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Did you fix it?

Same issue on my 857D in locator FN35BQ. VA2XMP [email protected]> a écrit : -- *STEPHANE (VA2XMP)* CanWarn, CFARS, VA2GCU, *Winlink RMS: VA2XMP 24/7* *VOIP*: 5143169085 *Hamshack Hotline*:

Thanks Adrian, I'll chase down the relay problem tomorrow and post my results.

Yes relays/contacts etc are the most likely cause internal as you say. Sniffing the RF Volt level with a scope on TX path should identify the location. Good luck

As I stated in my original post the rx is okay on all bands.

Yes, it's not an antenna SWR problem. I'm pretty sure the problem is with the relays in the bandpass filter section of the PA. The radio hasn't been used much in the last few years and I assume the

You might learn something with your scope on the input to the driver. I don't remember the bandpass arrangement on these, but when I get a chance I will take a look. Perhaps some PIN diode bad. The

Check with swr meter fitted inline on output ? 73 vk4tux

My bad, the reading in service menu # 28 is 166. Before I pulled the radio out of service I verified there was no power output on 2 different watt meters.

Yes, it is connected to my service monitor with a good working wattmeter.? I'm reading about 100mW (+19dbm) on the bad bands and 100W + on the working bands. BTW: on the good bands the ALC is very

Before panic, Have you tried it into a known good dummy load? The ALC for SWR is developed in the output of the radio and a high SWR would do just what you are saying. It is possible since the lower

No output when I key the mic in service menu # 28 When I exited the service mode the radio put out full power on 160M the first time I keyed it. Couldn't get it to do it again....

The ALC is full bars on the non working bands

Are you on SSB? wrote:

Yes, the problem happens in all modes.

Is this on all modes, ie, ssb and cw/fm ? 73 vk4tux

Has anyone run into this before? My 857D has very low power output on 40,80 & 160M only. The radio draws very little current on the bands with the problem 100W on other bands. Rx okay on all bands Did

moved the radio, psu, tuner, meter about 8'... I wonder if the antenna as an issue or the radio having output issue... I will try with a DLoad this w-end. until then, RMS VA2XMP is down. Stec

Stef, By "moved my setup", do you mean you moved your rig around in the same area, moved everything including antennas, or what? You might try 40 metere into a dummy load to see if something you did

Thanks, I will verify and have a 2nd psu. I will test later this w-end. weird it's only on 40m so far. Stephane