Search found 39 matches

by vacuum tube
Mon Jan 08, 2018 8:10 am
Forum: FM Radio
Topic: Singling out 2 stations on same frequency
Replies: 30
Views: 1852

Re: Singling out 2 stations on same frequency

I think we are on the same page in this discussion, that the OP would have a very difficult if not impossibles task to get reliable reception of a station so distant. I agree the best advise is to listen online. This is a problem that I have with internet exchanges, that get misunderstood and then g...
by vacuum tube
Sun Jan 07, 2018 8:41 am
Forum: FM Radio
Topic: Singling out 2 stations on same frequency
Replies: 30
Views: 1852

Re: Singling out 2 stations on same frequency

The NY city translator case you refer to is W292DV, but the "distant" signal that was being interfered with is a co channel Class A in Eatonton, NJ 33 miles away. A station with a 40 dbu + signal over most of New York City. The translator was not shut down but is operating under a STA at 4 watts fro...
by vacuum tube
Fri Jan 05, 2018 2:34 pm
Forum: FM Radio
Topic: Singling out 2 stations on same frequency
Replies: 30
Views: 1852

Re: Singling out 2 stations on same frequency

Addressing the last reply by W2XJ to complain to the FCC.... He has no standing. He is trying to listen to a station 250 miles distant that is being "interfered" by another full service FM ~60 miles away that has been on the air with it's licensed facilities since the mid 70's. The translator is yet...
by vacuum tube
Thu Dec 07, 2017 9:47 am
Forum: FM Radio
Topic: Singling out 2 stations on same frequency
Replies: 30
Views: 1852

Re: Singling out 2 stations on same frequency

This will probably be a moot point for the OP. I see there is a CP for a 110 watt translator in Baltimore on 106.9, so that will probably wipe out any DX on that frequency locally when it comes online. DX ing on FM broadcast is becoming a thing of past with all the translators going on the air. More...
by vacuum tube
Wed Dec 06, 2017 8:26 am
Forum: FM Radio
Topic: Singling out 2 stations on same frequency
Replies: 30
Views: 1852

Re: Singling out 2 stations on same frequency

My guess is that if you can receive that fringe a signal at all someone will be putting a translator on that frequency in your local area before long. From my experience those cheap antenna are a "you get what you pay for" JUNK! The built in amplifiers are noisy and very easy to strong signal overlo...
by vacuum tube
Tue Nov 28, 2017 10:01 am
Forum: Ask the Engineers
Topic: Offical AMC 8 Transition Thread (was Sat. AMC-8)
Replies: 153
Views: 15808

Re: Offical AMC 8 Transition Thread (was Sat. AMC-8)

It appears from my receiver logs the switch was made this morning...around 3:09AM EST for Westwood One and 6:09 AM EST for Premiere. I am getting about a DB or so better E/B on Westwood (12.8 is up to 14). Premiere was already maxed out at 15+. Curious to see if anyone else noticed. Using a 3.8 mete...
by vacuum tube
Tue Nov 07, 2017 8:47 am
Forum: FM Radio
Topic: OMB PTX-20 test and repair help required
Replies: 15
Views: 893

Re: OMB PTX-20 test and repair help required

Guessing the POT AJ is the power out adjustment.
by vacuum tube
Tue Nov 07, 2017 8:46 am
Forum: FM Radio
Topic: OMB PTX-20 test and repair help required
Replies: 15
Views: 893

Re: OMB PTX-20 test and repair help required

I would guess the 50 watt scale is for forward power and the 5 watt scale is for reflected power. It looks like the toggle switches between the forward and reflected reading. Does one of the pots adjust the power output????
by vacuum tube
Tue Aug 22, 2017 7:53 am
Forum: AM Radio
Topic: Bleed over
Replies: 7
Views: 1114

Re: Bleed over

The red flag here is both transmitters limited to 750 watts. Are the transmitters folding back due to VSWR? If you have a dummy load put it on one transmitter at a time and see if they make power on the dummy load, or turn one transmitter off and see if you are able to make power with the transmitte...
by vacuum tube
Mon Aug 14, 2017 7:16 am
Forum: AM Radio
Topic: RCA BTA1M transmitter
Replies: 13
Views: 1907

Re: RCA BTA1M transmitter

They started using the 4-400's in the BTA 1R1 which I believe came out in 1959 or 60.
by vacuum tube
Tue Aug 01, 2017 2:14 pm
Forum: FM Radio
Topic: EAS Antenna Issue
Replies: 13
Views: 1623

Re: EAS Antenna Issue

Good point w9wi, the Sony HD radios and tuner are amazing analog receivers. I am sitting right under the antenna for a 250w translator on 98.9 and can receive 98.7 60 miles away with no problem. The Sony XDR-F1HD tuners can bit found on ebay but they sell for more than what they cost new.
by vacuum tube
Tue Aug 01, 2017 12:27 pm
Forum: FM Radio
Topic: EAS Antenna Issue
Replies: 13
Views: 1623

Re: EAS Antenna Issue

Instead of pointing the yagi at the intended signal(104.9), you might try pointing it so the deepest side null is to the offending signal(105.1). That might work otherwise a notch filter may be in order. If the splitter has any amplification get rid of that.
by vacuum tube
Wed Apr 12, 2017 7:09 am
Forum: AM Radio
Topic: MW10B-A little help?
Replies: 16
Views: 2239

Re: MW10B-A little help?

The old broadcasters rule of thumb "we're going to save $1000 even if it costs $10000"
by vacuum tube
Mon Feb 13, 2017 8:52 am
Forum: FM Radio
Topic: FM Clock Radio with good blanketing protection recommendation
Replies: 7
Views: 1106

Re: FM Clock Radio with good blanketing protection recommendation

The Sony HD radios are a clock radio and they were excellent, having the same tuner as the Sony XDR-F1HD tuner. The models were the XDR-S3HD and the XDR-S10HDIP. They are no longer made, but they show up on Ebay all the time. The Sony FM tuner in these radios is one of the best I have ever heard for...
by vacuum tube
Mon Dec 05, 2016 2:43 pm
Forum: FM Radio
Topic: Best LPFM antenna
Replies: 6
Views: 1172

Re: Best LPFM antenna

My vote is for the Nicom BKG 77. I have a few, they work fine and are broadband to cover the entire FM band. Ice does not bother them and no wind load of radoms. The price is right as well. Depending on connector they are rated at 2 kw per bay.