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"What I'm running off of AC in my cabinet is five AC powered cooling fans, the power supply, and a TNC, which could very well run off DC as well." Okay, I understand. Mick - W7CAT

If the Stationmaster is cut for a higher frequency you will have uptilt. I had a long conversation with an engineer at Commander Technologies about this and they cut the antenna for a lower frequency

Chad Nelson WI9HF/WRPL979 Janesville Wisconsin 608-754-8671 Send from my spectrum iPhone 16.

Second Mixer crystal...not the main freq. one. I had that problem. Got the crystals form China. 73 John VE3AMZ Sent: Monday, April 28, 2025 7:28 AM To: [email protected] Subject: Re:

Hammond Mfg. of Guelph Ontario make several versions of rack mount power bars. They would be available through the regular distributors. Fred Hammond VE3HC (SK) was the inventor of the power bar

Hey Robin, Did you measure RL without the correct radials? (That could make a difference). Also, might still be useful at 147, as being lower in frequency, you will get some

I have what appears to be a Stationmaster type VHF antenna available. It shows a -20dB return loss at 152 MHz., so it's not cut for the ham band. The return loss at 146 MHz. is only~ -6dB. The extrior

He is saying he gets a valid COS signal, but that IS indeed a common failure. Andy [email protected]> wrote:

Yes, it is horizontal to mount to the rack rails. I have been following this power strip subject. A couple of things related to this, yes your power switch is broken. I prefer not to have a power

Is that a horizontal mounted strip for 19 inch rack?

That's correct in theory, but a problem one would likely run into in the real world is that most run-of-the-mill pads aren't exactly 50 ohms. The result of putting the pad in line is that your S11

Take a look at the Tripplite RS-1215-20. Been using it for many repeater projects, they work very well.

For what it is worth, the frequency ranges for the GP300 (and P110) radios are as follows: VHF 136-155MHz 146-174MHz UHF 403-433MHz 438-470MHz 465-496Mhz 490-520Mhz Using shift during frequency

RX crystal needs to be replaced. Had the same issue with other GM300. https://batboard.batlabs.com/viewtopic.php?t=103253 Tony

You shouldn't use an attenuator pad with a VNA.? If you do - at least two things happen, depending on where your calibration plane exists: 1 - When measuring return loss (match), the RL value will

Current M dealer price is $1,950, VHF or UHF same price.

On Mon, Apr 28, 2025, 4:41?AM Part 15 Engineer <kc8gpd@...> wrote: > After hours of going at it. I have come to this point. I think it looks > alot better, but still probably can be improved.

After hours of going at it. I have come to this point. I think it looks alot better, but still probably can be improved. 2 things. I can't set the nvna for more than 1024 points and the point rbw

The rx audio comes from the sc-50 along with cos…I just find it odd that this is the exact same failure and nearly the same time frame. The jumper ju551 in the gm300 is set for discriminator audio

Anything else on the Disc line other than the SC50? Does the audio into the controller come from the SC50 or DISC audio out? You have to consider both input impedances in parallel if it is ... but