开云体育

I'm still thinking some component is bad or perhaps a break somewhere in the board. There are just too many others who have the rig working for it not to work adequately. With your external amp, probe

Aaron, While my 49er has some transmitter problems, the receiver audio level is fine. I am moderately hard of hearing, so a low audio condition would effect me even more than a person with normal

Interesting....I thought it was my head cold that caused the low audio output. I built an audio signal tracer a while ago that uses a 386 and that output is great....going back to the bench to look at

Aaron, If I'm not mistaken isn't the 2SK30A "Q1" the preamp in the audio chain? When I looked over the circuit diagram then and looked up the 2SK30A, it's listed as a pre-amp.. Just thumbing around at

Evening all. I wanted to toss this out in order to get some feedback on the low audio/hiss issue from the 49-er. I put together a basic amplifier using a spare LM-386 chip. Once the amp was finished,

Hi, With the plethora of Ebay kit sources and problems with questionable parts quality from some, can anyone recommend a kit provider that you like? 73 Dave KF5OCP

Hi Frank, Yes I got the parts and used them.. Thanks very much.. As far as everything else I'm going to change parts one by one if needed.. Steve NS3L..

Steve: I replaced most of the Forty-9er components with my own parts. The parts in the kit just didn't appear to be of high quality. With exception of the D882, only a few of the supplied parts were

Steve, I just tried four different LM386 chips from a bunch I purchased from Tayda Electronics. Every one of them exhibited the same low audio qualities and excessive hiss coming from either

We had one member who thinks that his kit contained faulty/mis-labeled parts. If anyone else feels this way, please let me know the name of the supplier and I'll start a list of "questionable"

Right now I believe this is a bad component causing the problem. I have a signal generator that I was able to hear the tone clearly but very low, The DDS-VFO was only 10hz off in freq, I can fix that

Hi Steve, I experienced a similar low audio issue when I connected my radio for the first time. I could barely hear the stations and they sounded "far away". It all came down to the antenna. I found a

I've had mine going for almost a year now and I've heard people all over the US and even a few in Europe, and that's with a crap antenna, so I know that the receiver can hear signals. My farthest

Hi Steve. There's nothing worse than someone replying to a cry for help on a forum with something like "I have the exact same problem... were you able to find a solution(?)". This is especially true

Thanks Jack, I pulled the LM386 and checked all the connections then reseated the chip.. As a backup I just ordered a couple and then I'll know if that is part of this. I don't know about the NE612

Well, it was just a thought. I checked my 49-er and there is no signal affect when I get near or touch CP2. Have you changed the LM386 to see if it's bad? ALso, have you done continuity checks to the

Jack, I checked CP2, and all the others and their installed correctly.. Neg side to the hatching marks in all cases (right ones too). The level remains at one level..Just enough to hear the SG tone.

CP2 is part of the audio amp. Is there any chance you have the polarity reversed? Jack, W8TEE To: SoftwareControlledHamRadio@... Sent: Saturday, April 23, 2016 12:47 PM Subject:

This is a corrected message.. Disregard my previous... Hi all, After connecting and powering up the 49'r and dds-vfo combo I've discovered a problem... Been checking out an issue with very low audio

No, I followed what you were saying, but the 12V does stress the voltage regulators that are on board. Yeah, memorizing is a lot different than learning. Jack, W8TEE To: