Search String: Display: Description: Sort:

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Fwd\:\s+RG\-149\:\s+50\s+ohm\/70\s+ohm\s+\-\s+does\s+it\s+matter\?\s*$/: 7 ]

Total 7 documents matching your query.

1. [TowerTalk] Fwd: RG-149: 50 ohm/70 ohm - does it matter? (score: 1)
Author: Hans Hammarquist <hanslg@aol.com>
Date: Fri, 13 Dec 2013 15:03:53 -0500 (EST)
If you have a true 50 ohm load and a 75 ohm feeder you may end up with an SWR of 1:2, which many SS amps can't handle. That's the worst condition. I am using 75 ohms myself and rarely run into proble
/archives//html/Towertalk/2013-12/msg00262.html (9,070 bytes)

2. Re: [TowerTalk] Fwd: RG-149: 50 ohm/70 ohm - does it matter? (score: 1)
Author: "Dan Schaaf" <dan-schaaf@att.net>
Date: Fri, 13 Dec 2013 15:59:12 -0500
1:2 or 2:1 ??? SWR with 50 ohm load and 75 ohm feeder the SWR is likely to be 75/50 = 1.5:1 AT RESONANCE point of the antenna. Once you deviate from the resonant point, it is no longer a 50 ohm resis
/archives//html/Towertalk/2013-12/msg00263.html (11,233 bytes)

3. [TowerTalk] Fwd: RG-149: 50 ohm/70 ohm - does it matter? (score: 1)
Author: Hans Hammarquist <hanslg@aol.com>
Date: Sun, 15 Dec 2013 20:40:45 -0500 (EST)
I think the real question is whether a such a hybrid/coupler/line sampler would have a characteristic impedance? That is, if I have a 75 ohm source and a 75 ohm load and I put a line sampler (designe
/archives//html/Towertalk/2013-12/msg00309.html (10,811 bytes)

4. Re: [TowerTalk] Fwd: RG-149: 50 ohm/70 ohm - does it matter? (score: 1)
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Sun, 15 Dec 2013 22:29:52 -0500
On 12/15/2013 8:40 PM, Hans Hammarquist wrote: --Original Message-- From: Jim Lux <jimlux@earthlink.net> To: towertalk <towertalk@contesting.com> Sent: Sun, Dec 15, 2013 7:41 pm Subject: Re: [TowerTa
/archives//html/Towertalk/2013-12/msg00310.html (12,644 bytes)

5. Re: [TowerTalk] Fwd: RG-149: 50 ohm/70 ohm - does it matter? (score: 1)
Author: Michael Tope <W4EF@ca.rr.com>
Date: Sun, 15 Dec 2013 20:50:27 -0800
On 12/15/2013 5:40 PM, Hans Hammarquist wrote: --Original Message-- From: Jim Lux <jimlux@earthlink.net> To: towertalk <towertalk@contesting.com> Sent: Sun, Dec 15, 2013 7:41 pm Subject: Re: [TowerTa
/archives//html/Towertalk/2013-12/msg00311.html (11,448 bytes)

6. Re: [TowerTalk] Fwd: RG-149: 50 ohm/70 ohm - does it matter? (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Sun, 15 Dec 2013 21:05:22 -0800
I think the real question is whether a such a hybrid/coupler/line sampler would have a characteristic impedance? That is, if I have a 75 ohm source and a 75 ohm load and I put a line sampler (designe
/archives//html/Towertalk/2013-12/msg00312.html (14,045 bytes)

7. Re: [TowerTalk] Fwd: RG-149: 50 ohm/70 ohm - does it matter? (score: 1)
Author: Michael Tope <W4EF@ca.rr.com>
Date: Sun, 15 Dec 2013 22:55:40 -0800
On 12/15/2013 9:05 PM, Jim Lux wrote: <SCENARIO 1> I think the real question is whether a such a hybrid/coupler/line sampler would have a characteristic impedance? That is, if I have a 75 ohm source
/archives//html/Towertalk/2013-12/msg00313.html (15,606 bytes)


This search system is powered by Namazu