Maco m105c help!! Appreciated!

[KC1PNR]

Hello all! I have a Maco m105c not sure why but swr is 5 and the antenna is perfectly measured. I set it for 28.4 since I'm a tech and all I can use is limited.
Radio is. Yaseu ft 840
Tuner ldg z100 plus
50 ft coax rg 58
Antenna is m105c maco 26 ft

The gamma match may have been switched as this was a gift to me. It's not raised up yet. Planning on 25 ft high mast.

 

[Elliott Hart]

Hello all! I have a Maco m105c not sure why but swr is 5 and the antenna is perfectly measured. I set it for 28.4 since I'm a tech and all I can use is limited.
Radio is. Yaseu ft 840
Tuner ldg z100 plus
50 ft coax rg 58
Antenna is m105c maco 26 ft

The gamma match may have been switched as this was a gift to me. It's not raised up yet. Planning on 25 ft high mast.

When your SWR is that I high; I would look for a short somewhere? coax? Gamma rod?

 

[DoctorAudio]

It won't ever tune right if it's close to the ground, especially if you have it mounted horizontal. your either going to have to get it at least 15 feet off of the ground or mount it so the reflector is flat on the ground with the boom/antenna pointed straight up in the air.

 

[KC1PNR]

Yeah I think you're right. Next goal is to get it up in the air

 

[KC1PNR]

It won't ever tune right if it's close to the ground, especially if you have it mounted horizontal. your either going to have to get it at least 15 feet off of the ground or mount it so the reflector is flat on the ground with the boom/antenna pointed straight up in the air.

 

[Shadetree Mechanic]

Welcome!
You could point it straight up with the reflector on the ground. This would get you really close.

 

[2AF409]

By no means am I an expert and I really need to go to the VA for new glasses, BUT, you need to check your gamma assembly... After blowing up the picture I dont see the shorting bar.. After that stand it up vertically on plastic milk crates or tie a rope around the last director hoisting up via a tree limb and check adjustment.. Ive always split the element and direct fed (hot feed) the driven and threw the gammas in the shed...

 

[Elliott Hart]

See pic.. No shorting bar

 

[BJ radionut]

What is a Gamma match in the context of the driven element of a Yagi antenna?

How (and why) does a Gamma match work, when used on the driven element of a Yagi antenna? As shown here: (source: http://www.iw5edi.com/ham-radio/?2-element-yagi-for-10-meters-band,49) The article

ham.stackexchange.com

2 element Yagi for 10 meters band - IW5EDI Simone - Ham-Radio

A 2 element beam antenna for 10 meters band Living in a condo has many advantages, none of which is being able to mount a tribander on a 60-foot tower. So I make do with a long, thin random wire that works nicely as long as the New England wind, snow and ice don’t conspireRead More...

www.iw5edi.com

Gamma matching online calculator - 3G-aerial

Online calculator of the gamma matching device for a planar dipole of the Yagi-Uda antenna

3g-aerial.biz

 

[KC1PNR]

What is a Gamma match in the context of the driven element of a Yagi antenna?

How (and why) does a Gamma match work, when used on the driven element of a Yagi antenna? As shown here: (source: http://www.iw5edi.com/ham-radio/?2-element-yagi-for-10-meters-band,49) The article

ham.stackexchange.com

2 element Yagi for 10 meters band - IW5EDI Simone - Ham-Radio

A 2 element beam antenna for 10 meters band Living in a condo has many advantages, none of which is being able to mount a tribander on a 60-foot tower. So I make do with a long, thin random wire that works nicely as long as the New England wind, snow and ice don’t conspireRead More...

www.iw5edi.com

Gamma matching online calculator - 3G-aerial

Online calculator of the gamma matching device for a planar dipole of the Yagi-Uda antenna

3g-aerial.biz

Thank you! Will be looking at this after work and get a better pic of the gamma as well