Silly question

VHF/UHF Topics.
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M0HJO
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Re: Silly question

Unread post by M0HJO »

I have also found the the dual band antennas work much better than the tri band ones.

I changed to dual band and a single ant for the other band.

Check the SWR on some of these tri bands, terrible.
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sidspop
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Re: Silly question

Unread post by sidspop »

Re-kindling the old thread.
I removed the V2000 thing and feeder, and replaced with a dual band antenna, around 6 ft tall. Not sure what it is.
I even splashed out on new feeder, Force Zero, which is very similar to the old H100. Decent compression plugs as well.
Still the same problem. I checked the old feeder by stuffing 20 watts up it, and getting 18.5 out the other end (Bird 43)
I am being heard, but I struggle to receive all but strong local stations. Signals that are lower than around s8 on meter come through with noise, not fully quieting. I have tried numerous radios, and two that seemed to work the best are TR9130, and Tr711E. Both of those have helical filters in the front end, and as such I am now tempted to think that my radio is being desensitized by a strong local signal. If I remove the antenna patch cable from switch box, and hold the pin with finger, I get a signal on 154 Mhz that is end scale, using me as an antenna. Some data transmission system, which must be very close by.
Wonder if that sounds feasible?
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G0KZZ
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Re: Silly question

Unread post by G0KZZ »

Could that signal on 154MHz be the local oscillator from one of your other rigs? What is the exact frequency of the signal?

My thinking is 154ish minus 10.7MHz-ish would be around 144MHz.

Just a thought, Mark...
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