WorldwideDX Amateur Radio Forums

what would be a decent AND inexpensive antenna tuner that will allow a sigma 4 to make a decent match for a 2950DX usable frequency range ? power would be about 200 pep .

id also appreciate links to simplified/dummy down info on understanding tuners , how they work and what separates good ones from bad ones ..... if possible .

thanks

Possibly the LDG -200PRO / About $200-$250

Products LDG Electronics

MFJ Enterprises Inc.

One of these used can be had for ~$120

How broadband is your Sigma IV?

10m?????

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BASE: Kenwood TS-2000 w/Alpha Delta DX-CC, Diamond X50A, Sirio SY27-4, and IMAX 2000.
MOBILE: Galaxy DX99V w/RF Limited CR-577 mic, Sirio Z-180. Yaesu FT-8800R & Diamond NR-770.
"...2 WR-011..."

try mfj 949

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BASE-RCI 2950, ts350hdv,st-65dx
MOBILE-ss3900,mm9,636l SE

If you plan on staying below 300W, look for a Dentron Jr. Monitor tuner.I've seen these at hamfests and swapmeets as lows as $20.The construction is 10X better than a comparable MFJ.

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Just a few listed of many there.

for what you are trying to do if you happen to have a couple air variable caps and an enclosure you may be able to homebrew one.

Guts of the 949.

There have been cases in which there is arcing in the variable capacitors.

Attached Images

versa_tuner_ii_mfj_949e_413595.jpg (46.6 KB, 53 views)

__________________
BASE: Kenwood TS-2000 w/Alpha Delta DX-CC, Diamond X50A, Sirio SY27-4, and IMAX 2000.
MOBILE: Galaxy DX99V w/RF Limited CR-577 mic, Sirio Z-180. Yaesu FT-8800R & Diamond NR-770.
"...2 WR-011..."

When i had my Sigma 4 up had it set for 27.000 and did the full 11 meter band no problem didnt go over 1.5 SWR on either end... didnt do high 28's so couldnt say... what it would do there



and Booty you say you have a REAL Sigma 4 with the 3 arials that go to the hoop?