Congratulations Joe. You have a nice TT assortment! How about this? Put a switch in the line that feeds operating voltage to the digital display. Turn it on when you are tuning the band. Once on the
Sure! I did (and still do) that exact thing. I started with a ME machine and used several USB to serial adaptors. Set-up different COM port numbers for each radio and could even run several at one ti
Interesting! I have about a dozen different headsets around here from aircraft style to Koss stereo HiFi, various types from the FM broadcast station and two pairs of Trimm Professionals, the ones wi
Yep! That describes my hamfest Trimm's perfectly. Cheap wire band too. The cloth covered cord is very flexible and light weight though. That is nice. The foam pads I put on them probably cost more th
Probably a case of WAY too much headphone sensitivity. Many audio problems can be minimized by adjusting headphone sensitivity such that you have comfortable audio level in the 'phones with the volum
Or, replace the jumper with a RCA "Y" cable, 2 male connectors and one female. Now you can have the internal keyer and an external key/keyer in parallel and use either as desired. 73, -Lee
Not exactly sure what you mean by "swing" on AM. Assuming an adequate power supply, which the Ameritron is NOT, the Herc will deliver four times the AM carrier power up to it's PEP power rating. So a
Hi Clark, I have VERY LIMITED experience with the SPS-75. I just put it in service with my Herc II New Years day. So far no issue with switching noise BUT I have not tried it on all bands and in vari
Can't say why THRESHOLD was put there as a separate control but I like it that way. Although I do use the RF Gain often, I also use the AGC THRESHOLD. Here's my background. I have a fairly serious he
Hello Gary, I've been considering a hearing aid but my hearing problem is a tough one. I am deaf in my left ear and my right side is very poor. But the big problem is very loud tinnitus. In fact the
As I recall, a square wave is rich in odd order harmonics but weak in even order harmonics. In fact, a prefect square wave would have no even order harmonics ( I think ). I didn't do the math but try
With all this interesting discussion re ALC vs PSK-31 vs distortion, I thought I would re-post something I posted to the list five years ago. Although my test was using the Jupiter, I suspect that ma
Perhaps you need the jumper on the rear panel between keyer out and keyer in, or something like that. I don't remember the nomenclature exactly. 73, -LeeWA3FIY
The final transistors are MRF 477. RF Parts still has them available. One pair per customer limit. Kind of pricey but available. This is one radio you definitely want to protect with the Airpax circu