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Need the part number on the other side. Post a pic of the other side. Looks like a Possible mid band board. Ken Pearce N4KCD Commerce Township, MI

Just looking at it, especially the LP filter, I'd say UHF...lots of strip line used Chris WB5ITT [email protected]> wrote:

I have this PA and it is labeled “100W PA”. However I cannot find the datasheet for the transistors. Motorola SRF2604. any ideas what the range for this is? drive needed?

Looked it up in a Nemal Electronics Catalog, and you remembered correctly, Jeff. Both cables are identical except for the jacket on RG393 is -70 to +200 degree C fluorinated ethylene propylene (FEP)

Hi Greg, Several things from the school of hard knocks... Recheck the length of your VB-35 matching section with at least several feet of 50 ohm coax between it and your measuring instrument as I

Such as? The RSS is pretty easy to navigate Chris WB5ITT [email protected]> wrote:

I second this. I had the same question about a month ago and ended up getting an HP8921A. It’s a good analyzer to learn on and does probably way more than you need.

For non digital stuff the HP/Agilent 8920 series.

The NanoVNA-V2 seems to handle doing the pass part pretty well. You're measuring return loss there, and it seems to handle that just fine. Only question I might se is if the frequency standard is

? It is an older variant of RG-393. I know it's 393 and I know it's 50 ohms. Apparently, I didn’t receive the original post, only your follow-up response. Questions: 1. What is the measured

Roger, In hopes of answering your original question, I got my hands on a DB212-2 originally on 37.7MHz and shortened the antennas and matching section for 6 meters. The 35 ohm matching section

I don't think you understood my question...I am asking about this specific cable. It is an older variant of RG-393. I know it's 393 and I know it's 50 ohms. I'm aware of every RF connector. I'm

Hello all, would anyone have any tuning information on the Varden duplexer 146-148mhz. I know its a long shot, but no searches on the web produced any results. These were made by Varden

Internet has all your info, its 50 ohm and would be great for jumpers between a repeater and other stuff. Connectors are available in many types.

AH6LE, Ken, I wonder if? some of the same UPS AT 220 MHz amps may show up at the next Rickreall hamfest, I missed the one at Rickreall this Feb.? but maybe the one in the fall could have some

Mine didn't have any fans and no? cases on any of these amps either but they were complete and the box was marked as working 220 MHZ ACSSB amplifiers. The amps all included the T/R switch, a low

Hi all, I recently just picked up an item from Facebook marketplace, taking the chance on it. It was a roll of unknown coax. The seller took pictures of the roll and the end of the cable. I counted

Hi Scott!? ?All the 901 stuff has been sold.? ?Thanks for asking. Craig AA6CG

I'm not reassigning the RS232 pins 2&3. Channel select uses AUXIO1 to AUXIO4, pins 20 to 23. Joe

Best of luck. tnx Mike / K5JR Alpharetta GA