ARRL

W1VT

Joined: Sat, Apr 4th 1998, 00:00 Roles: N/A Moderates: N/A

Latest Topics

Topic Created Posts Views Last Activity
QST Downloads Feb 19th, 16:34 1 453 on 19/2/16
March 2016 QST Compact Multiband Dipole Feb 19th, 15:23 1 462 on 19/2/16
Antenna analyzer vs feedline type Sep 21st 2012, 14:37 1 2,401 on 21/9/12
USB to Serial Port problems--Prolific Drivers Aug 3rd 2012, 18:27 2 2,867 on 26/12/15
Italian Phishing emails! Dec 13th 2011, 14:20 1 2,096 on 13/12/11
John K0GMO needs help designing SS Amp Nov 17th 2011, 15:53 1 1,920 on 17/11/11
1 Farad Capacitor to Eliminate Headlight Flicker? Oct 19th 2011, 13:14 4 3,287 on 9/11/11
History of Relay Rack Dimensions? Oct 17th 2011, 12:58 2 2,200 on 25/10/11
Miswired Selsyn Oct 13th 2011, 17:51 1 2,092 on 13/10/11
Stealth Antenna wire Sep 12th 2011, 12:51 2 2,723 on 13/9/11

Latest Posts

Topic Author Posted On
Interface Rigblaster Pro, Dell PC and an Icom 7410 N9JTM 23 hours, 31 minutes ago
http://www.eham.net/ehamforum/smf/index.php?topic=93555.0
Here is a discussion of your options for transmitting with the 7410 on RTTY.

Zack W1VT
ARRL Senior Engineer [/color]
Using relays to switch rig coax cables to common antenna coax WA2P 4 days, 23 hours ago
http://www.w8ji.com/rf_relay_contact.htm
AD5X and W8ZR have tested relays for projects on their respective web sites if you just want to copy something that works.

Zack W1VT
ARRL Senior Lab Engineer
Computer interfaceing WD4PLB 1 week, 1 day ago

That particular computer is unusually difficult to interface to the usual soundcard interfaces used for digital communications--you should consider using an external USB soundcard with that computer. Or finding a different computer.

Zack W1VT
ARRL Senior Lab Engineer
Tower Guys into antennas?? K6NYB 1 week, 1 day ago
Single support low-band antennas

Antennas with gain and good F/B can be a challenge on the low-bands. This is especially true if only one support, such as a tower, is available. It turns out there are a lot of relatively simple ways to build a vertically polarized array with very good performance. Half wave sloper arrays have many possibilities as shown in High performance half-sloper arrays , 1,104 kb, QEX Jan/Feb 2004. There are also a variety of other ways to go, as discussed in single support gain antennas, 415 kb, NCJ Mar/Apr 2003.
http://www.antennasbyn6lf.com/arrl_antenna_articles/
ALE with a Yaesu-857D & ATAS-120 KJ6BQM 2 weeks, 1 day ago
http://www.n2ckh.com/PC_ALE_FORUM/
Here is a page of ALE resources.

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