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Oh and it has 1ma resolution which is hand for low current devices... http://www.extech.com/products/380950

I've been using the Extech 380950 (80amp AC/DC) for over 10 years now and been very happy with it. It most certainly is not as rugged as a Fluke but is great for measuring DC and AC current in tight

Glenn, I am in total agreement. Also of note is that any implementation must also be in compliance with local codes. The ARRL book shows more of how NOT to do things than it does how to do things

Another source of information is MIL-HDBK-419. This is a source of information for R-56 and is available free on the net. FAA STD-019 is another very good source (when was the last time you saw an FAA

Hi Skyler, What the picture inside the cavity does not show is the height above the cavity wall the probe assy is. For the probe cavities, about 15mm worked for me. DO NOT get the probes too close to

Skyler The cutting chart for the cables is at the bottom of the Cactus publication. Build the T-1507 duplexers and you will be one happy person and the site owner will be happy too. Having the

I get to wear the idiot star on my forehead tonight! Although I have the original Motorola documentation – the information you need is at the bottom of the Cactus-Intertie attachment on the email I

Thanks Bill, yeah I totally realized they were bandpass only, I just thought I would give a shout out here to see if they are easily convertible into notch. I have about 15 bandpass filters in my

Hi Skyler I think we have talked on the radio – if you’re the same Skyler from Denver Colorado – you surprise me that you don’t recognize what you have. You are a really good mountain top

Thanks Wayne for the info!!! Skyler,

Skyler, Putting the BPF on each side of the flat pack should work out ok. Try it and test it out. We have a 6 cavity Wacom duplexer on Badger that has BPF cans on each side of the 4 cavity BpBr

Cliff, I moved four of these duplexers from the 160 MHz area down into the ham band.? The manual I found in one of them is here:

I see LUY attached a picture of handmade wire loops with spacers also. Very good! Again, all the data you should need, Skyler!

Hey Skyler, You absolutely can. There's no real harm in doing it. Here are some considerations: Two true Bandpass resonators flanking your flatpack will give the total system *better* out of band

If you are putting up a repeater, and you own the site (house site or something), you could use just two of them and do split antennas. 20-30' of vertical separation is enough in that case. You should

Skyler, Part of the fun of armature radio is DIY. Do a little building and make it work. See the probes attached. Wayne

One of the primary causes of switcher failures is line transients. Linear PSUs have built-in isolation (transformer) which switchers do not have. While degraded components, excessive load,

In General, is there any theory on failure modes on switchers? Filter cap ESR degrades, duty cycle increases to keep up with current drain, transformer saturates, overheats and fails? Thoughts? I have

I currently use a Fluke AC/DC amp clamp and a Craftsman ACD/DC clamp. The craftsman measures down to the microamps, and works well. That external clamp sounds interesting Thanks and 73 Dean wrote:

I agree that it isn’t worth my time to convert a bandpass into a BpBr out of these but I thought i would see if anyone has. Is it acceptable to use a Mobile flat pack duplexer and then attach