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wrote: rated at 60 watts max PEP, 30 watts CW/AM/FM. The greater the mismatch you have, the lower the amount of power it will handle at that match. What is the antenna you are matching the Z11 to at

The fact that the toroids are wound with the same wire but have larger cores is interesting, I tend to doubt it has much to do with a higher rating power wise other than working better under a poorer

I have not done the mod so far for the reason brought up in last message (below). I also have another radio. D you loss the "band scan'? It is my understanding that once you modify the radio from

Is the capacitor voltage rating and physical size the same in both tuners? Are the relays identical? In addition to worry about saturation of the cores on power peaks, one would have to consider

I do not have the Z-11, but I think the problem may be if the load VSWR is close to the max specified (I am not sure what it is off hand), then the tuner will work harder and the toroid might get hot.

I bet the tuners are rated at maximum load or close to it. Z11 is rated at 60 watts max PEP, 30 watts CW/AM/FM. The greater the mismatch you have, the lower the amount of power it will handle at that

HFpack, the HF Portable Group, now uses Channel 371 (5371.5 USB) daily for calling and has a sked every evening at 8:50PM Local Time in all USA time zones. Everyone is welcome to participate. Many

Now I had a closer look on the toroids: Z-11: T50-2 AL49, diameter 12,7 mm RT-11: T68-2 AL57, diameter 17,5mm height and number of windings is the same. 73 Martin

The toroids are only slightly bigger in core size,( about 3mm in diameter) the wire is the same 24#. The boards are identical and the bigger toroids fit in the same places. Martin

Hi, I have an LDG Z-11 Auto-Tuner, which is rated to 60W max. I wanted to bulid the RT-11 Tuner which is rated until 125W for the FT-897. When unpacking the kit i realized, that the two tuners are

G'day to you, Brian, Okay, I am familiar with that device, but did not recognize the name. I have heard reports that it works very well in combination with the Heil HC type mike cartridges. Thanks for

I think the Joey is the only QRP "back of the rig" antenna made in Oz - but I would like to be corrected if its not the case. From my experience on air Nico, QRP'ers are few and far between downunder,

Does anyone know if there is a manufacturer for a portable plug in antenna or the like for the ft817 in Australia. The only one that comes close is the Joey Outbacker. What is the experience for qrp

It is my understanding that once you modify the radio from factory settings, you lose country-specific information, such as band plans, auto-repeater +/- and offset. The radio simply becomes a general

I have used my IC706 at reduced power ( 50 watts ) on occasion with no overheating on SSB on 20 meters - is the toroid bigger in wire size or overall size - core and all ? I use it regularly on the

The standard MH-31 mike Todd - the only mod was installing the OBP in the mike itself. I was a bit hairy about installing it in the rig just in case I needed to operate without the OBP on - I'd heard

Hi Mike, The VPL-1 cable that programs the early VX mobiles has separate TX and RX cables, I'll give it a try and see what happens... 73 Demetre - SV1ENS Message: 7 Date: Wed, 16 Jul 2003 18:48:18

Great information - I am curious were you using your the mic that comes with the 817 or was it an up grade? Todd - KB4KAY

The ARDTS-817 Programming Software can be used to program the memories as well as export a .csv file. It is avilable from RT Systems for a small fee. It also allows tab-delimited exports. It also