WorldwideDX Amateur Radio Forums

Hey Robb,

There's a guy, Al / Art in this area running a 577 on a new 2970DX and he does sound really good...
I've wondered if it's the same element & audio amplification circuit sans echo as the 2018.
I have to believe it's the condenser element that's giving it such a smooth 'studio sound' while it still retains some crispness in the highs for added clarity without sounding harsh.

Do you know if they spec & sound the same without effects?

I've owned and used both. I think so . . .

__________________
BASE: Kenwood TS-2000 w/Alpha Delta DX-CC, Diamond X50A, Sirio SY27-4, and IMAX 2000.
MOBILE: Galaxy DX99V w/RF Limited CR-577 mic, Sirio Z-180. Yaesu FT-8800R & Diamond NR-770.
"...2 WR-011..."

Actually I just looked it up and the 577 is a ceramic element and I nelieve the 2018 Extreme is a condenser. I'n not certain about the 2018 having a condenser but I have an older version (with silly blue LEDs which illuminate when keyed, I had to cut one lead on each of them to shut them off) which looks identical except it's clear, and it has a condenser element and sounds rich on SSB.

A where the guy even takes it apart in his review mentions the boards are different between the 577 & the 2018.

I love the 2018 my friend Terry uses on his Cobra, when he turns off the damn echo it sounds quite a bit richer than Al's does with the 577.

The 2018 just seems to have that smooth, rich, crisp condenser sound.

LOL

I'll check out the RF Limited CR-577. Thanks for the suggestion. Right now I'm using a stock mic. Works, but not great. As for the base I have the MXL V67. I put everything together now all I have to do is get it hooked up the the base radio. I'm thinking of using a PTT switch mounted on the mic stand.

Terry

ok robb or any other audio geek out there i have a ranger 6900-25 10 meter 4 pin mic,i have a heil handy mic,with a 4 pin xlr pluging into the mic,so whats the wiring to the 4 pin from the heil 4 pin xlr by pin and color anyone know thanks jon..

Hey Jon/KW-35!
Well, that Ranger radio of yours uses the same wiring as a Cobra, Galaxy, Connex, Uniden, SuperStar, and Magnum. Dunno about the 4 pin Heil mic wiring. But I'll bet that there is a wiring diagram of it around somewhere on the internet. Never used a Heil in a mobile; but I can tell you that I prefer the CR-577 over every mobile mic I've had, heard, and used myself.

Brian/World Radio 264 uses a Heil 5(?) mic in his mobile.
Can't say that I was impressed with its performance.

I would give Bob Heil a call and see if he can email you the wiring diagram/schematic for that mic. Just need to know where the mic audio wire is, the ground wire, and the PTT. The mic's impedance should be OK too . . .

__________________
BASE: Kenwood TS-2000 w/Alpha Delta DX-CC, Diamond X50A, Sirio SY27-4, and IMAX 2000.
MOBILE: Galaxy DX99V w/RF Limited CR-577 mic, Sirio Z-180. Yaesu FT-8800R & Diamond NR-770.
"...2 WR-011..."