There are some reported incidents regarding electrolytic capacitor failures. I have found these to be in the audio circuits where they are used as coupling capacitors between stages. In as much as
In general the Noise Blanker acts only on repetitive pulse noise. It does little to nothing on random noise. And if you are working a strong station, the NB should be off. Otherwise the peaks trigger
In addition to the sound card cable to the radio you will need an RS-232 to USB converter in order for the program to communicate with the radio. Be sure the RS-232 to USB converter uses the FTDI c
Mike: Your first sentence is confusing as there are 2 requirements for interfacing the radio to the computer. (a) the RS-232 to USB converter should be connected from the DB-9 connector on the back
I've found it is necessary to set the BFO oscillators first. A key is to adjust to the frequency and in the exact sequence as published. You may need to do this 3 or 4 times as I've found some intera
Put a small dummy load on the Paragon ANT connector. Connect the receive signal from your coax switch to the REC Ant and switch to that antenna with the slide switch on the back of the radio. Use the
I have purchased various size and configurations of switches from Mouser. You will need to know the size of the switch mounting hole, which is probably metric, and the pole configuration, which is p
C10 & C12 & C13 are each 4 - 20 pf. C16 is a 10 - 60. C18 is 1 - 6 pf. Hope this helps. 73 Bob, K4TAX On 4/29/2018 4:26 PM, Gary Hendricks wrote: My schematic is so blurry I can tell for sure what
The best thing is to pull the Low Pass Filter board and check all of the relays. This can be done with the relays on the board. The coils are wired parallel. Typical resistance for the pair of good
Regarding BFO trimmers and alignments. The trimmer values and locations are C10 & C12 & C13 are each 4 - 20 pf. C16 is a 10 - 60. C18 is 1 - 6 pf. As to alignment, I've found the procedure as publ
Here is about the most complete compilation of D-104 and related G stand information. http://www.qsl.net/wa2mzf/d104.html Historically the D-104 used a Rochelle salt crystal element. This element has
Barry et al; I agree. I have a Apple SmartPhone 5. My wife has a SmartPhone 5 plus a Kindle HD. Both are touch screen devices. I am reasonably fluent in computer operation. As to those "touch screen"
Ron et al; Yep, just the typical performance attained when one correctly uses Tentec radios. Even the older ones. 73 Bob, K4TAX I inherited an underused Delta II from a friend. It was checked by the
I'll put in my 2 coppers, old fashion ones at that. Being one of the senior citizens, licensed for 55+ years, and owner of several new radios, one yet to be delivered, and a few old ones and some rea
John et al: I've found many folks never really learned how to use the Tentec radios to the level of performance to which they are capable. Yes, the Omni VI with Opt 3 is still one of the best perform
I'm really glad I DO NOT participate in contests. It seems like a very stressful way to have fun and enjoy the hobby. It seems no different than the outcome of the recent NASCSR event this weekend. T
I tend to agree with Barry. The ATTN improves dynamic range while lowering RF Gain improves S/N ratio. I'm amazed at many local ops, not in a contest or strong signal area, which run with the ATTN on