Does anyone make or know who can make a bridge cable for two HT1250s? We are looking to tie two VHF handhelds to tie two channels together. We need a lightweight setup that would be hiked into the backcountry, left on a mountain top or ridge for 8 hours to help project coverage into basins we currently don't have coverage. We would talk into it on one of our repeated county VHF frequencies and this would tie them to a simplex VHF channels to where the field teams are working.
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HT1250 Bridge Cable
- Thread starter skicooper
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Using this setup you would have to wait for the repeater to drop before the back-to-back handhelds can turn around and send calls in the other direction. A very short repeater hang time would help. Depending on the amount of calls the handhelds might not survive the extended transmit time as well as the batteries.
We have very short hang times now. It can even be programmed shorter as we have control of that. I'm not too worried about the battery time as we rarely use it more than 4 hours and it's maybe 20% duty time at best. Thanks all for the input!
Program one of the handhelds to VOX, and put the output frequency in this radio.
Program a few of the channels in the other radio to the input frequency, scan those channels, and set this radio to beep whenever the scan stops.
Tape the mike on the output freq radio (you need an external mike on the output radio for the VOX to work) to the speaker of the input radio.
Whenever the scan stops on the input radio, the beep will key the output radio (because it's on VOX).
You can program the VOX hangtime to whatever you want. We do 3 seconds.
Put one radio directly above the other, so the antennas are in the same vertical plane. We do it by taping the two radios to a broomstick, one directly over the other, and push the broomstick into the ground.
Keep the power low, and be a few Mhz apart.
This actually works. The output radio will not desense the input radio, as long as you set them up one directly above the other as described.
Program a few of the channels in the other radio to the input frequency, scan those channels, and set this radio to beep whenever the scan stops.
Tape the mike on the output freq radio (you need an external mike on the output radio for the VOX to work) to the speaker of the input radio.
Whenever the scan stops on the input radio, the beep will key the output radio (because it's on VOX).
You can program the VOX hangtime to whatever you want. We do 3 seconds.
Put one radio directly above the other, so the antennas are in the same vertical plane. We do it by taping the two radios to a broomstick, one directly over the other, and push the broomstick into the ground.
Keep the power low, and be a few Mhz apart.
This actually works. The output radio will not desense the input radio, as long as you set them up one directly above the other as described.
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