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I used my Rigol DSA-815TG. I used a directional coupler and went cavity by cavity and tuned each cavity for best return loss. I then set each cavity for the desired insertion loss. I coupled the 3

What did you use to tune or check the tuning of the duplexer?? Can you give a brief description?

This one appears to have the software preselector. I just tuned it again today just to rule it out and still is deaf.

Did you align the preselector? I had a poor performing VHF MTR2000 and this was the issue. Night and day performance difference after alignment. Do you have the physical preselector option or software

This ongoing discussion on setting repeater audio stimulated me to check out Kevin's AP-50 which had been sitting in the workshop for years without being put to use. There has been absolutely no

SCOM is working on a new updated controller that will allow a lot more features.? I still use the SCOM 7330 controllers I have.? so don't count them out

Looking to retire a couple of CAT-1000......just saw NHRC shut their doors, is ARCOM the only player now?

it is temperature controlled. it should kick on after it has run a bit. if not then you need to replace the temp sensor.? here is an article to help with some mods for it. Scroll Down to the section

I have a VHF MTR2000 with a Repeater Builder MMDVM board running DMR and analog. The duplexer is a Sinclair Q2330E that has about 1.3DB of IL and right around 105DB in the reject notches, I just tuned

No - Really.? There is little "need" of energy above 3khz for male voice inteligibility.? It goes a little higher to 4k for women. If you want singing or screaming of little children, you might want

Luckily Texas went 20kHz in 146-148 in the 80s...I was the one who made the motion at a TX VHF FM Society meeting in Arlington Texas.. and it passed with only one nay...we got the entire state moved

Hi Bob,? I agree a flat repeater is nice to listen to. I have many articles about that subject on the web site.? Are you in a populated area where there is a lot of congestion on the air? -- -

The easy standard I know:?? 2x(max audio freq + max dev) = bandwidth.? Although this isn't 100% accurate, it is the approximation the FCC accepts for determining occupied bandwidth for narrow FM.?

How / when does the fan normally operate in a DR-1X? Thanks! Jeff KC8VFN

Try the input first. Not sure if you have to enable simulcast for this input to work. One more point. You can use a transformer coupled input if you want to these pins because I assume that PL is the

Have you tried old dos version Have a blessed day/n4jem

Jim, Can you give me some guidance in setting the QUANTAR to "Simulcast" so that I can use Pin 9 & 34 TX in?? I have a R2 VHF with the wireline card.? I had the software read my QUANTAR and then

I think you're the first one here to state that... and it's true! Whether you pass unde-emphasized audio through the controller, or de-emph & pre-emph, you can get "flat audio" either way. In the

Yes Burt. The input is fed from a balanced source. An input value of -10dBm (@600 ohms, which is the SOURCE inpedence) will produce slightly less than maximum deviation. This is the input used for

I would look at the power source first.