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Chad, The easiest solution by far is an external power attenuator between the TPL amplifier and your transmitter to reduce power. This is a bolt on, or rather thread-on option that works

Remember guys that it's not just us hams that may be interfered with either. Up here in Oregon the 217 to 219 MHz range is heavily used by the Electric power company for Their Tier II capacty plus

Yes Mike pulled me head out of my rear end with his answer. The 120VAC coil would go between battery output and the repeater (either plug or hard wire config on your repeater), all it is doing is not

Does the repeater still work on AC supply? I ask because there's another failure condition which requires power cycling the RX and TX chassis's with a external FTM-400 control head. I had one on the

See post 211955, if you break the DC lines with a high current 120VAC relay then you don’t have to remove any fuse or worry about the charger inducing noise. The battery will charge when AC is

Jim, You might know off the top of your head, in reference to the F6001 (1 amp ) fuse. If you were to pull this fuse from the circuit, #1 it should "disconnect" the internal battery charger circuit

Hey joe thanks for that, I'll have my radio shop guy maybe take a look at it and see what wecan do. I don't dare go in there because I'm blind and I don't know what I'm looking for. Chad Nelson

Chad, From what I see in the manual, it says 1-6 watts input for 70-100 watts output. https://www.repeater-builder.com/other-mfrs/pdfs/tpl-pa6-1ae-1be-1fe.pdf My experience with various TPL amps is

Thanks for the insight on this and the detailed comparison. I ended up buying an HP8921A but will consider the Tektronix or Anritsu down the road as a more portable option. Thanks again.

Thank you.? I will have check that.? Not familiar with Motorola or most repeaters in general and have never had to program one to use a battery, but that explains why.? ?Just need to get my old

Hey joe, curious if I can drive that amp using a 5 W minimum from the repeater? Don't know how that tolerance is if it's one watt above the minimum of your level of the drive for the amp. My amp is

Chad, The 851's were originally designed for the overseas market where 25 watts was the max allowed in some countries. Kenwood later on started selling them here in the US. They are roughly? based on

I have had a Y400 with both modules for a few years now, and also have a Cellmaster MT8212B. For starters, the Y400 has Windows CE as its operating system. It is a touchscreen. I compared the Y400

I bought a couple of new TKR-851's from Kenwood when they were closing them out. That was 12 years ago. Hope that helps with the time line.

Check this group out: https://www.amateurradioalliance.com Just heard about it I don’t know if they’re any better than the ARRL but maybe they will give them a run for their money. Martin L.

Nothing new..in the early 80s we had offshore radio location under an experimental license in the UHF...10KW Pulsed wideband and center carrier of 439.200...wiped out the input of our local ATV rptr,

At 4/1/2025 02:14 PM, you wrote: You might be right. But have not heard of radars operating in 220 MHz, too low freq and need very large antennas. When I first started using 220 in the early 1980s

You might be right.? But have not heard of radars operating in 220 MHz, too low freq and need very large antennas.? Know there are radars that can be interfered with from our 440 MHz band, the

Geniuses. Give them an STA to operate IN THE BAND and expect them to not cause interference. Sounds like the federal government alright. Milair has their own band to operate in, why not do it

OK maybe slightly related if your repeater site is a popular SOTA location: <https://www.youtube.com/watch?v=1pERdo3uUos> I know the developer Ara N6ARA; will contact him about adding proper