We carry citizen band radio, marine radio, PMR-446, police scanners and all other communication products. A tailored mic covering only your vocal range is desirable in a noise canceling situation, otherwise I let the HiFi rule the day. KBC is a wholesale distributor of consumer electronics. Unfortunately it's that same wide audio frequency range that will pick up all the highs and low sounds in the background making it necessary to cut off some of that range in a noisy environment. Electret mics usually have a wider audio response by nature, therefore they sound more natural.
CRE 8900 STUDIO MIC MOD
If noise cancelling is an issue, I would first try other more robust electret mics and / or mod them to decrease their sensitivity to background noise. Power dynamic mics will make up for the impedance difference, but IMO that’s not the route I would pursue.
CRE 8900 STUDIO MIC PLUS
That would make sense to me because so many rigs are going that route nowadays, plus it would also explain why substituting a low impedance dynamic would sound inferior. EXPAND FREQUENCY CRE 8900 MODIFICATION CRE 8900 Frequency is divided into 2 band, band 1: 28.000-29.700Mhz band 2: 25.615-28.305MHz Default setting is band 1, frequency at 28.000-29.700MHz. On CB, you can cut the power down, and this would be legal.
As a ham radio, 10M works well, with the capability of all modes. With programming, you can set it up any way you like in the bands its capable of. It's a rare problem to encounter but I figured at least I'd post up the info.Click to expand.After much debate about that stock mic on other threads and forums it was determined that it is a high impedance electret condenser mic. The CRE 8900 is a DIN size 10 meter radio, capable of running from 12 to 10 meters. This solved the key up audio delay issue with the RD/CRE 8900 combo and I haven't had any issues since. I would recommend using some shrink tube on the resistor just in case to prevent issues since space is limited in many mics. I've included a picture of the road devil I wired for the cre 8900 and the resistor I installed in that microphone to solve the issue. Ready to plug and play (compatible with most major sound cards), it also includes a 15-foot XLR-1/8' (3.5mm) cable and 1/4' adapter. I ran into this problem a while back and eventually found a great thread online explaining that a 1k resistor from the ground to the audio would solve the problem and indeed it did. The 8900WD system makes it easy to set up sound anywhere thanks to its included microphone bag, microphone desk stand, and break-resistant holder with 3/8' thread adapter. The fix is to place a resistor from the audio to the ground and it can be done inside the microphone or inside the radio. Its definitely aimed more at that crowd than the operator who does 10/11/12. 25.870 MHz to 26.470 MHz is allocated for studio to transmitter links (or remote.
That being said - for the average CBer this radio is going to be much easier to just turn on and use than a CRE 8900 or a 2950DX. I've run into this issues specifically on the 2950DX and the CRE 8900 when running astatic power microphones. I think the CRE 8900 or a 2950DX is a better 'dual' option for that. This can be annoying as the first word or letter of many sentences will get cut off. "You key up the radio and everything works normally but when you begin talking sometimes there is a 1 second or so delay before your radio starts picking up the audio." With some radios when adding a power microphone you might encounter the following issue. This is something I thought I'd mention since it's come up a couple of times in emails I've received lately.