.

I would do a 2-bay or 4-bay side by side folded dipole in the attic. https://www.ebay.com/itm/134023808353?epid=1941709490&hash=item1f34710561:g:yowAAOSwIytgUyhQ G.

I ordered a BCR-40U at end of December and received it on Feb 8th. I've been very happy with it as a GMRS repeater. I did buy the programming cable and software with it and its fairly straight forward. I order the 450-470Mhz instead of the 450-520Mhz version. Just in case I want to use it as a HAM UHF repeater or base one day. Regarding customer service. They seem to run strictly on a ticketing based system. with about 2 day response. I've tried calling to talk to tech support and can never get through. But during pre-sales I was able to talk to a sales guy. Dont remember his name. He was reasonably knowledgeable but did have to get some answers from some else for some of my questions.

Just passed the Ham Technician test 2/1/2022 KK7DJD